Automatic leveling system for bridge machine transverse moving track

Abstract

The application discloses a bridge erecting machine transverse track automatic leveling system and belongs to the technical field of bridge erecting machines. The bridge erecting machine transverse track automatic leveling system comprises a control device, a measuring sensor, a supporting leg and a horizontal moving mechanism arranged on the transverse track. The supporting leg is movably arranged on the transverse track through the horizontal moving mechanism. The application can solve the problem that it is difficult to adjust the position of the supporting leg according to different sizes of bent caps and stop blocks when laying the transverse track, which is not conducive to subsequent leveling of the transverse track.

Description

Technical Field

[0001] This invention belongs to the field of bridge erecting machine technology, specifically relating to an automatic leveling system for the transverse track of a bridge erecting machine. Background Technology

[0002] Bridge erecting machines are commonly used when erecting box girders. Transverse tracks are laid on the cap beams to allow the machines to move transversely along the bridge. For cap beams with sloping top faces at curves, to ensure the transverse tracks remain level and prevent the machine from tipping over, wooden or iron sleepers are typically used to support the lower part of the transverse tracks during erection. The level is then adjusted manually by visually inspecting a spirit level on the tracks and adjusting the number and thickness of the sleepers.

[0003] During actual use, the inventors discovered that these prior art technologies have at least the following technical problems:

[0004] The automatic leveling device for the transverse track of the bridge erecting machine, patent number CN217710331U, adjusts the hydraulic outriggers through a control device to level the transverse track. However, the outriggers are fixed with bolts, and the position of the outriggers is difficult to adjust for different cap beams and blocks. It is necessary to unscrew the bolts, move the outriggers to the corresponding positions, and then fix the outriggers, which is cumbersome and time-consuming. Summary of the Invention

[0005] To overcome the aforementioned shortcomings, the inventors of this invention, through long-term exploration, experimentation, and continuous reform and innovation, have proposed an automatic leveling system for the transverse track of a bridge erecting machine. This system can solve the problem of difficulty in adjusting the position of the outriggers according to different cap beam and stop block sizes when laying transverse tracks.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an automatic leveling system for the transverse track of a bridge erecting machine, which includes a control device, a measuring sensor, support legs, and a horizontal moving mechanism disposed on the transverse track. The support legs are movably disposed on the transverse track through the horizontal moving mechanism.

[0007] A further preferred embodiment of the automatic leveling system for the transverse track of the bridge erecting machine according to the present invention is as follows: the horizontal moving mechanism includes a movable support and a slide rail disposed on the transverse track. The support leg is fixedly connected to the movable support. When the support leg is in a fixed state, the movable support is fixedly connected to the slide rail. When the support leg is in a moving state, the movable support is slidably connected to the slide rail.

[0008] A further preferred embodiment of the automatic leveling system for the transverse track of the bridge erecting machine according to the present invention is as follows: the horizontal moving mechanism further includes a rack and a crank handle. The rack is disposed on the transverse track and is parallel to the slide rail. The crank handle is rotatably disposed on the movable support, and one end of the crank handle passes through the movable support and meshes with the rack.

[0009] A further preferred embodiment of the automatic leveling system for the transverse track of the bridge erecting machine according to the present invention is as follows: the movable support includes: a connecting plate disposed beside the transverse track; a mounting plate disposed at the bottom of the connecting plate for mounting the support legs; and a guide plate fixedly disposed on the connecting plate, wherein the guide plate is provided with a groove matching the slide rail.

[0010] A further preferred technical solution of the automatic leveling system for the transverse track of the bridge erecting machine according to the present invention is: bolt holes are provided on the connecting plate and the side wall of the slide rail, and when the outrigger is in a fixed state, the connecting plate is bolted to the slide rail.

[0011] A further preferred embodiment of the automatic leveling system for the transverse track of the bridge erecting machine according to the present invention is that the outriggers are evenly distributed on both sides of the transverse track.

[0012] A further preferred embodiment of the automatic leveling system for the transverse track of the bridge erecting machine according to the present invention is: it further includes a display screen, wherein the display screen, the outriggers, and the measuring sensors are all connected to a control device, and the control device is used to receive data from the measuring sensors, adjust the length of the outriggers according to the received data, and transmit the received data to the display screen for display.

