Liftable cover plate system for gantry type large crane track groove

Abstract

The utility model relates to the technical field of crane track grooves, in particular to a liftable cover plate system for a gantry type large crane track groove, which comprises a U-shaped foundation for mounting a cover plate, mounting grooves are formed in the inner sides of the front end and the rear end of the foundation, lifting plates are mounted in the mounting grooves through driving parts, and the lifting plates are connected with the driving parts through the driving parts. A cover plate is installed at the upper end of the lifting plate through springs, pressure sensors are fixedly installed on the front side and the rear side of the left end and the right end of the upper end of the lifting plate, when a crane passes through, the crane shields the two laser sensors on one side of the foundation, the situation that the crane approaches is detected, the laser sensors send signals to a first PCL controller, and the first PCL controller controls a hydraulic rod to contract; and after the cover plate descends, the rail is exposed, and the crane passes, the crane shields the two laser sensors on the other side of the foundation, the laser sensors detect that the crane leaves, the laser sensors send signals to the first PCL controller, and the first PCL controller controls the hydraulic rod to stretch, the cover plate ascends and recovers to be flush with the ground.

Description

Technical Field

[0001] This utility model relates to the field of crane track groove technology, specifically a liftable cover plate system for gantry crane track grooves. Background Technology

[0002] In port operations, gantry cranes typically need to move horizontally along rails, which are usually installed in trenches dug in the ground. While this design meets the crane's operational requirements, it inconveniences the passage of unmanned transport vehicles.

[0003] When unmanned transport vehicles cross trenches, the vehicles will experience bumps due to the width and depth of the trenches. Long-term use will lead to wear and tear on the vehicle's mechanical parts and shorten its service life.

[0004] Currently, the closest existing technology to this invention is a fixed track cover system. This solution reduces the bumps when vehicles pass over the trench by laying fixed covers. However, this solution has the following disadvantages:

[0005] The fixed cover plate cannot meet the operating requirements of the gantry crane, and the crane cannot be moved horizontally through the cover plate;

[0006] There is a gap between the cover plate and the rail, which may cause the cover plate to deform or be damaged after long-term use.

[0007] The lack of intelligent control makes it impossible to dynamically adjust the cover plate status according to actual needs. Utility Model Content

[0008] The purpose of this invention is to provide a liftable cover plate system for the track groove of a gantry crane, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a liftable cover plate system for the track groove of a gantry crane, comprising: a foundation for installing the cover plate, the foundation being U-shaped, with installation grooves provided on the inner sides of both the front and rear ends of the foundation, a lifting plate installed in the installation grooves via a drive component, a cover plate installed on the upper end of the lifting plate via a spring, and pressure sensors fixedly installed on the front and rear sides of both the left and right ends of the upper end of the lifting plate;

[0010] Two laser sensors are fixedly installed at both ends of the foundation, and a track is fixedly installed in the middle of the foundation in the left and right directions. When the cover is raised, it is flush with the track and the top of the foundation.

[0011] Preferably, the driving component includes a fixed frame and a lifting plate. The fixed frame is orifice-shaped, and a reinforcing plate is fixedly installed between the front and rear sides of the inner end of the fixed frame. Both the fixed frame and the reinforcing plate are fixed in the mounting groove by fixing bolts.

[0012] Preferably, rotating rods are rotatably connected to the front and rear sides of both ends of the fixed frame. The rotating rods on the left and right sides are staggered and rotatably connected by pivot pins. A fixed plate one is fixedly installed at one end of the fixed frame, and a fixed plate two is fixedly installed at the upper ends of the two rotating rods. A hydraulic rod is rotatably connected between the fixed plate one and the fixed plate two.

[0013] Preferably, the lower side of one end of the lifting plate is rotatably connected to the upper ends of the other two rotating rods, and a slide rail is fixedly installed on the other end of the lifting plate. A slider is slidably connected inside the slide rail, and the lower end of the slider is rotatably connected to the upper ends of the two rotating rods.

[0014] Preferably, support columns are fixedly installed on both the left and right ends and the front and rear sides of the fixed frame.

[0015] Preferably, a downwardly inclined slope plate is fixedly installed on the outer side of the cover plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] When the crane passes by, it blocks both laser sensors on one side of the foundation. Upon detecting the approach of the crane, the laser sensors send a signal to PCL controller 1. PCL controller 1 then controls the hydraulic rod to retract, causing the cover plate to descend and expose the track. After the crane passes, it blocks both laser sensors on the other side of the foundation. Upon detecting the departure of the crane, the laser sensors send a signal to PCL controller 1. PCL controller 1 then controls the hydraulic rod to extend, causing the cover plate to rise and return to being flush with the ground. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of part of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the unfolded top plate of this utility model;

[0021] Figure 4 This utility model system framework Figure 1 Schematic diagram;

[0022] Figure 5 This utility model system framework Figure 1 Schematic diagram.

