Saw head structure for sawing large-diameter steel pipe

Abstract

The utility model relates to the field of flying saws, and discloses a saw head structure for sawing a large-diameter steel pipe, which comprises a saw head body, a main shaft is rotatably arranged in the saw head body, a bearing body is rotatably arranged between the main shaft and the saw head body, the bearing body is a 6302 bearing, the shaft diameter of the bearing body is 100mm, and the diameter of the bearing body is 10mm. An oil cylinder lug ring is fixed to the rear side of the outer wall of the saw head body, a bearing swing shaft is arranged in the oil cylinder lug ring, a connecting piece is fixed to the front side of the outer wall of the saw head body, and a rotating piece is fixed to the front side of the connecting piece. In the utility model, the saw head body and the main shaft are rectified, the oil cylinder lug ring is designed into the bearing pendulum shaft, the bearing body is changed from 6316 to 6302, and the shaft diameter is changed from 80mm to 100mm, so that the radial bearing capacity of the saw head body is enhanced, the failure rate of equipment is reduced, the service life of the equipment is prolonged, and the production capacity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flying saws, in particular to a large-caliber steel pipe sawing saw head structure. Background Art

[0002] Flying saw is a flying saw machine. It is one of the key equipment in the welded pipe production line. Domestic and foreign experts have been conducting in-depth and extensive research on flying saw machines, and have continuously launched new precision-sizing flying saw machines. In 1983, the length measuring encoder was first placed on the flying saw carriage, which can perform secondary sizing control. The flying saw machine has a simple structure, reliable operation, and high-precision sizing cutting.

[0003] At present, most flying saw spindle bearings use 6316 bearings. When sawing large-diameter thick-walled steel pipes, the impact force on the saw head structure is high. Therefore, there are the following disadvantages: the radial load-bearing capacity of the flying saw head is poor, and then saw head failures often occur, such as bearing locking or saw head spindle breakage, resulting in reduced production capacity. Utility Model Content

[0004] The utility model aims to provide a large-caliber steel pipe sawing saw head structure to solve the problem that the radial load capacity of the flying saw saw head is poor, and then the saw head failures such as bearing locking or saw head spindle breaking often occur, resulting in reduced production capacity.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a large-diameter steel pipe sawing saw head structure, including a saw head body, a main shaft is rotatably arranged inside the saw head body, a bearing body is rotatably arranged between the main shaft and the saw head body, the bearing body is a 6302 bearing, the shaft diameter of the bearing body is 100mm, a cylinder earring is fixed to the rear side of the outer wall of the saw head body, a bearing swing shaft is arranged inside the cylinder earring, a connecting piece is fixed to the front side of the outer wall of the saw head body, and a rotating piece is fixed to the front side of the connecting piece.

[0006] Preferably, a plurality of first oil filling holes are formed on the top surface of the saw head body, and a second oil filling hole is formed on the top surface of the rotating member.

[0007] Preferably, two flanges are detachably provided between the saw head body and the main shaft, and the two flanges are respectively located at the left end and the right end of the saw head body. A plurality of threaded holes are respectively opened on one side of the two flanges, and bolts are respectively threadedly connected in the plurality of threaded holes, and the two flanges are respectively connected to the saw head body by bolts.

[0008] Preferably, an inner clamping plate is fixed to the outer wall of the main shaft, an outer clamping plate is slidably sleeved on the outer wall of the main shaft, an outer thread is formed on the outer wall of the main shaft, and a nut is threadedly connected to the outer thread.

[0009] Preferably, a pulley is provided at the left end of the main shaft.

[0010] Preferably, a limit pin is fixed on the outer wall of the main shaft.

[0011] Compared with the prior art, a large-caliber steel pipe sawing saw head structure using the above technical solution has the following beneficial effects:

[0012] 1. During use, the saw head body and the main shaft were modified. The cylinder earrings were designed as bearing swing shafts, the bearing body was changed from 6316 to 6302, and the shaft diameter was changed from 80mm to 100mm, which was conducive to enhancing the radial bearing capacity of the saw head body, reducing the equipment failure rate, extending the equipment life, and thus improving production capacity;

[0013] 2. During use, the first and second oil filling holes facilitate the staff to inject lubricating oil into the saw head body and rotating parts, effectively keeping the parts running smoothly and extending their service life. The flanges and bolts facilitate the staff to disassemble and assemble the spindle, allowing the staff to easily disassemble and maintain the spindle, improving maintenance efficiency and operating convenience;

[0014] 3. During use, the saw blade is clamped by the inner and outer clamps, and then the outer clamp is tightened by turning the nut to improve the fixation of the saw blade and ensure the safety and stability of the saw blade. The pulley is used to drive the main shaft to rotate, which can effectively drive the main shaft to rotate efficiently, improving the working efficiency and cutting accuracy of the saw head body. The limit pin is used to limit the position of the pulley when the staff installs it on the main shaft, so that the pulley is installed in the specified position, which improves the reliability and safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0016] Figure 2 It is an exploded schematic diagram of an embodiment.

[0017] Figure 3 It is a schematic diagram of the explosion of the inner and outer plates in the embodiment.

[0018] Figure 4 For example Figure 2 Enlarged schematic diagram at point A in the middle.

