Bridge girder erection machine beam slab positioning self-recognition system

Abstract

The utility model discloses a bridge girder erection machine beam plate positioning self-recognition system which comprises a first laser sensor, a second laser sensor, a bridge girder erection machine front supporting leg track reflecting plate, a bridge girder erection machine middle supporting leg track reflecting plate, a first pull rope encoder, a second pull rope encoder, a third laser sensor and a fourth laser sensor. A first trolley supporting leg reflecting plate, a second trolley supporting leg reflecting plate and a fifth laser sensor; the position of the beam plate hoisting trolley relative to the bridge girder erection machine is determined by installing the sensor on the bridge girder erection machine, the position of the bridge girder erection machine is determined by measuring the position of the sensor on the bridge girder erection machine relative to the erected beam plate, and therefore the beam plate position is automatically recognized and positioned. The problems that the beam plate hoisting position is not fixed, the absolute position of the beam plate cannot be determined and the like are solved, theoretical support is provided for automatic and accurate positioning of the beam plate of the bridge girder erection machine, and the beam plate installation efficiency and safety are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of self-identification of girder and slab positioning of a bridge erecting machine, and particularly relates to a self-identification system for girder and slab positioning of a bridge erecting machine. Background Art

[0002] Prefabricated girders and slabs are widely used in small and medium standard span bridges due to their advantages such as simple structure, convenient construction, and controllable quality. At present, girders and slabs are usually erected by a bridge erecting machine, and the positioning of girders and slabs is carried out manually. This method still has many problems:

[0003] (1) The position accuracy determined by the installer's observation is low, resulting in a large error in the beam spacing, which affects the construction of wet joints and diaphragms and is unfavorable to the structural force.

[0004] (2) The installers of girders and slabs are located on the pier cap, with limited working space, long high-altitude operation time, and high safety risks.

[0005] (3) Since the hoisting distance of the girder and slab from the end position cannot be fixed, the relative position of the girder and slab relative to the bridge erecting machine cannot be determined.

[0006] (4) Only installing longitudinal and transverse bridge sensors on the bridge erecting machine can only determine the position of the hoisting trolley relative to the bridge erecting machine, and the absolute position of the girder and slab erection cannot be determined. Content of the Utility Model

[0007] Therefore, in order to solve the above deficiencies, the utility model provides a self-identification system and method for girder and slab positioning of a bridge erecting machine here. This system can realize the automatic identification of the dynamic position during the installation of girders and slabs of the bridge erecting machine, and solve the problems such as poor accuracy determined by humans during the erection of girders and slabs of the bridge erecting machine and high safety risks for workers in high-altitude operations. This patent determines the position of the hoisting trolley of the girder and slab relative to the bridge erecting machine by installing sensors on the bridge erecting machine, and determines the position of the bridge erecting machine by measuring the position of the sensors on the bridge erecting machine relative to the already erected girders and slabs, thereby automatically identifying and positioning the position of the girders and slabs. It solves the problems such as the unfixed hoisting position of the girders and slabs and the inability to determine the absolute position of the girders and slabs, provides a theoretical support for the automatic and accurate positioning of the girders and slabs of the bridge erecting machine, and greatly improves the installation efficiency and safety of the girders and slabs.

[0008] The utility model is realized as follows. A self-identification system for girder and slab positioning of a bridge erecting machine is constructed, characterized in that; the system includes:

[0009] A first laser sensor (1), and the first laser sensor (1) is installed on the front outrigger wheel box of the bridge erecting machine;

[0010] A second laser sensor (2), and the second laser sensor (2) is installed on the middle outrigger wheel box of the bridge erecting machine;

[0011] A bridge erecting machine front outrigger track reflector (3), which is installed at the end of the front outrigger track of the bridge erecting machine;

[0012] The center leg track reflector (4) of the bridge erecting machine is installed at the end of the center leg track of the bridge erecting machine;

[0013] The first wire rope encoder (5) is installed on the corresponding front trolley of the bridge erecting machine;

[0014] The second wire rope encoder (6) is installed on the corresponding rear trolley of the bridge erecting machine;

[0015] The third laser sensor (7) is installed at the front end of the longitudinal beam of the bridge erecting machine;

[0016] The fourth laser sensor (8) is installed at the rear end of the longitudinal beam of the bridge erecting machine;

[0017] The first trolley leg reflector (9) is installed on the corresponding front trolley leg of the bridge erecting machine;

[0018] The second trolley leg reflector (10) is installed on the corresponding rear trolley leg of the bridge erecting machine;

[0019] The fifth laser sensor (11) is installed on the corresponding center leg wheel box of the bridge erecting machine.

