A single-double grip hoist device

Abstract

The present disclosure relates to a single-double-grip hoist device, comprising a detachably connected upper part and lower part, the upper part is provided with double lifting lugs, the double lifting lugs can be hung on the double hooks of a trolley, and the stress point is located at the center position of the double hooks, and the lower part is used for connecting with the single-double-grip. Through the above technical scheme, the single-double-grip hoist device improves the lifting stability and safety, and is convenient to disassemble, assemble and maintain.

Description

Technical Field

[0001] The present disclosure relates to the technical field of traveling crane spreaders, and in particular, to a spreader device with single-double holding clamps. Background Art

[0002] In industrial production, traveling cranes hoist calcium carbide lumps and replace pot bodies through single-double holding clamps. At present, the hooks matched with single-double holding clamps are mostly of double-hook structure, while the single-double holding clamps have a single lifting ear structure, which makes the holding clamps can only be hung on one side of the double hook, and the stress point deviates from the center of gravity, resulting in lateral inclination of the hook. During long-term hoisting of heavy objects, the unbalanced stress generated by the lateral inclination will not only damage the hook hoisting device, shorten the service life of the equipment, but also increase the occurrence frequency of equipment failures and affect the normal production progress. In addition, the lateral inclination of the hook also brings inconvenience to the operation of operators and increases the operation difficulty. Summary of Utility Model

[0003] The purpose of the present disclosure is to provide a spreader device with single-double holding clamps, which improves hoisting stability and safety, and is convenient for disassembly, assembly and maintenance.

[0004] In order to achieve the above objective, the present disclosure provides a spreader device with single-double holding clamps, comprising an upper part and a lower part that are detachably connected, the upper part is provided with double lifting ears, the double lifting ears can be hung on the double hooks of a traveling crane, and make the stress point located at the center of the double hooks, and the lower part is used for connecting with the single-double holding clamps.

[0005] Optionally, the upper part and the lower part are connected through a first shaft pin.

[0006] Optionally, the upper part comprises two sets of connection assemblies, the two sets of connection assemblies are arranged at intervals on the upper part of the lower part, and the double lifting ears are connected with the two sets of connection assemblies in one-to-one correspondence.

[0007] Optionally, each set of the connection assemblies comprises two connection plates symmetrically arranged on opposite sides of the lower part, the double lifting ears comprise two U-shaped ear plates, one end of the U-shaped ear plate is connected to one of the two opposite connection plates, and the other end is connected to the other of the two opposite connection plates.

[0008] Optionally, the connection plate is provided with a first connection hole, the lower part is provided with a second connection hole corresponding to the first connection hole, and the first shaft pin is fittingly connected with the second connection hole and the two first connection holes.

[0009] Optionally, the upper end of the connection plate is provided with a positioning groove, the end of the U-shaped ear plate is inserted into the corresponding positioning groove, and is welded and connected to the corresponding positioning groove.

[0010] Optionally, a reinforcing rib is provided between the U-shaped ear plate and the corresponding connecting plate.

[0011] Optionally, the lower part includes a mounting base, the upper part is connected to the upper part of the mounting base, the lower part of the mounting base is constructed as a triangular structure with the tip pointing downwards, and the lower part of the mounting base is connected to a single or double clamp via a second pivot pin.

[0012] Optionally, both the upper part and the lower part are made of steel plate.

[0013] Optionally, the spacing between the double lugs is the same as the spacing between the double hooks.

[0014] Through the above technical solution, in the single and double clamp lifting device of this disclosure, since the upper and lower parts are detachably connected, it is convenient to replace the upper and lower parts locally, which facilitates later maintenance. Since the upper part is equipped with double lifting lugs, the double lifting lugs can be hooked on the double hooks of the gantry crane, and the stress point is ensured to be in the center position of the double hooks, ensuring the load balance of the lifting device. In this way, during the lifting process, the load can be evenly distributed on the double lifting lugs and the double hooks of the gantry crane, avoiding the lifting device tilting, deformation or breakage caused by uneven stress, reducing the risk of material falling, significantly improving the stability and safety of the lifting operation, and at the same time facilitating the lifting operation for the operator and reducing the difficulty of operation.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the single / double clamp lifting device provided in the embodiments of this disclosure; Figure 2 This is a front view of the single / double clamp lifting device provided in the embodiments of this disclosure.

[0017] Explanation of reference numerals in the attached drawings: 1. Upper part; 2. Lower part; 21. Mounting base; 3. Double lifting lugs; 31. U-shaped lug plate; 4. First shaft pin; 5. Connecting plate; 51. First connecting hole; 52. Positioning groove; 6. Reinforcing rib; 7. Second shaft pin. Detailed Implementation

[0018] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0019] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the relative positions of corresponding components in the direction of gravity when they are in use. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not imply sequentiality or importance. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0020] According to exemplary embodiments of this disclosure, reference is made to Figure 1 and Figure 2 As shown, a single and double clamp lifting device is provided, including an upper part 1 and a lower part 2 that are detachably connected. The upper part 1 is provided with double lifting lugs 3, which can be hung on the double hooks of the crane and the force point is located at the center of the double hooks. The lower part 2 is used to connect with the single and double clamps.

