An electric hoist and crane capable of automatically grabbing a material tank

Abstract

This utility model belongs to the field of crane technology, specifically relating to an electric lifting device and crane for automatically gripping material cans. The utility model includes: a lifting base; at least one set of clamping mechanisms installed on the lower end face of the lifting base; at least two lifting pulleys installed on the upper end face of the lifting base and connected to the lifting trolley via lifting wire ropes; the clamping mechanisms include two gripper assemblies installed on the lower end face of the lifting base and a dual-output motor; the dual-output motor drives the two gripper assemblies to open and close synchronously through a transmission assembly. This utility model changes the traditional chain hook type lifting device by setting up an independent lifting base and installing at least one set of clamping mechanisms on the lower end face of the lifting base to automatically grip the material can, thereby achieving complete automation of material can gripping. It solves the problem of relying on manual operation and increasing labor costs in the prior art, and ensures the stability of material gripping.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, specifically relating to an electric lifting device and crane that automatically grabs material tanks. Background Technology

[0002] A crane is a multi-action lifting machine capable of vertically lifting and horizontally moving heavy objects within a specific range; it is also known as an overhead crane, gantry crane, or hoist. Currently, most existing cranes use chain hook lifting devices, requiring manual attachment of the hooks to the load to be lifted. This lifting method has poor stability during operation and relies on manual operation, increasing labor costs.

[0003] For the hoisting and handling of material tanks, the tanks are typically large, making manual hooking difficult. Furthermore, the tanks are prone to violent shaking during hoisting, further increasing the risk of accidents. Therefore, the applicant has designed an electric lifting device and corresponding crane capable of automatically grabbing material tanks to improve operational safety, stability, and automation. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as reliance on manual operation, poor stability, and easy violent shaking of the material tank, and to provide a fully automated, highly safe, and highly stable electric lifting device and crane for automatically grabbing material tanks.

[0005] The technical solution adopted by this utility model to solve its technical problem is: As a first aspect, this utility model provides an electric lifting device for automatically gripping material containers, comprising: Lifting base; At least one set of clamping mechanisms is installed on the lower end face of the lifting base; At least two lifting pulleys are installed on the upper surface of the lifting base and connected to the lifting trolley via lifting wire ropes; The clamping mechanism includes two gripper assemblies and a dual-output motor mounted on the lower end face of the lifting base; the dual-output motor drives the two gripper assemblies to open and close synchronously through a transmission assembly.

[0006] Furthermore, the gripper assembly includes a mounting bracket fixedly mounted on the lifting base, grippers slidably mounted on the mounting bracket via a sliding module, a maximum limit switch and a minimum limit switch mounted on the mounting bracket, and a lifting point limiter mounted between the maximum limit switch and the minimum limit switch.

[0007] Furthermore, the clamping mechanism is provided in two sets; the two sets of clamping mechanisms are arranged in parallel, and the four gripper assemblies are respectively installed at the four corners of the lower end face of the lifting base.

[0008] Furthermore, the gripping side of the gripper is provided with a laser ranging module for detecting the opening and closing of the two grippers; An anti-collision switch is provided on the side opposite to the gripping side of the gripper to prevent excessive impact from the gripper.

[0009] Furthermore, the transmission assembly includes a lead screw coaxially arranged with the output shaft of the dual-output motor and a nut seat that slides with the lead screw; The gripper is fixedly connected to the nut seat.

[0010] Furthermore, the sliding module includes a guide rail disposed inside the mounting bracket and a slider that slides with the guide rail; The nut seat is fixedly connected to the slider.

[0011] Furthermore, it also includes a hook mechanism installed at the middle position of the lower end face of the hoisting seat; the clamping mechanism and the hook mechanism are used simultaneously or not at the same time.

[0012] Secondly, this utility model also provides a crane, including a main beam, a rail, a lifting trolley slidably mounted on the rail, and an electric lifting device for automatically grabbing material containers as described above, which is connected to the lifting trolley via a lifting wire rope.

[0013] Furthermore, a cable storage cylinder for collecting and storing cables is installed on the upper end face of the hoisting base.

