Automatic ton bag unhooking hanger

Abstract

The utility model relates to a ton bag automatic unhooking hanging bracket, including hanging bracket base, bearing seat assembly, rotating block assembly and electric connecting rod mechanism, the inside of four corners of hanging bracket base is equipped with bearing seat assembly, four corners outside is equipped with rotating block assembly, bearing seat assembly and rotating block assembly one to one correspondence, the rotation axis between adjacent bearing seat assembly is connected through electric connecting rod mechanism, electric connecting rod mechanism includes electric cylinder, rotating arm, connecting rod, rocker arm and electric cylinder base, electric cylinder sets up on electric cylinder base, rotating arm middle part rotation sets up on electric cylinder base, one end of rotating arm articulates telescopic handle of electric cylinder, the other end articulates connecting rod, and the both ends of connecting rod are respectively articulated rocker arm, and rocker arm connects corresponding rotation axis, and the rotation axis is inverted T type, and rotating block assembly corresponding rotation axis is equipped with rotating block. The utility model through electric connecting rod mechanism action completes the rotation of rotation axis, realizes the cooperation and the separation of rotation axis and rotating block to realize the automatic unhooking of hanging bracket, avoids the manual intervention completely, improves the operation safety and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lifting and transport equipment technology, specifically to an automatic unhooking crane for ton bags. Background Technology

[0002] Currently, ton bags (ton bags) are widely used in the storage and transportation of bulk materials (such as grains, chemical raw materials, and mineral products) due to their large capacity and ease of loading and unloading. During the lifting of ton bags, lifting equipment is typically used to suspend the bags' slings. Traditional lifting equipment requires operators to manually remove the ton bag slings from the hook or equipment during unloading; this process is called "unhooking." For ton bags weighing one ton or even several tons, manual unhooking presents the following problems: Safety hazard: Operators need to work under or near the suspended ton bag, which poses a great risk of injury from the ton bag falling or shaking. Inefficiency: Each cycle requires manual intervention, which limits the efficiency of automated production lines. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide an automatic unhooking gantry for ton bags. It has a reasonable structure, reliable operation, and high degree of automation. The rotation of the shaft is completed by the action of the electric linkage mechanism, which realizes the engagement and disengagement of the shaft and the rotating block, thereby realizing the automatic unhooking of the gantry, completely avoiding manual intervention and improving the safety and efficiency of operation.

[0004] The purpose of this utility model is achieved as follows: An automatic unhooking lifting frame for ton bags includes a frame base, bearing seat assemblies, rotating block assemblies, and electric linkage mechanisms. Bearing seat assemblies are located on the inner sides of the four corners of the frame base, and rotating block assemblies are located on the outer sides of the four corners. Each bearing seat assembly corresponds to a rotating block assembly. The rotating shafts of adjacent bearing seat assemblies are connected by electric linkage mechanisms. Two electric linkage mechanisms are symmetrically arranged. Each electric linkage mechanism includes an electric cylinder, a rotating arm, a connecting rod, a rocker arm, and an electric cylinder base. The electric cylinder is mounted on the electric cylinder base. The rotating arm is rotatably mounted on the electric cylinder base at its center. One end of the rotating arm is hinged to the telescopic rod of the electric cylinder, and the other end is hinged to the connecting rod. Both ends of the connecting rod are hinged to rocker arms, which are connected to corresponding rotating shafts. The rotating shafts are inverted T-shaped. The rotating block assemblies have rotating blocks corresponding to the rotating shafts.

[0005] Preferably, the bearing housing assembly includes a bearing housing and a rotating shaft, the rotating shaft being rotatably disposed within the bearing housing, and the bearing housing being fixed to the hanger base by bolts.

[0006] Preferably, the rotating block assembly further includes a rotating block shaft and a hanging plate, the rotating block is sleeved on the rotating block shaft, the rotating block shaft is supported between two hanging plates, and the hanging plates are fixed on the hanger base.

[0007] Preferably, the T-shaped bottom of the pivot is used to support the pivot block when hooked.

