Portal crane convenient to fix

Abstract

The utility model discloses a portal crane convenient to fix, and relates to the technical field of hoisting equipment. The portal crane convenient to fix comprises a main beam, supports are fixedly installed at the two ends of the bottom of the main beam, four supporting seats are fixedly installed at the bottoms of the supports, fixing frames are fixedly installed on the lower surfaces of the four supporting seats, tires are rotationally connected to the inner sides of the four fixing frames, and a crane carriage is slidably connected to the main beam; a mooring rope is slidably connected to the center of the bottom of the hoisting trolley, a windproof device is arranged below the hoisting trolley, when the mooring rope ascends, the limiting columns drive the square frame to slide upwards, the calipers drive the cargo box to ascend, and the limiting frames can prevent the cargo box from being blown by strong wind in the transportation process, so that the situation that the mooring rope swings and shakes, and the transportation stability cannot be kept is avoided; the safety in the carrying process is improved, the calipers slide to clamp the cargo box, and the cargo box is prevented from sliding or falling off in the midway to cause danger to surrounding workers and other equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment technical field, especially a portal crane convenient to fix. BACKGROUND

[0002] The portal crane is also called a gantry crane, which is a bridge type crane. The bridge is horizontally arranged on two legs to form a portal shape. The bridge is supported by the two legs to run on the ground track. This crane is particularly suitable for open storage yard, dock, power station, port and railway freight station for handling and installation operations.

[0003] When handling iron square box goods in the port, the portal crane drives the steel cable to lift through the driving device inside the hoisting trolley, and lifts and transports the object through the hook. However, due to the large wind speed in the port, the strong wind has a certain influence on the heavy object hoisted and transported, blows the transported object, causes the cable to swing and shake, cannot keep the stability of transportation, causes the goods box to slide or fall in the middle of the way, not only causes the goods loss, but also brings great safety hazards to the surrounding workers and equipment. Therefore, a portal crane convenient to fix is proposed to solve the above problems. SUMMARY

[0004] The utility model discloses a portal crane convenient to fix, which can solve the problem that when there is strong wind, the transported object is blown, the cable swings and shakes, the stability of transportation cannot be kept, the goods box slides or falls in the middle of the way, the goods are lost, and great safety hazards are brought to the surrounding workers and equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a portal crane convenient to fix, comprising a main beam, two ends of the bottom of the main beam are fixedly installed with supports, the bottoms of the supports are fixedly installed with four supports, the lower surfaces of the four supports are fixedly installed with fixed frames, the inner sides of the four fixed frames are rotatably connected with tires, a hoisting trolley is slidably connected to the main beam, and a cable is slidably connected to the bottom center of the hoisting trolley.

[0006] The bottom of the support is provided with an anti-skid device, and the lower side of the hoisting trolley is provided with a windproof device.

[0007] The windproof device comprises a square frame, the square frame is fixedly connected to the bottom of the cable, the front and rear ends of the square frame are fixedly connected with limiting columns, the bottom of the square frame is fixedly connected with a supporting plate, the bottom of the hoisting trolley is fixedly connected with two limiting frames, and the limiting frames are slidably connected with the limiting columns.

[0008] Preferably, the windproof device further comprises two motors symmetrically fixedly connected to the interior of the square frame, and the output ends of the two motors are fixedly connected with rotating shafts, the outer surfaces of the two rotating shafts are slidably sleeved with moving blocks, and the ends of the two moving blocks away from the motors are fixedly connected with clamps.

[0009] Preferably, the output ends of the two motors are rotatably sleeved with fixed plates, the fixed plates are rotatably sleeved with the rotating shafts, the lower ends of the fixed plates are fixedly connected with the square frame, and the ends of the two fixed plates away from the motors are fixedly connected with fixed frames, and the two fixed frames are slidably connected with the moving blocks.

[0010] Preferably, the cable is a steel wire rope, and large goods can be lifted.

[0011] Preferably, the support plate is slidably connected with the limiting frame.

[0012] Preferably, the clamps and the support plate are both provided with magnetite, and can attract iron goods.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1), this convenient to fix gantry crane, when the cable rises, the limiting post takes the square frame in the groove of the limiting frame and slides upwards, so that the clamp takes the goods box to rise to the highest place, the limiting frame can avoid the goods box being blown by the strong wind in the transportation process, causes the cable to swing, shakes, cannot keep the stability of transportation.

