Walking anti-collision device of portal crane

Abstract

The utility model relates to a gantry crane walking anti-collision device which comprises a crane support, a connecting plate is arranged on the front side of the crane support, the connecting plate is fixedly connected with the crane support through a plurality of fastening bolts, and a buffer protection structure is arranged on the front side of the connecting plate. And an impact control structure is arranged at the top of the buffer protection structure. According to the walking anti-collision device of the portal crane, the connecting plate and the crane support are fixed through the fastening bolts, and structures such as buffering protection, collision control and detection expelling can be limited to be located in front of the crane support. When the crane support moves, the anti-collision device can move forwards along with the crane support. The infrared sensor in the panel can be used for detecting front personnel, and once the personnel are found, signals are sent to the buzzer and the flashing light, so that the flashing light and the buzzer give out flashing and buzzing sounds to warn and expel the personnel in front of the crane bracket, and thus the operation safety is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to door type crane technical field, concretely is a door type crane walking anticollision device. BACKGROUND

[0002] Door type crane is a variant of bridge crane, which is designed for outdoor freight yard, stockyard and bulk cargo handling operation. Its metal structure is in the form of a door-shaped frame, and two legs are installed under the main beam, which can directly walk on the track on the ground. The design of the door type crane makes it have the characteristics of high site utilization, large operation range, wide adaptability and strong versatility, and it is widely used in port freight yard.

[0003] The Chinese utility model patent with publication number CN220976321U proposes a "safety anti-collision device for door type crane". The technical solution proposes that the anti-collision device used in the market has poor protection performance and cannot effectively buffer and offset the inertia generated by the crane trolley running, resulting in damage to the crane trolley due to collision and reducing its service life. The utility model provides the following technical solution: "by conveniently driving the scissor frame to contract inward, the scissor frame can quickly stretch and unload the force of the two buffer springs by driving the four sliding sleeves to slide on the two adjacent U-shaped slide rods to the sides, so as to effectively buffer and offset the inertia generated by the crane trolley running, avoid the occurrence of damage to the crane trolley due to collision, and improve the service life of the crane trolley".

[0004] The above device has the following defects in actual use: it can only play the role of buffering protection for the crane trolley, and cannot achieve the effect of driving away in advance when there is a person in front of the crane trolley, which has certain danger. Therefore, a door type crane walking anticollision device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a door type crane walking anticollision device to overcome the deficiencies of the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A door type crane walking anticollision device, comprising a crane support, a connecting plate is arranged on the front side of the crane support, the connecting plate is fixedly connected with the crane support through a plurality of fastening bolts, a buffer protection structure is arranged on the front side of the connecting plate, and a collision control structure is arranged on the top of the buffer protection structure.

[0008] The buffer protection structure comprises a connecting block fixedly installed on the front side of the connecting plate, the front side of the connecting block is fixedly installed with two first shaft seats, the interiors of the two first shaft seats are both rotationally installed with a support arm, the opposite sides of the two support arms are both fixedly installed with a side block, the two side blocks are fixedly installed with a spring, the ends of the two support arms away from the first shaft seats are both rotationally installed with a second shaft seat, the interiors of the two second shaft seats are both slidably installed with a support rod, the left and right sides of the two support rods are both fixedly installed with a side support plate, the front side of the side support plate is fixedly installed with a back plate, the back of the back plate is fixedly installed with two dampers, the telescopic ends of the two dampers are both fixedly connected with the two second shaft seats, the front side of the back plate is fixedly installed with a panel, and the panel is provided with a detection and driving away structure.

[0009] The detection and driving away structure comprises a plurality of infrared sensors fixedly penetrated into the interior of the lower end of the panel, a buzzer fixedly installed at the upper left corner of the front side of the panel, and a flash lamp fixedly installed at the upper right corner of the front side of the panel, wherein the flash lamp and the buzzer are both electrically connected with the plurality of infrared sensors.