[0013] A further preferred embodiment of the automatic leveling system for the transverse track of a bridge erecting machine according to the present invention is as follows: the measuring sensors include load sensors and tilt sensors; the load sensors are disposed under the outriggers to measure the load of each outrigger and transmit the load to the control device; the tilt sensors are disposed at both ends of the transverse track to measure the tilt angle of the transverse track and transmit the tilt angle to the control device; the display screen shows the tilt angle of the transverse track, the supporting force of each outrigger, and the total supporting force.

[0014] A further preferred technical solution of the automatic leveling system for the transverse track of the bridge erecting machine according to the present invention is as follows: the outrigger is an electric screw jack, and a ball joint grounding structure is provided at the bottom of the outrigger. The ball joint grounding structure includes a universal ball head and a chassis. One end of the universal ball head is fixed to the outrigger, and the other end is ball jointed to the chassis. The load sensor is located under the chassis.

[0015] A further preferred embodiment of the automatic leveling system for the transverse track of the bridge erecting machine according to the present invention is that a heightening section and a pad are fixedly installed below the load sensor.

[0016] Compared with the prior art, the technical solution of the present invention has the following advantages / benefits:

[0017] This invention features a horizontal moving mechanism on the transverse track. The outriggers are connected to the transverse track via this mechanism, allowing them to move and adjust their positions. When applicable to different cap beams and blocks, the position of a single outrigger can be directly adjusted via the moving mechanism. This invention is suitable for cap beams and blocks of various sizes, offering simple operation, high efficiency, and ensuring the stability of the transverse track, which is beneficial for subsequent leveling. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the automatic leveling system for the transverse track of the bridge erecting machine of the present invention.

[0020] Figure 2 yes Figure 1 An enlarged structural diagram of part A.

[0021] Figure 3 This is a schematic diagram of the structure of the support leg of the present invention when it is in a fixed state.

[0022] Figure 4 This is a schematic diagram of the structure of the support leg of the present invention in a moving state.

[0023] Figure 5 This is a connection diagram of the automatic leveling system for the transverse track of the bridge erecting machine of the present invention.

[0024] The markings in the diagram are as follows: 1. Horizontal track, 2. Support leg, 3. Horizontal movement mechanism, 4. Display screen, 5. Measuring sensor, 6. Ball joint grounding structure, 7. Heightening section, 8. Pad, 9. Control device; 31. Moving bracket, 32. Slide rail, 33. Rack, 34. Handle; 311. Connecting plate, 312. Mounting plate, 313. Guide plate, 314. Bolt hole; 51. Load sensor, 52. Tilt sensor; 61. Universal ball joint, 62. Chassis. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. Therefore, the detailed description of the embodiments of this invention provided below is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0027] Example:

[0028] like Figures 1 to 5 As shown, the automatic leveling system for the transverse track of a bridge erecting machine includes: a transverse track 1, support legs 2, a horizontal movement mechanism 3, a display screen 4, measuring sensors 5, and a control device 9. The support legs 2 are evenly distributed on both sides of the transverse track 1. The display screen 4, measuring sensors 5, and support legs 2 are all connected to the control device 9. The measuring sensors 5 transmit the monitored data to the control device 9 as the basis for adjusting the support legs 2. The display screen 4 is used to display the measured data.

[0029] like Figure 1 As shown, the support leg 2 moves on the transverse track 1 via a horizontal moving mechanism 3. Specifically, the horizontal moving mechanism 3 includes: a moving bracket 31, a slide rail 32, a rack 33, and a crank 34. The support leg 2 is vertically mounted on the moving bracket 31, which is located on both sides of the transverse track 1. The moving bracket 31 includes: a connecting plate 311, a mounting plate 312, and a guide plate 313. The mounting plate 312 is horizontally positioned for mounting the support leg 2. The connecting plate 311 and the mounting plate 312 are vertically fixed, forming an L-shaped cross-section. One end of the guide plate 313 is fixedly connected to the connecting plate 311, and the other end extends towards the slide rail 32. A groove matching the slide rail 32 is provided on the side near the slide rail 32, allowing the moving bracket 31 to slide on the slide rail 32. The groove can be a dovetail groove.

