Anti-collision device for portal crane

Abstract

The utility model provides an anti-collision device for a portal crane, which relates to the technical field of anti-collision of hoisting equipment, and comprises a U-shaped frame which is butted with the surfaces of two ends of a walking beam and is matched with the walking beam in size, a buffer, a mounting plate and a plurality of fixing bolts which are symmetrically distributed and are in threaded connection with the interior of the walking beam are arranged on the U-shaped frame, and a mounting box is arranged on the mounting plate; the detection piece in the device does not directly collide and contact with the backstop, so that faults are not prone to occurring, meanwhile, the detection piece is arranged in a safe space which is not exposed in the external environment, the probability of poor stability and detection errors caused by the poor external environment can be reduced to the maximum extent, and the detection effect is accurate; the buffer 12 is in final contact with the backstop, so that damage caused by direct contact of the backstop with the crane can be avoided, and the damage probability of the crane is reduced to the minimum.

Description

Technical Field

[0001] This utility model relates to the field of anti-collision technology for lifting equipment, and more specifically, to an anti-collision device for bridge gantry cranes. Background Technology

[0002] The traveling mechanism of a bridge (gantry) crane runs longitudinally along tracks laid on both sides, making full use of the space under the crane to lift materials. It is not obstructed by ground equipment, has good applicability, and low site requirements. It is widely used in factories, construction sites, freight stations, docks, and other operating locations, and is the most widely used and numerous type of lifting machinery.

[0003] The traveling mechanism of existing bridge cranes is prone to hard collisions with the stops when moving along the track to both ends. Currently, two methods are generally used for detection to prevent damage to the crane caused by violent collisions: contact detection devices or non-contact detection devices. However, contact detection devices are collision-type structures, which makes the contact points easy to damage and has a high failure rate. Non-contact detection devices are easily affected by adverse weather conditions (heavy rain or relatively humid environments), resulting in detection deviations and unstable performance. In summary, the anti-collision effect of detection on both sides of bridge cranes needs to be further improved. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art, and then to propose an anti-collision device for bridge gantry cranes.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The anti-collision device for the bridge gantry crane includes two U-shaped frames that are respectively mated to the surfaces of both ends of the traveling beam and are of the same size. The U-shaped frames are equipped with a buffer, a mounting plate, and several fixing bolts that are threaded to the inside of the traveling beam. The mounting plate is equipped with a mounting box, and the mounting box is equipped with an observation window. The mounting box is equipped with non-contact detection components facing the observation window and the stops on both sides of the track.

[0007] The detection component in this device will not directly collide with the stop, thus reducing the likelihood of malfunction. At the same time, placing it in a safe space not exposed to the external environment can minimize the probability of poor stability and detection errors caused by unfavorable external conditions, resulting in accurate detection. The final contact between the buffer 12 and the stop can avoid damage caused by the stop directly contacting the crane, minimizing the probability of crane damage.

[0008] Furthermore, the U-shaped frame is symmetrically equipped with auxiliary braking components, which include a fixed box, a telescopic component, and a braking component. Fixed boxes with open bottoms are symmetrically arranged on both sides of the U-shaped frame. The fixed boxes are equipped with telescopic components that move synchronously. The telescopic components are connected to the braking component that contacts the ground area outside the track.

[0009] Furthermore, the braking component is provided with a friction layer or spikes.

[0010] In the above scheme, the auxiliary braking component can provide support during the installation of the U-shaped frame and the traveling beam, and at the same time provide double auxiliary braking after the traveling mechanism brakes to further improve the anti-collision effect.

[0011] Furthermore, the U-shaped frame is provided with several lifting lugs.

[0012] The above solution allows for convenient relocation of the device via lifting lugs.

[0013] Furthermore, side buffers are symmetrically arranged on both sides of the U-shaped frame.

[0014] The above solution can further buffer and protect both sides of the U-shaped frame through the side buffers, and can also reduce the probability of the auxiliary braking components being damaged by other unknown external collisions.

[0015] Furthermore, the mounting box is equipped with a side-opening door and has a heat insulation board inside.

[0016] The above solution allows for maintenance or replacement of electrical components inside the installation box via a side-opening door, while the thermal insulation board reduces the impact of excessively high or low external temperatures on the electrical components.

