Cylinder longitudinal seam group tooling

Abstract

The utility model relates to the technical field of barrel body assembly welding processing of mine equipment, and specifically discloses a barrel body longitudinal joint assembly fixture, which comprises a first mounting plate and a second mounting plate in L shape, the side surface of the vertical section of the first mounting plate and the side surface of the horizontal section of the first mounting plate are both rotationally installed with first nuts, the side surface of the second mounting plate is rotationally installed with second nuts and third nuts, the second nuts correspond to the positions of the first nuts of the horizontal section of the first mounting plate, and the third nuts correspond to the positions of the first nuts of the vertical section of the first mounting plate. In the utility model, the fixture has the advantages of simple manufacturing, low cost, lightness, convenience and strong versatility, and can not only meet the longitudinal joint assembly production requirements of barrel body plates with various thicknesses, but also improve production efficiency and reduce production cost, thereby creating greater economic benefits for enterprises.

Description

Technical Field

[0001] This utility model relates to the field of cylinder assembly and welding technology for mining equipment, and particularly to tooling for assembling longitudinal seams of cylinders. Background Technology

[0002] A rotary kiln is a thermal processing device used to heat bulk or slurry materials. It is a heavy-duty, ultra-long, and statically indeterminate mechanical system widely used in cement, mining, metallurgy, building materials, and chemical industries. Rotary kilns for different applications vary in load, size, and support methods. Rotary kilns generally operate under high temperature and heavy load conditions for extended periods, resulting in complex stresses on various components. The kiln body is constructed from steel plates of varying thicknesses, with the joints thinned before welding.

[0003] The technical problem to be solved:

[0004] When some processing plants were contracted to supply equipment for a steel plant's lime kiln production line and sintering production line, the following requirements were specified: For the three pieces of equipment—the lime rotary kiln and the sintering mixer—with cylinder dimensions of φ4x60m, φ3.8x18m, and φ4.4x18m respectively, made of Q255-A steel plates, the number of longitudinal welds on each cylinder segment during circumferential splicing should not exceed two; the shortest splicing arc length should not be less than 1 / 4 of the circumference; the height of unspecified welds should be equal to the thickness of the thinner component being welded; and the weld misalignment b1 should not exceed 1.5mm.

[0005] Deviation of both ends of segment: The deviation of small segment f in the factory shall not exceed 2mm, and the deviation of large segment f in the factory shall not exceed 1mm.

[0006] The cylinder body is large in size and requires high precision, making assembly difficult. When riveting, tools such as hammers or weights are used to adjust the product size, which is difficult to operate and time-consuming. Therefore, in order to solve these problems, a cylinder longitudinal seam assembly fixture is proposed. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a tooling for assembling longitudinal seams in cylindrical bodies.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] The longitudinal seam assembly tooling for the cylinder includes an L-shaped first mounting plate and a second mounting plate. A first nut is rotatably mounted on the side of the vertical section and the side of the horizontal section of the first mounting plate. A second nut and a third nut are rotatably mounted on the side of the second mounting plate. The second nut corresponds to the position of the first nut on the horizontal section of the first mounting plate, and the third nut corresponds to the position of the first nut on the vertical section of the first mounting plate. The two first nuts are threaded to the second nut and the third nut respectively by two left-hand and right-hand bolts. Bolts are threaded to the bottom ends of both the first mounting plate and the second mounting plate.

[0010] Preferably, one left-handed bolt is threaded to the first nut and the third nut on the vertical side of the first mounting plate, respectively, and the other left-handed bolt is threaded to the first nut and the second nut on the horizontal side of the first mounting plate, respectively.

[0011] Preferably, the second nut is located above the third nut.

[0012] Preferably, a second clamp is installed at the bottom of the first mounting plate, and a first clamp is installed at the bottom of the second mounting plate. Both the first clamp and the second clamp are threaded with bolts at their bottoms.

[0013] Preferably, both the first mounting plate and the second mounting plate are rotatably connected to the first nut, the second nut, and the third nut respectively via pins.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] With its advantages of simple manufacturing, low cost, lightweight design, ease of use, and strong versatility, this tooling can not only meet the production needs of longitudinal seam assembly for cylindrical plates of various thicknesses, but also improve production efficiency, reduce production costs, and create greater economic benefits for enterprises. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the tooling for the longitudinal seam assembly of the cylinder proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of each component of the cylindrical longitudinal seam assembly tooling proposed in this utility model.

[0018] In the diagram: 1. First mounting plate; 2. First nut; 4. Left and right turn bolts; 5. Second nut; 6. Third nut; 7. Second mounting plate; 8. First clamp; 9. Second clamp; 10. Bolt; 11. Pin. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-2 The longitudinal seam assembly tooling for the cylinder includes an L-shaped first mounting plate 1 and a second mounting plate 7. A first nut 2 is rotatably mounted on the side of the vertical section and the side of the horizontal section of the first mounting plate 1. A second nut 5 and a third nut 6 are rotatably mounted on the side of the second mounting plate 7. The second nut 5 corresponds to the position of the first nut 2 on the horizontal section of the first mounting plate 1, and the third nut 6 corresponds to the position of the first nut 2 on the vertical section of the first mounting plate 1. The two first nuts 2 are threadedly connected to the second nut 5 and the third nut 6 by two left-hand and right-hand bolts 4, respectively. Bolts 10 are threadedly connected to the bottom ends of both the first mounting plate 1 and the second mounting plate 7.

