CN219417010U - Reinforcing bar residual deformation tester - Google Patents

Abstract

The application relates to a residual deformation tester of reinforcing bar, including the detection box, establish in the detection box and be located two holders of detection box both ends respectively, establish the first linear module on the inside wall of detection box and establish on the detection box and carry out data communication's controller with first linear module and broad width laser rangefinder sensor, the holder is configured to fixed the quilt, be equipped with broad width laser rangefinder sensor on the first linear module, the controller is configured to drive broad width laser rangefinder sensor and removes and send broad width laser rangefinder sensor's rangefinder data to the host computer. The utility model discloses a residual deformation tester of reinforcing bar can produce a large amount of data with the help of automatic test mode, has improved the data acquisition speed of the crooked residual deformation of reinforcing bar.

Description

Reinforcing bar residual deformation tester

Technical Field

The application relates to the technical field of detection, in particular to a reinforcing steel bar residual deformation tester.

Background

The residual deformation of the reinforcing steel bar refers to the non-recoverable deformation, the deformation of the material which enters the plastic stage after being unloaded to the initial state cannot be recovered to the initial state, part of the existing deformation cannot be recovered, and the part of the deformation which cannot be recovered is called the residual deformation. In the loading test, residual deformation refers to the deformation of the material that has entered the plastic phase, which is not recoverable after unloading.

The transverse deformation of the steel bar is obtained by using the length change after stretching and resetting, the process is to stretch the steel bar by using an extensometer, and then the transverse residual deformation is obtained. But in the bending residual deformation measurement this method is no longer applicable. In the bending residual deformation test, force needs to be applied to different positions of the reinforcing steel bars, and then the residual bending amount after the reinforcing steel bars recover the shape is detected. The difficulty of the test is that the position of the residual bending amount is uncertain, and the position adjustment and the test are required to be carried out for a plurality of times, so that the whole test process takes a long time.

Disclosure of Invention

The application provides a reinforcing bar residual deformation tester, can produce a large amount of data with the help of the test mode of automation, improved the data acquisition speed of the crooked residual deformation of reinforcing bar.

The above object of the present application is achieved by the following technical solutions:

the application provides a reinforcing bar residual deformation tester, include:

a detection box;

the two clamping pieces are arranged in the detection box and are respectively positioned at two ends of the detection box, and the clamping pieces are configured to fix a tested object;

the first linear module is arranged on the inner side wall of the detection box and is provided with a wide laser ranging sensor;

and the controller is arranged on the detection box and is in data communication with the first linear module and the wide laser ranging sensor, and is configured to drive the wide laser ranging sensor to move and send ranging data of the wide laser ranging sensor to the upper computer.

In one possible implementation of the present application, the clamping member includes:

the clamping table is arranged in the detection box;

the two clamping arms are both in rotary connection with the clamping table; and

the driving rod is arranged on the clamping table and is respectively in threaded connection with the two clamping arms;

the driving rod is provided with thread sections with opposite rotation directions at two ends, and the two thread sections are respectively in threaded connection with the two clamping arms.

In one possible implementation of the present application, the clamping member includes:

the clamping table is arranged in the detection box;

the rotating ring is rotationally connected with the clamping table; and

the fixed bolt is arranged on the rotating ring, and one end of the fixed bolt extends into the rotating ring.

In one possible implementation of the present application, at least one clamping table is slidingly connected to the cartridge.

In one possible implementation of the present application, the working surface of at least one clamping arm is provided with a first elastic layer.

In one possible implementation of the application, the fixing bolt is provided with a clamping plate.

In one possible implementation of the present application, the inner wall of the rotating ring and/or the clamping plate is provided with a second elastic layer.

Drawings

Fig. 1 is a schematic structural diagram of a reinforcing steel bar residual deformation tester provided by the application.

Fig. 2 is a schematic structural view of a clamping member provided in the present application.

Fig. 3 is a schematic structural view of another clamping member provided in the present application.

Fig. 4 is a schematic diagram of the operation of a broad-width laser ranging sensor provided in the present application.