[0019] In the figure: 1. saw head body; 2. main shaft; 3. bearing body; 4. cylinder earring; 5. bearing swing shaft; 6. connecting part; 7. rotating part; 8. first oil filling hole; 9. second oil filling hole; 10. flange; 11. threaded hole; 12. bolt; 13. inner clamping plate; 14. outer clamping plate; 15. external thread; 16. nut; 17. pulley; 18. limit pin. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1-Figure 4 As shown, a large-diameter steel pipe sawing saw head structure includes a saw head body 1, a main shaft 2 is rotatably arranged inside the saw head body 1, a bearing body 3 is rotatably arranged between the main shaft 2 and the saw head body 1, the bearing body 3 is a 6302 bearing, and the shaft diameter of the bearing body 3 is 100 mm, a cylinder earring 4 is fixed to the rear side of the outer wall of the saw head body 1, a bearing swing shaft 5 is arranged inside the cylinder earring 4, a connecting piece 6 is fixed to the front side of the outer wall of the saw head body 1, and a rotating piece 7 is fixed to the front side of the connecting piece 6.

[0022] During use, the saw head body 1 and the main shaft 2 were modified, the cylinder earring 4 was designed as the bearing swing shaft 5, the bearing body 3 was changed from 6316 to 6302, and the shaft diameter was changed from 80mm to 100mm, which is beneficial to enhance the radial bearing capacity of the saw head body 1, and solve the problem of matching between the flying saw saw head cylinder and the saw head body 1 pin shaft, reduce the equipment failure rate, extend the equipment service life, and thus improve production capacity.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, a plurality of first oil filling holes 8 are provided on the top surface of the saw head body 1 , and a second oil filling hole 9 is provided on the top surface of the rotating member 7 .

[0024] During use, the first oil filling hole 8 and the second oil filling hole 9 facilitate the staff to inject lubricating oil into the interior of the saw head body 1 and the rotating part 7, thereby effectively maintaining the smooth operation of the components and extending the service life.

[0025] like Figure 1-Figure 4 As shown, two flanges 10 are detachably provided between the saw head body 1 and the spindle 2, and the two flanges 10 are respectively located at the left end and the right end of the saw head body 1, and a plurality of threaded holes 11 are respectively provided on one side of the two flanges 10, and bolts 12 are respectively threadedly connected in the plurality of threaded holes 11, and the two flanges 10 are respectively connected to the saw head body 1 by the bolts 12, and an inner clamping plate 13 is fixed to the outer wall of the spindle 2, and an outer clamping plate 14 is slidably provided on the outer wall of the spindle 2, and an external thread 15 is provided on the outer wall of the spindle 2, and a nut 16 is threadedly connected to the external thread 15.

[0026] During use, the flange 10 and the bolt 12 facilitate the disassembly and assembly of the spindle 2 by the staff, so that the staff can easily disassemble and maintain the spindle 2, thereby improving the maintenance efficiency and the convenience of operation. The inner clamping plate 13 and the outer clamping plate 14 facilitate the clamping of the saw blade, and then the outer clamping plate 14 is tightened by rotating the nut 16, thereby improving the fixation of the saw blade and ensuring the safety and stability of the saw blade.

[0027] like Figure 1-Figure 4 As shown, a pulley 17 is provided at the left end of the main shaft 2, and a limiting pin 18 is fixed on the outer wall of the main shaft 2.

[0028] During use, the pulley 17 is used to drive the spindle 2 to rotate, which can effectively drive the spindle 2 to rotate efficiently, thereby improving the working efficiency and cutting accuracy of the saw head body 1. The limit pin 18 is used to facilitate the staff to limit the pulley 17 when installing it on the spindle 2, so that the pulley 17 is installed at a specified position, thereby improving the reliability and safety of the operation.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large-caliber steel pipe sawing saw head structure, comprising a saw head body (1), characterized in that: A main shaft (2) is rotatably arranged inside the saw head body (1), a bearing body (3) is rotatably arranged between the main shaft (2) and the saw head body (1), the bearing body (3) is a 6302 bearing, and the shaft diameter of the bearing body (3) is 100 mm. A cylinder earring (4) is fixed to the rear side of the outer wall of the saw head body (1), a bearing swing shaft (5) is arranged inside the cylinder earring (4), a connecting piece (6) is fixed to the front side of the outer wall of the saw head body (1), and a rotating piece (7) is fixed to the front side of the connecting piece (6).

2. A large-caliber steel pipe sawing saw head structure according to claim 1, characterized in that: A plurality of first oil filling holes (8) are provided on the top surface of the saw head body (1), and a second oil filling hole (9) is provided on the top surface of the rotating member (7).

3. A large-caliber steel pipe sawing saw head structure according to claim 2, characterized in that: Two flanges (10) are detachably arranged between the saw head body (1) and the main shaft (2); the two flanges (10) are respectively located at the left end and the right end of the saw head body (1); a plurality of threaded holes (11) are respectively opened on one side of the two flanges (10); bolts (12) are respectively threadedly connected in the plurality of threaded holes (11); and the two flanges (10) are respectively connected to the saw head body (1) via the bolts (12).

4. A large-caliber steel pipe sawing saw head structure according to claim 3, characterized in that: An inner clamping plate (13) is fixed to the outer wall of the main shaft (2), an outer clamping plate (14) is slidably sleeved on the outer wall of the main shaft (2), an outer thread (15) is formed on the outer wall of the main shaft (2), and a nut (16) is threadedly connected to the outer thread (15).

5. The large-diameter steel pipe sawing saw head structure according to claim 1, characterized in that: A pulley (17) is provided at the left end of the main shaft (2).

6. A large-caliber steel pipe sawing saw head structure according to claim 5, characterized in that: A limit pin (18) is fixed on the outer wall of the main shaft (2).

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