A simple lifting device for half-combined large sand core integral core setting

Abstract

The utility model relates to a hoist technical field, concretely relates to a simple and easy hoist of half combination big sand core integral core setting, including sand core body and core setting hoist, the surface of sand core body is equipped with multiple sets of lifting hook hole and guide pin hole, and the core setting hoist includes hoist frame, core setting guide positioning pin, first support plate, second support plate, third support plate, rotary lifting hook, sand core positioning guide pin, first connecting block, suspender, hanging plate, second connecting block, mounting groove and lifting lug, and the rotary lifting hook is inserted in the inside of lifting hook hole, and the sand core positioning guide pin is inserted in the inside of guide pin hole, through the surface of two sets of sand core body is equipped with multiple sets of lifting hook hole and guide pin hole, in the core setting process, multiple sets of rotary lifting hooks are clamped in the inside of multiple sets of lifting hook holes respectively, can two sets of sand core body whole body be hoisted upwards, improve the stability of sand core body core setting, and the core setting hoist structure is simple, and the disassembly is flexible and convenient, effectively reduces production cost, and effectively improves the core setting accuracy.

Description

Technical Field

[0001] This utility model relates to the field of lifting tool technology, specifically to a simple lifting tool for whole core lowering of large sand cores that are assembled in half. Background Technology

[0002] Lifting tools refer to the devices used in lifting machinery to lift heavy objects. The most commonly used lifting tool for lifting packaged goods is the hook. Other lifting tools include lifting rings, lifting suction cups, clamps, and forks. Lifting suction cups, clamps, and forks can be used as dedicated lifting tools on cranes for a long time, or they can be used temporarily as replaceable auxiliary lifting tools attached to the hook. They are often used in multi-cargo warehouses and storage yards to improve operational efficiency. Lifting tools for grabbing bulk materials are generally grabs with openable and closable jaws. Electromagnetic chucks can also be used to pick up magnetic materials such as metal shavings. Lifting tools for lifting fluid materials commonly include containers and tanks. Molten steel or chemical solutions are generally discharged by tilting or removing the bottom plug, while fluid materials such as concrete are discharged by opening the bottom door of the tank.

[0003] During the process of lowering the main sand core of the gear chamber of a large-diameter engine, the sand core is large in volume, irregular in shape and divided into half. Traditional lifting tools cannot simultaneously and stably lower two sets of half-divided sand cores. Therefore, it is often necessary to manually lower the two sets of half-divided sand cores one by one. Manual lowering is slow, and both manual and traditional lifting tools are prone to damaging the sand core cavity and causing sand particles to fall, resulting in waste products.

[0004] Therefore, it is necessary to invent a simple lifting tool for whole core lowering of large sand cores in half-assembly to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a simple lifting tool for whole core lowering of large sand cores in a split-combination manner, so as to solve the problems of traditional lifting tools being inconvenient for material lowering, slow manual material lowering speed, and easy damage to the sand core cavity, as well as sand particles falling and generating waste products.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a simple lifting device for whole core lowering of a large sand core in a split-combination manner, comprising a sand core body and a core lowering lifting device. The surface of the sand core body is provided with multiple sets of hook holes and guide pin holes. The core lowering lifting device includes a lifting device frame, a core lowering guide positioning pin, a first support plate, a second support plate, a third support plate, a rotating hook, a sand core positioning guide pin, a first connecting block, a lifting rod, a lifting plate, a second connecting block, an installation groove, and a lifting lug. The rotating hook is inserted into the hook hole, and the sand core positioning guide pin is inserted into the guide pin hole.

[0007] By adopting the above technical solution, multiple sets of hook holes and guide pin holes are opened on the surface of the two sets of sand core bodies. During the core lowering process, multiple sets of rotating hooks are respectively locked inside the multiple sets of hook holes, so that the two sets of sand core bodies can be lifted upward as a whole, which improves the stability of the sand core bodies when lowering the core. Moreover, the core lowering lifting tool has a simple structure, accurate positioning, and flexible and convenient disassembly, which effectively reduces production costs.

[0008] Optionally, both ends of the lifting frame are fixedly connected with lower core guide positioning pins, the first support plate is fixedly installed at the middle position of the lower surface of the lifting frame, the second support plate is fixedly installed at the position to the left of the first support plate on the lower surface of the lifting frame, and the third support plate is fixedly installed at the position to the right of the first support plate on the lower surface of the lifting frame.

