A mobile track monitoring device for a gantry crane

Abstract

The utility model discloses a mobile track monitoring devices of portal crane mainly relates to portal crane mobile monitoring field. Including track and lower crossbeam, the both sides symmetry of lower crossbeam are equipped with detection box, and the wheel support is slidably connected in detection box along the vertical direction, and the detection wheel is rotatably connected on the wheel support, and the detection wheel is in rolling contact with the track, and the pressure sensor is equipped on the wheel support, and the compression spring is equipped between the pressure sensor and the top of detection box, and the alarm component of electric connection with the pressure sensor is equipped on lower crossbeam, and one side of track is equipped with anchor pile, and the side surface of lower crossbeam is equipped with fixed base, and the locating column of cooperation fixed base use is equipped on anchor pile. The utility model has the beneficial effect that it can solve the technical problem of not being able to predict the moving state of portal crane under strong wind weather and affecting the safety of hoisting, and the relative state of portal crane and track is monitored in real time, and the stability of portal crane and the safety of hoisting are ensured.

Description

Technical Field

[0001] This utility model relates to the field of gantry crane movement monitoring, specifically a gantry crane movement track monitoring device. Background Technology

[0002] Gantry cranes can move along fixed tracks, and due to their high site utilization, large operating range, wide adaptability, and strong versatility, they are widely used in port cargo yards. This leads to gantry cranes being used more often in open outdoor areas. In windy weather, due to the large windward area of ​​gantry cranes, they are prone to swaying. Severe swaying can even cause them to detach from the tracks and overturn, greatly affecting the safety of lifting operations. Current technology cannot accurately predict the movement of gantry cranes and can only rely on visual observation of their shape. When severe swaying is observed, it may already pose a safety threat to the lifting operation. Therefore, real-time movement monitoring of gantry cranes to ensure the safety of lifting operations is particularly important. Utility Model Content

[0003] The purpose of this utility model is to provide a moving track monitoring device for gantry cranes, which can solve the technical problem of not being able to predict the movement status of gantry cranes in windy weather, thus affecting the safety of hoisting. It can monitor the relative status of the gantry crane and the track in real time, and promptly alarm and adjust when the sway amplitude is large, so as to ensure the stability of the gantry crane and the safety of hoisting.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] A mobile track monitoring device for a gantry crane includes a track and a lower crossbeam symmetrically arranged at the bottom of the crane body. Multiple rollers are rotatably connected to the lower crossbeam, and the rollers are rolled along the track. Detection boxes are symmetrically arranged on both sides of the lower crossbeam. A wheel frame is slidably connected vertically inside each detection box, and a detection wheel is rotatably connected to the wheel frame. The detection wheel passes through the bottom of the detection box and rolls into contact with the track. A pressure sensor is installed on the wheel frame, and a compression spring is provided between the pressure sensor and the top of the detection box. An alarm component electrically connected to the pressure sensor is provided on the lower crossbeam. An anchoring pile is provided on one side of the track, and a fixing seat is provided on the side of the lower crossbeam. A positioning post is provided on the anchoring pile to cooperate with the fixing seat.

[0006] Furthermore, the top of the wheel frame is symmetrically provided with guide sleeves, the top of the detection box is symmetrically provided with guide rods, the guide rods are slidably connected inside the guide sleeves, the pressure sensor is fixed at the bottom of the guide sleeves, and the compression spring is disposed between the bottom end of the guide rod and the pressure sensor.

[0007] Furthermore, the alarm component is an alarm light.

[0008] Furthermore, the top of the anchor pile is provided with a U-shaped frame for use with the fixing seat, and the positioning column is slidably connected to the U-shaped frame in a vertical direction.

[0009] Furthermore, the fixed base is provided with a positioning hole, and the positioning pin is movably inserted into the positioning hole.

[0010] Furthermore, the top of the anchor pile is provided with a slot, and the positioning post is inserted into the slot after passing through the positioning hole.

