A modular clamp specifically designed for stacking cranes

Abstract

This invention discloses a modular clamp specifically designed for stacking cranes, comprising a lower clamping plate, a hollow connecting sleeve inserted above the lower clamping plate, a spacer sleeve fitted onto the outer surface of the hollow connecting sleeve, an upper clamping plate positioned above the spacer sleeve and the hollow connecting sleeve, a locking nut threaded onto the upper surface of the hollow connecting sleeve near the upper clamping plate, edge sealing plates fixedly connected to the periphery of the lower and upper clamping plates, foam spaced between the lower and upper clamping plates, and a connecting step shaft inserted into the interior of the hollow connecting sleeve. Through the coordinated arrangement of the lower clamping plate, spacer sleeve, upper clamping plate, and foam, this modular clamp for stacking cranes achieves a lightweight and low-noise design. The coordinated arrangement of the connecting step shaft and the locking assembly facilitates easy locking of the connecting shaft.

Description

Technical Field

[0001] This invention relates to the field of stacking crane technology, specifically a modular clamp for stacking cranes. Background Technology

[0002] The function of a stacking crane is to transport, transfer, and stack items on the ground. It mainly consists of a crane, a hoist, and clamps. The crane moves horizontally on a track at the top of the workshop, the hoist moves horizontally below the crane, and the clamps move up and down under the action of the hoist. To improve the applicability of the clamps, combination clamps are used instead of dedicated clamps to facilitate the gripping of products of different sizes.

[0003] However, the existing modular clamps for stacking cranes have some drawbacks in use. On the one hand, they are too heavy and noisy, and on the other hand, they are not easy to lock the connecting shaft. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a modular clamp specifically designed for stacking cranes. It features advantages such as light weight, low noise, and easy locking of the connecting shaft, thus solving the problems of excessive weight, high noise, and difficulty in locking the connecting shaft.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned goals of lightweight, low noise, and easy locking of the connecting shaft, the present invention provides the following technical solution: a combined clamp for stacking cranes, comprising a lower clamping plate, a hollow connecting sleeve inserted above the lower clamping plate, a spacer sleeve fitted on the outer surface of the hollow connecting sleeve, an upper clamping plate positioned above the spacer sleeve and the hollow connecting sleeve, a locking nut threadedly connected to the upper surface of the hollow connecting sleeve near the upper clamping plate, edge sealing plates fixedly connected to the periphery of the lower and upper clamping plates, foam positioned between the lower and upper clamping plates, a connecting step shaft inserted inside the hollow connecting sleeve, a locking assembly positioned at the upper end of the connecting step shaft, the locking assembly comprising a hexagonal sleeve, a locking cone sleeve positioned at the bottom of the hexagonal sleeve, and a locking inner sleeve fitted above the locking cone sleeve.

[0008] Preferably, the lower clamping plate and the upper clamping plate have the same length and width, the lower clamping plate and the upper clamping plate are parallel to each other, and the lower clamping plate and the upper clamping plate are fixedly connected to the edge sealing plate by welding and the weld is sealed.

[0009] Preferably, the number of hollow connecting sleeves is evenly distributed in a rectangular array between the lower clamping plate and the upper clamping plate, and the lower end of the hollow connecting sleeve has a large outer diameter and is stuck below the lower clamping plate.

[0010] Preferably, the lower end of the hollow connecting sleeve is fixed to the lower surface of the lower clamping plate by welding, the upper surface of the locking nut is higher than the upper surface of the hollow connecting sleeve, and the periphery of the locking nut is fixedly connected to the upper surface of the upper clamping plate by welding.

[0011] Preferably, the upper clamping plate has a feeding through hole in the middle, and the foam fills all the cavities between the lower clamping plate and the upper clamping plate.

[0012] Preferably, the connecting step shaft includes a bottom connecting shaft, a bottom limiting step shaft, a plug-in shaft, and a top screw. The plug-in shaft is clearance-fitted with the hollow connecting sleeve, and the length of the plug-in shaft is greater than the length of the hollow connecting sleeve.

[0013] Preferably, the locking cone sleeve is clearance-fitted with the insertion shaft, and the upper surface of the locking cone sleeve is higher than the upper surface of the insertion shaft.

