A large-tonnage oil press stand and tension bolt combined assembly and lifting mechanism

Abstract

The utility model discloses a large tonnage oil press stand column and tension bolt combination assembly and hoist mechanism, including backing plate, hoop, fixed support, the upper portion both sides of stand column are provided with stand column lifting lug, and the top of two tension bolts is provided with lifting ring, the backing plate is set up on two tension bolts and is located above stand column, the hoop is installed on the upper portion of tension bolt and is located above backing plate, is used for the upper end surface of stand column and the lower end surface of backing plate when stand column hoist, the bottom surface of hoop and the upper end surface of backing plate are attached, fix the relative position of tension bolt and stand column, fixed support is installed between the lower portion of two tension bolts and is located below stand column and is close to stand column, makes two tension bolts not in the left and right swing in stand column when stand column hoist. The utility model discloses under the condition of not removing factory roof and not using automobile hoist again, utilizes the existing travelling crane, makes the combined piece of stand column and tension bolt can be hoisted from the ground level state to vertical state and completes the installation, and the mechanism is simple, and the operability is strong, and the cost is low, and the efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of installation technology of 10,000-ton hydraulic press, and particularly relates to a combination assembly and lifting mechanism for a large-tonnage hydraulic press column and tension bolts. Background Technology

[0002] In a 10,000-ton hydraulic press, the column and tension bolt are the main load-bearing components. The column is over 10m long and the tension bolt is over 17m long.

[0003] Previously, when installing a 10,000-ton hydraulic press, a truck crane was used to first vertically lift the tension bolts and insert them into the corresponding holes in the press base. Then, the truck crane was used to vertically lift the column, ensuring the lower end of the column exceeded the upper end of the tension bolts. Finally, the tension bolts were slowly inserted into the column's hole, and the column was lowered onto the press base. However, this method required multiple lifts using a large-tonnage truck crane to complete the installation of the column and tension bolts, resulting in high installation costs. Furthermore, to accommodate the truck crane's lifting height requirements, the factory building where the hydraulic press was installed could not be roofed. This meant that during rainy weather, leaks in the roof could cause the hydraulic press components to rust, especially in winter when the temperature inside the factory was low, greatly hindering the installation and severely impacting efficiency. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a combination assembly and lifting mechanism for a large-tonnage hydraulic press column and tension bolts. This mechanism utilizes the existing overhead crane in the factory building to lift the combination of the column and tension bolts from a horizontal position to a vertical position for installation without dismantling the factory roof or using a separate truck crane. The mechanism is simple, easy to operate, low in cost, and highly efficient.

[0005] This utility model is implemented as follows: a combination assembly and lifting mechanism for a large-tonnage hydraulic press column and tension bolts, wherein two tension bolts are inserted into the inner hole of the column; the mechanism includes a pad, a clamp, and a fixed support; lifting lugs are provided on both sides of the upper part of the column, and lifting rings are provided at the top of the two tension bolts; the pad is sleeved on the two tension bolts and located above the column, serving as auxiliary support between the column and the clamp; the clamp is installed on the upper part of the tension bolts and located above the pad, so that when the column is lifted, the upper end face of the column is in contact with the lower end face of the pad, and the bottom surface of the clamp is in contact with the upper end face of the pad, fixing the relative position of the tension bolts and the column; the fixed support is installed between the lower parts of the two tension bolts and located below and close to the column, serving to fix the two tension bolts so that the two tension bolts do not sway left and right inside the column when the column is lifted.

[0006] In the above technical solution, preferably, the pad is a component of the 10,000-ton hydraulic press itself.

[0007] In the above technical solution, preferably, the clamp consists of two half clamps, a connecting bolt, and a connecting nut, and the two half clamps are connected and fixed by the connecting bolt and the connecting nut.

[0008] In the above technical solution, a further preferred embodiment is that the inner diameter of the semi-clamp is 2mm larger than the outer diameter of the tension bolt, and a rubber pad is provided between the semi-clamp and the tension bolt.

[0009] In the above technical solution, a further preferred embodiment is that the semi-circular arc of the semi-clamp is formed by a 30mm thick steel plate.

