CN220485142U

CN220485142U - Portal crane with prevent structure of toppling

Info

Publication number: CN220485142U
Application number: CN202321231964.8U
Authority: CN
Inventors: 王润铧; 王鹏阁; 谢海建; 杜帅恒; 李梦瑶; 罗丹
Original assignee: Kerun Electro Mechanical Engineering Co ltd
Current assignee: Kerun Electro Mechanical Engineering Co ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2024-02-13
Anticipated expiration: 2033-05-17

Abstract

The utility model relates to the technical field of portal cranes, in particular to a portal crane with an anti-overturning structure. The novel lifting device comprises a main beam, a pair of guide rails are fixedly connected to the top end of the main beam, an electric trolley is slidably connected between the two guide rails, a winding mechanism is arranged in a cavity, a connecting plate is arranged at the bottom end of the electric trolley, a bearing rope is fixedly connected to the bottom end of the connecting plate, a first hook is fixedly connected to the bottom end of the bearing rope, a pair of mounting grooves are formed in the lower surface of the connecting plate, a second rotating shaft is rotationally connected to the mounting grooves, traction ropes are respectively wound on two sides of the side wall of the second rotating shaft, one end of each traction rope is fixedly connected with the second rotating shaft, a pair of second motors are arranged on the front side of the connecting plate, and the problem that the ordinary portal crane easily shakes when lifting cargoes is solved.

Description

Portal crane with prevent structure of toppling

Technical Field

The utility model relates to the technical field of portal cranes, in particular to a portal crane with an anti-overturning structure.

Background

The portal crane is a deformation of bridge crane, also called portal crane, and is mainly used for loading and unloading operations of outdoor goods yard, stock yard goods and bulk goods, and has the characteristics of high field utilization rate, large operation range, wide application range, strong universality and the like, and is widely used in port goods yards.

In the gantry crane in the prior art, when the cargo is lifted, the cargo is easy to shake due to the influence of ports and outdoor environments (such as gusts), if the swing amplitude is large, the lifting is unstable, and the potential safety hazard of lifting exists.

The publication No. CN218145478U discloses a portal crane with an anti-overturning structure, which comprises a rolling mechanism, wherein the rolling mechanism slides on a main beam through a second travelling mechanism, the lower end of the rolling mechanism is connected with a main hook through a steel wire rope, limit devices positioned at two sides of the main hook are arranged on the side surface of the main beam, first travelling mechanisms which run on a first guide rail are arranged at two sides of the bottom of the main beam, and second brackets are respectively arranged at two ends of the main beam; the two opposite sides of the second support are respectively provided with a support frame parallel to the first guide rail, and the bottom of the support frame is provided with a driven wheel. According to the utility model, the support frame and the driven wheel are arranged, the front side and the rear side of the crane are obliquely supported by the support frame when the crane works in open air in a port, meanwhile, the driven wheel is used as the auxiliary wheel, so that the sliding efficiency is not affected, in the process of loading cargoes, the two groups of limiting plates can be driven by the operation of the two groups of electric cylinders to clamp and fix the cargoes with flat end surfaces, and the cargoes can be effectively prevented from shaking and falling.

In the device, though the goods can be clamped and fixed to avoid shaking, after the goods are clamped and fixed by the electric cylinder and the limiting plate, the goods cannot move up and down along with the electric cylinder, and the device has certain limitation in use.

Disclosure of Invention

The utility model aims to provide a portal crane with an anti-overturning structure, so as to solve the problems in the background art.

In order to achieve the above purpose, the utility model provides a portal crane with an anti-overturning structure, which comprises a main beam, wherein a through groove is formed in the top end of the main beam, a pair of guide rails are fixedly connected to the top end of the main beam, an electric trolley is connected between the two guide rails in a sliding manner, a cavity is formed in the upper surface of the electric trolley in a penetrating manner, a winding mechanism is arranged in the cavity, a connecting plate is arranged at the bottom end of the electric trolley, a bearing rope is fixedly connected to the bottom end of the connecting plate, a first hook is fixedly connected to the bottom end of the bearing rope, a pair of mounting grooves are formed in the lower surface of the connecting plate, the two mounting grooves are positioned on the left side and the right side of the bearing rope, a second rotating shaft is rotationally connected to the two mounting grooves, traction ropes are respectively wound on two sides of the side wall of the second rotating shaft, one end of the traction rope is fixedly connected with the second rotating shaft, a second hook is fixedly connected to the other end of the traction rope, a pair of second motors are mounted on the front side of the connecting plate, and an output shaft of the second motor extends to be coaxially connected with the second rotating shaft.