In the figure, 1, a detection box, 2, a clamping piece, 3, a first linear module, 4, a wide-range laser ranging sensor, 5, a controller, 21, a clamping table, 22, a clamping arm, 23, a driving rod, 24, a rotating ring, 25, a fixing bolt, 26, a clamping plate, 31, a first elastic layer, 32 and a second elastic layer.

Detailed Description

The technical solutions in the present application are described in further detail below with reference to the accompanying drawings.

The application discloses residual deformation tester of reinforcing bar uses broad width laser rangefinder sensor 4 to carry out data acquisition to the crooked residual deformation of being tested (reinforcing bar), and data acquisition in-process, broad width laser rangefinder sensor 4 can be automatic along the length direction removal of being tested, and this in-process can produce a large amount of data.

The generated data is sent to the upper computer through the controller 5, and the upper computer performs data analysis, wherein the upper computer is a computer.

Please refer to fig. 1, the steel bar residual deformation tester disclosed in the application mainly comprises a detection box 1, clamping pieces 2, a first linear module 3, a wide-width laser ranging sensor 4 and a controller 5, wherein the two clamping pieces 2 are arranged in the detection box 1 and are respectively positioned at two ends of the detection box 1, and the clamping pieces 2 are used for fixing a tested object.

The structure of the clamping member 2 is as follows:

first, the holder 2 is composed of a holding table 21, holding arms 22, and a driving lever 23, the holding table 21 is provided in the cartridge 1, the number of the holding arms 22 is two, and both the holding arms 22 are rotatably connected with the holding table 21.

The driving rod 23 is arranged on the clamping table 21 and is respectively in threaded connection with the two clamping arms 22, and the specific connection mode is that the driving rod 23 is provided with threaded sections with opposite rotation directions at two ends, and the two threaded sections are respectively in threaded connection with the two clamping arms 22. When the driving rod 23 rotates, the two clamping arms 22 can be driven to move towards and away from each other, so that the tested fastening and loosening can be realized.

Second, the clamping piece 2 is composed of a clamping table 21, a rotating ring 24 and a fixing bolt 25, wherein the rotating ring 24 is rotationally connected with the clamping table 21, and the two are in interference fit. The fixing bolt 25 is mounted on the rotating ring 24, and one end of the fixing bolt 25 extends into the rotating ring 24 for abutting against a tested person.

The second structure is different from the first structure in that the rotation of the tested can be realized, and the tested can be tested from different angles.

The first linear module 3 is arranged on the inner side wall of the detection box 1, and a wide-width laser ranging sensor 4 is arranged on the first linear module, and the wide-width laser ranging sensor 4 can move along the tested length direction under the driving of the first linear module 3. During the movement, the broad range laser ranging sensor 4 generates test data.

Referring to fig. 4, the broad-width laser ranging sensor 4 can emit a laser line to scan a surface, and a single scan can generate a sufficient amount of data, for example, the reinforcing steel bar is deformed in a spatial range, and the scanning mode can describe the deformation.

Here, the distance between the detection end of the wide laser distance measuring sensor 4 and the inner wall of the detection case 1 is S1, and when the wide laser distance measuring sensor 4 moves to one position, a plurality of data are generated. Since the broad-width laser ranging sensor 4 emits a plurality of detection light rays, the detection light rays fall on the inner wall of the detection box 1 and the tested surface, and thus detection data with different values are generated.

When the wide-range laser ranging sensor 4 moves along the length direction of the test, a plurality of sets of detection data are generated, and the number of detection data in each set is a plurality.

The controller 5 is also installed on the detection box 1 and is in data communication with the first linear module 3 and the wide-range laser ranging sensor 4, and the controller 5 can drive the wide-range laser ranging sensor 4 to move and send ranging data of the wide-range laser ranging sensor 4 to the upper computer.

After the upper computer receives the complete detection data, the detection data are screened in a mode that one detection data with the minimum value is selected from each group, and then the detection data with the minimum value in the plurality of groups of detection data are displayed in a coordinate system.