[0014] Preferably, the locking inner sleeve is clearance-fitted with the hexagonal sleeve, and the locking inner sleeve is threadedly connected to the connecting step shaft.

[0015] Preferably, the outer surface of the locking cone sleeve and the inner hole of the locking inner sleeve are both provided with cone surfaces and fit each other, and the periphery of the locking cone sleeve is uniformly provided with slots.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a modular clamp specifically for stacking cranes, which has the following advantages:

[0018] 1. This stacking crane features a special combination clamp, which, through the coordinated arrangement of a lower clamp, spacer sleeve, upper clamp, and foam, achieves a lightweight and low-noise performance. The spacer sleeve supports the lower and upper clamps, making the interior of the combination clamp hollow and thus reducing weight. The lower and upper clamps are fixed around their perimeters with sealing plates and filled with foam in the middle, ensuring sufficient rigidity. The foam also acts as a shock absorber, preventing excessive noise during use.

[0019] 2. This stacking crane with a special combination clamp, through the matching arrangement of the connecting step shaft and the locking assembly, enables the stacking crane to easily lock the connecting shaft. The locking cone sleeve is fitted onto the outer surface of the insertion shaft of the connecting step shaft, while the locking inner sleeve is threadedly connected to the top screw at the top of the connecting step shaft. The mating surfaces of the locking cone sleeve and the locking inner sleeve are tapered. When the locking assembly is rotated to connect with the connecting step shaft, the locking inner sleeve moves downward and squeezes the locking cone sleeve, causing the locking cone sleeve to lock the connecting step shaft, thereby achieving the effect of easily locking the connecting shaft. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of a combined clamp for stacking overhead cranes proposed in this invention.

[0021] Figure 2 This is a structural schematic diagram of a cross-sectional view of a modular clamp for stacking overhead cranes proposed in this invention;

[0022] Figure 3 This is a partially enlarged structural schematic diagram of a combined clamp for stacking overhead cranes proposed in this invention;

[0023] Figure 4 This is a partially exploded view of the structure of a modular clamp for stacking cranes proposed in this invention.

[0024] In the diagram: 1. Lower clamping plate; 2. Hollow connecting sleeve; 3. Spacer sleeve; 4. Upper clamping plate; 401. Feeding through hole; 5. Locking nut; 6. Sealing plate; 7. Foam; 8. Connecting step shaft; 801. Bottom connecting shaft; 802. Bottom limiting step shaft; 803. Insertion shaft; 804. Top screw; 9. Locking assembly; 901. Hexagonal sleeve; 902. Locking cone sleeve; 903. Locking inner sleeve. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-4A modular clamping fixture for stacking cranes includes a lower clamping plate 1, a hollow connecting sleeve 2 inserted above the lower clamping plate 1, a spacer sleeve 3 fitted onto the outer surface of the hollow connecting sleeve 2, and an upper clamping plate 4 positioned above the spacer sleeve 3 and the hollow connecting sleeve 2. The lower clamping plate 1 and the upper clamping plate 4 have the same length and width, and are parallel to each other. A number of hollow connecting sleeves 2 are evenly distributed in a rectangular array between the lower clamping plate 1 and the upper clamping plate 4. The lower end of the hollow connecting sleeve 2 has a larger outer diameter and is clamped below the lower clamping plate 1. A locking nut 5 is threaded onto the upper surface of the upper clamping plate 4. The lower end of the hollow connecting sleeve 2 is fixed to the lower surface of the lower clamping plate 1 by welding. The upper surface of the locking nut 5 is higher than the upper surface of the hollow connecting sleeve 2. The periphery of the locking nut 5 is fixedly connected to the upper surface of the upper clamping plate 4 by welding. An edge sealing plate 6 is fixedly connected to the periphery of the lower clamping plate 1 and the upper clamping plate 4. The lower clamping plate 1 and the upper clamping plate 4 are fixedly connected to the edge sealing plate 6 by welding, and the weld is sealed. Foam 7 is placed between the lower clamping plate 1 and the upper clamping plate 4. A feeding through hole 401 is provided in the middle. Foam 7 fills all the cavities between the lower clamping plate 1 and the upper clamping plate 4. A connecting step shaft 8 is inserted into the hollow connecting sleeve 2. The connecting step shaft 8 includes a bottom connecting shaft 801, a bottom limiting step shaft 802, an insertion shaft 803, and a top screw 804. The insertion shaft 803 is clearance-fitted with the hollow connecting sleeve 2. The length of the insertion shaft 803 is greater than the length of the hollow connecting sleeve 2. A locking assembly 9 is provided at the upper end of the connecting step shaft 8. The locking assembly 9 includes a hexagonal sleeve 901. A locking cone sleeve 902 is provided at the bottom of the side sleeve 901. A locking inner sleeve 903 is sleeved on the top of the locking cone sleeve 902. The locking cone sleeve 902 is clearance-fitted with the insertion shaft 803. The upper surface of the locking cone sleeve 902 is higher than the upper surface of the insertion shaft 803. The locking inner sleeve 903 is clearance-fitted with the hexagonal sleeve 901. The locking inner sleeve 903 is threadedly connected to the connecting stepped shaft 8. The outer surface of the locking cone sleeve 902 and the inner hole of the locking inner sleeve 903 are both provided with tapered surfaces and fit each other. The periphery of the locking cone sleeve 902 is uniformly provided with slots.