[0017] Furthermore, an electromagnet is provided on the upper inner wall of the U-shaped frame.

[0018] After the U-shaped frame and the traveling beam are fixed together at one end, the above solution can further improve the installation stability between the U-shaped frame and the traveling beam by controlling the electromagnet to be energized.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The detection component in this device will not directly collide with the stop, thus reducing the likelihood of malfunction. At the same time, placing it in a safe space not exposed to the external environment can minimize the probability of poor stability and detection errors caused by unfavorable external environments, resulting in accurate detection. The final contact between the buffer 12 and the stop can avoid damage caused by the stop directly contacting the crane, minimizing the probability of crane damage.

[0021] 2. This device can detect the minimum distance signal between the non-contact detection component and the stop and control the walking mechanism to brake, while also using an auxiliary braking component to further brake, thus improving safety and enhancing the anti-collision effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a diagram illustrating the installation of the mounting box;

[0024] Figure 3 This is a schematic diagram of the observation window;

[0025] Figure label:

[0026] 1. U-shaped frame; 11. Mounting plate; 12. Buffer; 13. Fixing bolt; 14. Lifting lug; 15. Side buffer; 16. Electromagnet; 2. Mounting box; 21. Observation window; 22. Non-contact detection component; 31. Fixing box; 32. Telescopic component; 33. Braking component; 34. Friction layer. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0028] like Figures 1 to 3 As shown, the anti-collision device for the bridge gantry crane includes two U-shaped frames 1 that are respectively mated to the surfaces of both ends of the traveling beam and are of compatible size. The traveling beam is not shown in the figure. The U-shaped frames 1 are provided with a buffer 12, a mounting plate 11, and a number of symmetrically distributed fixing bolts 13 that are threadedly connected to the inside of the traveling beam. The mounting plate 11 is provided with a mounting box 2. The mounting box 2 is provided with an observation window 21, and the mounting box 2 is provided with non-contact detection components facing the observation window 21 and the stops on both sides of the track. In this application, the non-contact detection components can be laser rangefinders or other distance detection components of the same principle.

[0029] Specifically, auxiliary braking components are symmetrically arranged on the U-shaped frame 1. The auxiliary braking components include a fixed box 31, a telescopic component 32, and a brake component 33. Fixed boxes 31 with open bottoms are symmetrically arranged on both sides of the U-shaped frame 1. The telescopic component 32 moves synchronously inside the fixed box 31. The telescopic component 32 is connected to the brake component 33, which contacts the ground area outside the track. The telescopic component 32 is either a cylinder or an electric push rod.

[0030] Further optimizations of the above-described embodiments, such as... Figure 1 As shown, the brake element 33 is provided with a friction layer 34 or spikes, as indicated in the instruction manual. Figure 1 The diagram shows the friction layer 34.

[0031] Further refinements of the embodiments of this utility model, such as... Figure 2 As shown, the U-shaped frame 1 is provided with several lifting lugs 14.

[0032] It should be noted that the non-contact detection component and the telescopic component 32 are electrically connected to the controller. The controller is not shown in the figure, but it can be installed on one of the U-shaped frames 1.

[0033] The working process of this utility model is as follows:

[0034] First, connect a U-shaped frame 1 to one end of the traveling beam. After the connection is completed, the two are in close contact. Then, the U-shaped frame 1 is installed and fixed on the traveling beam by several fixing bolts 13. Before fixing, the telescopic member 32 can drive the brake member 33 to contact the ground in the outer area of ​​the traveling mechanism's movement track, thereby supporting the U-shaped frame 1. The track is not shown in the figure. After completing the installation of one U-shaped frame 1, go to the other end of the traveling beam and install another U-shaped frame 1.

[0035] After the installation of the U-shaped frames 1 at both ends of the traveling beam is completed, the controller controls the telescopic component 32 to work, thereby driving the brake component 33 to rise and not contact the ground outside the track area. Then the controller controls the non-contact detection component to work, and at the same time, the gantry crane begins to transfer goods. During the operation of the crane, when the traveling beam is about to reach the stops on both sides of the track, the laser rangefinder can detect the change in distance range. When the distance reaches the preset distance range, the non-contact detection component immediately feeds back a signal to the controller, and the controller controls the traveling mechanism to brake. At the same time, the controller controls the telescopic component 32 to work again, thereby driving the brake component 33 to descend and contact the ground area outside the track. Then, a secondary braking can be assisted while the traveling mechanism is braking, which can effectively reduce the operating speed of the crane. Finally, the buffer 12 will make slight contact with the stop on one side, so that the crane will not collide hard with the stop, and the anti-collision effect is significantly improved.

