Large press hoisting and transporting device

Abstract

The hoisting and transporting device for the large press can be connected with a stand column mechanism of the large press to hoist and transport the stand column mechanism and a lower mechanism and comprises a bottom plate and an upper plate, the bottom plate and the upper plate are connected through side plates on the four sides to form a frame, and through holes allowing pull rods of the stand column mechanism to penetrate through are formed in the four corners of the bottom plate and the four corners of the upper plate. And two pairs of symmetrically arranged lifting lugs are arranged on the side surfaces of the frame. According to the utility model, the hoisting difficulty is reduced, the disassembly and assembly time is saved, uncertain factors in the disassembly and assembly process are reduced, the equipment delivery efficiency is greatly improved, and the transportation cost is saved.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting technology, specifically relating to a hoisting and transporting device for a large press. Background Technology

[0002] The mechanical structure of a large press generally consists of three parts: the upper mechanism, the column mechanism, and the lower mechanism. Taking an 850-ton press (S-850EX) as an example, the weight of the assembled three parts is approximately 100 tons, with dimensions of 9200mm × 3000mm × 2650mm. Overall lifting is not feasible due to limitations in factory height and the lifting capacity of truck cranes. Therefore, the original method required disassembling, transporting, and reinstalling the machine tool at the customer's site after manufacturing and delivery. This process took more than a month and required 4-5 trucks for transportation.

[0003] The existing dismantling and hoisting technologies for large presses have the following drawbacks: the dismantling process is time-consuming and labor-intensive; the large number of dispersed parts makes it easy for small parts to be lost or missed during transportation and packaging; the lifting is difficult; loading occupies a lot of vehicles and increases costs; and reassembly is cumbersome and involves too many uncertainties. These drawbacks significantly limit the delivery efficiency of the presses. Summary of the Invention

[0004] To address the aforementioned problems in current technology, this utility model provides a large press lifting and transportation device that reduces lifting difficulty, saves disassembly and assembly time, reduces uncertainties during disassembly and assembly, significantly improves equipment delivery efficiency, and saves transportation costs.

[0005] The technical solution adopted in this utility model is:

[0006] A large press hoisting and transportation device, which can be connected to the column mechanism of a large press for hoisting and transporting the column mechanism and the lower mechanism, includes a base plate and an upper plate. The base plate and the upper plate are connected by side plates on four sides to form a frame. The four corners of the base plate and the upper plate are provided with through holes for the tie rods of the column mechanism to pass through. The sides of the frame are provided with two pairs of symmetrically arranged lifting lugs.

[0007] Furthermore, a reinforcing plate is provided on the outer side of each through hole, and the reinforcing plate is fixed to the outer surface of the bottom plate or the top plate.

[0008] Furthermore, the frame is provided with several reinforcing ribs, which are fixedly connected to the bottom plate, the top plate and the corresponding side plates respectively.

[0009] Furthermore, the lifting lugs are mounted to the side of the frame via connecting plates.

[0010] Furthermore, the frame has a slot at the position corresponding to the connecting plate, and the connecting plate is fixed at the slot.

[0011] Furthermore, the connecting plate is fixedly connected to the base plate and the corresponding side plates.

[0012] Furthermore, the lifting lug includes a fixing plate, which is fixed to the connecting plate by a number of screws.

[0013] Furthermore, the screws are arranged in multiple rows and columns to ensure the reliability of the connection.

[0014] Furthermore, the frame and the tie rod are fixedly connected by nuts.

[0015] Furthermore, the base plate, top plate, side plate, reinforcing plate, stiffening plate, connecting plate, and lifting lugs are all made of steel plate structure. The base plate and top plate are welded to the side plate, reinforcing plate, stiffening plate, and connecting plate, and the side plate is welded to the stiffening plate and connecting plate.

[0016] The beneficial effects of this utility model are: reduced lifting difficulty, reduced disassembly and assembly time, reduced uncertainties in the disassembly and assembly process, significantly improved equipment delivery efficiency, and reduced transportation costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the large press of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the split structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the installation structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of this utility model after installation for hoisting.

[0022] In the diagram: 1. Upper mechanism; 2. Column mechanism; 21. Tie rod; 3. Lower mechanism; 4. Base plate; 5. Top plate; 6. Side plate; 7. Through hole; 8. Lifting lug; 81. Fixing plate; 9. Reinforcing plate; 10. Rib plate; 11. Connecting plate; 12. Groove; 13. Screw; 14. Nut; 15. Lifting and transportation device. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all alternatives, improvements and equivalents that may be included within the scope of the claims.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Technical terms:

[0028] Large-scale presses, powder molding machines with a pressing capacity of 500 tons or more. This embodiment uses the S-850EX as an example; its main structure is as follows: Figure 1 As shown, it mainly consists of three parts: upper mechanism 1, column mechanism 2, and lower mechanism 3. The column mechanism 2 contains a pneumatic control box, an electrical box, and a feeding device, and has many complex circuits and air passages.

[0029] See Figure 2-5 This embodiment provides a large press hoisting and transportation device, which can be connected to the column mechanism 2 of the large press for hoisting and transporting the column mechanism 2 and the lower mechanism 3. It includes a base plate 4 and an upper plate 5. The base plate 4 and the upper plate 5 are connected by side plates 6 on all four sides to form a frame. The base plate 4 and the upper plate 5 are provided with through holes 7 at the four corners for the tie rods 21 of the column mechanism 2 to pass through. The side of the frame is provided with two pairs of symmetrically arranged lifting lugs 8.