[0020] The utility model has the following advantages: This system can realize the automatic recognition of the dynamic position during the installation of the beam and slab of the bridge erecting machine, and solve the problems of poor accuracy in determining the position of the beam and slab of the bridge erecting machine by manual means and high safety risks for workers working at heights. This patent determines the position of the beam and slab hoisting trolley relative to the bridge erecting machine by installing sensors on the bridge erecting machine, and determines the position of the bridge erecting machine by measuring the position of the sensors on the bridge erecting machine relative to the already erected beam and slab, thereby automatically identifying and positioning the position of the beam and slab. It solves the problems of the unfixed position of the beam and slab hoisting and the inability to determine the absolute position of the beam and slab, provides a theoretical support for the automatic and accurate positioning of the beam and slab of the bridge erecting machine, and greatly improves the installation efficiency and safety of the beam and slab.

[0021] This patent has the following advantages and beneficial effects: (1) This system measures the installation distance of the beam and slab through sensors, with high data installation accuracy, realizes the self-recognition of the erection position of the beam and slab, and improves the installation quality of the beam and slab. (2) By remotely determining the installation position of the beam and slab, it reduces the high-altitude operation of personnel, ensures the construction safety of workers, improves the installation efficiency of the beam and slab of the bridge erecting machine, and reduces the number of personnel while increasing efficiency. (3) By adding upward-scanning laser sensors and track reflectors, it determines the absolute positions of the erected beam and slab and the already erected beam and slab, and solves the problems of the uncertain positions of each span of the bridge erecting machine and the beam and slab hoisting position. Description of the Drawings

[0022] Figure 1 It is a sectional view of the self-recognition system for the positioning of the beam and slab of the bridge erecting machine;

[0023] Figure 2 It is the elevation view of the self-identification system for the girder and slab positioning of the bridge girder erecting machine;

[0024] Figure 3 It is the schematic diagram of the self-identification system for the girder and slab positioning of the bridge girder erecting machine.

[0025] Among them: the first laser sensor 1, the second laser sensor 2, the front leg track reflector 3 of the bridge girder erecting machine, the middle leg track reflector 4 of the bridge girder erecting machine, the first wire rope encoder 5, the second wire rope encoder 6, the third laser sensor 7, the fourth laser sensor 8, the first trolley leg reflector 9, the second trolley leg reflector 10,

[0026] The fifth laser sensor 11. Specific implementation mode

[0027] Next, the present utility model will be described in detail in conjunction with the attached Figures 1-3 The technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0028] The present utility model provides a self-identification system for the girder and slab positioning of a bridge girder erecting machine herein. As Figures 1-3 shown, it can be implemented in the following manner; the implementation structure of this patent involves: a bridge girder erecting machine, a reflector, a laser sensor, and a wire rope encoder; this system specifically includes:

[0029] The first laser sensor 1: The first laser sensor 1 is installed on the front leg wheel box and is used to measure the distance X1 between the front leg wheel box and the front leg track reflector.

[0030] The second laser sensor 2: The second laser sensor 2 is installed on the middle leg wheel box and is used to measure the distance X2 between the middle leg wheel box and the front leg track reflector.

[0031] The front leg track reflector 3 of the bridge girder erecting machine: It is installed at the end of the front leg track and serves as the reflection device of the first laser sensor 1 to determine the distance X1 between the front leg wheel box and the front leg track reflector.

[0032] The middle leg track reflector 4 of the bridge girder erecting machine: It is installed at the end of the middle leg track and serves as the reflection device of the second laser sensor 2 to determine the distance X2 between the middle leg wheel box and the front leg track reflector.

[0033] The first wire rope encoder 5: The first wire rope encoder 5 is installed on the front trolley to determine the transverse distance X3 between the front trolley and the longitudinal beam.

[0034] Second draw-wire encoder 6: Install the second draw-wire encoder 6 on the rear trolley to determine the lateral distance X4 between the rear trolley and the longitudinal beam.

[0035] Third laser sensor 7: Install the third laser sensor 7 at the front end of the longitudinal beam of the bridge erecting machine to measure the distance Y1 between the front trolley and the end.

[0036] Fourth laser sensor 8: Install the fourth laser sensor 8 at the rear end of the longitudinal beam of the bridge erecting machine to measure the distance Y2 between the rear trolley and the end.

[0037] First trolley leg reflector 9: Installed on the front trolley leg, serving as the reflection device for the third laser sensor 7 to determine the distance Y1 between the front trolley and the end of the longitudinal beam.

[0038] Second trolley leg reflector 10: Installed on the rear trolley leg, serving as the reflection device for the fourth laser sensor 8 to determine the distance Y2 between the rear trolley and the end of the longitudinal beam.

[0039] Fifth laser sensor 11: Install an upward-scanning fifth laser sensor 11 on the middle leg gearbox to scan the height of the erected beam from above at irregular intervals. When the beam passes through the laser sensor, record Y1 and Y2. When the beam leaves the laser sensor, record Y1' and Y2' again to determine the longitudinal movement distance of the beam erection.

