High-strength cantilever crane

Abstract

The utility model relates to the technical field of cantilever cranes, and discloses a high-strength cantilever crane which comprises a stand column, a grounding piece is fixedly installed at the bottom of the stand column, a threaded hole is formed in the outer wall of the grounding piece, a connecting disc is installed at the top of the stand column, and a double connector is installed at the top of the connecting disc. Power distribution equipment is fixedly installed on the outer wall of the double connector, a fixing frame is fixedly connected to the inner wall of the double connector in a sleeving mode, a lifting machine is arranged at the bottom of the fixing frame, a lifting hook is arranged at the bottom of the lifting machine, pressure can be applied to the connecting position of a grounding piece and the ground, and in the process, a balancing weight on the side away from the lifting hook is used for weighting. And the gravity is transmitted to the upright post in the middle by utilizing the telescopic sleeve shell, so that the weights of the two sides of the upright post and the grounding piece are maintained to be almost the same, and the upright post and the grounding piece are prevented from inclining and collapsing due to overweight of one side when being connected with the ground.

Description

Technical Field

[0001] The utility model relates to the technical field of cantilever cranes, in particular to a high-strength cantilever crane. Background Technique

[0002] A cantilever crane is an industrial component and belongs to a crane with a light working intensity. It is widely used in multiple fields such as industry, construction, and logistics. The cantilever crane has the characteristics of high efficiency, energy conservation, small floor area, easy operation and maintenance, etc. It is easy to get started, and all operations can be realized through the push-button on the flashlight switch. The machine is also convenient for maintenance.

[0003] For the existing high-strength cantilever crane, reference can be made to the Chinese utility model patent with the authorization announcement number CN212687407U, which discloses a cantilever crane, "including: a column; a boom, the boom is rotatably connected to the top of the column; a rack with the tooth tips facing downward is arranged on the lower surface of the boom; a cantilever, a gear meshing with the rack is arranged on the cantilever, and the cantilever is connected to the boom; a motor is arranged on the cantilever to drive the gear to rotate so that the cantilever moves along the length direction of the rack."

[0004] When the above device is in use, the existing device uses a cantilever crane to set a rack on the lower surface of the boom, which increases the lifting load and positioning accuracy of the crane. However, a more effective design can still be made for the bearing capacity of the cantilever crane, and the bearing capacity of the device can be further improved. Moreover, when the existing device suspends heavy objects on one side, it is inevitable that due to the high-strength pressure on one side, the position of the connection between the device and the ground will tilt or collapse. Therefore, a high-strength cantilever crane that solves the above problems is needed. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a high-strength cantilever crane, which has the advantages of strong practicability, balanced pressure, increased load-bearing, etc., and solves the problems raised in the above background technique.

[0006] The utility model provides the following technical solution: a high-strength cantilever crane, including a column, a grounding plate is fixedly installed at the bottom of the column, threaded holes are opened on the outer wall of the grounding plate, a connecting plate is installed at the top of the column, a double connector is installed at the top of the connecting plate, a power distribution device is fixedly installed on the outer wall of the double connector, a fixing frame is fixedly sleeved inside the double connector, a hoist is arranged at the bottom of the fixing frame, a hook is arranged at the bottom of the hoist, an extension frame is sleeved inside the inner cavity of the fixing frame, a rotary joint is connected to the outer wall of the extension frame, a rotating rod is movably connected to the outer wall of the rotary joint, adjustment holes are opened on the outer wall of the rotating rod, a grounding rod is sleeved at the other end of the rotating rod away from the rotary joint, a telescopic motor is installed inside the double connector, a telescopic shaft is fixedly connected to the power output shaft of the telescopic motor, a telescopic sleeve is connected to the outer wall of the telescopic shaft, a lifting rope is fixedly connected to the bottom of the telescopic sleeve, and a counterweight block is arranged on the outer wall of the lifting rope.

[0007] As a preferred technical solution of the utility model, the number of the threaded holes is several, and the several threaded holes are uniformly arranged around the grounding plate.

[0008] As a preferred technical solution of the utility model, the power distribution device is electrically connected to the hoist, and the power distribution device controls the movement of the hoist.

[0009] As a preferred technical solution of the utility model, sliding grooves are arranged on both sides of the fixing frame, and rolling wheels are arranged on the inner wall of the hoist.

[0010] As a preferred technical solution of the utility model, the rotating rod rotates 270° around the rotary joint, and a limiting block is arranged on the outer wall of the rotating rod.

