CN221739705U - Combined double-lifting-point rotary crane - Google Patents

Abstract

The utility model discloses a combined double-lifting-point slewing crane, comprising a support seat, a rotating device is installed on the upper end of the support seat, a mounting device is installed on the upper front, upper left, upper rear and upper right of the rotating device, a support frame is installed on the lower end of the support seat, an adjusting device is installed on the left and right ends of the support frame, an electric hoist is installed on the lower end of the two adjusting devices, and a hook is installed on the lower end of the two electric hoists. The combined double-lifting-point slewing crane described in the utility model can adjust the angle of the electric hoist and the goods hung by the hooks by the rotating device, so that the goods can be placed or unloaded conveniently before and after transportation, the two electric hoists can operate independently or in linkage, the height of the two hooks can be adjusted by the electric hoist, and the distance between the two hooks can be adjusted by the adjusting device, thereby improving the practicality of the device.

Description

A combined double-lifting-point slewing crane

Technical Field

The utility model relates to the technical field of cranes, in particular to a combined double-hanging-point slewing crane.

Background Art

Cranes refer to multi-action lifting machinery that can lift and carry heavy objects vertically and horizontally within a certain range. They are also called overhead cranes, overhead cranes, and crane cranes. Cranes can be divided into four categories: light and small lifting equipment, bridge cranes, jib cranes, and elevators. Cranes are widely used in various industries because they can reduce labor and improve work efficiency.

The existing patent (application number 202210046146.4) discloses a crane lifting adjustment device, which also mentions that "the lifting completely relies on adjusting the lifting trolley and the crossbeam to adjust the hook position. The lifting trolley has low control accuracy and a large operating range, making it difficult to control the position of the hook. The hook is not convenient to operate when connected to the cargo, and it cannot be rotated, which results in low efficiency in lifting cargo." Moreover, single-beam and double-beam bridge cranes can only be translated and raised but not rotated when lifting with double lifting points. In workshops such as aircraft manufacturing and maintenance, it is necessary to lift parts with complex shapes. It is difficult to complete the lifting task with a single hook and sling. It is necessary to use a double hook that can change the spacing and can rotate to suspend the parts in a specific physical space position to complete the assembly, which cannot meet the use requirements. In summary, the existing single-beam and double-beam bridge cranes still have the following problems:

Single-beam and double-beam bridge cranes can only be moved horizontally and raised and lowered when using double lifting points, but cannot be rotated. In workshops such as aircraft manufacturing and maintenance, it is difficult to complete the lifting task with a single hook hanging sling when complex parts need to be lifted.

Utility Model Content

The main purpose of the utility model is to provide a combined double-lifting point slewing crane, which can effectively solve the problem that a single-beam or double-beam bridge crane can only be translated and lifted but cannot be rotated when lifting with double lifting points. In workshops such as aircraft manufacturing and maintenance, it is difficult to complete the lifting task with a single hook hanging sling when lifting complex-shaped parts.

In order to achieve the above purpose, the technical solution adopted by the utility model is:

A combined double-lifting-point slewing crane comprises a support seat, a rotating device is installed on the upper end of the support seat, a mounting device is installed on the upper front, upper left, upper rear and upper right parts of the rotating device, a support frame is installed on the lower end of the support seat, an adjusting device is installed on the left and right ends of the support frame, an electric hoist is installed on the lower end of two adjusting devices, and a hook is installed on the lower end of two electric hoists.

Preferably, the rotating device includes a mounting frame and an annular track, a motor is mounted in the middle of the upper end of the mounting frame, a rotating shaft is fixedly mounted at the output end of the motor, movable connecting plates are mounted at the left and right lower ends of the annular track, the annular track is mounted on the upper end of the support seat through the movable connecting plate, a connecting seat is mounted in the middle of the upper end of the support seat, the connecting seat is connected to the rotating shaft, and the mounting frame is mounted between the left inner wall and the right inner wall of the annular track. The motor drives the rotating shaft to rotate, and the rotating shaft drives the connecting seat and the support seat to rotate accordingly. Since the lower end of the movable connecting plate is fixed to the support seat and the upper end is connected to the annular track, when the support seat rotates, the movable connecting plate will rotate on the annular track, so that the electric hoist at the lower end of the support seat and the goods hung by the hook can be adjusted in angle immediately.

Preferably, the adjustment device includes a movable seat, a slider is installed in the middle of the lower end of the movable seat, a hydraulic cylinder is installed at the right end of the movable seat, a slide groove is opened in the middle of the upper end of the support frame, the hydraulic cylinder is installed at the right end of the support frame, and the movable seat is installed at the upper end of the support frame through the slider. The two electric hoists can operate independently or in conjunction, and the height of the two hooks can be adjusted by the electric hoist. The spacing between the two hooks can be extended and retracted by the piston rod at the output end of the adjustment device driven by the hydraulic cylinder, and the piston rod further pushes the movable seat to slide left and right on the support frame, so that the electric hoist and hook at the lower end of the movable seat can be adjusted.

