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Locking pins, locking pin rotation tools, and connection release mechanisms

A technology of rotating tools and locking pins, applied in the field of locking pins, to achieve the effect of reducing the number and reducing the number

Inactive Publication Date: 2016-06-15
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the conventional locking pins described above, since two operators need to be at the opposite ends—that is, at the side of the nut on the end of the locking pin and at the side of the head—for rotating the locking pin , so there is the problem of requiring many work steps

Method used

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  • Locking pins, locking pin rotation tools, and connection release mechanisms
  • Locking pins, locking pin rotation tools, and connection release mechanisms
  • Locking pins, locking pin rotation tools, and connection release mechanisms

Examples

Experimental program
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Embodiment Construction

[0035]Now, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

[0036] figure 1 It is a schematic sectional view showing a connecting structure for connecting the roll 1 and the coupling 2 according to the embodiment of the present invention.

[0037] The connection structure includes a roller 1 , a coupling piece 2 and a locking pin 3 . The roll 1 has a roll neck 43 , while the coupling 2 has a roll neck engaging hole 41 . The roll neck 43 is engaged with the roll neck engaging hole 41 . Such as figure 1 As shown, the roll 1 has a groove 21 formed on the outer peripheral surface 20 of the roll neck 43 and extending in a direction perpendicular to the axial direction of the roll 1 . The coupling 2 has a groove 23 formed on the inner peripheral surface 22 of the roll neck engaging hole 41 and extending in a direction perpendicular to the axial direction.

[0038] Such as figure 1 As shown, the groove 21 ...

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PUM

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Abstract

A head (31), a shaft (32) and an engagement protrusion (33) are formed on the lock pin (3). The engagement protrusion (33) is formed with: a rotation direction engagement portion (50) and an engagement flange portion (51), The rotational direction engaging portion (50) is continuous with the head portion (31) and the rotational direction engaging portion (50) can be engaged in the rotational direction, and the engaging flange portion (51) is continuous and engaged with the rotational direction engaging portion (50). The flange portion (51) can be engaged in the axial direction.

Description

technical field [0001] The present invention relates to a lock pin, a lock pin rotation tool and a connection release structure. More specifically, the present invention relates to a locking pin, a locking pin rotating tool and a connection release mechanism, which may be advantageously used in connection structures for connecting eg a roll of a rolling mill to a coupling connected to a drive shaft. Background technique [0002] Generally, as one example of a lock pin, there is a lock pin used in the connection structure disclosed in JP-A-H02-229607 (Patent Document 1). The locking pin is suitable for connecting the rolls of the rolling mill to a coupling fitted to the drive shaft. The locking pin has a notch in the form of a recess in the middle portion in the axial direction. [0003] The lock pin is inserted into the lock pin insertion hole in the coupling with the cutout directed to the roll neck engaging hole in the coupling. Then, in this state, the roll neck is ins...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B21/16B21B35/14F16B1/02F16B7/00F16B23/00
CPCF16B19/02B21B35/141B25B23/0035F16B21/12F16B21/16F16B23/0061
Inventor 米山展央
Owner JTEKT CORP