An automatic balancing device for hoisting machines

Abstract

This utility model relates to the field of hoisting machine technology, and provides an automatic balancing device for hoisting machines, including a connecting ring. The top of the connecting ring has an installation structure, and both sides of the bottom of the connecting ring have balancing structures. Each balancing structure includes an installation ring, a snap ring, a balancing plate, a hanging hole, and a connecting hole. The installation ring is evenly fitted onto the bottom of the connecting ring. This utility model, through the balancing structures and the symmetrically distributed installation rings and balancing plates, enables automatic horizontal adjustment during hoisting. The design of the connecting holes allows the first lifting chain and the second lifting ring to move within the connecting holes, facilitating automatic adjustment of the connection direction according to different loads and adapting to different load distributions. The structure is simple, reduces moving parts, lowers wear and failure rates, and enables the device to automatically balance loads, improving the convenience and applicability of the automatic balancing device for hoisting machines.

Description

Technical Field

[0001] This utility model relates to the field of hoisting machine technology, and in particular to an automatic balancing device for hoisting machines. Background Technology

[0002] As core equipment in modern industry, construction, and logistics, hoisting machines are responsible for handling, installing, and positioning heavy and large-volume materials, making them indispensable key equipment in national economic construction. However, when hoisting machines start, accelerate, decelerate, stop, or rotate, the load suspended under the wire rope will inevitably sway due to inertia and centrifugal force. This swaying and imbalance can lead to collisions between the load and surrounding equipment and building structures, causing equipment damage, cargo destruction, and even serious personal safety accidents. Therefore, it is necessary to design an automatic balancing device for hoisting machines.

[0003] To address this, patent CN219823463U discloses an automatic balancing device for overhead cranes, belonging to the field of battery technology. This utility model includes a mobile frame, a rotating block, and multiple gantry ropes. The mobile frame has a rotatably connected gantry crane pulley inside. The rotating block is rotatably connected to the lower side of the mobile frame, and a rotating frame is installed on the lower side of the rotating block. A traction mechanism is provided inside the rotating frame. Multiple gantry ropes are installed at the working end of the traction mechanism's outer side for connecting to a hook for lifting operations. When the mass distribution of the lifted item is uneven, and multiple ropes are stretched to varying degrees, causing the lifted item to lose balance, an adaptive control mechanism adaptively controls the working motors at the remote ends of multiple overhead crane frames. This allows for individual adaptive pulling of different ropes, ultimately keeping the lifted item horizontal. This greatly improves the ease of operation of the overhead crane during gantry crane lifting, reduces manual adjustment steps, and lowers safety hazards.

[0004] Although the automatic balancing device for overhead cranes mentioned above can control multiple motors to keep the load level during use through an adaptive control mechanism, the device contains multiple moving parts and has a complex structure. Under long-term use, it is prone to problems such as wear, jamming, and malfunction. Therefore, it is necessary to design an automatic balancing device for cranes. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic balancing device for hoisting machines, which solves the defects of existing automatic balancing devices for hoisting machines, which contain multiple moving parts, have a complex structure, and are prone to wear, jamming, and malfunctions under long-term use.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic balancing device for a hoisting machine, including a connecting ring;

[0007] The top end of the connecting ring is provided with an installation structure;

[0008] The bottom of the connecting ring is provided with a balancing structure on both sides. The balancing structure includes a mounting ring, a snap ring, a balancing plate, a hanging hole, and a connecting hole. The mounting ring is evenly fitted on the bottom of the connecting ring. The bottom of the mounting ring is fitted with a snap ring. The bottom of the snap ring is fitted with a balancing plate. The middle position of the inside of the balancing plate is provided with a hanging hole. The two sides of the inside of the balancing plate are provided with connecting holes.

[0009] Both sides of the bottom of the balancing structure are fitted with hoisting structures.

[0010] Furthermore, the mounting structure includes a mounting plate, mounting bolts, and hanging rings. The hanging rings are sleeved on the top of the connecting rings, and the mounting plate is fixed to the top of the hanging rings. Mounting bolts penetrate the corners of the mounting plate.

[0011] Furthermore, the mounting bolts are symmetrically distributed on both sides of the mounting plate, and the side view of the hanging ring is arc-shaped.

