Steel pipe column strength detection device

Abstract

The utility model provides a steel pipe column strength detection device, which relates to the technical field of strength detection equipment, and comprises a main base, an upper detection base and a lower lifting support, the top of the main base is provided with the upper detection base, the lower lifting support is arranged below the upper detection base, and the bottom of the upper detection base is convexly provided with a lower raised line. An upper portal frame is fixed to the middle of the main base, a driving motor is fixed to the lower portion of the upper portal frame, and a main shaft of the driving motor is fixed to the driving gear. The upper detection base moves to the position below the upper detection pressing block along the upper rolling wheels for detection, rapid switching of the steel pipe columns is achieved through movement of the upper detection base, the waiting time before detection of the steel pipe columns is shortened, and the problems that after the steel pipe columns are moved out, detection of the next steel pipe column can be conducted, the reinstallation time is long, and the strength detection interval time is long are solved.

Description

Technical Field

[0001] This utility model relates to the field of strength testing equipment technology, and in particular to a strength testing device for steel pipe columns. Background Technology

[0002] In the construction of cast-in-place box girders, steel pipe columns are often set on the ground, Bailey beams are set on top of the steel pipe columns, and then steel pipe columns are set on top of the Bailey beams to form a support structure, which supports the formwork below the cast-in-place box girder and provides stable support and load transfer during the construction of the cast-in-place box girder.

[0003] Steel pipe columns are one of the main supporting components of the upper construction formwork. The strength of the steel pipe columns is crucial to the stable load-bearing capacity of the construction support. The steel pipe columns are tested by a strength testing device to ensure that their strength meets the standards. The strength testing device uses a hydraulic cylinder to press down on the steel pipe column to perform the strength test. The steel pipe column needs to be pushed horizontally to move under the hydraulic cylinder. After one steel pipe column is tested, it can only be moved out before the next steel pipe column can be reinstalled and tested. The reinstallation time of the steel pipe columns is relatively long, and the interval between strength tests is also relatively long. Summary of the Invention

[0004] This disclosure relates to a steel pipe column strength testing device. Steel pipe columns are placed on both sides of the upper testing base. The upper testing base moves along the upper rollers to the bottom of the upper testing block for testing. The movement of the upper testing base along the upper rollers reduces friction and movement resistance. The movement of the upper testing base enables rapid switching of steel pipe columns and allows for the replacement and installation of another steel pipe column during the testing of one, shortening the waiting time before the steel pipe column is tested.

[0005] In a first aspect, this disclosure provides a steel pipe column strength testing device, specifically comprising: a main base, an upper testing base, and a lower lifting support. The upper testing base is disposed on the top of the main base, and the lower lifting support is disposed below the upper testing base. An upper gantry is fixed in the middle of the main base, and a drive motor is fixed in the lower part of the upper gantry. The main shaft of the drive motor and a drive gear are fixed together. A testing hydraulic cylinder is fixed in the upper part of the upper gantry. An upper testing pressure block is fixedly connected to the telescopic rod of the testing hydraulic cylinder. A lower connecting groove is recessed in the top of the main base.

[0006] In at least some embodiments, the bottom of the upper detection base is provided with a lower protrusion strip, and a side toothed rack is fixedly provided on the side of the upper detection base.

[0007] In at least some embodiments, the lower protrusion is slidably disposed inside the lower connecting groove. The lower protrusion moves horizontally and vertically along the lower connecting groove. The side rack meshes with the drive gear. The drive motor drives the drive gear to drive the meshing side rack. The side rack and the upper detection base move horizontally synchronously.

[0008] In at least some embodiments, the top pivot of the lower lifting bracket is equipped with an upper roller, and the bottom of the lower lifting bracket is equipped with a lower hydraulic support cylinder.

[0009] In at least some embodiments, the lower lifting bracket is symmetrically arranged on both sides of the main base, the lower end of the lower hydraulic support cylinder is fixedly connected to the main base, the lower hydraulic support cylinder extends and supports the lower lifting bracket to move upward, the upper roller of the lower lifting bracket contacts the bottom of the upper detection base and supports the upper detection base to move upward, and the upper detection base moves upward away from the main base.

[0010] In at least some embodiments, when the lower lifting bracket descends, the upper roller moves away from the bottom surface of the upper detection base, and the bottom surface of the upper detection base and the top surface of the main base come into contact, thereby expanding the contact support surface between the main base and the upper detection base, increasing the support force on the upper detection base, and avoiding reliance on the upper roller and the upper detection base for support.

[0011] In at least some embodiments, when the lower lifting bracket rises, the upper roller rises and comes into contact with the bottom surface of the upper detection base. The upper detection base moves upward and moves away from the main base, no longer in contact. The upper detection base moves along the upper roller to the bottom of the upper detection block. The detection hydraulic cylinder extends to support the upper detection block and presses down on the steel pipe column for strength testing. The upper detection base moves along the upper roller to further reduce the friction during the movement.