As a further improvement of the technical scheme, the winding mechanism at least comprises a first motor, the first motor is fixedly connected with the left end of the electric trolley, a first rotating shaft is rotationally connected with the cavity, an output shaft of the first motor extends to be coaxially connected with the first rotating shaft, a cable is wound on the side wall of the first rotating shaft, one end of the cable is fixedly connected with the first rotating shaft, and the other end of the cable is fixedly connected with the connecting plate.

As a further improvement of the technical scheme, a partition plate is fixedly connected in the mounting groove and positioned between the two traction ropes, and a rotating groove which is rotationally connected with the second rotating shaft is formed in the partition plate.

As a further improvement of the technical scheme, a group of limiting blocks are symmetrically and fixedly connected to the bottom end of the electric trolley, and two groups of opposite ends of the limiting blocks are in sliding connection with the main beam.

As a further improvement of the technical scheme, the two sides of the bottom end of the main beam are fixedly connected with supporting blocks, the bottom ends of the supporting blocks are symmetrically and fixedly connected with supporting columns, a bottom plate is fixedly connected between the bottom ends of the supporting columns, and the bottom plate is slidably connected with a sliding rail.

As a further improvement of the technical scheme, the bottom of the bottom plate is provided with a groove, a plurality of connecting shafts are rotationally connected to the groove, the side walls of the connecting shafts are coaxially connected with pulleys, one end of each connecting shaft extends to the outer side of the bottom plate, two opposite ends of the bottom plate are provided with third motors, an output shaft of each third motor is coaxially connected with one connecting shaft, a plurality of connecting shafts are in transmission through a transmission belt, and sliding grooves are formed in the top ends of sliding rails and are in sliding connection with the sliding grooves.

Compared with the prior art, the utility model has the beneficial effects that:

in this gantry crane with prevent structure of overturning, through second motor, second pivot and haulage rope that sets up, through starting winding mechanism, remove the connecting plate to the top of goods, be connected first couple and goods center, start the second motor, its output shaft drives the second pivot and rotates, thereby drive two haulage ropes and release, adjust the appropriate length of haulage rope according to the object size, then be connected second couple and goods four corners department, thereby keep the balance of goods, the device has avoided appearing rocking the condition to appear after the goods lifts by crane, thereby influence and lift by crane efficiency.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the electric cart according to the present utility model;

FIG. 3 is a schematic view of a connecting plate structure according to the present utility model;

fig. 4 is a schematic view of the structure of the base plate of the present utility model.

The meaning of each reference sign in the figure is:

1. a main beam; 10. a through groove; 11. a guide rail; 12. a support block; 13. a support column;

2. an electric cart; 20. a cavity; 21. a first rotating shaft; 22. a cable; 23. a first motor; 24. a limiting block;

3. a connecting plate; 30. a load-bearing rope; 31. a first hook; 32. a mounting groove; 33. a second rotating shaft; 34. a traction rope; 35. a second motor; 36. a second hook; 37. a partition plate; 38. a rotary groove;

4. a bottom plate; 40. a groove; 41. a pulley; 42. a connecting shaft; 43. a third motor; 44. a drive belt;

5. a slide rail; 50. and a sliding groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the embodiment provides a gantry crane with an anti-overturning structure, which comprises a main beam 1, wherein a through groove 10 is formed in the top end of the main beam 1, a pair of guide rails 11 are fixedly connected to the top end of the main beam 1, an electric trolley 2 is slidably connected between the two guide rails 11, a cavity 20 is formed in the upper surface of the electric trolley 2 in a penetrating manner, a winding mechanism is arranged in the cavity 20, a connecting plate 3 is arranged at the bottom end of the electric trolley 2, a bearing rope 30 is fixedly connected to the bottom end of the connecting plate 3, a first hook 31 is fixedly connected to the bottom end of the bearing rope 30, a pair of mounting grooves 32 are formed in the lower surface of the connecting plate 3, the two mounting grooves 32 are located on the left side and the right side of the bearing rope 30, a second rotating shaft 33 is rotatably connected to the mounting grooves 32, traction ropes 34 are respectively wound on two sides of the side walls of the second rotating shaft 33, one end of the traction ropes 34 is fixedly connected to the second rotating shaft 33, a second hook 36 is fixedly connected to the other end of the traction ropes 34, a pair of second motors 35 are mounted on the front sides of the connecting plate 3, the first motor 35 is extended to the output shaft of the second motor 33 which is coaxially connected to the second rotating shaft 33.

