Detection device for tolerance of girder track and rack of bridge girder erection machine

Abstract

The utility model discloses a bridge girder erection machine girder track and rack tolerance detection device which comprises a telescopic cross beam, a plurality of scale marks are correspondingly arranged on the telescopic cross beam, a pair of telescopic vertical beams are assembled at the two ends of the telescopic cross beam through stand column sleeves, and a plurality of scale marks are correspondingly arranged on the pair of telescopic vertical beams. The pair of telescopic vertical beams can slide back and forth on a beam body of the telescopic cross beam, a pair of positioning mechanisms are installed on the two sides of the center line of the telescopic cross beam and slidably connected to the beam body of the telescopic cross beam, the telescopic vertical beams are sequentially provided with a first detection plate and a second detection plate from top to bottom along the beam body, and a third detection plate is arranged at the bottom of each telescopic vertical beam. The bottom end of the center of the telescopic cross beam is connected with fourth detection plates through a sliding body vehicle, and the fourth detection plates are symmetrically installed on the two sides of the sliding body vehicle. The detection device is rapid in installation, practical and convenient, can rapidly and accurately detect the tolerance of the girder track and the rack of the bridge girder erection machine, is telescopic in the whole structure, and can adapt to detection of bridge girder erection machines of different models.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a detection device for the tolerance of a main beam track and a rack of a bridge erecting machine. Background Art

[0002] The bridge erection machine is a common special equipment used in bridge erection projects. It can quickly lift prefabricated beams to the piers. The correct use of the bridge erection machine can effectively ensure construction safety and improve construction efficiency. Usually, the arm of the bridge erection machine is equipped with racks for the transmission of the front and rear trolleys and the middle legs to meet the travel of the front and rear trolleys and the middle legs during the beam erection process. Therefore, in order to ensure that the gears of the trolley and the racks on the bridge erection machine are well engaged and the transmission is smooth, the upper and lower tracks and racks on the ear beams of the arm of the bridge erection machine must ensure the dimensional tolerances required by the design. Since the arm is relatively long, usually about 75 meters in length, it is quite difficult to achieve detection over the entire length to obtain the data of the dimensional tolerance in practice. Utility Model Content

[0003] In order to solve the technical problems mentioned in the background technology, the utility model provides a device for detecting the tolerance of a main beam track and a rack of a bridge erecting machine.

[0004] The utility model adopts the following technical solution: a device for detecting the tolerance of the main beam track and rack of a bridge erecting machine, comprising a telescopic crossbeam;

[0005] A number of scale marks are correspondingly arranged on the telescopic crossbeam;

[0006] The two ends of the telescopic cross beam are assembled with a pair of telescopic vertical beams through column sleeves;

[0007] A plurality of scale marks are correspondingly arranged on the pair of telescopic vertical beams;

[0008] A pair of telescopic vertical beams can slide back and forth on the beam body of the telescopic horizontal beam to adjust the distance between the two;

[0009] A pair of positioning mechanisms are installed on both sides of the center line of the telescopic beam;

[0010] A pair of positioning mechanisms are slidably connected to the beam body of the telescopic beam, and the ends thereof are slidably matched with the top and bottom rails of the main beam of the bridge erecting machine;

[0011] The telescopic vertical beam is provided with a first detection plate for measuring the tolerance of the reinforcement plate on the side of the bridge erecting machine and a second detection plate for measuring the tolerance of the driving rack of the middle leg of the side of the bridge erecting machine in sequence from top to bottom along the beam body;

[0012] A third detection plate for measuring the bottom track tolerance of the bridge erecting machine is provided at the bottom of the telescopic vertical beam;

[0013] The bottom end of the telescopic beam at the center is connected to a fourth detection plate for measuring the tolerance of the bottom rack of the bridge erecting machine through a sliding body vehicle;

[0014] The fourth detection plate is symmetrically installed on both sides of the slide vehicle.

[0015] Furthermore, the positioning mechanism includes a guide wheel adjustment sleeve; the lower end of the guide wheel adjustment sleeve is connected to the correction plate; the guide wheel is installed on the inner side of the lower end of the correction plate; the guide wheel is slidably connected to the top and bottom rails of the main beam of the bridge erection machine.

[0016] Furthermore, the telescopic crossbeam comprises a crossbeam inner tube; two ends of the crossbeam inner tube are slidably connected to the crossbeam outer tube.

[0017] Furthermore, the telescopic vertical beam comprises an inner column; two ends of the inner column are slidably connected to an upper outer column and a lower outer column.