[0012] This utility model provides a steel pipe column strength testing device, which has the following beneficial effects:

[0013] The steel pipe columns are placed on both sides of the upper testing base. The upper testing base moves along the upper roller to the bottom of the upper testing pressure block for testing. The friction of the upper testing base moving along the upper roller is smaller, reducing the moving resistance of the upper testing base. The movement of the upper testing base enables the rapid switching of steel pipe columns, and the replacement and installation of another steel pipe column can be carried out during the testing of one steel pipe column, shortening the installation time before the steel pipe column is tested.

[0014] During the inspection of steel pipe columns, the lower lifting bracket moves down away from the upper inspection base, and the upper inspection base falls and stays in contact with the main base, expanding the support contact area between the main base and the upper inspection base, increasing the support force on the upper inspection base, and avoiding the situation where the central shaft of the upper roller is easily deformed and damaged when it relies on the upper roller and the upper inspection base to be in contact for support, which leads to a high frequency of damage to the upper roller. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0019] Figure 2 A schematic diagram of the cross-sectional structure of the main base and upper gantry frame of this application is shown;

[0020] Figure 3 A schematic diagram of the lower lifting support structure of this application is shown;

[0021] Figure 4 A schematic diagram of the structure of the lower lifting support in the upward moving state of this application is shown;

[0022] Figure 5 A schematic diagram of the structure of the upper detection base of this application is shown;

[0023] Figure 6 A schematic diagram of the structure in the split state of this application is shown;

[0024] List of reference numerals

[0025] 1. Main base; 101. Upper gantry frame; 102. Drive gear; 103. Drive motor; 104. Detection hydraulic cylinder; 105. Upper detection pressure block; 106. Lower connecting slide rail;

[0026] 2. Upper detection base; 201. Lower protrusion; 202. Side rack;

[0027] 3. Lower lifting bracket; 301. Upper roller; 302. Lower hydraulic support cylinder. Detailed Implementation

[0028] 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. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example 1: Please refer to Figures 1 to 6 :

[0030] This utility model proposes a steel pipe column strength testing device, comprising: a main base 1, an upper testing base 2, and a lower lifting support 3. An upper gantry 101 is fixed to the middle of the main base 1, and a drive motor 103 is fixed to the lower part of the upper gantry 101. The main shaft of the drive motor 103 and a drive gear 102 are fixed together. A testing hydraulic cylinder 104 is fixedly installed on the upper part of the upper gantry 101, and an upper testing pressure block 105 is fixedly connected to the telescopic rod of the testing hydraulic cylinder 104. A lower connecting groove 106 is recessed in the top of the main base 1. The upper testing base 2 is installed on the top of the main base 1, and a lower protruding strip 201 is protruding from the bottom of the upper testing base 2. A side rack 202 is fixedly installed on the side of the upper testing base 2. The lower protruding strip 201 is slidably disposed inside the lower connecting groove 106. The lower protruding strip 201 moves along the lower connecting groove 106. The slide 106 moves horizontally and vertically. The side rack 202 meshes with the drive gear 102. The drive motor 103 drives the drive gear 102 to drive the meshing side rack 202. The side rack 202 and the upper detection base 2 move horizontally synchronously. A lower lifting bracket 3 is provided below the upper detection base 2. The top shaft of the lower lifting bracket 3 is equipped with an upper roller 301. The bottom of the lower lifting bracket 3 is equipped with a lower hydraulic support cylinder 302. The lower lifting bracket 3 is symmetrically arranged on both sides of the main base 1. The lower end of the lower hydraulic support cylinder 302 is fixedly connected to the main base 1. The lower hydraulic support cylinder 302 extends and supports the lower lifting bracket 3 to move upward. The upper roller 301 of the lower lifting bracket 3 contacts the bottom of the upper detection base 2 and supports the upper detection base 2 to move upward. The upper detection base 2 moves upward away from the main base 1.

[0031] In this embodiment, when the lower lifting bracket 3 descends, the upper roller 301 moves away from the bottom surface of the upper detection base 2, and the bottom surface of the upper detection base 2 and the top surface of the main base 1 come into contact, thereby expanding the contact support surface between the main base 1 and the upper detection base 2 and increasing the support force on the upper detection base 2. This avoids the situation where the upper roller 301 is easily deformed and damaged due to pressure on the central shaft of the upper roller 301, and the upper roller 301 has a high failure frequency.

[0032] In this embodiment, when the lower lifting bracket 3 rises, the upper roller 301 rises and comes into contact with the bottom surface of the upper detection base 2. The upper detection base 2 moves upward and moves away from the main base 1, no longer in contact. The upper detection base 2 moves along the upper roller 301 to below the upper detection pressure block 105. The detection hydraulic cylinder 104 extends to support the upper detection pressure block 105 to press down on the steel pipe column for strength testing. The upper detection base 2 moves along the upper roller 301 to further reduce the friction during movement and reduce the resistance of the synchronous movement of the upper detection base 2 and the steel pipe column. The reciprocating movement of the upper detection base 2 realizes the rapid switching of the two steel pipe columns on both sides, shortens the installation time before the steel pipe column is tested, and shortens the waiting time for the steel pipe column testing.