[0021] As a technical optimization of this utility model, one left-handed bolt 4 is threaded to the first nut 2 and the third nut 6 on the vertical side of the first mounting plate 1 at both ends, and the other left-handed bolt 4 is threaded to the first nut 2 and the second nut 5 on the horizontal side of the first mounting plate 1 at both ends.

[0022] As a technical optimization of this utility model, the second nut 5 is located above the third nut 6.

[0023] As a technical optimization of this utility model, a second plate clamp 9 is installed at the bottom of the first mounting plate 1, and a first plate clamp 8 is installed at the bottom of the second mounting plate 7. Bolts 10 are threadedly connected to the bottom of both the first plate clamp 8 and the second plate clamp 9.

[0024] As a technical optimization of this utility model, the first mounting plate 1 and the second mounting plate 7 are rotatably connected to the first nut 2, the second nut 5 and the third nut 6 respectively through the pin 11.

[0025] When using this utility model, firstly, the rolled cylindrical plate is placed on the work platform, the gaps of the cylindrical plate assembly are initially adjusted, and clamps are used to fix the longitudinal seams of the cylindrical plate.

[0026] Rotate the bolts 10, which are threaded at the bottom of the first plate clamp 8 and the second plate clamp 9, counterclockwise until the gaps between the two bolts 10 and the first plate clamp 8 and the second plate clamp 9 can accommodate the thickness of the cylinder plate. This makes the cylinder plates on both sides of the longitudinal seam of the cylinder plate located between the first plate clamp 8 and one of the bolts 10, and between the second plate clamp 9 and the other bolt 10, respectively. Use the first plate clamp 8 and one of the bolts 10 to clamp the cylinder plate on one side of the longitudinal seam of the cylinder plate, and use the second plate clamp 9 and the other bolt 10 to clamp the cylinder plate on the other side of the longitudinal seam of the cylinder plate. Then tighten the two bolts 10 clockwise. This allows the first plate clamp 8 and one bolt 10 to clamp one side of the longitudinal seam of the cylinder plate, and the second plate clamp 9 and the other bolt 10 to clamp the other side of the longitudinal seam of the cylinder plate.

[0027] At this time, the two ends of one of the left-hand and right-hand bolts 4 are respectively threaded to the first nut 2 and the third nut 6 of the vertical section of the first mounting plate 1. Rotating the left-hand and right-hand bolts 4 will make the first mounting plate 1 and the second mounting plate 7 move closer to each other, thereby adjusting the distance between the cylinder plates on both sides of the longitudinal seam of the cylinder plate.

[0028] After adjusting the longitudinal seam gap of the cylinder plate to an appropriate amount, connect the two ends of another left-hand and right-hand bolt 4 to the first nut 2 and the second nut 5 of the horizontal section of the first mounting plate 1 respectively. Rotating the left-hand and right-hand bolt 4 can adjust the misalignment of the cylinder plates on both sides of the longitudinal seam. Adjust the two left-hand and right-hand bolts 4 according to the actual situation to adjust the longitudinal seam of the cylinder plate to meet the dimensional tolerance range required by the drawing. Spot weld the longitudinal seam of the cylinder plate to fix it. Rotate the two bolts 10 counterclockwise to remove the assembly tooling and weld the longitudinal seam of the cylinder.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tooling assembly for longitudinal seams of a cylinder, comprising an L-shaped first mounting plate (1) and a second mounting plate (7), characterized in that, The first mounting plate (1) has a first nut (2) rotatably mounted on the side of the vertical section and the side of the horizontal section. The second mounting plate (7) has a second nut (5) and a third nut (6) rotatably mounted on its side. The second nut (5) corresponds to the position of the first nut (2) of the horizontal section of the first mounting plate (1), and the third nut (6) corresponds to the position of the first nut (2) of the vertical section of the first mounting plate (1). The two first nuts (2) are threadedly connected to the second nut (5) and the third nut (6) respectively by two left and right twisting bolts (4). The bottom ends of the first mounting plate (1) and the second mounting plate (7) are both threadedly connected with bolts (10).

2. The tooling for assembling the longitudinal seam of the cylinder according to claim 1, characterized in that, One left-handed bolt (4) is threaded to the first nut (2) and the third nut (6) on the vertical side of the first mounting plate (1) at both ends, and the other left-handed bolt (4) is threaded to the first nut (2) and the second nut (5) on the horizontal side of the first mounting plate (1) at both ends.

3. The tooling for assembling the longitudinal seam of the cylinder according to claim 1, characterized in that, The second nut (5) is located above the third nut (6).

4. The tooling for assembling the longitudinal seam of the cylinder according to claim 1, characterized in that, The first mounting plate (1) is fitted with a second plate clamp (9) at its bottom end, and the second mounting plate (7) is fitted with a first plate clamp (8) at its bottom end. The first plate clamp (8) and the second plate clamp (9) are both threaded with bolts (10) at their bottom ends.

5. The tooling for assembling the longitudinal seam of the cylinder according to claim 1, characterized in that, The first mounting plate (1) and the second mounting plate (7) are rotatably connected to the first nut (2), the second nut (5) and the third nut (6) respectively via pins (11).

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