[0014] The beneficial effects of this utility model of an electric lifting device and crane for automatically grabbing material tanks are: This invention changes the traditional chain hook lifting device by setting up an independent lifting base and installing at least one set of clamping mechanisms on the lower end face of the lifting base to automatically grasp the material can, thus achieving full automation of material can grasping. The clamping mechanism includes two gripper assemblies and a dual-output motor. The dual-output motor synchronously drives the two gripper assemblies to open and close, ensuring the synchronicity of the movement of the two gripper assemblies in one clamping mechanism. This solves the problem of relying on manual operation and increasing labor costs in existing technologies, and ensures the stability of material grasping.

[0015] The gripper assembly of this utility model uses a sliding module for mounting and sliding, and works with a dual-output motor and transmission components to open and close the two grippers. Each gripper assembly is equipped with a maximum limit switch, a minimum limit switch, and a lifting point limit to limit the gripper, preventing the gripper from sliding excessively on the mounting frame and avoiding the gripper from falling off the mounting frame, thus further ensuring the stability and safety of material gripping.

[0016] Meanwhile, this utility model has a hook mechanism in the middle of the lower end face of the lifting base. On the one hand, when the clamping mechanism fails to open or close or malfunctions, the material tank can be lifted by the hook mechanism. On the other hand, the clamping mechanism or the hook mechanism or both can be used simultaneously according to the shape and requirements of the object to be lifted, thereby increasing the applicability of the lifting. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a front view of the electric lifting device in an embodiment of this utility model.

[0019] Figure 2 yes Figure 1 The left view; Figure 3 yes Figure 1 Top view.

[0020] Figure 4 This is a schematic diagram of the gripper assembly in an embodiment of the present invention.

[0021] Figure 5 This is an internal perspective view of the gripper assembly in an embodiment of this utility model.

[0022] Figure 6 This is a connection diagram of the electric lifting device and the lifting trolley in an embodiment of this utility model.

[0023] In the diagram: 1. Lifting base; 2. Clamping mechanism; 21. Gripper assembly; 221. Mounting bracket; 222. Sliding module; 2221. Guide rail; 2222. Slider; 223. Gripper; 224. Maximum limit switch; 225. Minimum limit switch; 226. Lifting point limit; 22. Dual output motor; 3. Lifting pulley; 4. Transmission assembly; 41. Lead screw; 42. Nut seat; 5. Laser ranging module; 6. Anti-collision switch; 7. Hook mechanism; 8. Cable storage cylinder; 9. Anti-sway mechanism; 91. Anti-sway hole; 92. Anti-sway rod. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] like Figures 1-6The present invention provides a specific embodiment of an electric lifting device for automatically gripping material tanks, including a lifting base 1, at least one set of clamping mechanisms 2 installed on the lower end face of the lifting base 1, and at least two lifting pulleys 3 installed on the upper end face of the lifting base 1. The lifting pulleys 3 are connected to the lifting trolley via lifting wire ropes. The clamping mechanism 2 includes two gripper assemblies 21 and a dual-output motor 22 installed on the lower end face of the lifting base 1. The dual-output motor 22 drives the two gripper assemblies 21 to open and close synchronously through a transmission assembly 4.

[0026] This invention changes the traditional chain hook lifting device by setting up an independent lifting base 1 and installing at least one set of clamping mechanisms 2 on the lower end face of the lifting base 1 to automatically grasp the material can, thereby achieving complete automation of material can grasping. The clamping mechanism 2 includes two gripper assemblies 21 and a dual-output motor 22. The dual-output motor 22 synchronously drives the two gripper assemblies 21 to open and close, ensuring the synchronicity of the movement of the two gripper assemblies 21 in the clamping mechanism 2. This solves the problem of relying on manual operation and increasing labor costs in the prior art, and ensures the stability of material grasping.