[0018] Compared with the prior art, the advantages of the utility model are:

[0019] The device for detecting the tolerance of the main beam track and rack of the bridge erection machine designed by the utility model has a simple structure, is quick to install, and is practical and convenient. It can quickly and accurately detect the tolerance of the main beam track and rack of the bridge erection machine. Its overall structure is retractable and can adapt to the detection of different models of bridge erection machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the detection device for the tolerance of the main beam rail and rack of the bridge erecting machine of the utility model when detecting the upper end of the main beam;

[0021] Figure 2 The utility model is a schematic diagram of the overall structure of the detection device for the tolerance of the main beam track and rack of the bridge erecting machine when detecting the lower end of the main beam.

[0022] in:

[0023] 1-telescopic beam, 2-column sleeve, 3-telescopic beam, 4-first detection plate, 5-second detection plate, 6-third detection plate, 7-sliding car, 8-fourth detection plate, 9-guide wheel adjustment sleeve, 10-bridge erecting machine main beam, 11-correction plate, 12-guide wheel,

[0024] 1-1-beam inner tube, 1-2-beam outer tube,

[0025] 3-1-inner cylinder, 3-2-outer cylinder. DETAILED DESCRIPTION

[0026] In order to facilitate those skilled in the art to understand the technical solution of the utility model, further description is now made with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model.

[0027] In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, it is apparent that one or more embodiments may be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0028] Please refer to Figure 1-2 , including the overall structural diagram of the detection device for the tolerance of the bridge crane main beam track and rack, the detection device includes a telescopic beam 1, and a plurality of scale marks are correspondingly set on the telescopic beam 1. In specific implementation, the telescopic beam includes a beam inner tube 1-1, and the two ends of the beam inner tube 1-1 are slidably connected to the beam outer tube 1-2, so that the telescopic function is realized as a whole. The two ends of the telescopic beam 1 are assembled with a pair of telescopic vertical beams 3 through the column sleeve 2. The telescopic vertical beam 3 includes an inner column 3-1; the two ends of the inner column 3-1 are slidably connected to the outer column 3-2, so that the telescopic function is realized as a whole. A plurality of scale marks are correspondingly set on the pair of telescopic vertical beams 3. The pair of telescopic vertical beams 3 can slide back and forth on the beam body of the telescopic beam 1 to adjust the distance between the two. When adjusting specifically, the distance size is determined by comparing the scale marks. A pair of positioning mechanisms are installed on both sides of the center line of the telescopic beam 1. The pair of positioning mechanisms are slidably connected to the beam body of the telescopic beam 1, and their ends are rollingly matched with the top and bottom tracks of the bridge-building machine main beam 10. In specific implementation, the positioning mechanism includes a guide wheel adjustment sleeve 9, and the lower end of the guide wheel adjustment sleeve 9 is connected to the correction plate 11, and a guide wheel 12 is installed on the inner side of the lower end of the correction plate 11. The guide wheel 12 is rollingly connected to the top and bottom tracks of the bridge-building machine main beam 10.

[0029] In this embodiment, a first detection plate 4 for measuring the tolerance of the side reinforcement plate of the bridge-building machine main beam 10 and a second detection plate 5 for measuring the tolerance of the leg driving rack on the side of the bridge-building machine main beam 10 are sequentially arranged along the telescopic vertical beam 3 from top to bottom. A third detection plate 6 for measuring the tolerance of the bottom track of the bridge-building machine main beam 10 is arranged at the bottom of the telescopic vertical beam 3, and a fourth detection plate 8 for measuring the tolerance of the bottom rack of the bridge-building machine main beam 10 is connected to the bottom end at the center of the telescopic horizontal beam 1 through a detachable sliding body car 7, and the fourth detection plate 8 is symmetrically installed on both sides of the sliding body car 7. The above-mentioned first detection plate, second detection plate, third detection plate, and fourth detection plate can be a ruler with scale marks, or a distance sensor with a measuring function, without limitation.

[0030] like Figure 1As shown, when inspecting the upper end of the main beam, since there is no rack on the top of the main beam, the slide car 7 and the fourth inspection plate 8 can be removed. By adjusting the guide wheel adjustment sleeve 9 and the crossbeam outer cylinder 1-2, the guide wheel 12 is allowed to run on the top track, and the deviation correction plate 11 can ensure that the device will not deviate during the running process. After the crossbeam is adjusted, adjust the column sleeve 2, the inner column 3-1, the outer column 3-2, the second inspection plate 5, and the third inspection plate 6 to ensure that the reference planes C and D in the figure are parallel to the rack and track at the corresponding position, and the lower end surface of the second inspection plate 5 is on the same horizontal plane as the center line of the rack. Determine the spacing between the C reference planes of the two second inspection plates 5 and the spacing between the guide wheel 12 and the D reference plane of the third inspection plate 6. Measure the distance between the adjacent surfaces of the rack and the second inspection plate 5 with reference plane C as the reference, and measure the distance between the adjacent surfaces of the track and the third inspection plate 6 with reference plane D as the reference. Calculate the spacing manually or by computer to see if the tolerance of the designed rack meets the requirements of the drawing.