[0011] Furthermore, the top of the U-shaped frame is provided with a telescopic rod, and the positioning post is fixed to the movable end of the telescopic rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The structure of this utility model features symmetrically arranged detection boxes on both sides of the lower crossbeam at the bottom of the crane body. A wheel frame is vertically slidably connected inside the detection box, and a detection wheel that rolls and contacts the track is rotatably connected to the wheel frame. A pressure sensor is mounted on the wheel frame, and a compression spring is installed between the pressure sensor and the top of the detection box. An alarm component electrically connected to the pressure sensor is located on the lower crossbeam. With this structure, when the crane body moves on the track, the wheel frames inside the detection boxes on both sides of the lower crossbeam are pressed against the track by the compression spring, allowing the detection wheel on the wheel frame to move stably along the track. The force of the compression spring acting on the pressure sensor remains within a stable range. However, when the crane body experiences severe shaking, the alarm component on both sides of the lower crossbeam... The relative position between the measuring box and the track will change significantly. Under the action of the compression spring, the detection wheel still maintains rolling contact with the track, but the compression state of the compression spring has changed. This allows the compression state of the compression spring to accurately reflect the change in distance between the measuring box and the track. When the compression state of the compression spring changes, the force it exerts on the pressure sensor also changes. This allows the change in the pressure sensor value to accurately reflect the degree of sway of the crane body. When the value changes too much, the alarm component can promptly issue an alarm, reminding relevant personnel to stop the hoisting operation in time. This allows for early fixation and adjustment of the gantry crane, avoiding potential overturning risks and effectively ensuring the safety of the hoisting.

[0014] 2. Anchor piles are installed on one side of the track, and fixed seats are installed on the side of the lower crossbeam. The anchor piles are equipped with positioning columns that work in conjunction with the fixed seats. With this structure, when the alarm component sounds, the operator can move the gantry crane to the anchor piles. The positioning columns on the anchor piles and the fixed seats work together to effectively fix the main body of the crane, further reducing the risk of the gantry crane overturning and improving the stability and safety of the gantry crane. Attached Figure Description

[0015] Appendix Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Appendix Figure 2 This is the right view of this utility model.

[0017] Appendix Figure 3 This is an appendix to this utility model. Figure 2 A cross-sectional view along the AA direction.

[0018] Appendix Figure 4 This is an appendix to this utility model. Figure 3 A magnified view of part B in the middle.

[0019] Appendix Figure 5 This is an appendix to this utility model. Figure 2 A cross-sectional view along the CC direction.

[0020] Appendix Figure 6 This is an appendix to this utility model. Figure 2 A cross-sectional view along the DD direction.

[0021] The labels shown in the attached diagram:

