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Limit wheel

A technology of limit wheel and roller, applied to limit wheel. It can solve the problem that the connection of the sub-cylinder is not strong enough

Inactive Publication Date: 2013-05-01
SINOSTEEL HENGYANG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the diameter of the cylinder is relatively large, generally more than 4 meters, its roundness is not high, so during butt welding, the sub-cylinder will produce axial movement, making the V-shaped groove at the butt joint deviate from the welding position of the welding torch, and the flux It will not be completely filled into the V-shaped groove, but partly falls outside the V-shaped groove, making the connection between the sub-cylinders not strong enough

Method used

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Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 As shown, the limit wheel includes a base 1, a pin shaft 2, a double-row cylindrical roller bearing 3 and a roller 4. The base 1 is in a reverse "E" shape, and includes a bottom plate 11, a lower support plate 12 and an upper support from bottom to top. Plate 13, the base plate 11 is in direct contact with the ground, the lower support plate 12 and the upper support plate 13 have through holes of the same size and coaxial respectively; the pin shaft 2 passes through the through holes on the lower support plate 12 and the upper support plate 13 The part of the pin shaft 2 exposed from the upper support plate 13 has a slot for the shaft end baffle 21 to snap in. The diameter of the end surface of the shaft end baffle 21 is greater than the diameter of the through hole on the upper support plate 13, and the shaft end baffle 21 snaps in. into the slot of the pin shaft 2, and fixed on the upper support plate 13 with screws to prevent the pin shaft 2 from mov...

Embodiment 2

[0019] Such as figure 2 As shown, the limit wheel includes a base 1, a pin shaft 2, a double-row cylindrical roller bearing 3 and a roller 4, and the inner hole of the roller 4 is installed with a first double-row cylindrical roller bearing 31 and a second double-row cylindrical roller bearing 32. In order to support the facing outer ring end faces of the two bearings, so that the outer ring end faces of the two bearings continue to be clamped by the first transparent cover 61 and the second transparent cover 62, the inner wall of the roller 4 is provided with a The annular boss 42 that supports the end faces of the outer rings of the two bearings in one piece, in order to make the end faces of the inner rings of the two bearings continue to be clamped by the first stop ring 51 and the second stop ring 52, between the two bearings A spacer 7 is installed on the pin shaft 2 to support the end faces of the inner rings of the two bearings. The center of the pin shaft 2 is provid...

Embodiment 3

[0021] Such as image 3 As shown, the limit wheel includes a base 1, a pin shaft 2, a double-row cylindrical roller bearing 3 and a roller 4. The part of the pin shaft 2 protruding from the lower support plate 12 has a slot, and a shaft end baffle is arranged in the slot. 21. The shaft end baffle 21 is fixed on the lower support plate 12 with screws, that is to say, the pin shaft 2 is fixed on the lower support plate 12, and the part of the pin shaft 2 exposed to the through hole of the upper support plate 13 is provided with a cast The integral cap 23 can reduce the stress of the shaft end baffle 21 when the pin shaft has a tendency to move downward; the rest of the structure is the same as that of the first embodiment.

[0022] The working principle and usage method of the present invention are as Figure 4 As shown, there are two initially docked cylinders 8, which are divided into a first sub-cylinder 81 and a second sub-cylinder 82, and slopes are respectively opened on ...

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Abstract

The invention discloses a limit wheel which comprises a base 1, a pin roll 2, double row cylindrical roller bearings 3 and a roller 4, wherein the base comprises a bottom plate 11, a lower support plate 12 and an upper support plate 13; the pin roll 2 penetrates through holes in the lower support plate 12 and the upper support plate 13, the double row cylindrical roller bearings 3 are sleeved on a part of the pin roll 2, which is positioned between the lower support plate 12 and the upper support plate 13, the roller 4 is sleeved on the double row cylindrical roller bearings 3, and a circle of annular groove 41 used for containing a cylinder body and provided with a slope end face is arranged in the outer circumference surface of the roller 4. The limit wheel disclosed by the invention is capable of absorbing radial jump generated by the cylinder body due to blocked axial movement, ensures that V-shaped grooves on a butting part of the cylinder body are always in the same axial position, and is especially suitable for the condition of large axial float displacement of the cylinder body.

Description

technical field [0001] The invention relates to an axial positioning device for butt welding of a large cylinder, in particular to a limiting wheel. Background technique [0002] Large-scale cylinders, such as smelting furnaces, often have an axial length of more than 30 meters, and the width of the steel plate used to manufacture the cylinder is generally about 10 meters. Therefore, to manufacture such a cylinder, several axial lengths must be processed first. It is a sub-cylinder of about 10 meters, and then these sub-cylinders are connected by axial butt welding. The specific method is to open a bevel at the butt joint of the sub-cylinders. After the two sub-cylinders are butted, a circle of V-shaped grooves is formed at the joints. A welding torch is fixed directly above the V-shaped grooves. Arrange a pair of support rollers radially, and then the adjacent sub-cylinders rotate slowly and synchronously, and the flux gradually fills the V-shaped groove, and the sub-cylin...

Claims

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Application Information

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IPC IPC(8): B23K37/053
Inventor 曾庆伟
Owner SINOSTEEL HENGYANG MACHINERY
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