[0031] like Figure 2 As shown, when inspecting the lower end of the main beam, by adjusting the guide wheel adjustment sleeve 9 and the crossbeam outer tube 1-2, the guide wheel 12 is allowed to run on the top track, and the deviation correction plate 11 can ensure that the device will not deviate during the running process. The fourth inspection plate 8 on both sides of the slide car 7 is installed at the center of the main beam, and the reference plane A in the figure is parallel to the side of the bottom rack. After the crossbeam is adjusted, adjust the column sleeve 2, the inner column 3-1, the outer column 3-2, the second inspection plate 5, and the third inspection plate 6 to ensure that the reference planes B and D are parallel to the reinforcement plate and the track, and the lower end surface of the first inspection plate 4 is on the same horizontal plane as the center line of the reinforcement plate, and determine the spacing between the B reference planes of the two first inspection plates 4 and the spacing between the guide wheel 12 and the D reference plane of the third inspection plate 6. Take reference plane A as reference to measure the distance between reference plane A and the center line of the rack, take reference plane B as reference to measure the distance between the adjacent surface of the reinforcement plate and the first inspection plate 4, take reference plane D as reference to measure the distance between the adjacent surface of the track and the third inspection plate 6, and calculate manually or by computer whether the distance and the designed rack tolerance meet the requirements of the drawing.

[0032] To sum up, the device for detecting the tolerances of the main beam rail and rack of the bridge-building machine designed by the utility model has a simple structure, is quick to install, and is practical and convenient. It can quickly and accurately detect the tolerances of the main beam rail and rack of the bridge-building machine, and its overall structure is retractable and can adapt to the detection of different models of bridge-building machines.

[0033] The above embodiments are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for detecting the tolerance of the main beam track and rack of a bridge erection machine, characterized in that: It comprises a telescopic beam (1); A plurality of scale marks are correspondingly arranged on the telescopic crossbeam (1); The two ends of the telescopic cross beam (1) are assembled with a pair of telescopic vertical beams (3) through column sleeves (2); A plurality of scale marks are correspondingly arranged on the pair of telescopic vertical beams (3); The pair of telescopic vertical beams (3) can slide back and forth on the beam body of the telescopic horizontal beam (1) to adjust the distance between the two; A pair of positioning mechanisms are installed on both sides of the center line of the telescopic crossbeam (1); A pair of positioning mechanisms are slidably connected to the beam body of the telescopic cross beam (1), and the ends thereof are rollingly matched with the top and bottom rails of the main beam (10) of the bridge erection machine; The telescopic vertical beam (3) is provided with a first detection plate (4) for measuring the tolerance of the side reinforcement plate of the bridge-building machine main beam (10) and a second detection plate (5) for measuring the tolerance of the driving rack of the outriggers on the side of the bridge-building machine main beam (10) in sequence from top to bottom along the beam body; A third detection plate (6) for measuring the bottom track tolerance of the main beam (10) of the bridge erecting machine is arranged at the bottom of the telescopic vertical beam (3); The bottom end of the telescopic cross beam (1) at the center is connected to a fourth detection plate (8) for measuring the tolerance of the bottom rack of the main beam (10) of the bridge erecting machine through a sliding vehicle (7); The fourth detection plate (8) is symmetrically mounted on both sides of the slide vehicle (7).

2. The device for detecting the tolerance of the main beam rail and rack of the bridge erection machine according to claim 1 is characterized in that: The positioning mechanism comprises a guide wheel adjustment sleeve (9); the lower end of the guide wheel adjustment sleeve (9) is connected to a deviation correction plate (11); a guide wheel (12) is installed on the inner side of the lower end of the deviation correction plate (11); the guide wheel (12) is rollingly connected to the top and bottom rails of the main beam (10) of the bridge erection machine.

3. The device for detecting the tolerance of the main beam rail and rack of the bridge erection machine according to claim 2 is characterized in that: The telescopic crossbeam comprises a crossbeam inner tube (1-1); two ends of the crossbeam inner tube (1-1) are slidably connected to a crossbeam outer tube (1-2).

4. The device for detecting the tolerance of the main beam rail and rack of the bridge erection machine according to claim 3 is characterized in that: The telescopic vertical beam (3) comprises an inner column (3-1); two ends of the inner column (3-1) are slidably connected to an outer column (3-2).

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