[0027] As a preferred implementation method, such as Figures 1 to 3 As shown, in this embodiment, two sets of clamping mechanisms 2 are provided, and the two sets of clamping mechanisms 2 are arranged in parallel. Four gripper assemblies 21 are respectively installed at the four corners of the lower end face of the lifting base 1. The four gripper assemblies 21 are located at the four corners of the lifting base 1, which can be used for synchronous gripping of material cans with four arc-shaped lifting lugs, pin-type lifting lugs, or other lifting lugs, ensuring the stability and balance of the material can gripping. Specifically, in this embodiment, the dual-output motor 22 adopts a K-series three-in-one reducer motor. The transmission assembly 4 includes a lead screw coaxially arranged with the output shaft of the dual-output motor 22 and a nut seat 42 that slides with the lead screw. The grippers 223 are fixedly connected to the nut seat 42. The dual-output motor 22 drives the lead screw to rotate, realizing the opening and closing of the two grippers 223, and realizing the gripping of the material can.

[0028] It should be understood that a set of clamping mechanisms 2 can also be provided, which is suitable for lifting and handling material tanks with two lifting lugs. The number of clamping mechanisms 2 can be adaptively selected and set according to the needs of gripping material tanks. In this embodiment, the number of clamping mechanisms 2 is not absolutely limited.

[0029] See Figure 4As shown, the gripper assembly 21 in this embodiment includes a mounting frame 221 fixedly mounted on the lifting base 1, a gripper 223 slidably mounted on the mounting frame 221 via a sliding module 222, a maximum limit switch 224 and a minimum limit switch 225 mounted on the mounting frame 221, and a lifting point limiter 226 installed between the maximum limit switch 224 and the minimum limit switch 225. The maximum limit switch 224 and the minimum limit switch 225 are used to limit the position of the gripper 223, preventing excessive movement of the gripper 223 on the mounting frame 221. The lifting point limiter 226 provides mechanical limitation with the gripper 223, further limiting the sliding position of the gripper 223 on the sliding module 222.

[0030] like Figure 4 and Figure 5 As shown, in this embodiment, the gripper 223 is equipped with a laser ranging module 5 for detecting the opening and closing of the two grippers 223 on its gripping side, and an anti-collision switch 6 is provided on the side opposite to the gripping side of the gripper 223 to prevent excessive impact from the grippers 223. That is, each gripper 223 is equipped with gripping detection and opening / closing detection, and an anti-collision detection is provided on the outside of the gripper 223 to ensure that the grippers 223 perform stable and safe opening and closing actions.

[0031] As a preferred embodiment, see [link to previous document]. Figure 5 In this embodiment, the sliding module 222 includes a guide rail 2221 disposed inside the mounting bracket 221, a slider 2222 that slides with the guide rail 2221, and a nut seat 42 that is fixedly connected to the slider 2222. It should be understood that in this embodiment, the guide rail 2221 is arranged along the gripping direction of the gripper 223 to ensure that the opening and closing action of the gripper 223 is performed normally.

[0032] Based on the actual needs of lifting and transferring material tanks, the electric lifting device in this embodiment also includes a hook mechanism 7 installed at the middle position of the lower end face of the lifting base 1; the clamping mechanism 2 and the hook mechanism 7 can be used simultaneously or not simultaneously. In this embodiment, the hook mechanism 7 is provided at the middle position of the lower end face of the lifting base 1. On the one hand, when the clamping mechanism 2 malfunctions or fails, the material tank can be lifted by the hook mechanism 7. On the other hand, depending on the shape and requirements of the object being lifted, either the clamping mechanism 2 or the hook mechanism 7, or both, can be used, increasing the applicability of the lifting operation. The hook mechanism 7 in this embodiment includes a hook, which is a hook commonly used by those skilled in the art. Its shape and size can be selected according to the specific application scenario; the specific structure of the hook will not be described in detail here.

[0033] In this embodiment, during the tank installation phase, the hook mechanism 7 lifts and installs components or equipment using the hook. During the tank handling process, if the gripper 223 fails to open or close, the hook mechanism 7 lifts the tank to prevent the workshop from being unable to handle the tank under special circumstances.

[0034] Based on the aforementioned electric lifting device for automatically grabbing material containers, this utility model also provides a crane, such as... Figure 6 As shown, the system includes a main beam, a track, a lifting trolley slidably mounted on the track, and an electric lifting device, such as the one described above, that automatically grips the material container and is connected to the lifting trolley via a lifting wire rope. It should be understood that the main beam, track, lifting trolley, and lifting wire rope in this embodiment are essential components of a crane. Devices that can be purchased or easily obtained in the prior art can be used in this embodiment, and their specific structures will not be described in detail here.