[0010] The utility model discloses the beneficial effect is: through fastening bolt with the crane support fixedly installed with the connecting plate, can limit buffer protection, impact control and detection and driving away structure in the front of crane support, and two support arms swing through the first shaft seat in the front of connecting block, and the side support plate and support rod jointly act, and limit the slide of second shaft seat on the back plate. When the crane support moves, the anti -collision device goes along in front. The infrared sensor in the panel detects the person in front, once finds the personnel, immediately sends the signal to the buzzer and the flash lamp, and both start immediately, and send the flash and the buzzing sound, and the personnel in the front of crane support are warned and driven away, and the operation safety is ensured.

[0011] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0012] Further, the front side of the connecting block is fixedly installed with a limiting plate, the limiting plate is in " Y " shape structure, and the limiting plate is located between the two first shaft seats and the two support arms.

[0013] Further, the impact control structure comprises a PLC controller fixedly installed at the bottom of the connecting block, the PLC controller is electrically connected with the walking driving motor of the portal crane, the top of the limiting plate is fixedly installed with a support frame, the interior of the support frame is fixedly installed with a pressure sensor electrically connected with the PLC controller, the back of the panel is provided with a telescopic rod, and the telescopic end of the telescopic rod faces the pressure sensor.

[0014] Furthermore, two support frames are fixedly installed on the back of the panel, with the two support frames located on the upper and lower sides of the back panel respectively, and the telescopic rod is fixedly installed on the upper support frame.

[0015] Furthermore, both the side block and the spring are located at one end near the limiting plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the gantry crane traveling anti-collision device from one perspective.

[0017] Figure 2 This is a schematic diagram of the traveling anti-collision device for the gantry crane of this utility model from another perspective;

[0018] Figure 3 This is a schematic diagram of the explosion structure of the gantry crane traveling anti-collision device of this utility model;

[0019] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Crane bracket; 2. Connecting plate; 3. Fastening bolts; 4. Connecting block; 401. PLC controller; 5. No. 1 shaft seat; 6. Support arm; 7. Side block; 8. Spring; 9. No. 2 shaft seat; 10. Support rod; 11. Side support plate; 12. Back plate; 13. Damper; 14. Panel; 15. Infrared sensor; 16. Buzzer; 17. Strobe light; 18. Limit plate; 19. Support frame; 20. Pressure sensor; 21. Telescopic rod; 22. Support back frame. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] Example 1, such as Figures 1 to 4 As shown, a gantry crane traveling anti-collision device includes a crane support 1, a connecting plate 2 is provided on the front side of the crane support 1, and a plurality of fastening bolts 3 are threaded on the surface of the connecting plate 2 and penetrate into the crane support 1. The connecting plate 2 and the crane support 1 are fixedly connected by the plurality of fastening bolts 3. A buffer protection structure is provided on the front side of the connecting plate 2, and an impact control structure is provided on the top of the buffer protection structure.

[0024] Specifically, the buffer protection structure comprises a connecting block 4 fixedly installed on the front side of the connecting plate 2, the front side of the connecting block 4 is fixedly installed with two first shaft seats 5, the inside of each of the two first shaft seats 5 is rotatably installed with a supporting arm 6, the opposite sides of each of the two supporting arms 6 are fixedly installed with a side block 7, the two side blocks 7 are fixedly installed with a spring 8 between, the end of each of the two supporting arms 6 away from the first shaft seat 5 is rotatably installed with a second shaft seat 9, the inside of each of the two second shaft seats 9 is slidably installed with a supporting rod 10, the left and right sides of each of the two supporting rods 10 are fixedly installed with a side supporting plate 11, the front side of each of the two side supporting plates 11 is fixedly installed with a back plate 12, the back of the back plate 12 is fixedly installed with two dampers 13, the front side of the back plate 12 is fixedly installed with a face plate 14, and the face plate 14 is provided with a detection and driving away structure.