[0030] In this embodiment, the slide rail 32 is a square plate, the top of which matches the groove to allow the movable support 31 to slide. Multiple bolt holes 314 are provided on the side wall of the square plate, and bolt holes 314 are also provided on the connecting plate 311. After the movable support 31 is adjusted to the corresponding position, it can be bolted to the slide rail 32. That is, the movable support 31 has two states:

[0031] like Figure 3 As shown, when the support leg 2 is in a fixed state, i.e., when the support leg 2 does not need to be moved, the movable bracket 31 is bolted to the slide rail 32. At this time, the groove is located above the slide rail 32 and is at a certain distance from the slide rail 32, not in direct contact with the slide rail 32. When the support leg 2 is in a moving state, the movable bracket 31 moves down, and the groove engages with the slide rail 32, allowing the movable bracket 31 to move along the slide rail 32.

[0032] like Figure 4 As shown, the rack 33 is also mounted on the side wall of the transverse track 1 and located below the slide rail 32. The crank 34 is a hand crank with an opening in the connecting plate 311. One end of the crank 34 passes through the opening in the connecting plate 311 and extends to the rack 33. A gear that meshes with the rack 33 is provided at the end of the crank 34 near the rack 33. Rotating the crank 34 allows the movable support 31 to move. By setting the crank 34 and the rack 33, it is convenient to operate the movement of the support leg 2. It should be noted that when the support leg 2 is in a fixed state, the crank 34 is located above the rack 33 and does not mesh with the rack 33. When the support leg 2 is in a moving state, the movable support 31 moves down, and the crank 34 moves down accordingly to mesh with the rack 33.

[0033] In this embodiment, the support legs 2 are electric screw jacks, which can also be hydraulic structures. The support legs 2 are evenly distributed and staggered on both sides of the transverse track 1 to support the transverse track 1. By controlling the extension and retraction length of each support leg 2, the transverse track 1 is kept horizontal. It should be noted that three, four or more support legs 2 can be provided on the transverse track 1, and those skilled in the art can increase or decrease the number of support legs 2 according to construction needs.

[0034] like Figure 2 As shown, a ball joint grounding structure 6 is provided under the outrigger 2. The ball joint grounding structure 6 includes a universal ball joint 61 and a chassis 62. One end of the universal ball joint 61 is fixedly connected to the bottom of the outrigger 2, and the other end of the universal ball joint 61 is ball jointed with the chassis 62. The chassis 62 can achieve 360° movable hinge connection, can automatically level the ground, so that the ball joint grounding structure 6 always maintains reliable contact with the cap beam, and can adapt to slopes of different inclinations.

[0035] The load sensor 51 is located below the ball joint grounding structure 6 to monitor the load borne by each leg 2. To increase the height of the leg 2, a heightening section 7 and a pad 8 are provided below the load sensor 51. The pad 8 can increase the contact area with the cap beam and protect the cap beam.

[0036] To monitor whether the transverse track 1 is horizontal and to provide a basis for the extension and retraction control of the outriggers 2, this embodiment has at least two tilt sensors 52 on the outriggers 2 located at both ends of the transverse track 1. The tilt sensors 52 measure the angle between the transverse track section 1 and the horizontal plane and send the measurement data to the control device 9. In this embodiment, the device for measuring the tilt angle is not limited to the tilt sensor 52; other devices capable of measuring the tilt angle or indicating whether the transverse track 1 is horizontal can also be used. Two tilt sensors 52 are installed at both ends of the transverse track 1. When the transverse track 1 is horizontal, the two tilt sensors 52 are set to zero. When the transverse track 1 rests on the inclined surface at the top of the pier, the two tilt sensors 52 monitor the tilt angle at both ends of the transverse track 1 in real time. The control device 9 acquires the tilt angle data. The operator sets the support leg 2 located at the high point of the inclined surface as the reference through the control device 9, and it does not extend or retract. Then, according to the tilt angle data, the control device 9 controls the other support leg 2 to extend, that is, controls the support leg 2 located at the low point of the inclined surface to extend, so that the section of the transverse track 1 is gradually adjusted to be horizontal. When the real-time monitoring data of the tilt sensor 52 shows that the tilt angle is zero, the control device 9 controls the support leg 2 to stop moving, thus completing the leveling of the transverse track 1.

[0037] It should be noted that when adjusting the support leg 2, the control device 9 sends the internal lead screw movement stroke of the support leg 2 to the control device 9 in real time to prevent the support leg 2 from disengaging. In this embodiment, the extension length of the support leg 2 is controlled according to the detection data of the tilt sensor 52 to achieve leveling of the transverse track 1, keeping the transverse track 1 horizontal and improving the leveling accuracy.