[0012] Furthermore, the mounting rings are symmetrically distributed on both sides of the connecting ring, and the balancing plates are symmetrically distributed on both sides of the connecting ring.

[0013] Furthermore, the connecting holes are symmetrically distributed on both sides of the balance plate.

[0014] Furthermore, the hoisting structure includes a first hoisting chain, a movable ring, a hook, and a second hoisting ring. The first hoisting chain is fitted inside the connecting hole at one end of the balance plate, and the second hoisting ring is fitted inside the connecting hole at the other end of the balance plate. The bottom ends of both the first hoisting chain and the second hoisting ring are fitted with movable rings, and the bottom of each movable ring is fitted with a hook.

[0015] Furthermore, the first chain and the second ring are of different lengths.

[0016] The automatic balancing device for hoisting machines provided by this utility model has the following advantages:

[0017] By incorporating a balancing structure and symmetrically distributed mounting rings and balancing plates, automatic horizontal adjustment can be achieved during hoisting. The design of the connecting holes allows the first lifting chain and the second lifting ring to move within the connecting holes, facilitating automatic adjustment of the connection direction according to different loads and adapting to different load distributions. The structure is simple, reducing moving parts, wear, and failure rate, thus enabling the device to automatically balance the load and improving the convenience and applicability of the hoisting machine's automatic balancing device in use.

[0018] The installation structure, mounting plate, and mounting bolts provide a stable and reliable installation interface, facilitating connection with the main body of the hoist. The arc design of the hanging ring helps to distribute the force, reduce stress concentration, and improve safety. The symmetrical distribution of the mounting bolts enhances connection stability and torsional resistance, enabling the device to be installed stably and improving the stability of the hoist's automatic balancing device during use.

[0019] By incorporating a lifting structure, the different lengths of the first lifting chain and the second lifting ring allow for fine-tuning of the load balance. The movable ring and hooks facilitate quick connection and disassembly of the lifting structure from the load, enhancing lifting flexibility and adapting to loads of different shapes and centers of gravity. This enables the device to perform quick lifting and improves the ease of use of the automatic balancing device for the hoisting machine. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0022] Figure 3 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0024] Figure 5 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0025] Figure 6 This is a side view cross-sectional three-dimensional structural diagram of the present invention.

[0026] The following are the annotations in the diagram: 1. Connecting ring; 2. Mounting structure; 21. Mounting plate; 22. Mounting bolt; 23. Hanging ring; 3. Balancing structure; 31. Mounting ring; 32. Snap ring; 33. Balancing plate; 34. Hanging hole; 35. Connecting hole; 4. Lifting structure; 41. First lifting chain; 42. Movable ring; 43. Hook; 44. Second lifting ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6 The present invention provides an automatic balancing device for a hoisting machine, comprising a connecting ring 1.

[0029] Reference Figures 1-6 The top of the connecting ring 1 is provided with an installation structure 2, which includes an installation plate 21, an installation bolt 22 and a hanging ring 23. The hanging ring 23 is sleeved on the top of the connecting ring 1, and the top of the hanging ring 23 is fixed with the installation plate 21. The corner positions of the installation plate 21 are all penetrated by the installation bolt 22. The installation bolt 22 is symmetrically distributed on both sides of the installation plate 21. The side view of the hanging ring 23 is arc-shaped.

[0030] The mounting structure 2 is sleeved on the top of the connecting ring 1 via the hanging ring 23. The mounting plate 21 is fixedly connected to the external hoist via the mounting bolt 22. The arc-shaped structure of the mounting bolt 22 can adaptively adjust the angle when under stress, avoiding fatigue fracture caused by rigid connection and ensuring stable force transmission during hoisting.

[0031] Reference Figures 1-6 The bottom of the connecting ring 1 is provided with a balancing structure 3 on both sides. The balancing structure 3 includes a mounting ring 31, a snap ring 32, a balancing plate 33, a hanging hole 34, and a connecting hole 35. The mounting ring 31 is evenly fitted on the bottom of the connecting ring 1. The bottom of the mounting ring 31 is fitted with a snap ring 32. The bottom of the snap ring 32 is fitted with a balancing plate 33. The middle position of the inside of the balancing plate 33 is provided with a hanging hole 34. The two sides of the inside of the balancing plate 33 are provided with connecting holes 35. The mounting ring 31 is symmetrically distributed on both sides of the connecting ring 1, the balancing plate 33 is symmetrically distributed on both sides of the connecting ring 1, and the connecting hole 35 is symmetrically distributed on both sides of the balancing plate 33.