[0010] In the above technical solution, preferably, the fixed support consists of two semi-circular supports, a screw, and two adjusting nuts. A support cylinder is provided at the center of the outer side of each semi-circular support. The screw passes between the two support cylinders, and the two adjusting nuts are screwed onto the screw. Rotating the two adjusting nuts increases or decreases the distance between the two semi-circular supports.

[0011] In the above technical solution, a further preferred embodiment is that the inner diameter of the semicircular support is 2mm larger than the outer diameter of the tension bolt, and a rubber pad is provided between the semicircular support and the tension bolt.

[0012] During operation, first, the column is placed flat on the ground. Two tension bolts are then inserted into the column's inner hole using an existing overhead crane in the factory, with approximately 2 meters of the tension bolts protruding from the top of the column. Next, the hydraulic press's own product pad is fitted onto the two tension bolts. A clamp is then installed on top of the two tension bolts, with two half-clamps secured to them using connecting bolts and nuts. A rubber pad is placed between the inner arc of the clamp and the tension bolt. After the column is lifted, the bottom surface of the clamp is flush with the top surface of the pad. Finally, a fixing support is installed below the two tension bolts, near the column. The fixing support is installed between the two tension bolts and secured by screwing it in. Adjust the nuts on the top to secure the two tension bolts, ensuring they do not wobble inside the column during lifting. Finally, using the existing overhead crane in the factory, with the main and auxiliary hooks working together, slowly lift the secured column through the column lifting lugs to a vertical position. Move the crane to slowly lower the lower end of the tension bolts into the corresponding holes on the hydraulic press base. After the column has fallen to a certain height, remove the fixing support between the two tension bolts. Then, lower the crane again until the column is completely in the positioning keyway on the hydraulic press base. Change the lifting point to the tension bolts, and with the assistance of the overhead crane, loosen the clamps on the two tension bolts one by one, then install the tension bolts in place sequentially.

[0013] The advantages and positive effects of this utility model are: Based on the structural characteristics of a 10,000-ton hydraulic press, this utility model designs and manufactures a simple mechanism and uses the hydraulic press's own structural components as an auxiliary to combine the column and two tension bolts into one unit. Without dismantling the factory roof or using a separate truck crane, the assembly of the column and tension bolts can be lifted from a horizontal position to a vertical position and installed using the existing overhead crane in the factory.

[0014] This utility model has a simple structure, is easy to operate, has low cost, and is highly efficient, specifically in the following aspects: 1. This utility model can reduce the number of times the column and tension bolt of a 10,000-ton hydraulic press are lifted separately. By using the combination mechanism of tension bolt and column, the tension bolt is fixed inside the column. The assembly of one column and two tension bolts can be completed in one lift, which has high installation efficiency.

[0015] 2. This utility model can improve the transportation safety of the column and tension bolt assembly. During transportation, the mechanism can be used to fix the column and tension bolt assembly together, preventing the tension bolt from moving inside the column and improving transportation efficiency.

[0016] 3. This utility model has low installation cost. It can be lifted and installed using the existing overhead crane in the factory, without the need to rent a separate truck crane, which saves on lifting costs and ensures high safety.

[0017] 4. The roof of the hydraulic press factory building constructed with this utility model can be sealed normally without being affected by the lifting height of the truck crane, resulting in high construction efficiency. Attached Figure Description

[0018] The technical solutions of the embodiments of this application will be further described in detail below with reference to the accompanying drawings. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of this application. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the assembly and lifting mechanism of the large-tonnage hydraulic press column and tension bolts of this utility model; Figure 2 This is a top view of the assembly and lifting mechanism of the large-tonnage hydraulic press column and tension bolts of this utility model; Figure 3 This is a schematic diagram of the clamp of this utility model; Figure 4 This is a schematic diagram of the fixed support of this utility model; Figure 5 This is a schematic diagram of the semicircular support of this utility model.