[0038] The load sensor 51 can detect and display the stress state of the outrigger 2. The control device 9 or those skilled in the art can determine whether the transverse track 1 is under load or unevenly loaded based on the data from the load sensor 51. Regarding the number of outriggers 2 and their supporting force, those skilled in the art can rationally select and evenly distribute them based on the strength design of the track beam and the total load.

[0039] The control device 9 can be a computer device with a processor or other components, such as a microcontroller, industrial control computer or computer, or other devices that can be used for signal processing, calculation and control.

[0040] When in use, the transverse track 1 is laid out. At this time, the support leg 2 is in a fixed state. When an obstacle is encountered below the support leg 2, the corresponding bolt is unscrewed. Under the action of gravity, the corresponding moving bracket 31 moves down, so that the groove hangs on the slide rail 32. Adjusting the moving bracket 31 can avoid the obstacle.

[0041] After the transverse track 1 is laid, the control device 9 adjusts the extension and retraction of the outriggers 2 according to the measurement data of the tilt sensor 52, and the display screen 4 can display the tilt data and the load data of each outrigger 2.

[0042] This invention allows for easy adjustment of the position of each support leg 2 on the transverse track, and can adapt to various main lines, ramps, widening sections and other different cap beam structures, as well as various transverse and longitudinal slope curves and uneven pad stones.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be considered as limitations on the present invention, and the scope of protection of the present invention should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic leveling system for the transverse track of a bridge erecting machine, comprising a control device, measuring sensors, and support legs, characterized in that, It also includes a horizontal moving mechanism set on the transverse moving track, wherein the outrigger is movably set on the transverse moving track via the horizontal moving mechanism; The horizontal moving mechanism includes: a movable support and a slide rail disposed on the transverse track. The support leg is fixedly connected to the movable support. When the support leg is in a fixed state, the movable support is fixedly connected to the slide rail. When the support leg is in a moving state, the movable support is slidably connected to the slide rail. The horizontal moving mechanism further includes a rack and a crank handle. The rack is arranged on the horizontal moving track and parallel to the slide rail. The crank handle is rotatably arranged on the moving bracket, and one end of the crank handle passes through the moving bracket and meshes with the rack. The movable support includes: a connecting plate disposed beside the transverse track; a mounting plate disposed at the bottom of the connecting plate for mounting the support legs; and a guide plate fixedly disposed on the connecting plate, wherein the guide plate is provided with a groove that matches the slide rail. Bolt holes are provided on the connecting plate and the side wall of the slide rail. When the outrigger is in a fixed state, the connecting plate is bolted to the slide rail. The crank is located above the rack and does not mesh with the rack. When the outrigger is in a moving state, the moving bracket moves down and the crank moves down with it to mesh with the rack, so that the groove hangs on the slide rail. The outriggers are evenly distributed on both sides of the transverse track.

2. The automatic leveling system for the transverse track of the bridge erecting machine according to claim 1, characterized in that, It also includes a display screen. The display screen, the support legs, and the measuring sensors are all connected to a control device. The control device is used to receive data from the measuring sensors, adjust the length of the support legs according to the received data, and transmit the received data to the display screen for display.

3. The automatic leveling system for the transverse track of the bridge erecting machine according to claim 2, characterized in that, The measuring sensors include a load sensor and a tilt sensor. The load sensor is installed under the outriggers to measure the load on each outrigger and transmit the data to the control device. The tilt sensor is installed at both ends of the transverse track to measure the tilt angle of the transverse track and transmit the data to the control device. The display screen shows the tilt angle of the transverse track, the supporting force of each outrigger, and the total supporting force.

4. The automatic leveling system for the transverse track of the bridge erecting machine according to claim 3, characterized in that, The outrigger is an electric screw jack, and a ball joint grounding structure is provided at the bottom of the outrigger. The ball joint grounding structure includes a universal ball joint and a chassis. One end of the universal ball joint is fixed to the outrigger, and the other end is ball jointed to the chassis. The load sensor is located under the chassis.

5. The automatic leveling system for the transverse track of the bridge erecting machine according to claim 4, characterized in that, An extension section and a pad are fixedly installed below the load sensor.

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