JPH0718036U - Gear type shaft coupling with clutch - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the misalignment of the shaft center due to the weight of the clutch of the gear type shaft coupling with clutch without being restricted by space. [Structure] A flange 16 of an outer cylinder 10 having an outer tooth 9 on its inner peripheral surface that meshes with an inner tooth 3 on the outer peripheral surface of the inner cylinder 4 fitted onto the end of the drive shaft 1 and an end of the driven shaft 5. In the gear type clutch joint with a clutch, in which the flange 17 of the outer cylinder 12 having the outer teeth 11 meshing with the inner teeth 7 on the outer peripheral surface of the inner cylinder 8 fitted on the outer surface is coupled by bolts, each inner cylinder 4, A bearing 15 is provided between the eight. [Effect] It is possible to prevent displacement of the shaft center without being restricted by space, and to easily engage and disengage the clutch.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a gear type shaft coupling with a clutch used for a reduction clutch or the like provided between left and right reduction devices of a rolling mill.

[0002]

[Prior art]

 A gear type shaft coupling with a clutch, which is used as a rolling clutch between the left and right rolling mills of a rolling mill, is a clutch that connects an external gear and an internal gear, and the clutch is disengaged by sliding the external gear and the internal gear. Be seen. The conventional gear type shaft coupling with clutch has a flange of an outer cylinder with an outer tooth on the inner surface that meshes with an inner tooth on the outer surface of the inner cylinder that is fitted onto the end of the drive shaft via a key. , The flanges of the outer cylinder having the outer teeth on the inner peripheral surface that mesh with the inner teeth provided on the outer peripheral surface of the inner cylinder fitted onto the end of the driven shaft via a key are respectively connected by bolts. .

The clutch of the gear type shaft joint with a clutch is disengaged by operating a lever engaging with a groove provided on the outer circumference of the outer cylinder on the driven shaft side by a cylinder or the like to slide each outer cylinder, The outer teeth of the outer cylinder on the driven shaft side mesh with the inner teeth of the inner cylinder, or the outer teeth of the outer cylinder on the driven shaft side mesh with the inner teeth of the inner cylinder. It is done by canceling. In the above conventional clutch-type gear type shaft coupling, if the gap between the bearings of the drive shaft and the driven shaft is large in the clutch disengaged state, the drive shaft and the driven shaft hang down due to the weight of the clutch, and the shaft center shifts. There is a problem that the operation of engaging and disengaging the clutch, especially from the disengagement to the engagement cannot be performed easily.

As shown in FIGS. 3 and 4, a gear type shaft coupling with a clutch that solves the above problem is provided with an inner tooth 33 provided on the peripheral surface of an inner cylinder 32 that is externally fitted to the end of the drive shaft 31. A flange 36 of an outer cylinder 35 having matching outer teeth 34 on its inner peripheral surface and an outer tooth 40 meshing with an inner tooth 39 provided on the peripheral surface of an inner cylinder 38 fitted on the end of a driven shaft 37 are internally provided. In the clutch type gear type shaft coupling in which the flanges 42 of the outer cylinder 41 provided on the peripheral surface are respectively coupled by bolts, bearings 43, 44 are respectively provided between the outer cylinders 35, 41 and the inner cylinders 32, 38. A gear type shaft coupling with clutch provided (Japanese Utility Model Laid-Open No. 4-124339) has been proposed. Reference numeral 45 is a concave groove with which a switching lever (not shown) is engaged.

[0005]

[Problems to be solved by the device]

 In the gear type shaft coupling with a clutch disclosed in Japanese Utility Model Laid-Open No. 4-124339, bearings 43 and 44 are provided between the outer cylinders 35 and 41 and the inner cylinders 32 and 38, respectively. It is necessary to lengthen the inner cylinders 32 and 38 according to the amount of slide, and there is a problem that it cannot be applied unless there is a wide space between the left and right rolling down devices of the rolling machine, which limits the space.

An object of the present invention is to provide a gear type shaft coupling with a clutch, which does not have a space limitation, does not cause a displacement of a shaft center due to a weight of the clutch, and can easily perform a clutch engaging / disengaging operation. It is to provide a gear type shaft coupling with a clutch that can be performed.

[0007]

[Means for Solving the Problems]

 The present inventors have conducted various studies to achieve the above object. As a result, a bearing is provided between the inner cylinders instead of the bearing between the outer cylinders and the inner cylinders of the gear type shaft coupling with clutch disclosed in Japanese Utility Model Laid-Open No. 4-124339. We reached the conclusion that it is not necessary to lengthen the inner cylinder according to the amount of slide, and the inner cylinders of the drive shaft and driven shaft are supported by bearings even when the clutch is disengaged, and it is possible to prevent shaft misalignment. I came up with the idea.

That is, according to the present invention, the flange of the outer cylinder having the outer teeth provided on the inner peripheral surface that meshes with the inner teeth provided on the outer peripheral surface of the inner cylinder externally fitted to the end of the drive shaft, and the end of the driven shaft. In the gear type clutch joint with clutch, in which the flanges of the outer cylinder having the outer teeth meshing with the inner teeth provided on the outer peripheral surface of the inner cylinder fitted to the outer portion are connected by bolts, respectively. A gear-type shaft coupling with a clutch, characterized in that a bearing is provided between the inner cylinders.

