Bridge crane lifting appliance with single-double box detection function

Abstract

The utility model discloses a bridge crane lifting appliance with single-double box detection, which comprises a lifting appliance main body and two lifting frames arranged on two sides of the lifting appliance main body, the upper end of the lifting appliance main body is rotatably connected with a rotating column, and the rotating column is driven by a driving assembly to rotate. A first gear and a second gear which coaxially rotate with the rotating column are arranged on the side wall of the rotating column in a sleeving manner up and down, a connecting assembly meshed with the first gear and the second gear is arranged on the lifting appliance main body, and a plurality of detection assemblies are mounted on the connecting assembly. The lifting appliance has the advantages that the lifting appliance can be stably installed on lifting equipment, when a container is lifted, the multiple laser range finders can conduct measurement on the periphery of the lifting appliance body, the container can be lifted after single-container and double-container detection, lifting work is facilitated, the multiple laser range finders can be recycled to the position above the lifting appliance body, and the lifting appliance is convenient to use. And the hoisting work is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge crane spreaders, in particular to a bridge crane spreader with single and double container detection functions. Background Art

[0002] There is a large amount of container flow in places such as docks and warehouses every day. There are also many containers stacked within the site area, and there are a large number of empty containers. Generally, bridge crane spreaders are used to carry out the handling work of containers. When placing more empty containers into the site, vehicles such as stackers are used for the handling work. There is no good view during the placement process, and it is easy to squeeze together. The cab of the bridge crane spreader is at a high altitude. When the staff is carrying out the handling work, the viewing angle of the container is insufficient. When containers of different lengths are placed together, the staff cannot judge the status and quantity of the containers, which is inconvenient for handling.

[0003] When the bridge crane driver operates the spreader in daily work, he will operate the spreader to perform the hoisting action of two 20-foot containers in the state of a 40-foot single container. It is easy to cause accidents such as container damage, machine damage and ship damage due to the falling off of the container. In order to avoid such accidents, it is necessary to add a single and double container detection device to the spreader to ensure the safety during the hoisting process. Therefore, we designed a bridge crane spreader with single and double container detection to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a bridge crane spreader with single and double container detection functions.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A bridge crane spreader with single and double container detection functions includes a spreader main body and two hanging brackets arranged on both sides of the spreader main body. A rotating column is rotatably connected to the upper end of the spreader main body. The rotating column is driven to rotate by a driving component. A first gear and a second gear that rotate coaxially with the rotating column are sleeved on the side wall of the rotating column up and down. A connecting component that meshes with the first gear and the second gear is arranged on the spreader main body. A plurality of detection components are installed on the connecting component. The connecting component drives the plurality of detection components to move towards the four sides of the spreader main body respectively. Two installation components are arranged in front and behind the upper ends of both hanging brackets, and two twist locks are installed in front and behind the bottoms of both hanging brackets.

[0007] In order to better achieve the above purpose, the utility model adopts a further technical scheme: the driving component includes a servo motor installed at the upper end of the spreader main body, and a transmission belt is wound between the output shaft of the servo motor and the rotating column.

[0008] To better achieve the above object, the utility model adopts the following further technical solution: The connecting assembly includes two first rack plates that are slidably connected to the upper end of the spreader main body in the front and rear directions. The two first rack plates are respectively located on the left and right sides of the first gear and are both engaged with the first gear. The upper end of the spreader main body is slidably connected with two second rack plates in the left and right directions. The two second rack plates are respectively located on the front and rear sides of the second gear and are both engaged with the second gear. A plurality of detection components are respectively installed at opposite ends of the two first rack plates and opposite ends of the two second rack plates. The upper end of the spreader main body is provided with a plurality of guiding sliding grooves, and a guiding slider adapted to each of the plurality of guiding sliding grooves is slidably connected therein. The two first rack plates and the two second rack plates are respectively fixedly connected to the upper ends of the corresponding guiding sliders. The detection component includes an L-shaped plate installed at the upper end of the first rack plate, and a laser rangefinder is installed at the bottom of the L-shaped plate.

[0009] To better achieve the above object, the utility model adopts the following further technical solution: The installation assembly includes an installation block welded to the upper end of the hanging frame. An installation groove is provided at the upper end of the installation block, and an installation hole is vertically penetrated through the installation block.