[0011] As a preferred technical solution of the utility model, one end of the lifting rope away from the telescopic sleeve is connected to a tray, and the counterweight block is placed on the lifting rope through the tray.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. For this high-strength cantilever crane, through the mutual cooperation of the hook, hoist, counterweight block, telescopic sleeve and grounding plate on the device, during the high-strength use of the device, since one side of the hoist is often in an overloaded state, pressure will be exerted on the connection between the grounding plate and the ground. During this process, the counterweight block on the side away from the hook is used for weighting, and the telescopic sleeve is used to conduct the gravity to the column in the middle position, so that the weights on both sides of the column and the grounding plate are maintained almost the same, and thus the column and the grounding plate will not tilt or collapse due to one side being too heavy when connected to the ground.

[0014] 2. The high-strength cantilever crane, through the coordinated use of the hook, fixed frame, grounding rod, rotating rod, and extension frame on the device, when the hook on the device suspends heavy objects at the bottom of the fixed frame, the extension frame is used to expand the rotating rod outward by a certain distance, and the grounding rod sleeved on the rotating rod stands on the ground, so that the grounding rod on the device and the rotating rod form a support point, and then form a portal suspension crane with the column and the fixed frame, and the bearing pressure of the device is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional sectional structural schematic diagram of the present utility model;

[0017] Figure 3 is a three-dimensional structural schematic diagram of another perspective of the present utility model;

[0018] Figure 4 is a structural schematic diagram of the telescopic frame of the present utility model;

[0019] Figure 5 is a structural schematic diagram of the present utility model.

[0020] In the figure: 1. Column; 2. Grounding plate; 3. Threaded hole; 4. Connecting plate; 5. Double connector; 6. Power distribution equipment; 7. Fixed frame; 8. Hoisting machine; 9. Hook; 10. Extension frame; 11. Rotary joint; 12. Rotating rod; 13. Adjusting hole; 14. Grounding rod; 15. Telescopic motor; 16. Telescopic shaft; 17. Telescopic housing; 18. Hoisting rope; 19. Counterweight. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 - 5, A high-strength cantilever crane, including a column 1, a grounding plate 2 is fixedly installed at the bottom of the column 1, threaded holes 3 are opened on the outer wall of the grounding plate 2, a connecting plate 4 is installed at the top of the column 1, a double connector 5 is installed at the top of the connecting plate 4, a power distribution device 6 is fixedly installed on the outer wall of the double connector 5, a fixing frame 7 is fixedly sleeved inside the double connector 5, a hoist 8 is provided at the bottom of the fixing frame 7, a hook 9 is provided at the bottom of the hoist 8, an extension frame 10 is sleeved inside the cavity of the fixing frame 7, a rotary joint 11 is connected to the outer wall of the extension frame 10, a rotating rod 12 is movably connected to the outer wall of the rotary joint 11, adjustment holes 13 are opened on the outer wall of the rotating rod 12, a grounding rod 14 is sleeved at the other end of the rotating rod 12 away from the rotary joint 11, a telescopic motor 15 is installed inside the double connector 5, a telescopic shaft 16 is fixedly connected to the power output shaft of the telescopic motor 15, a telescopic sleeve 17 is connected to the outer wall of the telescopic shaft 16, a lifting rope 18 is fixedly connected to the bottom of the telescopic sleeve 17, a counterweight 19 is provided on the outer wall of the lifting rope 18. Through the mutual cooperation of the hook 9, the hoist 8, the counterweight 19, the telescopic sleeve 17 and the grounding plate 2 on the device, when the device is used intensively, the side of the hoist 8 is often in an overloaded state, and pressure is exerted on the connection between the grounding plate 2 and the ground. In this process, the counterweight 19 on the side away from the hook 9 is used for weighting, and the telescopic sleeve 17 is used to conduct the gravity to the column 1 in the middle position, so that the weights on both sides of the column 1 and the grounding plate 2 are maintained almost the same, and thus the column 1 and the grounding plate 2 will not tilt or collapse when connected to the ground due to one side being overweight.

[0023] In a preferred embodiment, the number of the threaded holes 3 is several, and several threaded holes 3 are evenly arranged around the grounding plate 2. Through the several threaded holes 3 on the device, the threaded holes 3 on the device are evenly arranged on the outer wall of the grounding plate 2, and the grounding plate 2 is connected to the ground by matching the threaded holes 3 with screws, so that the column 1 on the device can be stabilized on the ground.

[0024] In a preferred embodiment, the power distribution device 6 is electrically connected to the hoist 8, and the power distribution device 6 controls the movement of the hoist 8. Through the electrical connection relationship between the power distribution device 6 and the hoist 8 on the device, when the power distribution device 6 on the device receives an instruction, the power distribution device 6 is used to mobilize the hoist 8 to move, and the hoist 8 is mobilized to perform lifting, so that the hoist 8 on the device can enter the braking state.

[0025] In a preferred embodiment, slideways are provided on both sides of the fixing frame 7, and rolling wheels are provided on the inner wall of the hoist 8. By providing slideways on both sides of the fixing frame 7 of the device, the hoist 8 on the device can slide along the inner wall of the fixing frame 7 by using the rolling wheels in the slideways on both sides of the fixing frame 7, so that the hoist 8 on the device can slide left and right along the inner wall of the fixing frame 7.