Preferably, the mounting device includes four mounting plates, each of which has a group of mounting holes on its upper end, and each of which has mounting screws installed on its lower end. The four mounting plates are respectively installed on the front upper end, the left upper end, the rear upper end and the right upper end of the mounting frame.

Preferably, the movable seat is U-shaped, and the sliding block and the sliding groove are T-shaped.

Preferably, the four mounting plates are distributed in a circular array with the mounting frame as the center.

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

1. First, the electric hoist drives the hook downward to lift the goods, and the two electric hoists can work independently or in conjunction. The height of the two hooks can be adjusted by the electric hoist, and the distance between the two hooks can be adjusted by the hydraulic cylinder on the adjustment device to drive the piston rod at its output end to extend and retract. The piston rod then pushes the movable seat to slide left and right on the support frame, so that the electric hoist and hook at the lower end of the movable seat can be adjusted. The device is equipped with double lifting points to facilitate the lifting of special-shaped long workpieces. At the same time, the height of the two hooks can change the angle between the workpiece and the horizon, thereby improving the practicability of the device.

2. After the device lifts the goods, when the position needs to be adjusted, the motor on the rotating device drives the shaft to rotate, and the shaft then drives the connecting seat and the support seat to rotate. Since the lower end of the movable connecting plate is fixed on the support seat and the upper end is connected to the circular track, when the support seat rotates, the movable connecting plate will rotate on the circular track, so that the electric hoist at the lower end of the support seat and the hooked goods can be adjusted at the angle immediately, so that the goods can be conveniently placed or unloaded before and after transportation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a combined double-hanging-point slewing crane of the utility model;

FIG2 is a schematic diagram of the overall structure of a rotating device of a combined double-hanging-point slewing crane of the utility model;

FIG3 is a schematic diagram of the overall structure of an adjustment device of a combined double-hanging-point slewing crane of the utility model;

FIG. 4 is a schematic diagram of the overall structure of an installation device of a combined double-hanging-point slewing crane according to the present invention.

In the figure: 1. support seat; 2. rotating device; 3. adjusting device; 4. mounting device; 5. support frame; 6. electric hoist; 7. hook; 20. mounting frame; 21. circular track; 22. motor; 23. rotating shaft; 24. movable connecting plate; 25. connecting seat; 30. movable seat; 31. slider; 32. hydraulic cylinder; 33. slide groove; 40. mounting plate; 41. mounting hole; 42. mounting screw.

DETAILED DESCRIPTION

In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

As shown in Figures 1-4, a combined double-lifting-point slewing crane includes a support base 1, a rotating device 2 is installed on the upper end of the support base 1, and a mounting device 4 is installed on the upper front, upper left, upper rear and upper right of the rotating device 2; a support frame 5 is installed on the lower end of the support base 1, and an adjusting device 3 is installed on the left and right ends of the support frame 5, electric hoists 6 are installed on the lower ends of the two adjusting devices 3, and hooks 7 are installed on the lower ends of the two electric hoists 6.

The rotating device 2 includes a mounting frame 20 and a circular track 21. A motor 22 is installed in the middle of the upper end of the mounting frame 20. A rotating shaft 23 is fixedly installed at the output end of the motor 22. Active connecting plates 24 are installed at the left and right parts of the lower end of the circular track 21. The circular track 21 is installed on the upper end of the support seat 1 through the active connecting plate 24. A connecting seat 25 is installed in the middle of the upper end of the support seat 1. The connecting seat 25 is connected to the rotating shaft 23. The mounting frame 20 is installed between the left inner wall and the right inner wall of the circular track 21. In a specific embodiment, the mounting frame 20 is installed between the left inner wall and the right inner wall of the circular track 21 by welding. As a specific implementation method, in this embodiment, the motor 22 drives the rotating shaft 23 to rotate, and the rotating shaft 23 then drives the connecting seat 25 and the support seat 1 to rotate accordingly. Since the lower end of the movable connecting plate 24 is fixed on the support seat 1, and the upper end is connected to the annular track 21, when the support seat 1 rotates, the movable connecting plate 24 will rotate on the annular track 21, so that the electric hoist 6 at the lower end of the support seat 1 and the hooked cargo can be adjusted in angle immediately.

The adjusting device 3 includes a movable seat 30, a slider 31 is installed in the middle of the lower end of the movable seat 30, a hydraulic cylinder 32 is installed at the right end of the movable seat 30, a slide groove 33 is opened in the middle of the upper end of the support frame 5, the hydraulic cylinder 32 is installed at the right end of the support frame 5, and the movable seat 30 is installed at the upper end of the support frame 5 through the slider 31; the movable seat 30 is U-shaped, and the slider 31 and the slide groove 33 are T-shaped. The two electric hoists 6 can work alone or in conjunction, and the height of the two hooks 7 can be adjusted by the electric hoist 6. The distance between the two hooks 7 can be extended and retracted by the piston rod at the output end of the adjusting device 3 driven by the hydraulic cylinder 32, and the piston rod further pushes the movable seat 30 to slide left and right on the support frame 5, so that the electric hoist 6 and the hook 7 at the lower end of the movable seat 30 can be adjusted.

