Endless chain electric single-beam crane

Abstract

The utility model discloses a kind of single-beam electric hoist of ring chain type, including single-beam body, ring chain electric hoist, lifting hook and drive box, the side of single-beam body is provided with ring chain electric hoist, and the lifting hook is connected on the ring chain electric hoist by ring chain body, the top of the side of lifting hook is provided with drive box, and the inside of drive box one side is provided with rack, the bottom end of rack extends to the outside of drive box, and the bottom end of rack is provided with anti-drop closure, rack one side drive box is provided with gear engaged with rack in, and the outside of drive box is fixed with driving motor, the output end of driving motor is connected with gear by roller shaft.The utility model is equipped with single-beam body, ring chain electric hoist, lifting hook, anti-drop closure, clamping block, supporting block, clamping groove, drive box, gear, rack and driving motor, prevent heavy object from lifting hook due to accidental shaking, vibration etc. and shake out, improve the convenience and security of operation.

Description

Technical Field

[0001] This utility model relates to the field of single-girder crane technology, specifically a chain-type electric single-girder crane. Background Technology

[0002] The electric chain hoist is a light-duty, multi-purpose lifting machine that runs on rails. The electric motor of the chain hoist drives the gearbox, causing the chain body to circulate under the guidance of the sprocket, thereby raising or lowering the hook to achieve the vertical lifting and lowering of heavy objects.

[0003] Generally, the hook structure of a chain single-girder crane is relatively simple, and its opening is often in an open state. When the load is subjected to vibration, shaking or other external forces, it may slip off the hook, causing the load to fall and causing serious injury and loss to personnel and equipment below. Some hooks use spring plates installed at the opening to seal the hook opening and prevent the load from slipping off. However, after long-term use, the spring plates are prone to fatigue and deformation, resulting in weakened elasticity and inability to effectively seal the hook opening, thus reducing the anti-slip effect. Utility Model Content

[0004] The purpose of this utility model is to provide a chain-type electric single-girder crane to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a chain-type electric single-girder crane, comprising a single-girder body, a chain hoist, a hook, and a drive box. A chain hoist is provided on one side of the single-girder body, and a hook is connected to the chain hoist via a chain body. A drive box is provided at the top of one side of the hook, and a rack is provided on one side inside the drive box. The bottom end of the rack extends to the outside of the drive box, and an anti-detachment seal is provided at the bottom end of the rack. A gear meshing with the rack is provided inside the drive box on one side of the rack, and a drive motor is fixed to the outside of the drive box. The output end of the drive motor is connected to the gear via a roller.

[0006] Preferably, end beams are provided on both sides of the bottom of the single beam body, and buffer cylinders are provided on the side of the end beams closest to the bottom of the single beam body.

[0007] Preferably, each of the buffer cylinders has a support rod inside it via a rigid spring, and one end of each support rod is connected to the bottom side of the single beam body. Each of the buffer cylinders has a damping block inside it at one end, and one end of each damping block is connected to the rigid spring.

[0008] Preferably, a pressure sensor is provided at the bottom of the hook, and the pressure sensor is embedded in a pre-set groove inside the hook.

[0009] Preferably, the buffer cylinder has limit grooves on both sides inside, and the support rod has limit blocks on both sides of one end that match the limit grooves.

[0010] Preferably, the bottom end of the anti-detachment sealing component is provided with a locking block, and one side of the hook is provided with a support block, and the top surface of the support block is provided with a locking groove that matches the locking block.

[0011] Preferably, the card block is made of a magnetic block, and the card slot is coated with a magnetic coating.

[0012] Preferably, a guide block is provided on one side of the rack, and a guide groove matching the guide block is provided on one side inside the drive box.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This chain-type electric single-girder crane is equipped with a single-girder body, a chain electric hoist, a hook, an anti-detachment seal, a locking block, a support block, a slot, a drive box, gears, a rack, and a drive motor. When the load is suspended in the hook, the drive motor drives the gear to rotate, and the rack meshes with the gear, causing the rack to move down and drive the anti-detachment seal down until the locking block connects with the slot, thus forming a reliable barrier to prevent the load from falling out of the hook due to accidental shaking or vibration. The locking block is made of a magnetic block, and the slot is coated with a magnetic coating. The magnetic adsorption increases the stability of the connection between the anti-detachment seal and the hook. At the same time, the anti-detachment process is driven by the drive motor and is carried out automatically after the load is hung, without the need for manual operation by the operator, reducing errors caused by human factors and improving the convenience and safety of operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is an enlarged structural diagram of the hook of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a schematic cross-sectional view of the drive box structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the buffer cylinder of this utility model.

