JPS597051B2 - Reversible speed coupling device - Google Patents

Abstract

PURPOSE:To equalize the inertia of an output shaft given to two sets of electromagnetic clutches which are mounted in parallel on the same shaft in a reversible speed change coupling device, by connecting a rotor of one clutch to an input shaft and armatures of both clutches to the output shaft. CONSTITUTION:The rotation of an input shaft 1 driven by a prime mover is transmitted to a rotor 9, hub 16 coupled therewith by a claw, gears 17, 31, intermediate gear (not shown), gear 26 and rotor 22 which is rotated normally. When an armature 10 of a first clutch mechanism 5 is pulled and pressed against the magnetic pole portion of the rotor 9 by energizing an electromagnetic coil 8, the rotation of the roror 9 side is transmitted to an output drum 28 through a leaf spring 13, hub 14, shaft 3 and hub 29 so as to be rotated with the same speed and direction as the input shaft 1. On the other hand, when a second electromagnetic clutch 20 is connected by energizing an electromagnetic coil 21, the output drum 28 is rotated with changed speed in the opposite direction to the input shaft 1.

Description

Detailed Description of the Invention The present invention outputs rotation in the forward direction or rotation in the reverse direction by exciting and coupling one or the other of two sets of electromagnetic clutch mechanisms arranged in parallel on the same line. This relates to an improvement of a reversible speed coupling device that is provided on the output side, so that the transmission torque generated by the clutch mechanism is the same for both clutch mechanisms despite the difference in the ratio of the forward rotational speed and reverse rotational speed that should be output to the output side. The main object of the present invention is to provide a device of this type that can provide the same output side inertia for both electromagnetic clutches.

The present invention will be specifically described below with reference to the illustrated embodiments.

In the drawings, reference numeral 1 denotes a hollow input shaft, which is inserted into the inner periphery of a magnetic yoke 6, which is a component of the first clutch mechanism 5 and a bearing 4, which is integrally formed with an input gear 2 and is fitted to a rotating shaft 3. It is supported by a bearing γ.

The first clutch mechanism 5 includes, in addition to the Doki yoke 6, an electromagnetic coil 8 housed within the yoke, a rotor 9 with one side facing the magnetic pole part connected to the yoke 6 across a magnetic gap, and further It is constituted by an armature 10 facing the other side of the heater with a magnetic gap in between.

The magnet yoke 6 is attached to the inner periphery of the outer frame 11,
The rotor 9 is supported by the bearing γ and a bearing 12 fitted to the output rotating shaft 3, and is dynamically connected to the input shaft 1 by a claw connection.

Further, the armature 10 is attached to a hub 14 on the rotating shaft 3 by a leaf spring 13.

Reference numeral 15 denotes a non-magnetic ring that magnetically separates the inner and outer circumferences of the rotor 9, and by this interposition, magnetic poles are formed on the inner and outer circumferences of the rotor.

Reference numeral 16 denotes a hub having a gear 11, which is dynamically connected to the rotor 9 at its outer peripheral edge and supported on the rotating shaft 3 via a bearing 18 at the inner periphery of the gear 1γ section.

19 is a magnet yoke 2 attached inside the outer frame 11
0, a second electromagnetic clutch mechanism consisting of a rotor 22 facing the magnetic pole part connected in this yoke across a magnetic gap, and an armature 23 facing one side of the quadrature across a magnetic gap, and the rotor 22 is a rotating shaft. 3 and a bearing 25 inserted into the inner periphery of the magnet yoke 20, and is claw-coupled to a gear 26 rotatably supported on the rotating shaft 3. are combined.

The arture 23 is connected to the output drum 28 by the plate spring 21.
can be attached to.

The output drum 28 is attached to the rotating shaft 3 via a hub 29.

Reference numeral 30 is a non-magnetic ring that magnetically separates the outer and inner circumferences of the rotor 22, and forms magnetic poles on the outer and inner circumferences.

Reference numeral 31 denotes an idler gear having two integrally arranged teeth, one of which meshes with the gear 1γ, and an intermediate gear (not shown) meshes between the other tooth and the tooth 26.

Note that the idle gear 31 is supported by a support shaft 32 provided laterally on the back surface of the magnet yoke 20.