[0040] When this system is implemented specifically;

[0041] First laser sensor 1: Install a laser sensor on the front leg gearbox to measure the distance X1 between the front leg gearbox and the front leg track reflector.

[0042] Second laser sensor 2: Install a laser sensor on the middle leg gearbox to measure the distance X2 between the middle leg gearbox and the front leg track reflector.

[0043] Bridge erecting machine front leg track reflector 3: Installed at the end of the front leg track, serving as the reflection device for the laser sensor 1 to determine the distance X1 between the front leg gearbox and the front leg track reflector.

[0044] Bridge erecting machine middle leg track reflector 4: Installed at the end of the middle leg track, serving as the reflection device for the laser sensor 2 to determine the distance X2 between the middle leg gearbox and the front leg track reflector.

[0045] First draw-wire encoder 5: Install the first draw-wire encoder 5 on the front trolley to determine the lateral distance X3 between the front trolley and the longitudinal beam.

[0046] Second draw-wire encoder 6: Install the second draw-wire encoder 6 on the rear trolley to determine the lateral distance X4 between the rear trolley and the longitudinal beam.

[0047] Third laser sensor 7: Install a laser sensor at the front end of the longitudinal beam of the bridge erecting machine to measure the distance Y1 between the front trolley and the end.

[0048] Fourth laser sensor 8: Install a laser sensor at the rear end of the longitudinal beam of the bridge erecting machine to measure the distance Y2 between the rear trolley and the end.

[0049] First trolley leg reflector 9: Installed on the front trolley leg, serving as a reflection device for the laser sensor 3 to determine the distance Y1 between the front trolley and the end of the longitudinal beam.

[0050] Second trolley leg reflector 10: Installed on the rear trolley leg, serving as a reflection device for the laser sensor 4 to determine the distance Y2 between the rear trolley and the end of the longitudinal beam.

[0051] Fifth laser sensor 11: Install an upward-scanning laser sensor on the middle support leg gearbox to scan the height of the erected beam slab from above at irregular intervals. When the beam slab passes through the laser sensor, record Y1 and Y2. When the beam slab leaves the laser sensor, record Y1' and Y2' again, so as to determine the longitudinal movement distance of the beam slab erection.

[0052] It should be noted that: The outputs of the sensors and encoders involved in this system are respectively connected to the corresponding monitoring host, that is, the data detected by the sensors and encoders will be transmitted and collected on the monitoring system;

[0053] In the main interface of the monitoring system, the running positions of the whole vehicle, trolley and overhead crane are displayed in the square box, and the in-place point range is also displayed. During use, the current beam hanging state will be displayed. When the system judges that the longitudinal movement or transverse movement is approaching the in-place state, the screen will display the distance to the in-place. When the longitudinal movement is in place, the alarm light will sound for 2s. When the transverse movement or both longitudinal and transverse movements are in place, the alarm light will sound for 5s to prompt the on-site personnel that the beam slab is in place.

[0054] This patent has the following advantages and beneficial effects: (1) This system measures the installation distance of the beam slab through sensors, with high data installation accuracy, realizes self-identification of the beam slab erection position, and improves the installation quality of the beam slab. (2) By remotely determining the beam slab installation position, it reduces high-altitude operations of personnel, ensures the construction safety of workers, improves the beam slab installation efficiency of the bridge erecting machine, and reduces the number of personnel and increases efficiency. (3) By adding an upward-scanning laser sensor and track reflectors, the absolute positions of the erected beam slab and the already erected beam slabs are determined, solving problems such as the uncertainty of the position of each span of the bridge erecting machine and the beam slab hoisting position.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bridge erection machine beam and slab positioning self-identification system, characterized in that; The system includes: A first laser sensor (1), the first laser sensor (1) being mounted on a front outrigger wheel box of the bridge erecting machine; A second laser sensor (2), the second laser sensor (2) being mounted on a wheel box of a leg in the bridge erecting machine; A bridge erecting machine front outrigger track reflector (3), mounted on the end of the bridge erecting machine front outrigger track; A reflector plate (4) for the outrigger track of the bridge erecting machine is installed at the end of the outrigger track of the bridge erecting machine; A first pull-rope encoder (5), the first pull-rope encoder (5) being mounted on a front trolley corresponding to the bridge erecting machine; A second pull-rope encoder (6), the second pull-rope encoder (6) being mounted on a rear trolley corresponding to the bridge erecting machine; A third laser sensor (7), the third laser sensor (7) being mounted at the front end of the longitudinal beam of the bridge erecting machine; A fourth laser sensor (8), the fourth laser sensor (8) being mounted at the rear end of the longitudinal beam of the bridge erecting machine; The first trolley leg reflector (9) is mounted on the front trolley leg corresponding to the bridge erecting machine; The second trolley leg reflector (10) is mounted on the rear trolley leg corresponding to the bridge erecting machine; The fifth laser sensor (11) is mounted on the middle outrigger wheel box corresponding to the bridge erecting machine.

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