[0010] The advantages of the utility model are as follows: The connecting block on the lifting device extends into the installation block and can be fixed by cooperating with the bolt and the installation hole, so that the spreader can be stably installed on the lifting device to complete the installation of the spreader. When lifting a container, the two first rack plates respectively drive the two laser rangefinders at their upper ends to move towards the front and rear sides of the spreader main body, and the two second rack plates respectively drive the two laser rangefinders at their upper ends to move towards the left and right sides of the spreader main body. Thus, a plurality of laser rangefinders can detect around the spreader main body to ensure the detection accuracy, and can lift the container after single or double container detection. Moreover, the plurality of laser rangefinders can be retracted above the spreader main body to avoid affecting the lifting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a first perspective three-dimensional structure schematic diagram of a gantry crane spreader with single and double container detection proposed by the utility model;

[0012] Figure 2 is a second perspective three-dimensional structure schematic diagram of a gantry crane spreader with single and double container detection proposed by the utility model;

[0013] Figure 3 is Figure 2 an enlarged view of the structure at A in

[0014] Figure 4 is a connection schematic diagram of the spreader main body, the guiding sliding groove, and the guiding slider.

[0015] In the figure: 1. sling main body; 2. hanger; 3. rotating column; 4. first gear; 5. first rack plate; 6. second gear; 7. second rack plate; 8. L-shaped plate; 9. laser rangefinder; 10. servo motor; 11. transmission belt; 12. mounting block; 13. mounting hole; 14. twist lock. Specific implementation mode

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] Refer to Figures 1-4 As shown, a gantry crane sling with single and double container detection includes a sling main body 1 and two hangers 2 arranged on both sides of the sling main body 1. A rotating column 3 is rotatably connected to the upper end of the sling main body 1. The rotating column 3 is driven to rotate by a driving assembly. The driving assembly includes a servo motor 10 installed at the upper end of the sling main body 1. A transmission belt 11 is wound between the output shaft of the servo motor 10 and the rotating column 3. Under the connection action of the transmission belt 11, the rotating column 3 can rotate synchronously with the output shaft of the servo motor 10; a first gear 4 and a second gear 6 that rotate coaxially with it are sleeved up and down on the side wall of the rotating column 3. A connection assembly meshing with the first gear 4 and the second gear 6 is provided on the sling main body 1. The connection assembly includes two first rack plates 5 that slide back and forth on the upper end of the sling main body 1. The two first rack plates 5 are respectively located on the left and right sides of the first gear 4 and both mesh with the first gear 4. When the first gear 4 rotates, under its meshing action, the two first rack plates 5 can move towards the front and rear sides of the sling main body 1 respectively. Two second rack plates 7 are slidably connected left and right on the upper end of the sling main body 1. The two second rack plates 7 are respectively located on the front and rear sides of the second gear 6 and both mesh with the second gear 6. When the second gear 6 rotates, under its meshing action, the two second rack plates 7 can move towards the left and right sides of the sling main body 1 respectively; a plurality of guide chutes are opened at the upper end of the sling main body 1. A plurality of guide sliders adapted to them are slidably connected in the plurality of guide chutes. The two first rack plates 5 and the two second rack plates 7 are respectively fixedly connected to the upper ends of the corresponding guide sliders. The guide sliders slide in the guide chutes, which can play a guiding role for the first rack plates 5 and the second rack plates 7, so that they can move stably; a plurality of detection components are installed on the connection assembly. The connection assembly drives the plurality of detection components to move towards the four sides of the sling main body 1 respectively. The plurality of detection components are respectively installed at the opposite ends of the two first rack plates 5 and the opposite ends of the two second rack plates 7. The detection component includes an L-shaped plate 8 installed at the upper end of the first rack plate 5. A laser rangefinder 9 is installed at the bottom of the L-shaped plate 8. The laser rangefinder 9 can measure the distance from the container, and thus can detect whether the container is a single container or a double container.