[0027] In use, two steel plates are stacked together and simultaneously cut and drilled to ensure that the length and width dimensions of the lower clamping plate 1 and the upper clamping plate 4 are the same as the opening positions. Then, all hollow connecting sleeves 2 are passed through the lower clamping plate 1 from bottom to top. Next, spacer sleeves 3 are fitted over all hollow connecting sleeves 2. Then, the upper clamping plate 4 is placed on the upper surface of the spacer sleeves 3 while the hollow connecting sleeves 2 pass through it. Next, locking nuts 5 are screwed into and tightened over all hollow connecting sleeves 2. Then, the upper surface of the upper clamping plate 4 is welded around the locking nuts 5. Next, the lower end of the hollow connecting sleeve 2 is flipped over and welded to the upper surface of the lower clamping plate 1. At this point, neither the hollow connecting sleeve 2 nor the locking nuts 5 can be rotated. Finally, the edge sealing plate 6 is fixed to the periphery of the lower clamping plate 1 and the upper clamping plate 4 by welding, ensuring the weld is sealed. This creates a relatively closed space between the lower clamping plate 1 and the upper clamping plate 4. Finally, the raw materials for making foam 7 are... The feeding through hole 401 is inserted between the lower clamping plate 1 and the upper clamping plate 4 and then sealed. Further heating causes the raw material to expand between the lower clamping plate 1 and the upper clamping plate 4 and fill the space between them. At this time, the combined clamp is lightweight and has low noise during use. When the combined clamp is needed to clamp items, multiple connecting step shafts 8 are first made, and then specific clamping components are fixedly connected to the lower part of the connecting step shafts 8. The clamping components are fixedly connected to the hollow connecting sleeve 2 through the connecting step shafts 8. When connecting, the connecting step shaft 8 is inserted into the hollow connecting sleeve 2 from bottom to top. Then, the locking assembly 9 is screwed into the upper part of the connecting step shaft 8. When the locking assembly 9 is screwed in, the locking inner sleeve 903 moves downward and squeezes the locking cone sleeve 902, causing the locking cone sleeve 902 to lock the connecting step shaft 8, thus facilitating the locking of the connecting shaft. Finally, the combined clamp is lifted by connecting the hollow connecting sleeve 2 to the steel wire rope of the crane.