[0025] Specifically, the detection and driving away structure comprises a plurality of infrared sensors 15 fixedly penetrating into the inside of the lower end of the face plate 14, a buzzer 16 fixedly installed on the upper left corner of the front side of the face plate 14, and a flash lamp 17 fixedly installed on the upper right corner of the front side of the face plate 14, wherein the flash lamp 17 and the buzzer 16 are electrically connected with the plurality of infrared sensors 15.

[0026] The plurality of fastening bolts 3 are penetrated through the connecting plate 2 and are screwed into the inside of the crane support 1, so that the buffer protection structure, the impact control structure and the detection and driving away structure are limited in front of the crane support 1, the two supporting arms 6 are supported in front of the connecting block 4 to swing through the two first shaft seats 5, and the two second shaft seats 9 are limited to slide on the back plate 12 through the two side supporting plates 11 and the two supporting rods 10, so that the crane support 1 drives the anti-collision device to move forward when the crane support 1 moves, at this time, the plurality of infrared sensors 15 in the face plate 14 detect the personnel in front, and when the personnel in front of the crane support 1 are detected, signals are transmitted to the buzzer 16 and the flash lamp 17, the buzzer 16 and the flash lamp 17 receive the signals to open the flash and the buzzing sound respectively, so as to warn and drive away the personnel in front of the crane support 1.

[0027] It should be noted that the model of the infrared sensor 15 is XKC-KD200, the sensing distance thereof is 2 meters, the sensing mode thereof is an active infrared sensor, the power supply voltage thereof is DC 5-24V, the output current thereof is 1mA-2A, the protection level thereof is IP65, and the reaction time thereof is 0.5 seconds, which belongs to the known technical means in the field.

[0028] When the personnel does not leave, the panel 14 will collide with the surface, and the panel 14 will push the back plate 12 to extrude backward. Since the angle between the two support arms 6 is greater than 90°, when the back plate 12 extrudes backward, the two No. 2 shaft seats 9 installed on the outer side of the two support arms 6 will slide outward on the outside of the two support rods 10. The outward sliding of the two No. 2 shaft seats 9 can pull the two dampers 13 to expand, and the outward sliding of the outside of the two support rods 10 can make the two support arms 6 open outward, which can pull the spring 8 to expand. The expansion of the spring 8 and the two dampers 13 can relieve the impact of the backward movement of the panel 14, and achieve the effect of protecting the personnel.

[0029] Embodiment 2, as shown in the figure, this embodiment is a further improvement on the basis of embodiment 1, which is as follows: Figures 1 to 4

[0030] The front side of the connecting block 4 is fixedly installed with a limiting plate 18, the limiting plate 18 is in a "Y" shape structure, and the limiting plate 18 is located between the two No. 1 shaft seats 5 and the two support arms 6.

[0031] In this way, the two support arms 6 are limited by the installed limiting plate 18, preventing the spring 8 from pulling the two support arms 6 together.

[0032] Embodiment 3, as shown in the figure, this embodiment is a further improvement on the basis of embodiment 2, which is as follows: Figures 1 to 4

[0033] The impact control structure includes a PLC controller 401 fixedly installed at the bottom of the connecting block 4, the PLC controller 401 is electrically connected with the walking drive motor of the gantry crane, the top of the limiting plate 18 is fixedly installed with a support frame 19, the inside of the support frame 19 is fixedly installed with a pressure sensor 20 electrically connected with the PLC controller 401, the back of the panel 14 is provided with a telescopic rod 21, and the telescopic end of the telescopic rod 21 faces the pressure sensor 20.

[0034] In this way, the pressure sensor 20 is supported on the top of the limiting plate 18 by the support frame 19. When the panel 14 collides with the personnel and moves backward, the telescopic rod 21 will be pushed to move backward and contact the pressure sensor 20. After the pressure sensor 20 is pressed, a signal is transmitted to the PLC controller 401. At this time, the PLC controller 401 controls the walking drive motor of the gantry crane to stop running, thereby protecting the personnel.