[0008] Preferably, one end of the rocker arm is sleeved on the top of the corresponding rotating shaft, the top of the rotating shaft is provided with a square head section corresponding to the rocker arm, and the rocker arm is provided with a square hole corresponding to the square head section, and the rocker arm drives the rotating shaft to rotate.

[0009] Preferably, the cylinder body of the electric cylinder is connected to the electric cylinder base via a mounting pin, and the electric cylinder base is provided with mounting ears corresponding to the electric cylinder.

[0010] Preferably, the middle part of the rotating arm is hinged to the electric cylinder base via a rotating arm intermediate shaft, and the electric cylinder base is provided with a support plate corresponding to the rotating arm intermediate shaft.

[0011] Preferably, the rotating shaft is rotatably connected to the bearing housing via a double-row tapered roller bearing.

[0012] Preferably, the hanger base is a welded component, including an outer frame, an inner frame, and a connecting pipe. The bearing seat assembly, the rotating block assembly, and the electric linkage mechanism are mounted on the outer frame. The inner frame is located inside the outer frame. The inner frame is fitted with lifting lugs. The inner frame and the outer frame are connected by a connecting pipe. One end of the connecting pipe connected to the inner frame is inclined downwards, so that the inner frame is lower than the outer frame.

[0013] The beneficial effects of this utility model are: Fully automatic remote unhooking: The linkage mechanism driven by the electric cylinder can achieve one-button remote control unhooking, and the operator does not need to approach the suspended ton bag, completely eliminating safety hazards.

[0014] Compact and reliable structure: It adopts two sets of symmetrically arranged electric linkage mechanisms to synchronously drive the rotating shafts and blocks at the four corners. The transmission path is short, the action synchronization is good, the force transmission is reliable, and the jamming phenomenon is avoided.

[0015] Dual-state locking: In the hooked state, the T-shaped structure of the rotating shaft provides a reliable mechanical limit on the rotating block, preventing it from disengaging due to accidental rotation during hoisting; in the unhooked state, the rotating block automatically flips by gravity, requiring no additional power, which is simple and effective.

[0016] Stable center of gravity: The base of the lifting frame adopts an "outer high and inner low" design, which places the lifting point (inner frame) at a lower position, lowering the center of gravity of the entire system, greatly improving the stability during the lifting of ton bags and reducing swaying. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an automatic unhooking crane for ton bags according to the present invention.

[0018] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0019] Figure 3 This is a schematic diagram of the internal structure of the bearing housing assembly.

[0020] Figure 4 This is a structural schematic diagram of the hanger base.

[0021] Figure 5 This is a schematic diagram showing the disengaged state of the rotating block and the rotating shaft.

[0022] Figure 6 This is a schematic diagram showing the hook (lifting) state of the rotating block and the rotating shaft.

[0023] in: Hanger base 1; outer frame 1.1; inner frame 1.2; connecting pipe 1.3; lifting lug 1.4; bearing housing assembly 2; bearing housing 2.1; rotating shaft 2.2; double row tapered roller bearing 2.3; rotating block assembly 3; rotating block 3.1, rotating block shaft 3.2; hanging plate 3.3; electric linkage mechanism 4; electric cylinder 4.1; rotating arm 4.2; connecting rod 4.3; rocker arm 4.4; electric cylinder base 4.5; mounting lug 4.5.1; support plate 4.5.2; mounting pin 4.6; rotating arm intermediate shaft 4.7; electric cylinder pin 4.8; rotating arm connecting rod shaft 4.9; rocker arm shaft 4.10. Detailed Implementation