[0023] In the diagram: 1. Foundation; 2. Mounting slot; 3. Track; 4. Laser sensor; 5. Fixing frame; 6. Reinforcing plate; 7. Fixing bolt; 8. Support column; 9. Fixing plate one; 10. Fixing plate two; 11. Hydraulic rod; 12. Lifting plate; 13. Slide rail; 14. Slider; 15. Spring; 16. Pressure sensor; 17. Support plate; 18. Cover plate; 19. Slope plate; 20. Rotating rod; 21. PCL controller one; 22. PCL controller two; 23. Alarm. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figures 1-5 This utility model provides a technical solution: a liftable cover plate system for the track groove of a gantry crane, comprising: a foundation 1 for installing a cover plate 18, the foundation 1 being U-shaped, with mounting grooves 2 on the inner sides of both the front and rear ends of the foundation 1, a lifting plate 12 installed in the mounting groove 2 via a driving component, a cover plate 18 installed on the upper end of the lifting plate 12 via a spring 15, pressure sensors 16 fixedly installed on the front and rear sides of both the left and right ends of the upper end of the lifting plate 12, a receiving plate 17 fixedly installed on the upper end of the pressure sensor 16, one end of the spring 15 fixed to the upper end of the lifting plate 12, and the other end fixed to the lower end of the cover plate 18, when the spring 15 is in a balanced state, the cover plate 18 does not contact the receiving plate 17, and the elastic coefficient of the spring 15 at the upper end of each lifting plate 12 is greater than the pressure applied to the cover plate 18 by the unmanned transport vehicle, so that the unmanned transport vehicle will not press down and displace the cover plate 18 when passing over it.

[0026] The driving component includes a fixed frame 5 and a lifting plate 12. The fixed frame 5 is in the shape of an opening. A reinforcing plate 6 is fixedly installed between the front and rear sides of the inner end of the fixed frame 5. The fixed frame 5 and the reinforcing plate 6 are both fixed in the mounting groove 2 by fixing bolts 7. The driving component is provided in several groups. Each group of driving components is provided with a lifting plate 12 at the upper end. Each lifting plate 12 is provided with a cover plate 18 at the upper end.

[0027] Rotating rods 20 are rotatably connected to the front and rear sides of both ends of the fixed frame 5. The rotating rods 20 on the left and right sides are staggered and rotatably connected by pivot pins. A fixed plate 9 is fixedly installed at one end of the fixed frame 5. A fixed plate 10 is fixedly installed at the upper end of the two rotating rods 20. A hydraulic rod 11 is rotatably connected between the fixed plate 9 and the fixed plate 10. The lower side of one end of the lifting plate 12 is rotatably connected to the upper end of the other two rotating rods 20. A slide rail 13 is fixedly installed at the other end of the lifting plate 12. A slider 14 is slidably connected in the slide rail 13. The lower end of the slider 14 is rotatably connected to the upper end of the two rotating rods 20. When the hydraulic rod 11 is activated, it can drive the slider 14 to slide in the slide rail 13, thereby driving the rotating rods 20 to rotate, so that the lifting plate 12 with the cover plate 18 can be raised and lowered in the mounting groove 2.

[0028] Support columns 8 are fixedly installed on both the left and right ends and the front and rear sides of the fixed frame 5. When the lifting plate 12 moves down to the lowest point, the lower end of the lifting plate 12 contacts the upper end of the support column 8, which supports and limits the lifting plate 12.

[0029] Several cover plates 18 are connected end to end. The outermost two cover plates 18 are fixedly installed with downward-sloping ramps 19 to facilitate the crane rollers to press down on the cover plates 18.

[0030] Two laser sensors 4 are fixedly installed at both ends of the foundation 1. A track 3 is fixedly installed in the middle of the foundation 1 in the left and right directions. When the cover plate 18 is raised, it is flush with the track 3 and the upper end of the foundation 1.

[0031] On one side of the foundation 1, PCL controller 1 21, PCL controller 22 and alarm 23 (not shown in the figure) are fixedly installed respectively. PCL controller 1 21 is electrically connected to hydraulic rod 11 and laser sensor 4, and PCL controller 22 is electrically connected to hydraulic rod 11, pressure sensor 16 and alarm 23.