[0022] 1. Track; 2. Crane body; 3. Lower crossbeam; 4. Roller; 5. Detection box; 6. Wheel frame; 7. Detection wheel; 8. Pressure sensor; 9. Compression spring; 10. Anchor pile; 11. Fixing seat; 12. Positioning column; 13. Guide sleeve; 14. Guide rod; 15. Warning light; 16. U-shaped frame; 17. Positioning hole; 18. Slot; 19. Telescopic rod. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0024] Reference Figure 1 and Figure 2This utility model describes a moving track monitoring device for a gantry crane. The main structure includes a track 1 and lower crossbeams 3 symmetrically arranged at the bottom of the crane body 2. Support legs are symmetrically fixed to both sides of the crane body 2 by welding or bolts. The lower crossbeams 3 are fixed to the bottom of the two support legs by welding or bolts. Multiple rollers 4 are rotatably connected to the lower crossbeams 3 via bearings. The rollers 4 rotate under the drive of a motor and are tumbled onto the track 1. This structure allows the crane body 2 on the lower crossbeams 3 to move along the track 1 when the rollers 4 rotate. Detection boxes 5 are symmetrically fixed to both sides of the lower crossbeams 3 by welding or bolts. The bottom of the detection boxes 5 is open, and the detection boxes 5 are vertically slidably connected inside. The system includes a wheel frame 6, which is generally an arc-shaped shell structure. A detection wheel 7 is rotatably connected to the wheel frame 6 via bearings. The detection wheel 7 passes through the bottom of the detection box 5 and rolls into contact with the track 1. A pressure sensor 8 is fixed to the wheel frame 6 by welding or bolts. The pressure sensor 8 can be any contact type pressure sensor structure available in the prior art; specifically, it can be a sensor structure from the NS-P321 series manufactured by Shanghai Tianmu Sensor Co., Ltd. A compression spring 9 is provided between the pressure sensor 8 and the top of the detection box 5. This structure ensures that when the crane body 2 moves on the track 1 via rollers 4, the detection wheel 7 on the wheel frame 6 inside the detection box 5 is pressed against the track 1 by the compression spring 9. The moving detection wheel 7 of the crane body 2 also moves on the track 1. When the crane body 2 moves normally on the track 1, the force of the compression spring 9 acting on the pressure sensor 8 is within a relatively stable range. However, when the crane body 2 shakes excessively, the two sides of the crane body 2 swing relative to the track 1, causing the distance between the detection boxes 5 on both sides of the lower crossbeam 3 and the track 1 to change. Although the detection wheel 7 on the wheel frame 6 still maintains rolling contact with the track 1 under the action of the compression spring 9, the compression amount of the compression spring 9 changes, which in turn causes a significant change in the value acting on the pressure sensor 8. When the values ​​of the pressure sensors 8 at multiple locations change significantly, it indicates that the crane body 2 has shaken significantly. To eliminate the influence of foreign objects on track 1, the degree of sway of the crane body 2 relative to track 1 can be reflected by the numerical change range of multiple position pressure sensors 8. Once the value exceeds the set range, it indicates that the wind force is strong. In this case, the hoisting operation should not continue, and the operator should be reminded to fix and adjust the crane body 2 in time. The lower crossbeam 3 is equipped with an alarm component electrically connected to the pressure sensors 8. When the numerical range of the pressure sensors 8 changes significantly, a signal will be transmitted to the alarm component, causing the alarm component to sound an alarm, so as to remind the operator to make timely adjustments. Anchor piles 10 are provided on one side of track 1. The anchor piles 10 are anchored to the ground, with most of them located underground, to ensure the stability of the anchor piles 10.The lower crossbeam 3 has a fixing seat 11 fixed to its side by welding or bolts. The anchor pile 10 is equipped with a positioning post 12 that works in conjunction with the fixing seat 11. With this structure, when the alarm component sounds, the operator can control the crane body 2 to move to the anchor pile 10, connecting the fixing seat 11 on the side of the lower crossbeam 3 with the positioning post 12 on the anchor pile 10. This securely fixes the crane body 2 to the anchor pile 10, stopping the lifting operation and reducing the swaying of the crane body 2 caused by wind, improving its safety and reducing the risk of overturning. This structure enables real-time monitoring of the crane body 2's status and allows for timely fixation based on monitoring information, ensuring the safety of the lifting operation.

[0025] Preferred, refer to Figure 3 and Figure 4 The top of the wheel frame 6 is symmetrically fixed with guide sleeves 13 by welding or bolts, and the top of the detection box 5 is symmetrically fixed with guide rods 14 by welding or bolts. The guide rods 14 are slidably connected inside the guide sleeves 13. The pressure sensor 8 is fixed to the bottom of the guide sleeves 13 by welding or bolts. The compression spring 9 is set between the bottom end of the guide rod 14 and the pressure sensor 8. This structure allows the wheel frame 6 to accurately slide vertically within the detection box 5 under the sliding cooperation of the guide rods 14 and the guide sleeves 13, thereby generating an accurate force on the compression spring 9. This allows the compression amount of the compression spring 9 to accurately reflect the movement of the detection box 5 relative to the track 1, and thus accurately match the tilt degree of the crane body 2, further improving the accuracy of monitoring the status of the crane body 2.