The mounting device 4 includes a mounting plate 40, and four mounting plates 40 are provided. A group of mounting holes 41 are opened on the upper end of the four mounting plates 40, and mounting screws 42 are installed on the lower end of the four groups of mounting holes 41. The four mounting plates 40 are respectively installed on the front part, the left part, the rear part and the right part of the upper end of the mounting frame 20; in a specific embodiment, the four mounting plates 40 are installed on the upper end of the mounting frame 20 by welding; the four mounting plates 40 are distributed in a circular array with the mounting frame 20 as the center.

It should be noted that the utility model is a combined double-lifting-point slewing crane. First, the electric hoist 6 drives the hook 7 to lift the cargo downward, and the two electric hoists 6 can work independently or in linkage. The height of the two hooks 7 can be adjusted by the electric hoist 6. The spacing between the two hooks 7 can be extended and retracted by the piston rod at the output end driven by the hydraulic cylinder 32 on the adjusting device 3. The piston rod then pushes the movable seat 30 to slide left and right on the support frame 5, so that the electric hoist 6 and the hook 7 at the lower end of the movable seat 30 can be adjusted. The device is provided with double lifting points to facilitate the lifting of special-shaped long workpieces. At the same time, the two hooks 7 The height can change the angle between the workpiece and the horizon, thereby improving the practicality of the device. After the device lifts the goods, when the position needs to be adjusted, the motor 22 on the rotating device 2 drives the shaft 23 to rotate, and the shaft 23 then drives the connecting seat 25 and the supporting seat 1 to rotate accordingly. Since the lower end of the movable connecting plate 24 is fixed on the supporting seat 1 and the upper end is connected to the circular track 21, when the supporting seat 1 rotates, the movable connecting plate 24 will rotate on the circular track 21, so that the electric hoist 6 at the lower end of the supporting seat 1 and the goods hooked can be adjusted at the angle immediately, so that the goods can be conveniently placed or unloaded before and after transportation.

The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims (6)

1. A combined double-hanging-point slewing crane, comprising a support seat (1), characterized in that: a rotating device (2) is installed at the upper end of the support seat (1), and a mounting device (4) is installed at the upper front, upper left, upper rear and upper right of the rotating device (2); a supporting frame (5) is installed at the lower end of the support seat (1), and an adjusting device (3) is installed at the left and right ends of the supporting frame (5), and an electric hoist (6) is installed at the lower end of two adjusting devices (3), and a hook (7) is installed at the lower end of two electric hoists (6). 2. A combined double-hanging-point slewing crane according to claim 1, characterized in that: the rotating device (2) comprises a mounting frame (20) and a circular track (21), a motor (22) is mounted in the middle of the upper end of the mounting frame (20), a rotating shaft (23) is fixedly mounted at the output end of the motor (22), and movable connecting plates (24) are mounted on the left and right parts of the lower end of the circular track (21), the circular track (21) is mounted on the upper end of the support seat (1) through the movable connecting plate (24), a connecting seat (25) is mounted in the middle of the upper end of the support seat (1), the connecting seat (25) is connected to the rotating shaft (23), and the mounting frame (20) is mounted between the left inner wall and the right inner wall of the circular track (21). 3. A combined double-lifting-point slewing crane according to claim 1, characterized in that: the adjusting device (3) comprises a movable seat (30), a slider (31) is installed in the middle of the lower end of the movable seat (30), a hydraulic cylinder (32) is installed at the right end of the movable seat (30), a slide groove (33) is opened in the middle of the upper end of the support frame (5), the hydraulic cylinder (32) is installed at the right end of the support frame (5), and the movable seat (30) is installed on the upper end of the support frame (5) through the slider (31). 4. A combined double-lifting-point slewing crane according to claim 2, characterized in that: the mounting device (4) comprises a mounting plate (40), four mounting plates (40) are provided, a group of mounting holes (41) are opened at the upper end of the four mounting plates (40), mounting screws (42) are installed at the lower end of the four groups of mounting holes (41), and the four mounting plates (40) are respectively installed at the upper front part, the upper left part, the upper rear part and the upper right part of the mounting frame (20). 5. The combined double-lifting-point slewing crane according to claim 3, characterized in that the movable seat (30) is U-shaped, and the sliding block (31) and the sliding groove (33) are T-shaped. 6. A combined double-lifting-point slewing crane according to claim 4, characterized in that the four mounting plates (40) are distributed in a circular array with the mounting frame (20) as the center.