[0009] By adopting the above technical solution, the core guide positioning pin is used to position the core lifting tool and the sand core body during the core lowering process, thereby improving the core lowering accuracy.

[0010] Optionally, two sets of first connecting blocks are fixedly connected to the surfaces of the second and third support plates, and two sets of second connecting blocks are fixedly connected to the left and right ends of the hanging plate. The two ends of the hanging rod are respectively hinged to the first connecting blocks and the second connecting blocks.

[0011] By adopting the above technical solution, the boom is used to connect the lifting plate and the lifting frame.

[0012] Optionally, the mounting groove is formed on the surface of the hanging plate, and the lifting lug is fixedly installed inside the mounting groove.

[0013] By adopting the above technical solution, the lifting lug can slide inside the mounting groove, fixing the lifting lug in different positions and improving the overall balance of the lifting device.

[0014] Optionally, two sets of sand core positioning guide pins are fixedly connected to the front and rear sides of the lower surface of the first support plate, and rotating hooks are fixedly connected to the front and rear ends of the first support plate, the front ends of the second support plate and the third support plate.

[0015] By adopting the above technical solution, the sand core positioning guide pin and the guide pin hole are matched, so that the rotating hook and the hook hole can be precisely matched.

[0016] Optionally, the rotating hook includes a fixed sleeve, a rotating shaft, a pad, a handle, a limiting rod, and a limiting groove, wherein the fixed sleeve is fixedly connected to the surfaces of the first support plate, the second support plate, and the third support plate, respectively.

[0017] By adopting the above technical solution, the fixing sleeve is connected and fixed to the first support plate, the second support plate and the third support plate by screws.

[0018] Optionally, the rotating shaft is rotatably connected to the inside of the fixed sleeve, the pad is fixedly connected to the lower end of the rotating shaft, and the handle is fixedly connected to the upper end of the rotating shaft.

[0019] By adopting the above technical solution, the rotating shaft can rotate and slide up and down inside the fixed sleeve, the pad is used to support the lower end of the sand core body, and the handle is used to adjust the position of the rotating shaft.

[0020] Optionally, the limiting rod is fixedly connected to the side of the rotating shaft near the upper end, and the limiting groove is formed at the upper end of the fixed sleeve.

[0021] By adopting the above technical solution, the limiting rod and the limiting groove cooperate to limit the rotation shaft, thereby improving the stability of the rotation shaft during the lifting process.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0023] 1. This utility model opens multiple sets of hook holes and guide pin holes on the surface of two sets of sand core bodies. During the core lowering process, multiple sets of rotating hooks are respectively locked inside the multiple sets of hook holes, so that the two sets of sand core bodies can be lifted upward as a whole, which improves the stability of the sand core body lowering. Moreover, the core lowering lifting device has a simple structure, is flexible and convenient to disassemble, and effectively reduces production costs.

[0024] 2. This utility model uses the sand core positioning guide pin and the guide pin hole to make the rotating hook and the hook hole fit precisely. At the same time, with the lower core guide positioning pin, the sand core body can be accurately lowered, thereby effectively improving the installation and lowering accuracy. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the sand core body structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the lifting frame structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the first support plate structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the second and third support plates of this utility model;

[0030] Figure 6 This is a schematic diagram of the rotating hook structure of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Sand core body; 11. Hook hole; 12. Guide pin hole; 2. Lower core lifting device; 21. Lifting device frame; 22. Lower core guide positioning pin; 23. First support plate; 24. Second support plate; 25. Third support plate; 26. Rotating hook; 261. Fixing sleeve; 262. Rotating shaft; 263. Pad; 264. Handle; 265. Limiting rod; 266. Limiting groove; 27. Sand core positioning guide pin; 28. First connecting block; 29. ​​Lifting rod; 210. Lifting plate; 211. Second connecting block; 212. Mounting groove; 213. Lifting lug. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figures 1 to 3 The diagram shows a simple lifting device for whole core lowering of a large sand core in a split-combination manner. It includes a sand core body 1 and a core lowering device 2. The surface of the sand core body 1 is provided with multiple sets of hook holes 11 and guide pin holes 12. The core lowering device 2 includes a lifting frame 21, a core lowering guide positioning pin 22, a first support plate 23, a second support plate 24, a third support plate 25, a rotating hook 26, a sand core positioning guide pin 27, a first connecting block 28, a lifting rod 29, a lifting plate 210, a second connecting block 211, a mounting groove 212, and a lifting lug 213. The rotating hook 26 is inserted into the hook hole 11, and the sand core positioning guide pin 27 is inserted into the guide pin hole 12. Both ends of the lifting frame 21 are fixedly connected with the core lowering guide positioning pin 22.