[0030] In this embodiment, a reinforcing plate 9 is provided on the outer side of each through hole 7. The reinforcing plate 9 is fixed to the outer surface of the bottom plate 4 or the top plate 5. Each reinforcing plate 9 has a connecting hole.

[0031] In this embodiment, a plurality of stiffening plates 10 are provided within the frame, and the stiffening plates 10 are fixedly connected to the bottom plate 4, the top plate 5 and the corresponding side plates 6 respectively.

[0032] In this embodiment, the lifting lug 8 is installed on the side of the frame via a connecting plate 11. The frame has a slot 12 corresponding to the position of the connecting plate 11, and the connecting plate 11 is fixed at the slot 12. The connecting plate 11 is fixedly connected to the base plate 4 and the corresponding side plates 6. The lifting lug 8 includes a fixing plate 81, which is fixed to the connecting plate 11 by a plurality of screws 13. The screws 13 are arranged in multiple rows and columns to ensure reliable connection. In this embodiment, the screws 13 are arranged in two columns and four rows.

[0033] In this embodiment, the frame and the tie rod 21 are fixedly connected by nuts 14.

[0034] In this embodiment, the base plate 4, top plate 5, side plate 6, reinforcing plate 9, stiffening plate 10, connecting plate 11, and lifting lug 8 are all made of steel plate structure. The thickness of the steel plates must ensure the final rigidity and load-bearing capacity of the device. The base plate 4 and top plate 5 are welded to the side plate 6, reinforcing plate 9, stiffening plate 10, and connecting plate 11, respectively, and the side plate 6 is welded to the stiffening plate 10 and connecting plate 11. Each steel plate weld must be cut according to the drawing requirements to ensure no incomplete welds.

[0035] The hoisting and transporting device 15 of this utility model is used to replace the upper mechanism 1 of a large press during disassembly and assembly. The upper mechanism 1 alone weighs approximately 60 tons and is 2.2 meters high. The hoisting and transporting device 15 of this utility model is welded from 40mm thick steel plates, weighs approximately 8 tons, and is less than 1 meter high, greatly reducing weight and hoisting height. In use: 1. Remove the upper mechanism 1, leaving four columns and tie rods exposed. 2. Fit the hoisting and transporting device 15 into the four columns and lock it with positioning screws. 3. Lock the upper tie rod nuts. 4. Use a hydraulic pump to inject 70MPa oil pressure into the four tie rod nuts at the bottom of the columns to bear a pulling force of 400 tons per rod (to meet the requirements of installing the upper mechanism), install adjusting shims, and release the oil pressure. 5. Hoisting and turning can be carried out using the hoisting holes on the hoisting and transporting device 15, allowing the column mechanism 2 and the lower mechanism 3 to be lifted together. 6. For installation, simply reverse the process.

[0036] By simply replacing the upper mechanism with this invention during disassembly, the components can be integrated into a single unit. The hoisting and turning process is simpler than the original method, and the integrity of the assembly is ensured during installation. Simply remove this invention, replace it with the upper mechanism, and connect the wiring and power. This also guarantees the overall precision of the lower components. The use of this invention improves delivery time by at least 15 days and ensures absolute installation stability, increasing efficiency while allowing customers to begin production ahead of schedule.

Claims

1. A large press hoisting and transportation device, which can be connected to the column mechanism of a large press for hoisting and transporting the column mechanism and the lower mechanism, characterized in that: It includes a base plate and a top plate, which are connected by side plates on all four sides to form a frame. Each of the four corners of the base plate and the top plate has through holes for the tie rods of the column mechanism to pass through. The sides of the frame are provided with two pairs of symmetrically arranged lifting lugs.

2. The large press hoisting and transportation device according to claim 1, characterized in that: A reinforcing plate is provided on the outer side of each through hole, and the reinforcing plate is fixed to the outer surface of the bottom plate or the top plate.

3. The large press hoisting and transportation device according to claim 1, characterized in that: The frame is provided with stiffening plates on both sides of the through hole, and the stiffening plates are fixedly connected to the bottom plate, the top plate and the corresponding side plates respectively.

4. The large press hoisting and transportation device according to claim 1, characterized in that: The lifting lugs are mounted to the side of the frame via connecting plates.

5. The large press hoisting and transporting device according to claim 4, characterized in that: The frame has a slot at the position corresponding to the connecting plate, and the connecting plate is fixed at the slot.

6. The large press hoisting and transporting device according to claim 5, characterized in that: The connecting plate is fixedly connected to the base plate and the corresponding side plates.

7. The large press hoisting and transport device according to claim 4, characterized in that: The lifting lug includes a fixing plate, which is fixed to the connecting plate by a number of screws.

8. The large press hoisting and transporting device according to claim 7, characterized in that: The screws are arranged in multiple rows and columns to ensure the reliability of the connection.

9. The large press hoisting and transportation device according to claim 1, characterized in that: The frame and the tie rod are fixedly connected by nuts.

10. The large press hoisting and transport device according to claim 1, characterized in that: The base plate, top plate, side plates, reinforcing plates, stiffening plates, connecting plates, and lifting lugs are all made of steel plate structure. The base plate and top plate are welded to the side plates, reinforcing plates, stiffening plates, and connecting plates, and the side plates are welded to the stiffening plates and connecting plates.

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