[0026] Preferably, the alarm component is an alarm light 15, which can emit a clear alarm light, making it easier for relevant operators to notice, improving the warning effect on relevant operators, and facilitating timely fixation and adjustment of the crane body 2.

[0027] Preferably, the top of the anchor pile 10 is fixed with a U-shaped frame 16 for use with the fixed seat 11 by welding or integral molding. The U-shaped frame 16 is arranged in a horizontal U-shape. The positioning column 12 is slidably connected to the U-shaped frame 16 in a vertical direction. This structure allows the fixed seat 11 on the side of the lower crossbeam 3 to enter the interior of the U-shaped frame 16 from one side of the horizontally arranged U-shape when the crane body 2 moves on the track 1. After that, the positioning column 12 slides vertically and connects with the fixed seat 11, thereby preventing the fixed seat 11 from continuing to move horizontally. The upper and lower sides of the horizontally arranged U-shape effectively restrict the vertical position of the fixed seat 11, preventing the fixed seat 11 from swaying up and down. This effectively limits the operation of the fixed seat 11 in all directions, further improving the firmness of the fixed seat 11 and improving the fixing effect on the crane body 2.

[0028] Preferred, refer to Figure 6 The fixed base 11 is provided with a through positioning hole 17, and the positioning post 12 is movably inserted into the positioning hole 17. After the positioning post 12 slides vertically, it is inserted into the positioning hole 17 on the fixed base 11, thereby realizing the effective positioning of the fixed base 11 and effectively restricting the position of the fixed base 11 in the lateral direction. The structure is simple, and the limiting operation of the fixed base 11 is more convenient and stable.

[0029] Preferred, refer to Figure 5 The top of the anchor pile 10 is provided with a slot 18, which is recessed downward from the top of the anchor pile 10. The positioning post 12 passes through the positioning hole 17 and is movably inserted into the slot 18. This structure allows the positioning post 12 to continue sliding downward into the slot 18 inside the anchor pile 10 after passing through the positioning hole 17 on the fixing seat 11. It is not only fixed with the U-shaped frame 16 on the anchor pile 10, but also extends further into the interior of the anchor pile 10, increasing the contact area with the anchor pile 10 and further improving the firmness of positioning the fixing seat 11.

[0030] Preferably, the top of the U-shaped frame 16 is fixed with a telescopic rod 19 by welding or bolting. The telescopic rod 19 can generally be an electric cylinder or a hydraulic cylinder. The positioning column 12 is fixed to the movable end of the telescopic rod 19 by welding or bolting. This structure uses the telescopic movement of the telescopic rod 19 to drive the positioning column 12 to move vertically, thereby realizing the insertion and cooperation with the positioning hole 17 on the fixed seat 11, making the positioning control of the positioning column 12 more efficient and stable.