[0035] Among them, the sand core positioning guide pin 27 cooperates with the guide pin hole 12 to position the rotating hook 26 and the hook hole 11, so that the rotating hook 26 and the hook hole 11 can be precisely matched. After the rotating hook 26 is locked inside the multiple sets of hook holes 11, the two sets of sand core bodies 1 are combined and fixed together. When the lower core lifting tool 2 is lifted upward, the two sets of sand core bodies 1 can be lifted upward as a whole and the core can be lowered. At the same time, with the cooperation of the two sets of lower core guide positioning pins 22, the two sets of sand core bodies 1 can be accurately placed in the lower sand mold. After the placement is completed, rotating the rotating hook 26 can separate the rotating hook 26 from the hook hole 11, improving the convenience of loading and unloading.

[0036] See Figures 3 to 5The first support plate 23 is fixedly installed at the middle position of the lower surface of the lifting frame 21. The second support plate 24 is fixedly installed at the left side of the lower surface of the lifting frame 21, and the third support plate 25 is fixedly installed at the right side of the lower surface of the lifting frame 21, and two sets of first connecting blocks 28 are fixedly connected to the surfaces of the second support plate 24 and the third support plate 25. Two sets of second connecting blocks 211 are fixedly connected to the left and right ends of the lifting plate 210. The two ends of the lifting rod 29 are respectively hinged to the first connecting blocks 28 and the second connecting blocks 211. The mounting groove 212 is opened on the surface of the lifting plate 210. The lifting lug 213 is fixedly installed inside the mounting groove 212. Two sets of sand core positioning guide pins 27 are fixedly connected to the front and rear sides of the lower surface of the first support plate 23. Rotary hooks 26 are fixedly connected to the front and rear ends of the first support plate 23, the front ends of the second support plate 24 and the third support plate 25.

[0037] Specifically, the two sets of rotating hooks 26 on the lower surface of the first support plate 23 connect to the two sets of hook holes 11 on the side of the two sets of sand core bodies 1 that are close to each other. At the same time, the connection of the two sets of sand core bodies 1 is locked and fixed to prevent shaking during the lifting process, thereby preventing sand particles from falling and reducing the generation of waste.

[0038] Meanwhile, the rotating hooks 26 at the front ends of the second support plate 24 and the third support plate 25 are respectively connected and fixed to the hook holes 11 on the opposite side of the two sets of sand core bodies 1. Each set of sand core bodies 1 has three sets of rotating hooks 26 fixed on its surface. The three-point fixing effectively improves the stability of the sand core body 1 during movement and improves the uniformity of the force on the sand core body 1, thus preventing damage to the sand core body 1.

[0039] See Figure 2 and Figure 6 In a preferred embodiment, the rotating hook 26 includes a fixed sleeve 261, a rotating shaft 262, a pad 263, a handle 264, a limiting rod 265, and a limiting groove 266. The fixed sleeve 261 is fixedly connected to the surfaces of the first support plate 23, the second support plate 24, and the third support plate 25, respectively. The rotating shaft 262 is rotatably connected to the inside of the fixed sleeve 261. The pad 263 is fixedly connected to the lower end of the rotating shaft 262. The handle 264 is fixedly connected to the upper end of the rotating shaft 262. The limiting rod 265 is fixedly connected to the side of the rotating shaft 262 near the upper end. The limiting groove 266 is formed at the upper end of the fixed sleeve 261.

[0040] In addition, during the engagement of the rotating hook 26 with the hook hole 11, firstly, multiple sets of handles 264 are rotated to adjust the pad 263 to the front-back direction. Simultaneously, the limiting rod 265 will engage in the limiting grooves 266 on both the front and rear sides, preventing the pad 263 from rotating. Next, the rotating hook 26 and the sand core positioning guide pins 27 are moved downwards. The multiple sets of sand core positioning guide pins 27 will first engage inside the guide pin holes 12, limiting the position of the rotating hook 26. As the rotating hook 26 continues to descend, the multiple sets of handles 264... The moving shaft 262 and the pad 263 are inserted into the interior of the multiple sets of hook holes 11 until the fixing sleeve 261 contacts the upper surface of the sand core body 1. At this time, the multiple sets of handles 264 are rotated again to adjust the pad 263 to the left and right direction. The pad 263 will then be stuck on the lower surface of the sand core body 1, and the limiting rod 265 will be stuck in the limiting grooves 266 on the left and right sides to improve the stability of the pad 263. As the lower core lifting device 2 is lifted upward, the two sets of sand core bodies 1 can be lifted at the same time. The structure is simple and the operation is convenient.