In some examples, referring to fig. 2 and 3, at least one clamping table 21 is slidably connected to the cartridge 1, so that different lengths of test objects can be detected by adjusting the distance between the two clamping tables 21. In some possible implementations, the inner wall of the detection box 1 is provided with a sliding rail, the clamping table 21 is mounted on the sliding rail, and the clamping table 21 is temporarily fixed by using bolts.

In some examples, referring to fig. 2, a first elastic layer 31 is disposed on the working surface of at least one clamping arm 22, where the first elastic layer 31 is used to deform during the contact process to increase the stability of the tested fixing.

In some examples, referring to fig. 2, the fixing bolt 25 is provided with a clamping plate 26, and the clamping plate 26 can increase the contact area and play a role in improving the stability of the tested fixing. Further, the inner wall of the rotating ring 24 and/or the clamping plate 26 are provided with a second elastic layer 32, and the function of the second elastic layer 32 is the same as that of the first elastic layer 31, which is not described herein.

It should be understood that the controller 5 uses a single chip microcomputer (for example, 86C51 series), and the broad-width laser ranging sensor 4, for example, STL-1205-G05MQ, the broad-width laser ranging sensor 4 may directly output a digital signal, and if the output signal of the other type of broad-width laser ranging sensor 4 is an analog quantity, an AD converter is required to be equipped.

The obtained digital signal is sent to the controller 5 through a General Purpose Input Output (GPIO), the controller 5 sends data to an upper computer in a wired mode and a wireless mode, the wireless mode can be realized through a Bluetooth module, and the wiring mode is as follows: VCC- >5V, GND- > GND, TXD- > RXD, RXD- > TXD; the wired mode uses USB interface, USB connection mode uses USB to serial port chip, CH341 or PL2303, RX interface and TX interface of SCM.

The controller 5 is to the control of first linear module 3, realizes through the circuit that the power component of first linear module 3 is the motor, has switch and commutator on the supporting circuit of motor, and switch and commutator use relay control respectively, and the relay has two kinds of modes of connection with controller 5 as follows:

a controller 5-triode (PNP) -relay;

controller 5-optocoupler-triode (NPN) -relay.

The embodiments of the present utility model are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (7)

1. A reinforcing bar residual deformation tester, characterized by comprising:

a detection box (1);

two clamping pieces (2) which are arranged in the detection box (1) and are respectively positioned at two ends of the detection box (1), wherein the clamping pieces (2) are configured to fix a tested object;

the first linear module (3) is arranged on the inner side wall of the detection box (1), and a wide laser ranging sensor (4) is arranged on the first linear module (3);

the controller (5) is arranged on the detection box (1) and is in data communication with the first linear module (3) and the wide-range laser ranging sensor (4), and the controller (5) is configured to drive the wide-range laser ranging sensor (4) to move and send ranging data of the wide-range laser ranging sensor (4) to the upper computer.

2. The steel bar residual deformation tester according to claim 1, wherein the clamping member (2) comprises:

a clamping table (21) arranged in the detection box (1);

the two clamping arms (22) are both in sliding connection with the clamping table (21); and

the driving rod (23) is arranged on the clamping table (21) and is respectively in threaded connection with the two clamping arms (22);

the driving rod (23) is provided with thread sections with opposite rotation directions at two ends, and the two thread sections are respectively in threaded connection with the two clamping arms (22).

3. The steel bar residual deformation tester according to claim 1, wherein the clamping member (2) comprises:

a clamping table (21) arranged in the detection box (1);

a rotating ring (24) which is rotationally connected with the clamping table (21); and

the fixed bolt (25) is arranged on the rotating ring (24), and one end of the fixed bolt (25) extends into the rotating ring (24).

4. A bar residual deformation tester according to claim 2 or 3, characterized in that at least one clamping table (21) is slidingly connected to the detection box (1).

5. The bar residual deformation tester according to claim 2, wherein the working surface of at least one clamping arm (22) is provided with a first elastic layer (31).

6. A bar residual deformation tester according to claim 3, characterized in that the fixing bolt (25) is provided with a clamping plate (26).

7. The bar residual deformation tester according to claim 6, wherein the inner wall of the rotary ring (24) and/or the clamping plate (26) is provided with a second elastic layer (32).