The working principle is as follows: firstly, the electric trolley 2 moves on the guide rail 11, the electric trolley 2 is adjusted to hoist the object, the winding mechanism is started, the connecting plate 3 is driven to move to the position above the object to be hoisted, the first hook 31 is connected with the object, the second motor 35 is started, the output shaft of the second motor drives the second rotating shaft 33 to rotate, the traction ropes 34 on two sides are driven to be released, the traction ropes 34 are adjusted to a proper length according to the size of the object, and then the second hooks 36 are respectively connected with four corners of the object, so that the balance of the goods during hoisting is maintained.

In order to lift an object, the winding mechanism at least comprises a first motor 23, the first motor 23 is fixedly connected with the left end of the electric trolley 2, a first rotating shaft 21 is rotationally connected in the cavity 20, an output shaft of the first motor 23 extends to be coaxially connected with the first rotating shaft 21, a cable 22 is wound on the side wall of the first rotating shaft 21, one end of the cable 22 is fixedly connected with the first rotating shaft 21, the other end of the cable 22 is fixedly connected with the connecting plate 3, and the output shaft of the first motor 23 drives the first rotating shaft 21 to rotate, so that the cable 22 is tightened, and the object is lifted and moves upwards.

Considering that the two traction ropes 34 are wound when being tightened, the isolation plate 37 is fixedly connected in the mounting groove 32, the isolation plate 37 is positioned between the two traction ropes 34, the isolation plate 37 is internally provided with the rotary groove 38 which is rotationally connected with the second rotary shaft 33, and the isolation plate 37 is used for isolating, so that the mutual winding of the two traction ropes 34 in the winding and unwinding process is avoided, and the use is influenced.

In order to avoid the deviation when the electric trolley 2 slides, a group of limiting blocks 24 are symmetrically and fixedly connected to the bottom end of the electric trolley 2, one ends of the two groups of limiting blocks 24, which are opposite, are in sliding connection with the main beam 1, and when the electric trolley 2 slides, the electric trolley 2 is limited by the two groups of limiting blocks 24, so that the derailment of the electric trolley 2 is avoided.

For making things convenient for this device to remove after lifting up the object, so equal fixedly connected with supporting shoe 12 of girder 1 bottom both sides, supporting shoe 12 bottom symmetry fixedly connected with support column 13, fixedly connected with bottom plate 4 between two support column 13 bottoms, bottom plate 4 bottom sliding connection has slide rail 5, through bottom plate 4 and slide rail 5 sliding connection, conveniently removes whole device according to slide rail 5 route.

In order to facilitate the movement between the bottom plate 4 and the sliding rail 5, the bottom end of the bottom plate 4 is provided with a groove 40, a plurality of connecting shafts 42 are rotationally connected in the groove 40, the side walls of the connecting shafts 42 are coaxially connected with pulleys 41, one end of each connecting shaft 42 extends to the outer side of the bottom plate 4, one end of each of the two bottom plates 4, which is opposite, is provided with a third motor 43, an output shaft of each of the third motors 43 is coaxially connected with one of the connecting shafts 42, the plurality of connecting shafts 42 are driven by a driving wheel matched with a driving belt 44, the top end of the sliding rail 5 is provided with a sliding groove 50, the pulleys 41 are in sliding connection with the sliding groove 50, the output shaft of each of the third motors 43 drives one of the connecting shafts 42 to rotate through the driving wheel matched with the driving belt 44, so that other connecting shafts 42 are driven to rotate, and the pulleys 41 are driven to rotate, so that the pulleys 41 move on the sliding rail 5 can be realized.