[0041] The working principle of this utility model is as follows: By opening multiple sets of hook holes 11 and guide pin holes 12 on the surface of two sets of sand core bodies 1, during the core lowering process, multiple sets of rotating hooks 26 are respectively locked inside the multiple sets of hook holes 11, so that the two sets of sand core bodies 1 can be lifted upward as a whole, improving the stability of the sand core body 1 during core lowering. Moreover, the core lowering lifting device 2 has a simple structure, is flexible and convenient to disassemble, and effectively reduces production costs. At the same time, through the cooperation of the sand core positioning guide pin 27 and the guide pin hole 12, the rotating hook 26 and the hook hole 11 can be precisely matched. With the cooperation of the core lowering guide positioning pin 22, the sand core body 1 can be accurately lowered, thereby effectively improving the installation and core lowering accuracy.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A simple lifting device for whole core lowering of a large sand core in a split-assembly configuration, comprising a sand core body (1) and a core lowering lifting device (2), characterized in that: The surface of the sand core body (1) is provided with multiple sets of hook holes (11) and guide pin holes (12). The lower core lifting tool (2) includes a lifting tool frame (21), a lower core guide positioning pin (22), a first support plate (23), a second support plate (24), a third support plate (25), a rotating hook (26), a sand core positioning guide pin (27), a first connecting block (28), a lifting rod (29), a lifting plate (210), a second connecting block (211), a mounting groove (212), and a lifting lug (213). The rotating hook (26) is inserted into the inside of the hook hole (11), and the sand core positioning guide pin (27) is inserted into the inside of the guide pin hole (12).

2. The simple lifting tool for whole core lowering of a large sand core in a split-and-assembled manner according to claim 1, characterized in that: Both ends of the lifting frame (21) are fixedly connected with lower core guide positioning pins (22). The first support plate (23) is fixedly installed in the middle of the lower surface of the lifting frame (21). The second support plate (24) is fixedly installed on the lower surface of the lifting frame (21) to the left of the first support plate (23). The third support plate (25) is fixedly installed on the lower surface of the lifting frame (21) to the right of the first support plate (23).

3. The simple lifting tool for whole core lowering of a large sand core in a split-combination manner according to claim 1, characterized in that: The surfaces of the second support plate (24) and the third support plate (25) are fixedly connected with two sets of first connecting blocks (28), and the left and right ends of the hanging plate (210) are fixedly connected with two sets of second connecting blocks (211). The two ends of the hanging rod (29) are respectively hinged to the first connecting block (28) and the second connecting block (211).

4. A simple lifting tool for whole core lowering of a large sand core in a split-combination manner according to claim 1, characterized in that: The mounting groove (212) is formed on the surface of the hanging plate (210), and the lifting lug (213) is fixedly installed inside the mounting groove (212).

5. A simple lifting tool for whole-body core lowering of a large sand core in a split-combination manner according to claim 1, characterized in that: Two sets of sand core positioning guide pins (27) are fixedly connected to the front and rear sides of the lower surface of the first support plate (23), and rotating hooks (26) are fixedly connected to the front and rear ends of the first support plate (23), the second support plate (24), and the front end of the third support plate (25).

6. A simple lifting tool for whole core lowering of a large sand core in a split-and-assembled manner according to claim 1, characterized in that: The rotating hook (26) includes a fixed sleeve (261), a rotating shaft (262), a pad (263), a handle (264), a limiting rod (265), and a limiting groove (266). The fixed sleeve (261) is fixedly connected to the surfaces of the first support plate (23), the second support plate (24), and the third support plate (25), respectively.

7. A simple lifting tool for whole core lowering of a large sand core in a split-combination manner according to claim 6, characterized in that: The rotating shaft (262) is rotatably connected to the inside of the fixed sleeve (261), the pad (263) is fixedly connected to the lower end of the rotating shaft (262), and the handle (264) is fixedly connected to the upper end of the rotating shaft (262).

8. A simple lifting tool for whole core lowering of a large sand core in a split-combination manner according to claim 7, characterized in that: The limiting rod (265) is fixedly connected to the side of the rotating shaft (262) near the upper end, and the limiting groove (266) is opened at the upper end of the fixed sleeve (261).

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