[0015] (2), this convenient to fix gantry crane makes the moving block drive the clamp to slide along the direction away from the cable, until the clamp slides to the size of the goods box, so that the clamp bottom of the goods box is tightly attached, avoids the goods box to slide or fall off in the middle of the way, causes the danger to the surrounding staff and other equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further explained in connection with the drawings and examples as follows:

[0017] Fig. 1 It is a schematic view of a convenient-to-fix gantry crane of the utility model;

[0018] Fig. 2 It is a limiting structure schematic view of a convenient-to-fix gantry crane of the utility model;

[0019] Fig. 3 It is a lifting structure schematic view of a convenient-to-fix gantry crane of the utility model.

[0020] 1, main beam; 2, support; 3, lifting trolley; 4, support; 5, tire; 6, fixed frame; 7, limiting frame; 8, cable; 9, limiting column; 10, square frame; 11, support plate; 12, motor; 13, fixed plate; 14, rotating shaft; 15, moving block; 16, caliper; 17, fixed frame. DETAILED DESCRIPTION

[0021] This part will describe the specific embodiments of the utility model in detail, the preferred embodiment of the utility model is shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like based on the orientation or position relationship shown in the drawings, is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model.

[0023] In the description of the utility model, greater than, less than, more than and the like are understood as not including the number, above, below and the like are understood as including the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0024] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0025] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a door crane of being convenient for fixed, including main beam 1, the bottom of main beam 1 Both ends are fixedly installed with support 2, the bottom of support 2 It is fixedly installed with four supports 4, the lower surface of four supports 4 It is fixedly installed with fixed frame 6, the inner side of four fixed frames 6 It is rotatably connected with tire 5, main beam 1 It is slidably connected with lifting trolley 3, the structure of lifting trolley 3 It includes double-head motor, drive box, clamping wheel, the working principle of lifting trolley 3 It is slidably connected with cable 8 in the center of bottom, and the operating relationship between structure is the prior art in public patent: double-beam portal crane CN220664711 U, here is not described repeatedly, the bottom of lifting trolley 3 It is slidably connected with cable 8;

[0026] The windproof device is arranged below the hoist trolley 3.

[0027] Further, the windproof device comprises a square frame 10 fixedly connected at the bottom of the cable 8, the front and rear ends of the square frame 10 are fixedly connected with limiting columns 9, the bottom of the square frame 10 is fixedly connected with a support plate 11, the bottom of the hoist trolley 3 is fixedly connected with two limiting racks 7, the limiting racks 7 are slidingly connected with the limiting columns 9, the inside of the square frame 10 is symmetrically fixedly connected with two motors 12, the output ends of the two motors 12 are fixedly connected with rotating shafts 14, the outer surfaces of the two rotating shafts 14 are slidingly sleeved with moving blocks 15, one ends of the two moving blocks 15 away from the motors 12 are fixedly connected with clamps 16.

[0028] Further, the windproof device comprises a square frame 10 fixedly connected at the bottom of the cable 8, the front and rear ends of the square frame 10 are fixedly connected with limiting columns 9, the bottom of the square frame 10 is fixedly connected with a support plate 11, the bottom of the hoist trolley 3 is fixedly connected with two limiting racks 7, the limiting racks 7 are slidingly connected with the limiting columns 9, the inside of the square frame 10 is symmetrically fixedly connected with two motors 12, the output ends of the two motors 12 are fixedly connected with rotating shafts 14, the outer surfaces of the two rotating shafts 14 are slidingly sleeved with moving blocks 15, one ends of the two moving blocks 15 away from the motors 12 are fixedly connected with clamps 16.