[0021] Through the above technical solution, in the single and double clamp lifting device of this disclosure, since the upper part 1 and the lower part 2 are detachably connected, it is convenient to partially replace the upper part 1 and the lower part 2, which facilitates later maintenance. Since the upper part 1 is equipped with double lifting lugs 3, the double lifting lugs 3 can be hung on the double hooks of the gantry crane, and the force point is ensured to be in the center position of the double hooks, ensuring the force balance of the lifting device. In this way, during the lifting process, the load can be evenly distributed on the double lifting lugs 3 and the double hooks of the gantry crane, avoiding the lifting device tilting, deformation or breakage caused by uneven force, reducing the risk of material falling, significantly improving the stability and safety of the lifting operation, and at the same time facilitating the lifting operation for the operator and reducing the difficulty of operation.

[0022] According to exemplary embodiments of this disclosure, referring to Figure 1 and Figure 2 As shown, the upper part 1 and the lower part 2 can be connected by the first axle pin 4. This arrangement ensures the stability of the connection, enabling it to withstand the load during hoisting, and also facilitates the separation of the upper part 1 and the lower part 2 when needed, providing convenience for the maintenance of the device and the replacement of components.

[0023] According to exemplary embodiments of this disclosure, referring to Figure 1 and Figure 2As shown, the upper part 1 includes two sets of connecting components, which are spaced apart on the upper part of the lower part 2. The double lifting lugs 3 are connected to the two sets of connecting components one-to-one. In the above technical solution, the arrangement of the two sets of connecting components provides a stable installation foundation for the double lifting lugs 3. The spaced arrangement allows the double lifting lugs 3 to maintain a suitable distance to match the spacing of the crane's double hooks, while ensuring the balance and stability of the connection between the upper part 1 and the lower part 2, and avoiding excessive local stress due to overly concentrated connection points.

[0024] Reference Figure 1 and Figure 2 As shown, each set of connecting components includes two connecting plates 5 symmetrically arranged on opposite sides of the lower part 2. The double lifting lugs 3 include two U-shaped lugs 31. One end of the U-shaped lug 31 is connected to one of the two opposite connecting plates 5, and the other end is connected to the other of the two opposite connecting plates 5. Here, the U-shaped lugs 31 have good strength and toughness, and can withstand large tensile forces. At the same time, the two ends of the U-shaped lugs 31 are connected to the two opposite connecting plates 5 respectively, ensuring that the U-shaped lugs 31 are firmly connected to the connecting components, so that the double lifting lugs 3 can reliably transmit the lifting load.

[0025] According to exemplary embodiments of this disclosure, referring to Figure 1 As shown, the connecting plate 5 has a first connecting hole 51, and the lower part 2 has a second connecting hole corresponding to the first connecting hole 51. The first shaft pin 4 is connected to both the second connecting hole and the two first connecting holes 51. Here, the shaft pin and hole connection method ensures the accuracy and reliability of the connection, effectively transmits force, and facilitates disassembly and assembly. When the connecting plate 5 or the lower part 2 is damaged, it can be easily replaced.

[0026] In this disclosure, the diameter of the first connecting hole 51 can be set to 40mm to 50mm. For example, the diameter of the first connecting hole 51 can be 40mm, 45mm or 50mm; the width of the connecting plate 5 can be set to 60mm to 70mm. For example, the width of the connecting plate 5 can be 60mm, 65mm or 70mm.

[0027] According to exemplary embodiments of this disclosure, referring to Figure 2As shown, the upper end of the connecting plate 5 has a positioning groove 52. The end of the U-shaped ear plate 31 is inserted into the corresponding positioning groove 52 and welded to it. The positioning groove 52 positions the end of the U-shaped ear plate 31, ensuring accurate placement during installation and preventing misalignment. Furthermore, by inserting the end of the U-shaped ear plate 31 into the positioning groove 52 and welding it in, the U-shaped ear plate 31 and the connecting plate 5 form a unified whole, increasing the connection strength and preventing loosening or separation under stress during hoisting, thus enhancing the safety of the lifting device.

[0028] According to exemplary embodiments of this disclosure, referring to Figure 1 and Figure 2 As shown, a reinforcing rib 6 is provided between the U-shaped lug 31 and the corresponding connecting plate 5. Specifically, reinforcing ribs 6 are provided between the opposite sides of each end of the U-shaped lug 31 and the connecting plate 5, enhancing the structural strength and rigidity of the connection between the U-shaped lug 31 and the connecting plate 5. During hoisting operations, the connection between the U-shaped lug 31 and the connecting plate 5 bears a large load, which is prone to stress concentration. The reinforcing rib 6 can disperse the stress and prevent the connection from deforming or breaking due to excessive force, further improving the service life and safety of the lifting device.