[0026] In a preferred embodiment, the rotating rod 12 rotates 270° around the rotary joint 11, and a limiting block is provided on the outer wall of the rotating rod 12. By rotating the rotating rod 12 on the device 270° around the rotary joint 11, the rotating rod 12 on the device can be flipped from the top of the fixing frame 7 and vertically downward. When the rotating rod 12 is placed on the top of the fixing frame 7, the limiting block on the outer wall of the rotating rod 12 is used to prevent the rotating rod 12 from colliding with the outer wall of the fixing frame 7.

[0027] In a preferred embodiment, one end of the lifting rope 18 away from the telescopic housing 17 is connected to a tray, and a counterweight 19 is placed on the tray through the lifting rope 18. By connecting one end of the lifting rope 18 away from the telescopic housing 17 to a tray on the device, the telescopic housing 17 on the device is connected to the tray through the lifting rope 18, and the counterweight 19 is placed on the tray, so that the counterweight 19 on the device is perpendicular to the bottom of the telescopic housing 17 by using the lifting rope 18, and further enables the counterweight 19 to perform a counterweight operation on the other side away from the hook 9.

[0028] Working principle: First, through the coordinated use of the hook 9, hoist 8, counterweight 19, telescopic housing 17, and grounding plate 2 on the device, during the high-intensity use of the device, one side of the hoist 8 is often in an overloaded state, and pressure is applied to the connection between the grounding plate 2 and the ground. During this process, the counterweight 19 on the side away from the hook 9 is used for weighting, and the telescopic housing 17 is used to conduct the gravity to the column 1 in the middle position, so that the weights on both sides of the column 1 and the grounding plate 2 are maintained at almost the same level, and further prevent the column 1 and the grounding plate 2 from tilting or collapsing due to excessive weight on one side when connected to the ground. Then, through the coordinated use of the hook 9, fixing frame 7, grounding rod 14, rotating rod 12, and extension frame 10 on the device, when the hook 9 on the device suspends a heavy object at the bottom of the fixing frame 7, the extension frame 10 is used to expand the rotating rod 12 outward by a certain distance, and the grounding rod 14 sleeved on the rotating rod 12 stands on the ground, so that the grounding rod 14 on the device cooperates with the rotating rod 12 to form a support point, and further forms a portal suspension bracket with the column 1 and the fixing frame 7, and increases the bearing pressure of the device.

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength cantilever crane, comprising a column (1), characterized in that: A grounding plate (2) is fixedly mounted on the bottom of the column (1), a threaded hole (3) is provided on the outer wall of the grounding plate (2), a connection plate (4) is mounted on the top of the column (1), a double connector (5) is mounted on the top of the connection plate (4), a power distribution device (6) is fixedly mounted on the outer wall of the double connector (5), a fixing frame (7) is fixedly sleeved on the inner wall of the double connector (5), a hoist (8) is provided on the bottom of the fixing frame (7), a hook (9) is provided on the bottom of the hoist (8), an extension frame (10) is sleeved on the inner cavity of the fixing frame (7), and a swivel joint is connected to the outer wall of the extension frame (10). (11), the outer wall of the rotating joint (11) is movably connected with a rotating rod (12), the outer wall of the rotating rod (12) is provided with an adjustment hole (13), the other end of the rotating rod (12) away from the rotating joint (11) is sleeved with a grounding rod (14), the inner cavity of the double connector (5) is installed with a telescopic motor (15), the power output shaft of the telescopic motor (15) is fixedly connected with a telescopic shaft (16), the outer wall of the telescopic shaft (16) is connected with a telescopic casing (17), the bottom of the telescopic casing (17) is fixedly connected with a suspension rope (18), and the outer wall of the suspension rope (18) is provided with a counterweight block (19).

2. A high-strength cantilever crane according to claim 1, characterized in that: The number of the threaded holes (3) is several, and the several threaded holes (3) are evenly arranged around the periphery of the grounding plate (2).

3. The high-strength cantilever crane according to claim 1, characterized in that: The power distribution device (6) is electrically connected to the hoist (8), and the power distribution device (6) controls the movement of the hoist (8).

4. The high-strength cantilever crane according to claim 1, characterized in that: Slideways are arranged on both sides of the fixing frame (7), and rolling wheels are arranged on the inner wall of the hoist (8).

5. The high-strength cantilever crane according to claim 1, characterized in that: The rotating rod (12) rotates 270° with the rotating joint (11) as the center point, and a limit block is provided on the outer wall of the rotating rod (12).

6. The high-strength cantilever crane according to claim 1, characterized in that: One end of the sling rope (18) away from the telescopic casing (17) is connected to a tray, and a counterweight (19) is placed on the sling rope (18) through the tray.

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