[0032] The balancing structure 3 is connected to the connecting ring 1 through the mounting ring 31 and the snap ring 32. The balancing plate 33 is connected to the hoisting structure 4 through the hanging hole 34 and the connecting hole 35. When the load is unbalanced, the balancing plate 33 can swing slightly. The tilt angle of the balancing plate 33 is automatically adjusted by the symmetrically distributed connection points to adjust the connection angle of the first lifting chain 41 and the second lifting ring 44, so that the load is restored to a horizontal state.

[0033] Reference Figures 1-6 The bottom of the balancing structure 3 is fitted with two lifting structures 4 on both sides. The lifting structure 4 includes a first lifting chain 41, a movable ring 42, a hook 43, and a second lifting ring 44. The first lifting chain 41 is fitted inside the connection hole 35 at one end of the balancing plate 33, and the second lifting ring 44 is fitted inside the connection hole 35 at the other end of the balancing plate 33. The bottom of the first lifting chain 41 and the second lifting ring 44 are fitted with movable rings 42, and the bottom of the movable rings 42 are fitted with hooks 43. The lengths of the first lifting chain 41 and the second lifting ring 44 are different.

[0034] The hoisting structure 4 is connected to the connection hole 35 of the balancing structure 3 through the first hoisting chain 41 and the second hoisting ring 44. The bottom is connected to the load through the movable ring 42 and the hook 43. When the load tilts, the hoisting chains of different lengths can automatically adjust the force distribution through the movable ring 42 to achieve dynamic balance.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic balancing device for a hoisting machine, comprising a connecting ring (1); Its features are: The top end of the connecting ring (1) is provided with an installation structure (2); The bottom of the connecting ring (1) is provided with a balancing structure (3) on both sides. The balancing structure (3) includes a mounting ring (31), a snap ring (32), a balancing plate (33), a hanging hole (34), and a connecting hole (35). The mounting ring (31) is evenly fitted on the bottom of the connecting ring (1). The bottom of the mounting ring (31) is fitted with a snap ring (32). The bottom of the snap ring (32) is fitted with a balancing plate (33). The middle position inside the balancing plate (33) is provided with a hanging hole (34). The two sides inside the balancing plate (33) are provided with connecting holes (35). The bottom of the balancing structure (3) is fitted with a hoisting structure (4) on both sides.

2. A self-balancing device for a crane according to claim 1, characterized in that: The mounting structure (2) includes a mounting plate (21), mounting bolts (22) and a hanging ring (23). The hanging ring (23) is sleeved on the top of the connecting ring (1). The top of the hanging ring (23) is fixed with the mounting plate (21). The mounting bolts (22) pass through the corners of the mounting plate (21).

3. A self-balancing device for a crane according to claim 2, characterized in that: The mounting bolts (22) are symmetrically distributed on both sides of the mounting plate (21), and the side view of the hanging ring (23) is arc-shaped.

4. A self-balancing device for a crane according to claim 1, characterized in that: The mounting rings (31) are symmetrically distributed on both sides of the connecting ring (1), and the balancing plates (33) are symmetrically distributed on both sides of the connecting ring (1).

5. A self-balancing device for a crane according to claim 1, characterized in that: The connecting holes (35) are symmetrically distributed on both sides of the balance plate (33).

6. A self-balancing device for a crane according to claim 1, characterized in that: The hoisting structure (4) includes a first hoisting chain (41), a movable ring (42), a hook (43), and a second hoisting ring (44). The first hoisting chain (41) is sleeved on the inner side of the connection hole (35) at one end of the balance plate (33), and the second hoisting ring (44) is sleeved on the inner side of the connection hole (35) at the other end of the balance plate (33). The bottom ends of the first hoisting chain (41) and the second hoisting ring (44) are both sleeved with movable rings (42), and the bottom of the movable rings (42) is sleeved with hooks (43).

7. A self-balancing device for a crane according to claim 6, characterized in that: The first chain (41) and the second ring (44) are of different lengths.

Images