[0035] Embodiment 4, as shown in the figure, this embodiment is a further improvement on the basis of embodiment 3, which is as follows: Figures 1 to 3

[0036] ​​​The back of the panel 14 is fixedly provided with two support back frames 22, which are respectively arranged on the upper and lower sides of the back plate 12, and the telescopic rod 21 is fixedly arranged on the back of the upper support back frame 22.

[0037] In this way, the back of the panel 14 is supported and reinforced by the two support back frames 22.

[0038] Embodiment 5, as shown in the figure, is a further improvement based on Embodiment 2, which is as follows: Figures 1 to 3

[0039] The side block 7 and the spring 8 are both arranged near one end of the limiting plate 18.

[0040] In this way, the damper 13 on the back of the back plate 12 is prevented from colliding with the spring 8 when the two support arms 6 are outwardly opened.

[0041] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.​

Claims

1. A walking anticollision device for a portal crane, comprising a crane support (1), characterized in that: The front side of the crane support (1) is provided with a connecting plate (2), which is fixedly connected with the crane support (1) through a plurality of fastening bolts (3), and the front side of the connecting plate (2) is provided with a buffer protection structure, and the top of the buffer protection structure is provided with an impact control structure. The buffer protection structure comprises a connecting block (4) fixedly installed on the front side of the connecting plate (2), a number of first shaft seats (5) are fixedly installed on the front side of the connecting block (4), supporting arms (6) are rotatably installed in the first shaft seats (5), side blocks (7) are fixedly installed on the opposite sides of the supporting arms (6), springs (8) are fixedly installed between the side blocks (7), second shaft seats (9) are rotatably installed at the ends of the supporting arms (6) away from the first shaft seats (5), supporting rods (10) are slidably installed in the second shaft seats (9), side supporting plates (11) are fixedly installed on the left and right sides of the supporting rods (10), a back plate (12) is fixedly installed on the front side of the side supporting plates (11), dampers (13) are fixedly installed on the back of the back plate (12), the extension ends of the dampers (13) are fixedly connected with the second shaft seats (9), a panel (14) is fixedly installed on the front side of the back plate (12), and a detection and driving structure is arranged on the panel (14). The detection and driving structure comprises a plurality of infrared sensors (15) fixedly penetrating into the inner part of the lower end of the panel (14), a buzzer (16) is fixedly installed at the upper left corner of the front side of the panel (14), a flash lamp (17) is fixedly installed at the upper right corner of the front side of the panel (14), and the flash lamp (17) and the buzzer (16) are electrically connected with the plurality of infrared sensors (15).

2. A portal crane anti-collision device according to claim 1, characterized in that: A limiting plate (18) is fixedly installed on the front side of the connecting block (4), the limiting plate (18) is in a "Y" shape structure, and the limiting plate (18) is located between the first shaft seats (5) and the supporting arms (6).

3. A portal crane anti-collision device according to claim 2, characterized in that: The impact control structure comprises a PLC controller (401) fixedly installed on the bottom of the connecting block (4), the PLC controller (401) is electrically connected with the walking driving motor of the gantry crane, a supporting frame (19) is fixedly installed on the top of the limiting plate (18), a pressure sensor (20) electrically connected with the PLC controller (401) is fixedly installed in the supporting frame (19), and a telescopic rod (21) is arranged on the back of the panel (14).

4. A portal crane anti-collision device according to claim 3, characterized in that: Two supporting back frames (22) are fixedly installed on the back of the panel (14), and the telescopic rod (21) is fixedly installed on the supporting back frame (22) on the upper side.

5. A portal crane anti-collision device according to claim 2, characterized in that: The side blocks (7) and the springs (8) are located at one end close to the limiting plate (18).

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