[0031] Working Principle: The structure of this invention features symmetrically arranged detection boxes 5 on both sides of the lower crossbeam 3 at the bottom of the crane body 2. A wheel frame 6 is vertically slidably connected inside the detection box 5. A detection wheel 7, which rolls in contact with the track 1, is rotatably connected to the wheel frame 6. A pressure sensor 8 is mounted on the wheel frame 6, and a compression spring 9 is positioned between the pressure sensor 8 and the top of the detection box 5. An alarm component electrically connected to the pressure sensor 8 is mounted on the lower crossbeam 3. With this structure, when the crane body 2 moves on the track 1, the wheel frames 6 inside the detection boxes 5 on both sides of the lower crossbeam 3 are pressed against the track 1 by the compression spring 9, allowing the detection wheel 7 on the wheel frame 6 to move stably along the track 1. The force of the compression spring 9 acting on the pressure sensor 8 remains within a stable range. However, when the crane body 2 experiences severe shaking, the relative position between the detection boxes 5 on both sides of the lower crossbeam 3 and the track 1 changes significantly. Under the action of the compression spring 9, the detection wheel 7 still maintains rolling contact with the track 1, but the compression state of the compression spring 9 changes, causing… The compression state of the compression spring 9 accurately reflects the change in distance between the detection box 5 and the track 1. When the compression state of the compression spring 9 changes, the force acting on the pressure sensor 8 also changes accordingly. This allows the change in the value of the pressure sensor 8 to accurately reflect the degree of swaying of the crane body 2. When the value changes too much, the alarm component can promptly issue an alarm, reminding relevant personnel to stop the hoisting operation in time, thereby fixing and adjusting the gantry crane in advance to avoid potential overturning risks and effectively ensure the safety of the hoisting. Anchor piles 10 are set on one side of the track 1, and fixed seats 11 are set on the side of the lower crossbeam 3. The anchor piles 10 are equipped with positioning columns 12 that cooperate with the fixed seats 11. With this structure, when the alarm component issues an alarm, the operator can move the gantry crane to the anchor piles 10. The positioning columns 12 on the anchor piles 10 and the fixed seats 11 cooperate to effectively fix the crane body 2, further reducing the risk of the gantry crane overturning and improving the stability and safety of the gantry crane.

Claims

1. A mobile track monitoring device of a portal crane, comprising a track (1) and symmetrical lower crossbeams (3) arranged at the bottom of a crane body (2), a plurality of rollers (4) being rotatably connected to the lower crossbeams (3) and being rollingly connected to the track (1), characterized in that: The lower crossbeam (3) is symmetrically provided with detection boxes (5) on both sides. A wheel frame (6) is slidably connected in the vertical direction inside the detection box (5). A detection wheel (7) is rotatably connected on the wheel frame (6). The detection wheel (7) passes through the bottom of the detection box (5) and rolls into contact with the track (1). A pressure sensor (8) is provided on the wheel frame (6). A compression spring (9) is provided between the pressure sensor (8) and the top of the detection box (5). An alarm component electrically connected to the pressure sensor (8) is provided on the lower crossbeam (3). An anchor pile (10) is provided on one side of the track (1). A fixing seat (11) is provided on the side of the lower crossbeam (3). A positioning column (12) is provided on the anchor pile (10) to cooperate with the fixing seat (11).

2. The moving track monitoring device for a gantry crane according to claim 1, characterized in that: The top of the wheel frame (6) is symmetrically provided with guide sleeves (13), and the top of the detection box (5) is symmetrically provided with guide rods (14). The guide rods (14) are slidably connected inside the guide sleeves (13). The pressure sensor (8) is fixed at the bottom of the guide sleeves (13), and the compression spring (9) is set between the bottom end of the guide rod (14) and the pressure sensor (8).

3. The moving track monitoring device for a gantry crane according to claim 1, characterized in that: The alarm component is an alarm light (15).

4. The moving track monitoring device for a gantry crane according to claim 1, characterized in that: The top of the anchor pile (10) is provided with a U-shaped frame (16) for use with the fixing seat (11), and the positioning column (12) is slidably connected to the U-shaped frame (16) in a vertical direction.

5. The moving track monitoring device for a gantry crane according to claim 4, characterized in that: The fixed base (11) is provided with a positioning hole (17), and the positioning pin (12) is movably inserted into the positioning hole (17).

6. The moving track monitoring device for a gantry crane according to claim 5, characterized in that: The top of the anchor pile (10) is provided with a slot (18), and the positioning column (12) is inserted into the slot (18) after passing through the positioning hole (17).

7. The moving track monitoring device for a gantry crane according to claim 5, characterized in that: The top of the U-shaped frame (16) is provided with a telescopic rod (19), and the positioning column (12) is fixed to the movable end of the telescopic rod (19).

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