[0020] In the diagram: 1. Single beam main body; 2. End beam; 3. Chain hoist; 4. Hook; 5. Buffer cylinder; 6. Drive box; 7. Drive motor; 8. Anti-detachment seal; 9. Pressure sensor; 10. Locking block; 11. Locking groove; 12. Support block; 13. Gear; 14. Rack; 15. Guide block; 16. Support rod; 17. Damping block; 18. Rigid spring; 19. Limiting groove; 20. Limiting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5 The present invention provides an embodiment of a chain electric single-girder crane, comprising a single-girder body 1, a chain electric hoist 3, a hook 4 and a drive box 6. The chain electric hoist 3 is provided on one side of the single-girder body 1, and the hook 4 is connected to the chain electric hoist 3 through the chain body.

[0023] A pressure sensor 9 is installed at the bottom of the hook 4, and the pressure sensor 9 is embedded in a pre-set groove inside the hook 4;

[0024] Once the load is suspended inside the hook 4, the pressure sensor 9 senses the weight of the load. By converting the pressure signal into an electrical signal and transmitting it to the control system or display device, the operator can intuitively understand the weight of the load being lifted, avoid overloading, and ensure that the lifting process is carried out within the safe load range.

[0025] A drive box 6 is provided at the top of one side of the hook 4, and a rack 14 is provided on one side inside the drive box 6. The bottom end of the rack 14 extends to the outside of the drive box 6, and an anti-detachment sealing member 8 is provided at the bottom end of the rack 14.

[0026] A gear 13 that meshes with the rack 14 is provided in the drive box 6 on one side of the rack 14, and a drive motor 7 is fixed to the outside of the drive box 6. The output end of the drive motor 7 is connected to the gear 13 through a roller.

[0027] The bottom end of the anti-detachment sealing component 8 is provided with a locking block 10, and one side of the hook 4 is provided with a support block 12. The top surface of the support block 12 is provided with a slot 11 that matches the locking block 10.

[0028] The drive motor 7 drives the gear 13 to rotate, and the rack 14 meshes with the gear 13, causing the rack 14 to move down and drive the anti-detachment sealing part 8 down until the locking block 10 connects with the locking groove 11, thereby forming a reliable block to prevent the heavy object from falling out of the hook 4 due to accidental shaking, vibration, etc.

[0029] The locking block 10 is made of a magnetic block, and the slot 11 is coated with a magnetic coating. The magnetic adsorption increases the stability of the connection between the anti-detachment sealing part 8 and the hook 4. At the same time, the anti-detachment process is driven by the drive motor 7 and is carried out automatically after the heavy object is hung. No manual operation is required, which reduces the error caused by human factors and improves the convenience and safety of operation.

[0030] A guide block 15 is provided on one side of the rack 14, and a guide groove matching the guide block 15 is provided on one side inside the drive box 6, which plays a guiding and limiting role when the rack 14 moves.

[0031] Both sides of the bottom of the single beam body 1 are provided with end beams 2. The end beams 2 serve as supports and connections, connecting the single beam body 1 to the wheel set, so that the single beam body 1 can run smoothly on the track.

[0032] Furthermore, each end beam 2 is provided with a buffer cylinder 5 on the side near the bottom of the single beam body 1. Each buffer cylinder 5 is provided with a support rod 16 through a rigid spring 18, and one end of the support rod 16 is connected to the bottom side of the single beam body 1.

[0033] The buffer cylinder 5 and the support rod 16 can form a triangular structure between the main body 1 of the single beam and the end beam 2, which effectively improves the deformation resistance of the whole system, reduces structural swaying and deformation caused by load or running vibration, and ensures that the crane works safely and reliably.

[0034] One end of each buffer cylinder 5 is provided with a damping block 17, and one end of each damping block 17 is connected to a rigid spring 18.

[0035] When encountering vibration, impact, or sudden load changes during operation, the rigid spring 18 will compress or elongate to absorb and store some energy through elastic deformation, thereby reducing the amplitude of vibration and impact. At the same time, the damping block 17 will consume some energy, further weakening the vibration. Also, when the rigid spring 18 extends or retracts, the damping block 17 will generate a damping force opposite to the direction of movement, hindering the rapid extension or retraction of the rigid spring 18, thereby reducing the amplitude of shaking.

[0036] Limiting grooves 19 are provided on both sides inside the buffer cylinder 5, and limiting blocks 20 matching the limiting grooves 19 are provided on both sides of one end of the support rod 16, which can limit the movement trajectory and range of the support rod 16 inside the buffer cylinder 5.

[0037] The specific models and specifications of the chain hoist 3, pressure sensor 9, and drive motor 7 need to be determined based on the specifications and parameters of the device. The selection and calculation method is existing technology, so it will not be described in detail here.