[0020] In the diagram: 1. Column; 2. Tensioning bolt; 3. Pad; 4. Clamp; 5. Fixed support; 6. Rubber pad one; 7. Rubber pad two; 8. Lifting ring; 9. Column lifting lug; 401. Half clamp; 402. Connecting bolt; 403. Connecting nut; 501. Semicircular support; 502. Support cylinder; 503. Adjusting nut; 504. Screw. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "one," "two," "three," "four," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "joining," "installation," and "assembly" 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 based on the specific circumstances.

[0024] Please see Figures 1-5This utility model provides a combined assembly and lifting mechanism for a large-tonnage hydraulic press column and tension bolts. Two tension bolts 2 are inserted into the inner hole of the column 1. The mechanism includes a pad 3, a clamp 4, and a fixed support 5. Column lifting lugs 9 are provided on both sides of the upper part of the column 1, and lifting rings 8 are provided at the top of the two tension bolts 2. The pad 3 is fitted onto the two tension bolts 2 and located above the column 1, serving as auxiliary support between the column 1 and the clamp 4. The clamp 4 is installed on the upper part of the tension bolt 2 and on the pad 3. It is used to fix the relative position of the tension bolt 2 and the column 1 when the column 1 is lifted, so that the upper end face of the column 1 is in contact with the lower end face of the pad 3 and the bottom surface of the clamp 4 is in contact with the upper end face of the pad 3. The fixed support 5 is installed between the lower parts of the two tension bolts 2 and is located below and close to the column 1. It is used to fix the two tension bolts 2 so that the two tension bolts 2 do not sway left and right inside the column 1 when the column 1 is lifted.

[0025] As a preferred embodiment, the pad 3 is a component of the 10,000-ton hydraulic press itself. Using this component to assist in installation can save tooling materials and manufacturing time, thereby reducing the installation and manufacturing cost of the 10,000-ton hydraulic press.

[0026] In a preferred embodiment, the clamp 4 is a temporarily fabricated tooling fixture, consisting of two half-clamps 401, connecting bolts 402, and connecting nuts 403. Each half-clamp 401 has connecting plates at both ends. The two half-clamps 401 are connected and fixed by connecting bolts 402 and connecting nuts 403 passing through the connecting plates, making installation and removal very convenient. Specifically, after the two half-clamps 401 are installed onto the tension bolts 2 and tightened, a 5mm gap is left at the connecting plates at both ends of the half-clamps 401 to ensure that the connecting bolts 402 can be pre-tightened.

[0027] In a preferred embodiment, the inner diameter of the semi-clamp 401 is 2mm larger than the outer diameter of the tension bolt 2, and a rubber pad 7 is provided between the semi-clamp 401 and the tension bolt 2 to facilitate the installation of the rubber pad 7.

[0028] As a preferred embodiment, the semi-circular arc of the semi-clamp 401 is formed by the curvature of a 30mm thick steel plate, and the bottom surface of the semi-clamp 401 is entirely attached to the upper surface of the pad 3, resulting in a large force-bearing area and stable lifting.

[0029] In a preferred embodiment, the fixed support 5 consists of two semi-circular supports 501, a screw 504, and two adjusting nuts 503. A support cylinder 502 is welded to the center of the outer side of each semi-circular support 501. The screw 504 passes between the two support cylinders 502, and the two adjusting nuts 503 are screwed onto the screw 504. By rotating the two adjusting nuts 503, the distance between the two semi-circular supports 501 can be increased or decreased. This method has a good fixing effect and is convenient for installation and disassembly.

[0030] In a preferred embodiment, the inner diameter of the semicircular support 501 is 2mm larger than the outer diameter of the tension bolt 2, and a rubber pad 6 is provided between the semicircular support 501 and the tension bolt 2 to facilitate the installation of the rubber pad 6.

[0031] The specific implementation process of this utility model is as follows: The assembly and lifting mechanism for the large-tonnage hydraulic press column and tension bolts in this embodiment is used to assemble and lift a column 1 with a length of not less than 10m and a tension bolt 2 with a length of not less than 17m.