[0029] Further, in the use of the device, first, the hoist trolley 3 is started, so that the hoist trolley 3 slides on the main beam 1 to the position directly above the goods box, then the cable 8 is controlled to descend by the drive box of the hoist trolley 3, the cable 8 with the limiting column 9 slides downward in the groove of the limiting rack 7 to the position of the goods box to be carried, the motor 12 is started, the output end of the motor 12 drives the rotating shaft 14 to rotate, the rotating shaft 14 drives the moving block 15 to slide and displace under the limiting of the fixed frame 17, one end of the moving block 15 drives the clamp 16 to move, so that the moving block 15 drives the clamp 16 to slide in the direction away from the cable 8, until the clamp 16 slides to the size that can clamp the goods box, so that the bottom of the clamp 16 tightly abuts against the goods box, avoiding the goods box from sliding or falling off in the middle of the way, causing danger to the surrounding workers and other equipment.

[0030] The cable 8 is controlled to ascend, the limiting column 9 with the square frame 10 slides upward in the groove of the limiting rack 7, so that the clamp 16 with the goods box ascends to the highest position, the limiting rack 7 can avoid the goods box from being blown by the strong wind in the transportation process, causing the cable 8 to swing and shake, and unable to maintain the stability of the transportation, then the tire 5 is controlled to move on the ground to the unloading position.

[0031] Working principle: firstly, start the trolley 3, so that the trolley 3 on the main beam 1 slide to the goods box directly above, then, by the drive box control cable 8 of trolley 3 down, cable 8 with the limit column 9 in the slot of limit frame 7 down to the place of the goods box to be transported, start motor 12, the output end of motor 12 drives rotating shaft 14 rotation, rotating shaft 14 in the limit of fixed frame 17 drive moving block 15 to slide displacement, one end of moving block 15 drive calliper 16 to move, so that moving block 15 drive calliper 16 along the direction away from cable 8 slide, until calliper 16 slide to the size of goods box can be clamped;

[0032] Control cable 8 up, limit column 9 with the square frame 10 in the slot of limit frame 7 up to make calliper 16 with goods box up to the highest, then, control tire 5 on the ground to the unloading place.

[0033] The above embodiment of the present application is described in detail in combination with the drawings, but the present application is not limited to the above embodiment, and various changes can be made within the knowledge possessed by those skilled in the art in the technical field without departing from the spirit of the present application.

Claims

1. A gantry crane that is easy to fix, comprising a main beam (1), characterized in that: The main beam (1) has brackets (2) fixedly installed at both ends of the bottom. The brackets (2) have four supports (4) fixedly installed at the bottom. The lower surfaces of the four supports (4) are fixedly installed with fixed frames (6). The inner sides of the four fixed frames (6) are rotatably connected with tires (5). The main beam (1) is slidably connected with a crane trolley (3). The bottom center of the crane trolley (3) is slidably connected with a cable (8). Among them, a windproof device is installed under the crane trolley (3); The windproof device includes a square frame (10), which is fixedly connected to the bottom of the cable (8). Limiting posts (9) are fixedly connected to the front and rear ends of the square frame (10). A support plate (11) is fixedly connected to the bottom of the square frame (10). Two limiting frames (7) are fixedly connected to the bottom of the crane trolley (3). The limiting frames (7) are slidably connected to the limiting posts (9).

2. A gantry crane that is easy to fix according to claim 1, characterized in that: The windproof device also includes a motor (12). Two motors (12) are symmetrically fixedly connected inside the square frame (10). The output ends of the two motors (12) are fixedly connected to a rotating shaft (14). The outer surfaces of the two rotating shafts (14) are slidably fitted with moving blocks (15). The ends of the two moving blocks (15) away from the motors (12) are fixedly connected to a clamp (16).

3. A gantry crane that is easy to fix according to claim 2, characterized in that: The output ends of the two motors (12) are rotatably sleeved with fixed plates (13), the fixed plates (13) are rotatably sleeved with the rotating shaft (14), the lower end of the fixed plates (13) is fixedly connected to the square frame (10), and the ends of the two fixed plates (13) away from the motors (12) are fixedly connected with fixed frames (17), and the two fixed frames (17) are slidably connected to the moving block (15).

4. A gantry crane that is easy to fix according to claim 1, characterized in that: The cable (8) is a steel wire rope that can lift large cargo.

5. A gantry crane that is easy to fix according to claim 1, characterized in that: The support plate (11) is slidably connected to the limiting frame (7).

6. A gantry crane that is easy to fix according to claim 2, characterized in that: Both the caliper (16) and the support plate (11) are equipped with magnets that can hold iron goods.

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