[0033] In Example 2, based on Example 1, the upper gantry 101 is divided into upper and lower sections. The upper and lower sections of the upper gantry 101 are slidably connected and a hydraulic rod is provided between them. The height of the upper gantry 101 is adjusted by hydraulic cylinders to raise or lower it, and the adjustment is made according to the steel pipe columns of different heights to achieve the goal of taking into account steel pipe columns of different heights.

[0034] The working principle of this embodiment is as follows: Steel pipe columns are placed on both sides of the upper detection base 2. The lower hydraulic support cylinder 302 extends and supports the lower lifting bracket 3 to move upward. The upper roller 301 of the lower lifting bracket 3 contacts the bottom of the upper detection base 2 and supports the upper detection base 2 to move upward. The upper detection base 2 moves upward away from the main base 1. The drive motor 103 drives the drive gear 102 to drive the meshing side rack 202. The side rack 202 and the upper detection base 2 move horizontally synchronously. The upper detection base 2 moves along the upper roller 301 to the lower part of the upper detection pressure block 105. The detection hydraulic cylinder 104 extends and supports the upper detection pressure block 105 to press down the steel pipe column for strength testing. The upper detection base 2 moves along the upper roller 301 to further reduce the friction during movement and reduce the resistance of the synchronous movement of the upper detection base 2 and the steel pipe column. The reciprocating movement of the upper detection base 2 realizes the rapid switching of the two steel pipe columns on both sides. During the testing of one steel pipe column, the replacement and installation operation of the other steel pipe column can be performed, shortening the installation time before the steel pipe column is tested and shortening the waiting time for the steel pipe column to be installed in place before the test.

[0035] During the inspection of the steel pipe column, the lower hydraulic support cylinder 302 shortens, and the lower hydraulic support cylinder 302 and the lower lifting bracket 3 descend synchronously. The lower lifting bracket 3 moves away from the upper inspection base 2, and the upper inspection base 2 falls and stays in contact with the main base 1, expanding the contact support surface between the main base 1 and the upper inspection base 2, increasing the support force on the upper inspection base 2. This avoids the situation where, when the upper inspection base 2 is supported by the upper roller 301 in contact with the upper inspection base 2, the upper inspection base 2 is subjected to the downward pressure of the inspection hydraulic cylinder 104 and transmitted to the upper roller 301 during the inspection process. The central shaft of the upper roller 301 is easily deformed and damaged under pressure, resulting in a high failure frequency of the upper roller 301. This avoids the situation where the upper roller 301 is subjected to pressure, extends its service life, and reduces the possibility of deformation of the upper inspection base 2 under pressure.

[0036] The following points should be noted in this article:

[0037] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0038] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0039] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A steel pipe column strength testing device, comprising: The main base (1), the upper detection base (2) and the lower lifting bracket (3) are characterized in that the upper detection base (2) is provided on the top of the main base (1), the lower lifting bracket (3) is provided below the upper detection base (2), the lower protrusion (201) is provided on the bottom of the upper detection base (2), the side rack (202) is fixedly provided on the side of the upper detection base (2), the upper gantry (101) is fixed in the middle of the main base (1), the drive motor (103) is fixed in the lower part of the upper gantry (101), and the main shaft and drive gear (102) of the drive motor (103) are fixed.

2. The steel pipe column strength testing device according to claim 1, characterized in that, The upper part of the upper gantry (101) is fixedly equipped with a detection hydraulic cylinder (104), and the telescopic rod of the detection hydraulic cylinder (104) is fixedly connected to an upper detection pressure block (105). The top of the main base (1) is recessed and equipped with a lower connecting slide groove (106).

3. The steel pipe column strength testing device according to claim 2, characterized in that, The lower protrusion (201) is slidably disposed inside the lower connecting groove (106), and the side rack (202) meshes with the drive gear (102).

4. The steel pipe column strength testing device according to claim 1, characterized in that, The top shaft of the lower lifting bracket (3) is equipped with an upper roller (301) for rotation, and the bottom of the lower lifting bracket (3) is equipped with a lower hydraulic support cylinder (302).

5. The steel pipe column strength testing device according to claim 4, characterized in that, The lower lifting bracket (3) is symmetrically arranged on both sides of the main base (1), and the lower end of the lower hydraulic support cylinder (302) is fixedly connected to the main base (1).

6. The steel pipe column strength testing device according to claim 5, characterized in that, When the lower lifting bracket (3) descends, the upper roller (301) moves away from the bottom surface of the upper detection base (2), and the bottom surface of the upper detection base (2) and the top surface of the main base (1) come into contact.

7. The steel pipe column strength testing device according to claim 6, characterized in that, When the lower lifting bracket (3) rises, the upper roller (301) rises and comes into contact with the bottom surface of the upper detection base (2), and the upper detection base (2) moves upward and moves away from the main base (1) and no longer comes into contact.

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