[0035] It should be further explained that the upper end face of the hoisting base 1 in this embodiment is equipped with a cable storage cylinder 8 for collecting and storing cables. In actual application, the cable that provides power control for the crane hangs down from the hoisting trolley and is stored in the cable storage cylinder 8 during the lifting process, which facilitates the storage and collection of cables.

[0036] like Figure 2 and Figure 6 As shown, the crane in this embodiment also includes an anti-sway mechanism 9. The anti-sway mechanism 9 includes at least one anti-sway hole 91 provided on the upper end face of the lifting base 1 and an anti-sway rod 92 provided on the lifting trolley. The anti-sway rod 92 is inserted into the anti-sway hole 91. Specifically, in this embodiment, an anti-sway hole 91 is provided at one diagonal of the lifting base 1, and correspondingly, two cooperating anti-sway rods 92 are provided on the lower end face of the lifting trolley. When a transport operation is performed, the lifting base 1 is raised until the anti-sway rod 92 is inserted into the anti-sway hole 91, which achieves the purpose of rigid anti-swaying and ensures that the lifting base 1 will not experience strong swaying due to the traction force of the wire rope alone during the transport process, thus ensuring the stability and safety of the transport process.

[0037] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. An electrically powered spreader for automatically grabbing a bin, characterized in that, include: Lifting bracket (1); At least one set of clamping mechanisms (2) is installed on the lower end face of the lifting base (1); At least two lifting pulleys (3) are installed on the upper surface of the lifting base (1) and connected to the lifting trolley via lifting wire ropes; The clamping mechanism (2) includes two gripper assemblies (21) and a dual-output motor (22) installed on the lower end face of the lifting base (1); the dual-output motor (22) drives the two gripper assemblies (21) to open and close synchronously through the transmission assembly (4).

2. The electric lifting device for automatically gripping material containers according to claim 1, characterized in that: The gripper assembly (21) includes a mounting bracket (221) fixedly mounted on the lifting base (1), a gripper (223) slidably mounted on the mounting bracket (221) via a sliding module (222), a maximum limit switch (224) and a minimum limit switch (225) mounted on the mounting bracket (221), and a lifting point limit (226) mounted between the maximum limit switch (224) and the minimum limit switch (225).

3. The electric lifting device for automatically gripping material containers according to claim 1, characterized in that: The clamping mechanism (2) is provided in two sets; the two sets of clamping mechanisms (2) are arranged in parallel, and the four gripper assemblies (21) are respectively installed at the four corners of the lower end face of the lifting base (1).

4. The electric hoist for automatically grabbing a bin according to claim 2, characterized in that: The gripper (223) is provided with a laser ranging module (5) for detecting the opening and closing of the two grippers (223) on the gripping side; An anti-collision switch (6) is provided on the side opposite to the gripping side of the gripper (223) to prevent excessive impact from the gripper (223).

5. The electric lifting device for automatically gripping material containers according to claim 2, characterized in that: The transmission assembly (4) includes a lead screw coaxially arranged with the output shaft of the dual-output motor (22) and a nut seat (42) that slides with the lead screw. The gripper (223) is fixedly connected to the nut seat (42).

6. The electric lifting device for automatically gripping material containers according to claim 5, characterized in that: The sliding module (222) includes a guide rail (2221) disposed inside the mounting bracket (221) and a slider (2222) that slides with the guide rail (2221). The nut seat (42) is fixedly connected to the slider (2222).

7. The electric lifting device for automatically gripping material containers according to claim 1, characterized in that: It also includes a hook mechanism (7) installed at the middle position of the lower end face of the lifting base (1); the clamping mechanism (2) and the hook mechanism (7) are used simultaneously or not at the same time.

8. A crane, characterized in that, The device includes a main beam, a track, a lifting trolley slidably mounted on the track, and an electric lifting device for automatically gripping material containers as described in any one of claims 1-7, which is connected to the lifting trolley via a lifting wire rope.

9. A crane according to claim 8, characterized in that: The upper end face of the hoisting base (1) is equipped with a cable storage cylinder (8) for collecting and storing cables.

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