[0029] According to exemplary embodiments of this disclosure, referring to Figure 2 As shown, the lower part 2 includes a mounting base 21, and the upper part 1 is connected to the upper part of the mounting base 21. The lower part of the mounting base 21 has a triangular structure with the tip pointing downwards. The lower part of the mounting base 21 is connected to the single and double clamps via a second axle pin 7. In the above technical solution, the triangular structure has the characteristics of good stability and uniform force distribution. The mounting base 21 with a triangular structure can evenly transfer the lifting load to the connection point with the single and double clamps. The lower part of the mounting base 21 is connected to the single and double clamps via the second axle pin 7, which is convenient for disassembly and assembly and reliable for force transmission, allowing the lifting device to be flexibly used with different types of single and double clamps.

[0030] According to an exemplary embodiment of this disclosure, both the upper part 1 and the lower part 2 can be made of steel plate. Steel plate has high strength, toughness, and wear resistance, and can withstand various loads and impacts during hoisting, meeting the structural strength requirements of the hoisting device. At the same time, steel plate is easy to process and manufacture.

[0031] According to an exemplary embodiment of this disclosure, the spacing between the double lifting lugs 3 is the same as the spacing between the double hooks. That is, the spacing between the two U-shaped lug plates 31 of the double lifting lugs 3 is the same as the spacing between the two hooks of the double hooks. This arrangement ensures that the double lifting lugs 3 can be accurately and stably hung on the double hooks of the crane, avoiding lifting offset or uneven force due to mismatched spacing, ensuring a reasonable force transmission path during lifting, and further enhancing the reliability and stability of the connection between the lifting device and the crane.

[0032] Reference Figure 1 and Figure 2 As shown, when using this single / double clamp lifting device, the two U-shaped lugs 31 of the double lifting lugs 3 are hung on the double hooks of the crane. Since the spacing between the double lifting lugs 3 and the spacing between the double hooks are the same, and the stress point is located at the center of the double hooks, the balance and stability of the lifting are ensured, and the situation of hook detachment is avoided. The lower part 2 is connected to the single clamp or double clamp through the second axle pin 7. The appropriate clamp is selected according to the type of material to be lifted. When it is necessary to replace the clamp or maintain the lifting device, it is only necessary to remove the first axle pin 4 or the second axle pin 7 to carry out the operation.

[0033] As can be seen from the above, the upper part 1 and the lower part 2 of the single and double clamp lifting device are connected by the first shaft pin 4, and the lower part 2 is connected to the single and double clamp by the second shaft pin 7. When a certain part of the lifting device (such as the connecting plate 5 or the mounting base 21) is worn or damaged, the part can be replaced simply by removing the corresponding shaft pin, which reduces the maintenance difficulty and time cost.

[0034] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0035] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0036] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A lifting device with single and double clamps, characterized in that, It includes a detachable upper part (1) and a lower part (2). The upper part (1) is provided with double lifting lugs (3). The double lifting lugs (3) can be hung on the double hooks of the crane and the force point is located at the center of the double hooks. The lower part (2) is used to connect with single and double clamps.

2. The lifting device for single and double clamps according to claim 1, characterized in that, The upper part (1) and the lower part (2) are connected by a first axle pin (4).

3. The lifting device for single and double clamps according to claim 2, characterized in that, The upper part (1) includes two sets of connecting components, which are arranged at intervals on the upper part of the lower part (2), and the double lugs (3) are connected to the two sets of connecting components in a one-to-one correspondence.

4. The lifting device for single and double clamps according to claim 3, characterized in that, Each set of the connecting components includes two connecting plates (5) symmetrically disposed on opposite sides of the lower part (2). The double lugs (3) include two U-shaped lugs (31), one end of which is connected to one of the two opposite connecting plates (5), and the other end is connected to the other of the two opposite connecting plates (5).

5. The lifting device for single and double clamps according to claim 4, characterized in that, The connecting plate (5) has a first connecting hole (51), and the lower part (2) has a second connecting hole corresponding to the first connecting hole (51). The first shaft pin (4) is connected to the second connecting hole and the two first connecting holes (51).

6. The lifting device for single and double clamps according to claim 4, characterized in that, The upper end of the connecting plate (5) is provided with a positioning groove (52), and the end of the U-shaped ear plate (31) is inserted into the corresponding positioning groove (52) and welded to the corresponding positioning groove (52).

7. The lifting device for single and double clamps according to claim 6, characterized in that, A reinforcing rib (6) is provided between the U-shaped ear plate (31) and the corresponding connecting plate (5).

8. The single / double clamp lifting device according to any one of claims 1 to 7, characterized in that, The lower part (2) includes a mounting base (21), the upper part (1) is connected to the upper part of the mounting base (21), the lower part of the mounting base (21) is a triangular structure with the tip pointing downwards, and the lower part of the mounting base (21) is connected to the single and double clamps through the second shaft pin (7).

9. The lifting device for single and double clamps according to claim 8, characterized in that, Both the upper part (1) and the lower part (2) are made of steel plate.

10. The lifting device for single and double clamps according to claim 8, characterized in that, The spacing between the double lugs (3) is the same as the spacing between the double hooks.

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