[0036] It is important to note that for first-time use, zero-point calibration must be performed after the transparent window is installed to eliminate the effects of medium refraction. At the same time, the surface of the observation window should be wiped regularly to prevent stains or scratches from causing laser scattering.

[0037] Compared to existing technologies, the detection component in this device will not directly collide with the stop, thus reducing the likelihood of malfunctions. Furthermore, placing it in a safe space away from the external environment minimizes the probability of instability and detection errors caused by unfavorable external conditions, resulting in accurate detection. The final contact between the buffer 12 and the stop avoids damage caused by direct contact between the stop and the crane, minimizing the probability of crane damage.

[0038] In addition, while the non-contact detection device detects the minimum distance signal between itself and the stop and controls the braking of the walking mechanism, it can also further brake through the auxiliary braking component, thereby improving safety and enhancing the anti-collision effect.

[0039] In some embodiments, such as Figure 2 As shown, side buffers 15 are symmetrically arranged on both sides of the U-shaped frame 1. In this embodiment, the side buffers 15 can further buffer and protect both sides of the U-shaped frame 1, and also reduce the probability of the auxiliary braking component being damaged by other unknown collisions.

[0040] In other embodiments, the mounting box 2 is provided with a side-opening door and an insulation board is provided inside the mounting box 2. This embodiment is not shown in the figure. The side-opening door allows for maintenance or replacement of the electrical components inside the mounting box 2. At the same time, the insulation board can reduce the impact of excessively high or low external temperatures on the electrical components. It should be noted that the mounting box 2 is provided with vents that allow heat from the electrical components to dissipate outwards. The vents are provided with waterproof and breathable molds. By adjusting the moisture permeability, the humid air can be partially blocked, and thus the impact of humid air on the non-contact testing components can be ignored.

[0041] In other embodiments, such as Figure 2 As shown, an electromagnet 16 is provided on the upper inner wall of the U-shaped frame 1; in this embodiment, after the U-shaped frame 1 and one end of the traveling beam are fixed together, controlling the electromagnet 16 to be energized can further improve the installation firmness between the U-shaped frame 1 and the traveling beam.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A collision avoidance device for a bridge gantry crane, characterized in that, It includes two U-shaped frames (1) that are respectively mated to the surfaces of both ends of the traveling beam and are of the same size. The U-shaped frames (1) are equipped with a buffer (12), a mounting plate (11) and several symmetrically distributed fixing bolts (13) that are threaded to the inside of the traveling beam. The mounting plate (11) is equipped with a mounting box (2). The mounting box (2) is equipped with an observation window (21) and non-contact detection components (22) facing the observation window (21) and the stops on both sides of the track are installed inside the mounting box (2).

2. The anti-collision device for a bridge gantry crane according to claim 1, characterized in that, The U-shaped frame is symmetrically provided with auxiliary braking components, which include a fixed box (31), a telescopic component (32), and a brake component (33). The U-shaped frame (1) is symmetrically provided with a fixed box (31) with an open bottom on both sides. The fixed box (31) is provided with a telescopic component (32) that moves synchronously. The telescopic component (32) is connected to a brake component (33) that contacts the ground area outside the track.

3. The anti-collision device for a bridge gantry crane according to claim 2, characterized in that, The braking element (33) is provided with a friction layer (34) or a spike.

4. The anti-collision device for a bridge gantry crane according to claim 1, characterized in that, The U-shaped frame (1) is provided with several lifting lugs (14).

5. The anti-collision device for a bridge gantry crane according to claim 1, characterized in that, Side buffers (15) are symmetrically arranged on both sides of the U-shaped frame (1).

6. The anti-collision device for a bridge gantry crane according to claim 1, characterized in that, The installation box (2) is equipped with a side door and the interior of the installation box (2) is equipped with a heat insulation board.

7. The anti-collision device for a bridge gantry crane according to claim 1, characterized in that, An electromagnet (16) is provided on the upper inner wall of the U-shaped frame (1).

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