When the portal crane with the anti-overturning structure in the embodiment is specifically used, firstly, the electric trolley 2 moves on the guide rail 11, the electric trolley 2 is adjusted to be above a lifted object, the electric trolley 2 is limited by the limiting block 24, the deviation is avoided when the electric trolley 2 moves, the first motor 23 is started, the output shaft of the first motor drives the first rotating shaft 21 to rotate, the mooring rope 22 is driven to release, the connecting plate 3 is driven to move above the object to be lifted, the first hook 31 is connected with the object, the second motor 35 is started, the output shaft of the second motor drives the second rotating shaft 33 to rotate, the traction ropes 34 on two sides are driven to release, the traction ropes 34 are adjusted to be of a proper length according to the size of the object, then the second hooks 36 are respectively connected with four corners of the object, the balance of the object is kept, the traction ropes 34 are prevented from being wound with each other when being retracted and released by the isolating plate 37, the rotation direction of the first motor 23 is changed, the mooring rope 22 is driven to tighten, the object is driven to lift and the third motor 43 is driven, the output shaft of the connecting shaft 42 and the transmission belt 44 is driven to rotate, the pulley 41 is driven to move upwards, and the pulley 41 is driven to move along the sliding rail 5, the lifting device is prevented from moving, and the cargo is easy to operate.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Portal crane with anti-capsizing structure, characterized in that: including girder (1), logical groove (10) have been seted up on girder (1) top, a pair of guide rail (11) of girder (1) top fixedly connected with, two sliding connection has electric handcart (2) between guide rail (11), cavity (20) have been seted up in electric handcart (2) upper surface run-through, be provided with winding mechanism in cavity (20), electric handcart (2) bottom is provided with connecting plate (3), connecting plate (3) bottom fixedly connected with bearing rope (30), bearing rope (30) bottom fixedly connected with first couple (31), a pair of mounting groove (32) have been seted up to connecting plate (3) lower surface, two mounting groove (32) are located bearing rope (30) left and right sides, mounting groove (32) internal rotation is connected with second pivot (33), haulage rope (34) both sides are twined respectively in second pivot (33) lateral wall both sides, haulage rope (34) one end and second pivot (33) fixedly connected with, haulage rope (34) other end fixedly connected with second motor (36), a pair of coaxial output shaft (35) are connected with second output shaft (35).

2. Gantry crane with anti-capsizing structure according to claim 1, characterized in that: the winding mechanism at least comprises a first motor (23), the first motor (23) is fixedly connected with the left end of the electric trolley (2), a first rotating shaft (21) is rotationally connected to the cavity (20), an output shaft of the first motor (23) extends to be coaxially connected with the first rotating shaft (21), a cable (22) is wound on the side wall of the first rotating shaft (21), one end of the cable (22) is fixedly connected with the first rotating shaft (21), and the other end of the cable (22) is fixedly connected with the connecting plate (3).

3. Gantry crane with anti-capsizing structure according to claim 1, characterized in that: the mounting groove (32) is internally and fixedly connected with a separation plate (37), the separation plate (37) is positioned between the two traction ropes (34), and a rotary groove (38) which is rotationally connected with the second rotary shaft (33) is formed in the separation plate (37).

4. Gantry crane with anti-capsizing structure according to claim 1, characterized in that: the bottom end of the electric trolley (2) is symmetrically and fixedly connected with a group of limiting blocks (24), and two groups of opposite ends of the limiting blocks (24) are in sliding connection with the main beam (1).

5. Gantry crane with anti-capsizing structure according to claim 1, characterized in that: the two sides of the bottom end of the main beam (1) are fixedly connected with supporting blocks (12), the bottom ends of the supporting blocks (12) are symmetrically and fixedly connected with supporting columns (13), a bottom plate (4) is fixedly connected between the bottom ends of the supporting columns (13), and the bottom ends of the bottom plate (4) are slidably connected with sliding rails (5).

6. The gantry crane with anti-capsizing structure according to claim 5, characterized in that: the novel sliding rail is characterized in that a groove (40) is formed in the bottom end of the bottom plate (4), a plurality of connecting shafts (42) are connected in the groove (40) in a rotating mode, pulleys (41) are coaxially connected to the side walls of the connecting shafts (42), one end of each connecting shaft (42) extends to the outer side of the bottom plate (4), two opposite ends of the bottom plate (4) are provided with a third motor (43), an output shaft of each third motor (43) is coaxially connected with one connecting shaft (42), a plurality of connecting shafts (42) are in transmission through a transmission wheel matched transmission belt (44), sliding grooves (50) are formed in the top ends of the sliding rails (5), and the pulleys (41) are in sliding connection with the sliding grooves (50).