[0032] When the crane passes by, it blocks both laser sensors 4 on one side of the foundation 1. When the crane approaches, the laser sensors 4 send a signal to the PCL controller 21. The PCL controller 21 controls the hydraulic rod 11 to retract, and the cover plate 18 to descend, exposing the track 3. After the crane passes by, it blocks both laser sensors 4 on the other side of the foundation 1. When the crane leaves, the laser sensors 4 send a signal to the PCL controller 21. The PCL controller 21 controls the hydraulic rod 11 to extend, and the cover plate 18 to rise, restoring it to be flush with the ground.

[0033] Abnormal state: When the crane passes by, the cover plate 18 cannot fall on its own due to control abnormality or other malfunction. When the crane touches the cover plate 18, it applies pressure to the cover plate 18. The cover plate 18 moves down and touches the pressure sensor 16. The pressure sensor 16 sends a signal to the PCL controller 22. The PCL controller 22 controls the hydraulic rod 11 to fall quickly. At the same time, the PCL controller 22 activates the alarm 23 to issue an emergency notification.

[0034] Extreme condition: When the crane passes by, the cover plate 18 cannot fall even after being pressed down. An emergency report is issued. If a collision occurs with the crane and the collision force exceeds the threshold, the fixing bolt 7 will break. The crane can then push the cover plate 18 away to avoid damage to the crane.

[0035] In actual use, when the crane passes by, it blocks both laser sensors 4 on one side of the foundation 1. When the crane approaches, the laser sensors 4 send a signal to the PCL controller 21. The PCL controller 21 controls the hydraulic rod 11 to retract, and the cover plate 18 to descend, exposing the track 3. After the crane passes, it blocks both laser sensors 4 on the other side of the foundation 1. When the crane leaves, the laser sensors 4 send a signal to the PCL controller 21. The PCL controller 21 controls the hydraulic rod 11 to extend, and the cover plate 18 to rise, restoring it to be flush with the ground.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liftable cover system for the track groove of a gantry crane, comprising: The foundation (1) for installing the cover plate (18) is characterized in that: the foundation (1) is U-shaped, and the inner sides of the front and rear ends of the foundation (1) are provided with installation grooves (2), and the installation grooves (2) are installed with lifting plates (12) by driving components. The upper end of the lifting plate (12) is installed with a cover plate (18) by springs (15), and pressure sensors (16) are fixedly installed on the front and rear sides of the left and right ends of the upper end of the lifting plate (12). Two laser sensors (4) are fixedly installed at both ends of the foundation (1). A track (3) is fixedly installed in the middle part of the foundation (1) in the left and right directions. When the cover plate (18) is raised, it is flush with the track (3) and the upper end of the foundation (1).

2. The liftable cover plate system for the track groove of a gantry crane according to claim 1, characterized in that: The driving component includes a fixed frame (5) and a lifting plate (12). The fixed frame (5) is orifice-shaped. A reinforcing plate (6) is fixedly installed between the front and rear sides of the inner end of the fixed frame (5). The fixed frame (5) and the reinforcing plate (6) are both fixed in the mounting groove (2) by fixing bolts (7).

3. A liftable cover plate system for the track groove of a gantry crane according to claim 2, characterized in that: Rotating rods (20) are rotatably connected to the front and rear sides of the left and right ends of the fixed frame (5). The rotating rods (20) on the left and right sides are staggered and rotatably connected by pivot pins. A fixing plate (9) is fixedly installed at one end of the fixed frame (5). A fixing plate (10) is fixedly installed at the upper end of the two rotating rods (20). A hydraulic rod (11) is rotatably connected between the fixing plate (9) and the fixing plate (10).

4. A liftable cover plate system for the track groove of a gantry crane according to claim 3, characterized in that: The lower side of one end of the lifting plate (12) is rotatably connected to the upper ends of the other two rotating rods (20). A slide rail (13) is fixedly installed on the other end of the lifting plate (12). A slider (14) is slidably connected inside the slide rail (13). The lower end of the slider (14) is rotatably connected to the upper ends of the two rotating rods (20).

5. A liftable cover plate system for the track groove of a gantry crane according to claim 2, characterized in that: Support columns (8) are fixedly installed on the front and back sides of both the left and right ends of the fixed frame (5).

6. A liftable cover plate system for the track groove of a gantry crane according to claim 1, characterized in that: A downwardly inclined ramp (19) is fixedly installed on the outer side of the cover plate (18).

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