[0024] See Figure 1-6This utility model relates to an automatic unhooking crane for ton bags, including a crane base 1, a bearing seat assembly 2, a rotating block assembly 3, and an electric linkage mechanism 4. The bearing seat assemblies 2 are located on the inner sides of the four corners of the crane base 1, and the rotating block assemblies 3 are located on the outer sides of the four corners. The bearing seat assemblies 2 and rotating block assemblies 3 correspond one-to-one. Each rotating block assembly 3 includes a rotating block 3.1, a rotating block shaft 3.2, and a lifting plate 3.3. The rotating block 3.1 is sleeved on the rotating block shaft 3.2, and the rotating block shaft 3.2 is supported between the two lifting plates 3.3. The lifting plates 3.3 are fixed to the crane. On the base 1, the bearing housing assembly 2 includes a bearing housing 2.1 and a rotating shaft 2.2. The rotating shaft 2.2 is rotatably mounted inside the bearing housing 2.1. The bearing housing 2.1 is fixed to the hanger base 1 by bolts. The rotating shafts of adjacent bearing housing assemblies 2 are connected by electric linkage mechanisms 4. Two electric linkage mechanisms 4 are symmetrically arranged. Each electric linkage mechanism 4 includes an electric cylinder 4.1, a rotating arm 4.2, a connecting rod 4.3, a rocker arm 4.4, and an electric cylinder base 4.5. The electric cylinder 4.1 is mounted on the electric cylinder base 4.5. The cylinder body of the electric cylinder 4.1 is connected to the electric cylinder base 4.5 via a mounting pin 4.6. The electric cylinder base 4.5 has mounting ears 4.5.1 corresponding to the electric cylinder 4.1. The middle part of the rotating arm 4.2 is hinged to the electric cylinder base 4.5 via a rotating arm intermediate shaft 4.7. The electric cylinder base 4.5 has a support plate 4.5.2 corresponding to the rotating arm intermediate shaft 4.7. One end of the rotating arm 4.2 is hinged to the telescopic rod of the electric cylinder 4.1 via an electric cylinder pin 4.8, and the other end is hinged to the middle part of the connecting rod 4.3 via a rotating arm connecting rod shaft 4.9. The connecting rod 4.3... Both ends are hinged to rocker arms 4.4 via rocker arm shafts 4.10. One end of the rocker arm 4.4 is sleeved on the top of the corresponding rotating shaft 2.2. The rotating shaft 2.2 is inverted T-shaped. The T-shaped bottom of the rotating shaft 2.2 is used to support the rotating block 3.1 when hooking. The rotating shaft 2.2 is driven to rotate 90° by an electric linkage mechanism 4 to disengage the rotating shaft 2.2 from the rotating block 3.1. The top of the rotating shaft 2.2 is provided with a square head section corresponding to the rocker arm 4.4. The rocker arm 4.4 is provided with a square hole corresponding to the square head section. The rocker arm 4.4 drives the rotating shaft 2.2 to rotate.

[0025] The rotating shaft 2.2 is rotatably connected to the bearing housing 2.1 via a double-row tapered roller bearing 2.3, and can withstand axial and radial loads.

[0026] The hanger base 1 is a welded component that provides structural support for the entire hanger. The hanger base 1 includes an outer frame 1.1, an inner frame 1.2, and a connecting pipe 1.3. The bearing seat assembly 2, the rotating block assembly 3, and the electric linkage mechanism 4 are mounted on the outer frame 1.1. The inner frame 1.2 is located inside the outer frame 1.1. The inner frame 1.2 is equipped with lifting lugs 1.4 for connection with the crane slings. The inner frame 1.2 and the outer frame 1.1 are connected by the connecting pipe 1.3. One end of the connecting pipe 1.3 that connects to the inner frame 1.2 is inclined downwards, making the inner frame 1.2 lower than the outer frame 1.1, effectively lowering the center of gravity of the hanger, enhancing stability, and reducing the swaying of the ton bags.

[0027] Working principle: Hook and lifting status: The electric cylinder 4.1 retracts, driving the rocker arm to swing 90° through the rotating arm 4.2 and connecting rod 4.3. The rocker arm 4.4 drives the rotating shaft 2.2 to rotate 90°. At this time, the T-shaped bottom of the rotating shaft 2.2 extends horizontally and is located below the rotating block 3.1, forming a rigid support for the rotating block 3.1, keeping the rotating block 3.1 horizontal. The ton bag sling can be safely hung on the rotating block 3.1.