[0038] Working Principle: In this embodiment, when the load is suspended in the hook 4, the pressure sensor 9 senses the weight of the load. It converts the pressure signal into an electrical signal and transmits it to the control system or display device. The operator can intuitively understand the weight of the load being lifted, avoiding overloading and ensuring the lifting process is within a safe load range. Then, the drive motor 7 drives the gear 13 to rotate, and the rack 14 meshes with the gear 13, causing the rack 14 to move downwards, pulling the anti-detachment seal 8 downwards until the locking block 10 connects with the slot 11, thus forming a reliable barrier to prevent the load from accidentally shaking or vibrating out of the hook 4. The locking block 10 is made of a magnet, and the slot 11 is coated with a magnetic coating. Magnetic adsorption increases the stability of the connection between the anti-detachment seal 8 and the hook 4. The anti-detachment process is driven by the drive motor 7 and is automatic after the load is hung, requiring no manual operation from the operator. This reduces human error and improves operational convenience and safety. Afterwards, the chain hoist 3 operates, driving the hook 4 via the chain. The crane lifts heavy objects by raising them. End beams 2 are installed on both sides of the bottom of the single beam body 1. The end beams 2 serve as supports and connections, linking the single beam body 1 to the wheel set, allowing the single beam body 1 to run smoothly on the track. Each end beam 2 is connected to the single beam body 1 via a buffer cylinder 5 and a support rod 16. The buffer cylinder 5 and support rod 16 form a triangular structure between the single beam body 1 and the end beams 2, effectively improving the overall system's resistance to deformation and reducing structural swaying and deformation caused by load or operational vibration, ensuring the crane's safe and reliable operation. Simultaneously, when encountering vibration, impact, or sudden load changes during operation, the rigid spring 18 will compress or elongate, absorbing and storing some energy through elastic deformation, thereby reducing the amplitude of vibration and impact. At the same time, the damping block 17 will dissipate some energy, further weakening the vibration. Furthermore, when the rigid spring 18 extends or retracts, the damping block 17 generates a damping force opposite to the direction of movement, hindering the rapid extension and retraction of the rigid spring 18, thus reducing the amplitude of shaking.

[0039] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0042] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A chain-type electric single-girder crane, characterized in that, The device includes a single beam body (1), a chain hoist (3), a hook (4), and a drive box (6). The chain hoist (3) is provided on one side of the single beam body (1), and the hook (4) is connected to the chain hoist (3) through the chain body. The drive box (6) is provided at the top of one side of the hook (4), and a rack (14) is provided on one side inside the drive box (6). The bottom end of the rack (14) extends to the outside of the drive box (6), and an anti-detachment sealing part (8) is provided at the bottom end of the rack (14). A gear (13) meshing with the rack (14) is provided in the drive box (6) on one side of the rack (14), and a drive motor (7) is fixed to the outside of the drive box (6). The output end of the drive motor (7) is connected to the gear (13) through a roller.

2. A chain-type electric single-girder crane according to claim 1, characterized in that: Both sides of the bottom of the single beam body (1) are provided with end beams (2), and the side of the end beam (2) near the bottom of the single beam body (1) is provided with a buffer cylinder (5).

3. A chain-type electric single-girder crane according to claim 2, characterized in that: The buffer cylinder (5) is equipped with a support rod (16) inside through a rigid spring (18), and one end of the support rod (16) is connected to the bottom side of the single beam body (1). The buffer cylinder (5) is equipped with a damping block (17) at one end inside, and one end of the damping block (17) is connected to the rigid spring (18).

4. A chain-type electric single-girder crane according to claim 1, characterized in that: A pressure sensor (9) is provided at the bottom of the hook (4), and the pressure sensor (9) is embedded in a pre-set groove inside the hook (4).

5. A chain-type electric single-girder crane according to claim 3, characterized in that: The buffer cylinder (5) has limit grooves (19) on both sides inside, and the support rod (16) has limit blocks (20) matching the limit grooves (19) on both sides of one end.

6. A chain-type electric single-girder crane according to claim 1, characterized in that: The bottom end of the anti-detachment sealing component (8) is provided with a locking block (10), and a support block (12) is provided on one side inside the hook (4). The top surface of the support block (12) is provided with a slot (11) that matches the locking block (10).

7. A chain-type electric single-girder crane according to claim 6, characterized in that: The card block (10) is made of a magnetic block, and the card slot (11) is coated with a magnetic coating.

8. A chain-type electric single-girder crane according to claim 1, characterized in that: A guide block (15) is provided on one side of the rack (14), and a guide groove matching the guide block (15) is provided on one side inside the drive box (6).

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