[0009]

[Action]

 In this invention, since the bearings are provided between the inner cylinders, the inner teeth on the inner peripheral surface of the driven shaft do not mesh with the outer teeth on the inner peripheral surface of the outer cylinder when the clutch is disengaged. The inner cylinder of is supported by bearings on the inner cylinder of the drive shaft. Therefore, the displacement of the driving shaft and the driven shaft from each other is prevented, the clutch can be easily engaged and disengaged, and the space is not restricted. Various bearings may be used as the bearings provided between the inner cylinders, and bushes may be used instead of the bearings.

[0010]

【Example】

 The details of this invention will be described below with reference to FIGS. FIG. 1 is a vertical sectional view of a gear type shaft coupling with a clutch of the present invention when the clutch is engaged, and FIG. 2 is a vertical sectional view of the same when the clutch is disengaged. In FIGS. 1 and 2, reference numeral 1 denotes a drive shaft, and an inner cylinder 4 having inner teeth 3 on its peripheral surface is externally fitted to an end of the drive shaft 1 via a key 2. Reference numeral 5 denotes a driven shaft, and an inner cylinder 8 having inner teeth 7 on its peripheral surface is externally fitted to an end portion of the driven shaft 5 via a key 6 like the drive shaft 1. An outer cylinder 10 having outer teeth 9 that mesh with the inner teeth 3 of the inner cylinder 4 on the inner peripheral surface is fitted onto the inner cylinder 4. Similarly, an outer cylinder 12 having outer teeth 11 that mesh with inner teeth 7 of the inner cylinder 8 on the inner peripheral surface is fitted onto the inner cylinder 8. The cartridge 13 and the shaft 14 are connected to the end faces of the inner cylinder 4 and the inner cylinder 8 by bolts (not shown), and hold bearings 15. The flanges 16 and 17 provided on the facing surfaces of the outer cylinders 10 and 12 are connected by bolts (not shown).

A not-shown lever operated by a cylinder or the like is engaged with a groove 18 on the peripheral surface of the outer cylinder 12 opposite to the flange 17. The lever is operated by the cylinder or the like to operate the outer cylinder. By sliding 10 and 12, as shown in FIG. 1, the outer teeth 11 of the outer cylinder 12 and the inner teeth 7 of the inner cylinder 8 are engaged with each other so that the clutch is engaged, or, as shown in FIG. The outer teeth 11 and the inner teeth 7 of the inner cylinder 8 are disengaged from each other so that the clutch can be cut.

Because of the above-described configuration, in the clutch engaged state shown in FIG. 1, the inner teeth 7 of the inner cylinder 8 and the outer teeth 11 of the outer cylinder 12 are meshed with each other, and the inner cylinder 8 is the outer cylinder 10. It is supported and rotated by an outer cylinder 10 that rotates together with the drive shaft 1 via inner teeth 3 of an inner cylinder 4 that meshes with the outer teeth 9 of FIG. Further, in the clutch disengaged state shown in FIG. 2, the inner teeth 7 of the inner cylinder 8 and the outer teeth 11 of the outer cylinder 12 are not meshed with each other, but the inner cylinder 8 includes the shaft 14, the bearing 15, and the cartridge 13. It is supported by the inner cylinder 4 that rotates together with the drive shaft 1.

Therefore, even in the clutch disengaged state shown in FIG. 2, the driven shaft 5 has an inner cylinder 8 externally fitted to the tip thereof which rotates together with the drive shaft 1 via the shaft 14, the bearing 15 and the cartridge 13. Since it is supported by the cylinder 4, the inner cylinder 4 of the drive shaft 1 and the inner cylinder 8 of the driven shaft 5 are prevented from being displaced from each other, and the clutch can be easily engaged and disengaged. Although the bearing 15 is used as a bearing between the inner cylinders 4 and 8, a bush may be used.

[0014]

[Effect of device]

 As described above, according to the present invention, it is possible to prevent the axial center misalignment between the inner cylinder on the drive shaft side and the inner cylinder on the driven shaft side of the clutch-type gear type shaft coupling without being restricted by space. It is possible to easily engage and disengage the clutch.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a gear type shaft coupling with a clutch of the present invention when a clutch is engaged.

FIG. 2 is a vertical sectional view of the gear type shaft joint with a clutch of the present invention when the clutch is disengaged.

FIG. 3 is a vertical cross-sectional view of a conventional gear type shaft coupling with clutch when a clutch is engaged.

FIG. 4 is a vertical cross-sectional view of a conventional gear type shaft coupling with clutch when the clutch is disengaged.

[Explanation of symbols]

 1, 31 Drive shaft 2, 6 key 3, 7, 33, 39 Inner teeth 4, 8, 32, 38 Inner cylinder 5, 37 Driven shaft 9, 11, 34, 40 Outer teeth 10, 12, 35, 41 Outer Tube 13 Cartridge 14 Shaft 1543,44 Bearing 16,17,36,42 Flange 18,45 Groove 43,44 Bearing

Claims (1)

[Scope of utility model registration request] 1. A flange of an outer cylinder having external teeth on its inner peripheral surface that mesh with internal teeth provided on the peripheral surface of an inner cylinder externally fitted on the end of the drive shaft, and an external flange at the end of the driven shaft. In a gear type clutch joint with a clutch, in which flanges of an outer cylinder having outer teeth meshing with inner teeth provided on the peripheral surface of the fitted inner cylinder are coupled by bolts, respectively. A gear type shaft coupling with a clutch, which is provided with a bearing.