[0032] First, elevate column 1 and place it flat on the ground. Then, using an existing overhead crane in the factory, sequentially lift and insert the two tension bolts 2 into the inner hole of column 1 from the bottom, with the upper parts of both tension bolts 2 protruding approximately 2 meters from the upper surface of column 1. Next, fit the hydraulic press's own product pad 3 onto the tension bolts 2 and attach it to the upper surface of column 1. Install clamps 4 on the upper parts of the two tension bolts 2 respectively. The clamps 4 are then secured to the tension bolts 2 using connecting bolts 402 and connecting nuts 403. Rubber pad 2 7 is placed between the tension bolt 2 and the column 1. After the column 1 is lifted, the bottom surface of the clamp 4 is in contact with the upper surface of the pad 3. Then, a fixed support 5 is installed at the lower part of the two tension bolts 2 near the column 1. Rubber pad 6 is placed between the two semi-circular supports 501 and the tension bolt 2. By adjusting the adjusting nut 503 on the fixed support 5, the two semi-circular supports 501 are fixed between the two tension bolts 2, so that the two tension bolts 2 do not swing left and right inside the column 1 when the column 1 is lifted.

[0033] After the auxiliary equipment is installed, the existing overhead crane in the factory is used to slowly lift the fixed column 1 to a vertical position through the column lifting lug 9 with the cooperation of the main and auxiliary hooks. The overhead crane is moved so that the lower end of the tension bolt 2 slowly falls into the corresponding hole in the hydraulic press base. After the column 1 falls to a certain height, the fixing support 5 between the two tension bolts 2 is removed. The overhead crane is lowered again so that the column 1 falls completely into the positioning keyway on the hydraulic press base and is installed in place. The lifting ring 8 on the tension bolt 2 is replaced with the lifting point. With the help of the overhead crane, the clamps 4 on the two tension bolts 2 are loosened one by one and the tension bolts 2 are installed in place one by one.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A combination assembly and lifting mechanism for a large-tonnage hydraulic press column and tension bolts, wherein two tension bolts are inserted into the inner hole of the column; characterized in that: The mechanism includes a pad, a clamp, and a fixed support. Lifting lugs are provided on both sides of the upper part of the column, and lifting rings are provided at the top of the two tension bolts. The pad is fitted onto the two tension bolts and located above the column, providing auxiliary support between the column and the clamp. The clamp is installed on the upper part of the tension bolts and above the pad, so that when the column is lifted, the upper end face of the column is in contact with the lower end face of the pad, and the bottom surface of the clamp is in contact with the upper end face of the pad, fixing the relative position of the tension bolts and the column. The fixed support is installed between the lower parts of the two tension bolts, below and close to the column, to fix the two tension bolts so that they do not sway left and right within the column when the column is lifted.

2. The assembly and lifting mechanism for the large-tonnage hydraulic press column and tension bolts according to claim 1, characterized in that: The pad is a component of the 10,000-ton hydraulic press itself.

3. The assembly and lifting mechanism for the large-tonnage hydraulic press column and tension bolts according to claim 1, characterized in that: The clamp consists of two half clamps, connecting bolts, and connecting nuts. The two half clamps are connected and fixed by connecting bolts and connecting nuts.

4. The assembly and lifting mechanism for the large-tonnage hydraulic press column and tension bolts according to claim 3, characterized in that: The inner diameter of the semi-clamp is 2mm larger than the outer diameter of the tension bolt, and a rubber pad is placed between the semi-clamp and the tension bolt.

5. The assembly and lifting mechanism for the large-tonnage hydraulic press column and tension bolts according to claim 3, characterized in that: The semi-circular arc of the semi-clamp is formed by the curvature of a 30mm thick steel plate.

6. The assembly and lifting mechanism for the large-tonnage hydraulic press column and tension bolts according to claim 1, characterized in that: The fixed support consists of two semicircular supports, a screw, and two adjusting nuts. A support cylinder is set at the center of the outer side of each semicircular support. The screw passes between the two support cylinders, and the two adjusting nuts are screwed onto the screw. Rotating the two adjusting nuts increases or decreases the distance between the two semicircular supports.

7. The assembly and lifting mechanism for the large-tonnage hydraulic press column and tension bolts according to claim 6, characterized in that: The inner diameter of the semicircular support is 2mm larger than the outer diameter of the tension bolt, and a rubber pad is placed between the semicircular support and the tension bolt.

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