[0028] Unhooked state: When unloading is required, the control cylinder 4.1 extends and drives the rocker arm 4.4 to swing 90° in the opposite direction through the rotating arm 4.2 and connecting rod 4.3. The rocker arm 4.4 drives the rotating shaft to rotate 90°, and the T-shaped bottom of the rotating shaft 2.2 rotates accordingly, and its supporting function is released. Due to the loss of support, the rotating block 3.1 flips downward around the rotating block 3.1 axis under the action of gravity, and the ton bag sling hanging on it then slides off, realizing automatic unhooking.

[0029] During operation, the crane moves the lifting frame above the ton bag, and the operator attaches the four lifting straps of the ton bag to four horizontal swivel blocks. After lifting, the weight of the ton bag is transferred to the lifting frame base and slings through the swivel blocks and shaft. Upon reaching the designated unloading point, the operator issues a command via remote control or console to activate the electric cylinder, driving the shaft to rotate 90°. The swivel blocks lose support and flip downwards, automatically detaching the ton bag's lifting straps and completing the unloading process.

[0030] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. An automatic unhooking lifting frame for ton bags, characterized in that: The device includes a hanger base, bearing housing assemblies, rotating block assemblies, and electric linkage mechanisms. Bearing housing assemblies are located on the inner sides of the four corners of the hanger base, and rotating block assemblies are located on the outer sides of the four corners. Each bearing housing assembly corresponds to a rotating block assembly. The rotating shafts of adjacent bearing housing assemblies are connected by electric linkage mechanisms, which are symmetrically arranged. Each electric linkage mechanism includes an electric cylinder, a rotating arm, a connecting rod, a rocker arm, and an electric cylinder base. The electric cylinder is mounted on the electric cylinder base. The rotating arm is rotatably mounted on the electric cylinder base at its center. One end of the rotating arm is hinged to the telescopic rod of the electric cylinder, and the other end is hinged to the connecting rod. Both ends of the connecting rod are hinged to rocker arms, which are connected to corresponding rotating shafts. The rotating shafts are inverted T-shaped, and the rotating block assemblies have rotating blocks corresponding to the rotating shafts.

2. The automatic unhooking crane for ton bags according to claim 1, characterized in that: The bearing housing assembly includes a bearing housing and a rotating shaft. The rotating shaft is rotatably disposed within the bearing housing, and the bearing housing is fixed to the hanger base by bolts.

3. The automatic unhooking crane for ton bags according to claim 1 or 2, characterized in that: The rotating block assembly also includes a rotating block shaft and a hanging plate. The rotating block is sleeved on the rotating block shaft, the rotating block shaft is supported between two hanging plates, and the hanging plates are fixed on the hanger base.

4. The automatic unhooking crane for ton bags according to claim 1, characterized in that: The T-shaped bottom of the pivot is used to support the pivot block when hooking.

5. An automatic unhooking crane for ton bags according to claim 1 or 2, characterized in that: One end of the rocker arm is sleeved on the top of the corresponding rotating shaft. The top of the rotating shaft has a square head section corresponding to the rocker arm, and the rocker arm has a square hole corresponding to the square head section. The rocker arm drives the rotating shaft to rotate.

6. The automatic unhooking crane for ton bags according to claim 1, characterized in that: The cylinder body of the electric cylinder is connected to the electric cylinder base via a mounting pin, and the electric cylinder base is provided with mounting ears corresponding to the electric cylinder.

7. The automatic unhooking crane for ton bags according to claim 1, characterized in that: The middle part of the rotating arm is hinged to the electric cylinder base via the intermediate shaft of the rotating arm, and the electric cylinder base is provided with a support plate corresponding to the intermediate shaft of the rotating arm.

8. The automatic unhooking crane for ton bags according to claim 2, characterized in that: The shaft is rotatably connected to the bearing housing via a double-row tapered roller bearing.

9. The automatic unhooking crane for ton bags according to claim 1, characterized in that: The hanger base is a welded component, including an outer frame, an inner frame, and a connecting pipe. The bearing seat assembly, the rotating block assembly, and the electric linkage mechanism are mounted on the outer frame. The inner frame is located inside the outer frame. The inner frame is equipped with lifting lugs. The inner frame and the outer frame are connected by a connecting pipe. One end of the connecting pipe connected to the inner frame is inclined downwards, so that the inner frame is lower than the outer frame.

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