[0018] At the upper ends of both of the two hanging brackets 2, there are two mounting components provided before and after. The mounting components include mounting blocks 12 welded to the upper ends of the hanging brackets 2. An installation groove is formed at the upper end of the mounting block 12, and a mounting hole 13 is formed through the mounting block 12 from front to back. The connecting block on the lifting device extends into the mounting block 12, and by passing a bolt through the mounting hole 13, the connecting block on the lifting device can be stably mounted on the mounting block 12, and thus the lifting tool can be mounted on the lifting device. At the bottom of both of the two hanging brackets 2, two twist locks 14 are mounted before and after. The twist lock 14 is a prior art. The twist lock 14 extends into the lifting hole on the container and rotates 90 degrees, and can be locked with the lifting hole on the container, and thus the container can be lifted.

[0019] When the utility model is in use, the connecting block on the lifting device extends into the mounting block 12 and is fixed by bolts, so that the lifting tool can be stably mounted on the lifting device to complete the installation of the lifting tool. When lifting a container, the lifting tool body 1 moves above the container to be lifted. During this process, the servo motor 10 is started. Under the connection of the transmission belt 11, the rotating column 3 can be rotated. The first gear 4 and the second gear 6 rotate together with the rotating column 3. Under their meshing action, the two first rack plates 5 can respectively drive the two laser rangefinders 9 at their upper ends to move towards the front and back sides of the lifting tool body 1, and the two second rack plates 7 can respectively drive the two laser rangefinders 9 at their upper ends to move towards the left and right sides of the lifting tool body 1. Thus, multiple laser rangefinders 9 can measure around the lifting tool body 1. The laser rangefinder 9 can measure the distance from the upper end of the container. If the value of the laser rangefinder 9 basically remains unchanged, it is a single container. If the value of the laser distance measurement changes greatly, the measurement position is the gap between two containers, that is, the container here is a double-container. Thus, it is beneficial to lift the container after detection. After the detection is completed, the servo motor 10 drives the rotating column 3 to rotate in the reverse direction, and thus the first rack plate 5 and the second rack plate 7 can drive multiple laser rangefinders 9 to retract above the lifting tool body 1 to avoid affecting the lifting work.

Claims

1. A bridge crane with single and double box detection, comprising a crane body (1) and two hangers (2) arranged on both sides of the crane body (1), characterized in that: The upper end of the sling body (1) is rotatably connected to a rotating column (3), and the rotating column (3) is driven to rotate by a driving component. The side walls of the rotating column (3) are sleeved with a first gear (4) and a second gear (6) coaxially rotating therewith. The sling body (1) is provided with a connecting component meshing with the first gear (4) and the second gear (6). A plurality of detection components are installed on the connecting component, and the connecting component drives the plurality of detection components to move around the sling body (1). The upper ends of the two hangers (2) are each provided with two mounting components at the front and rear, and the bottoms of the two hangers (2) are each provided with two twist locks (14) at the front and rear.

2. A bridge crane with single and double box detection according to claim 1, characterized in that: The driving assembly comprises a servo motor (10) mounted on the upper end of the sling body (1), and a transmission belt (11) is wound between the output shaft of the servo motor (10) and the rotating column (3).

3. A bridge crane with single and double box detection according to claim 2, characterized in that: The connecting assembly comprises two first rack plates (5) slidably connected to the upper end of the sling body (1) in a forward and backward manner, the two first rack plates (5) are respectively located on the left and right sides of the first gear (4) and are meshed with the first gear (4), the upper end of the sling body (1) is slidably connected to two second rack plates (7) in a forward and backward manner, the two second rack plates (7) are respectively located on the front and rear sides of the second gear (6) and are meshed with the second gear (6), a plurality of the detection assemblies are respectively mounted on opposite ends of the two first rack plates (5) and opposite ends of the two second rack plates (7), a plurality of guide slots are provided on the upper end of the sling body (1), guide slide blocks corresponding thereto are slidably connected in the plurality of guide slots, the two first rack plates (5) and the two second rack plates (7) are respectively fixedly connected to the upper ends of the corresponding guide slide blocks, the detection assembly comprises an L-shaped plate (8) mounted on the upper end of the first rack plate (5), a laser rangefinder (9) is mounted on the bottom of the L-shaped plate (8).

4. The bridge crane with single and double box detection according to claim 1 is characterized in that: The mounting assembly comprises a mounting block (12) welded to the upper end of the hanger (2), a mounting groove being provided at the upper end of the mounting block (12), and mounting holes (13) being provided through the mounting block (12) from front to back.

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