In the above configuration, the input gear 2, the input shaft 1 integrated therewith, the rotor 9 claw-coupled to the input shaft, the hub 16 claw-coupled to the rotor 9, the gear 11 integrated therewith, the gear Idol gya 31 who engages with
, an intermediate gear (not shown), a gear 26, and a rotor 22 which is claw-coupled to the gear 26, are normally rotated at all times by power transmission from a prime mover, and the electromagnetic coil 8
The armature 1 of the first clutch mechanism 5
0 toward the magnetic pole part of the rotor 9 and press the armature against the transmission friction surface of the rotor 9, that is, when the first electromagnetic clutch mechanism 5 is clutched, the rotation of the rotor 9 side is caused by the armature 10. , leaf spring 13,
The signal is transmitted via the hub 14, rotating shaft 3, and hub 29 to an output drum 28 for driving a load.

The speed and rotation direction of the output drum 28 at this time are the same as those of the input shaft 1.

Next, the power supply to the electromagnetic coil 8 is cut off, the clutch connection of the first clutch mechanism 5 is released, and instead of this, current is supplied to the other electromagnetic coil 21 to attract the armature 23 toward the magnetic pole portion of the rotor 22. When the second electromagnetic clutch mechanism 19 is engaged as a clutch, the rotation of the rotor 22 is transmitted to the output drum 28 via the armature 23 and the leaf spring 21.

At this time, the rotation direction of the output drum 28 is determined by the gears 11 and 2.
6, the direction is opposite to that of the input shaft 1, and the speed is appropriately determined by the ratio of each gear that dynamically connects the rotor 9 and the rotor 22. This can be changed, and in the embodiment, rotation in the opposite direction (or speed is increased and transmitted).

Note that even if the input shaft 1 and the output drum 28 are replaced, there is essentially no difference in the above-mentioned operation, and power can be extracted from the rotary shaft 3 directly as an output shaft without using the output drum 28. Furthermore, in the embodiment, each armature 10.23 is supported by a leaf spring,
The leaf spring may also serve as a transmission member, or the armature may be supported by spline connections, and power may be extracted through these splines.

As described above, the present invention provides a
Since a series of gears for changing the direction of rotation is provided between the input sides of the electromagnetic clutch mechanism and the second electromagnetic clutch mechanism, the inertia on the output side of both clutch mechanisms is the same, and the torque of the second electromagnetic clutch mechanism is When a transmission mechanism is inserted into the power system after the transmission part, only the transmission torque of the second electromagnetic clutch mechanism or the transmission ratio with the first electromagnetic clutch mechanism changes, and when the load torque and load GD2 are constant, the transmission torque of both clutch mechanisms changes. The torque and amount of work will be different, and it will be necessary to change the coil capacity of both clutch mechanisms and the diameter of the friction transmission part. However, in the present invention, this does not occur and the coil capacity of both clutch mechanisms and the diameter of the friction transmission part are changed. can be made the same, the components of both clutch mechanisms can be made common,
It is possible to reduce the cost.

Furthermore, since the reversible gear part, which is a part of the gear, is provided on the input side of the second clutch, the input rotation direction is constant, and the influence of backlash of the reversible gear part is independent of the output side, eliminating the generation of gear noise and clutch switching. In addition, since a gear portion is located between both clutch mechanisms, it is easy to form a sealed structure for containing lubricating oil in this portion.

[Brief explanation of drawings]

The drawing is a longitudinal sectional view of the upper half of the embodiment of the present invention. 1...Input shaft, 3...Output shaft, 5,1
9...First and second electromagnetic clutch mechanisms, 9.29
...Rotor, 1γ, 26. 30...
Gah.

Claims (1)

[Claims] 1. A first electromagnetic clutch mechanism and a second electromagnetic clutch mechanism that are arranged in parallel on the same line and have their respective rotors supported on the same output shaft, and a power transmission between the rotors of both electromagnetic clutch mechanisms. A reversible speed coupling device comprising a series of gears for changing the direction of rotation connected to the rotor, the rotor of the first electromagnetic clutch mechanism being connected to the input shaft, and the armatures of both clutch mechanisms being dynamically connected to the output shaft, respectively. 0