[0028] In summary, this stacking crane with a special modular clamp, through the coordinated arrangement of the lower clamping plate 1, spacer sleeve 3, upper clamping plate 4, and foam 7, achieves a lightweight and low-noise effect. The spacer sleeve 3 supports the lower clamping plate 1 and upper clamping plate 4, creating a hollow interior and reducing weight. The lower clamping plate 1 and upper clamping plate 4 are fixed around their perimeters and filled with foam 7 in the middle, ensuring sufficient rigidity. The foam 7 also acts as a shock absorber, preventing excessive noise during use. The connection between the stepped shaft 8 and the locking assembly 9 further enhances the design. The combination design enables the stacking crane to easily lock the connecting shaft. The locking cone sleeve 902 is sleeved on the outer surface of the insertion shaft 803 of the connecting step shaft 8. At the same time, the locking inner sleeve 903 is threadedly connected to the top screw 804 at the top of the connecting step shaft 8. The mating surfaces of the locking cone sleeve 902 and the locking inner sleeve 903 are tapered. When the locking assembly 9 is rotated to connect with the connecting step shaft 8, the locking inner sleeve 903 moves downward and squeezes the locking cone sleeve 902, causing the locking cone sleeve 902 to lock the connecting step shaft 8, thereby facilitating the locking of the connecting shaft.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular clamping fixture for stacking cranes, comprising a lower clamping plate (1), characterized in that: A hollow connecting sleeve (2) is inserted above the lower clamping plate (1). A spacer sleeve (3) is fitted on the outer surface of the hollow connecting sleeve (2). An upper clamping plate (4) is provided above the spacer sleeve (3) and the hollow connecting sleeve (2). A locking nut (5) is threadedly connected to the upper surface of the hollow connecting sleeve (2) near the upper clamping plate (4). An edge sealing plate (6) is fixedly connected to the periphery of the lower clamping plate (1) and the upper clamping plate (4). Foam (7) is provided between the lower clamping plate (1) and the upper clamping plate (4). A connecting step shaft (8) is inserted inside the hollow connecting sleeve (2). A locking assembly (9) is provided at the upper end of the connecting step shaft (8). The locking assembly (9) includes a hexagonal sleeve (901). A locking cone sleeve (902) is provided at the bottom of the hexagonal sleeve (901). A locking inner sleeve (903) is fitted on the upper part of the locking cone sleeve (902). The number of hollow connecting sleeves (2) are evenly distributed in a rectangular array between the lower clamping plate (1) and the upper clamping plate (4). The outer diameter of the lower end of the hollow connecting sleeve (2) is large and is stuck below the lower clamping plate (1). The lower end of the hollow connecting sleeve (2) is fixed to the lower surface of the lower clamping plate (1) by welding. The upper surface of the locking nut (5) is higher than the upper surface of the hollow connecting sleeve (2). The periphery of the locking nut (5) is fixedly connected to the upper surface of the upper clamping plate (4) by welding. The upper clamping plate (4) has a feeding through hole (401) in the middle, and the foam (7) fills all the cavities between the lower clamping plate (1) and the upper clamping plate (4).

2. The special combined clamp for stacking cranes according to claim 1, characterized in that: The lower clamping plate (1) and the upper clamping plate (4) have the same length and width. The lower clamping plate (1) and the upper clamping plate (4) are parallel to each other. The lower clamping plate (1) and the upper clamping plate (4) are fixedly connected to the edge sealing plate (6) by welding and the weld is sealed.

3. The special combined clamp for stacking cranes according to claim 1, characterized in that: The connecting step shaft (8) includes a bottom connecting shaft (801), a bottom limiting step shaft (802), a plug shaft (803), and a top screw (804). The plug shaft (803) is clearance-fitted with the hollow connecting sleeve (2), and the length of the plug shaft (803) is greater than the length of the hollow connecting sleeve (2).

4. The special combined clamp for stacking cranes according to claim 3, characterized in that: The locking cone sleeve (902) is clearance-fitted with the insertion shaft (803), and the upper surface of the locking cone sleeve (902) is higher than the upper surface of the insertion shaft (803).

5. The special combined clamp for stacking cranes according to claim 1, characterized in that: The locking inner sleeve (903) is clearance-fitted with the hexagonal sleeve (901), and the locking inner sleeve (903) is threadedly connected to the connecting step shaft (8).

6. The special combined clamp for stacking cranes according to claim 1, characterized in that: The outer surface of the locking cone sleeve (902) and the inner hole of the locking inner sleeve (903) are both provided with cone surfaces and fit each other. The locking cone sleeve (902) is provided with slots evenly around its periphery.

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