JPS6224834Y2 - - Google Patents

Description

[Detailed description of the invention] This invention has two shafts arranged in parallel, and is equipped with an electromagnetic clutch that supports a field core via a bearing at least at the ends of the same side of these two shafts. This relates to an electromagnetic coupling device.

The electromagnetic clutch attached to each end of the two shafts arranged in parallel must use some means to prevent rotation of the field core, which is a non-rotating member.

For this reason, conventionally, the field cores of the electromagnetic clutch supported on the shaft were individually fixed to a beam or the like using stays.

By the way, there is an electromagnetic coupling device in which one of two electromagnetic clutches concentrically supported at one end of each of the two shafts uses a rotor as an output drum, and an endless rope as a transmission member is wound around the output drum. Therefore, each time the rope is hung on or removed from the output drum, the stay supporting the field core must be removed.
It was extremely time consuming.

The inventor of this application, who conducted research to solve this problem, proposed that the field cores of an electromagnetic clutch, which are supported concentrically at the ends of two shafts, be connected to each other to prevent rotation, and that a member for the connection should be used. One end is fixed to the field core of the side from which the connecting member does not need to be removed, and the other end is detachably attached to the field core of the other electromagnetic clutch, that is, the field core from which the connecting member does not need to be removed. The field core is removably hooked to the core, and after the connecting member is removed from the field core, the field core on the side to which the connecting member is fixed is rotated on its axis. It has been found that the connecting member can be moved out of the way very easily without any tools.

This idea is based on the above knowledge, and is based on the above-mentioned knowledge.
Field cores of the two electromagnetic clutches in an electromagnetic coupling device comprising an electromagnetic clutch having two shafts, each supporting a field core via a bearing at least at the end of the same side of the two shafts. This provides an electromagnetic coupling device that can be extremely easily fixed to prevent rotation, and is extremely easy to handle and operate.It has two shafts arranged in parallel,
And at the ends on the same side of those two axes,
In an electromagnetic coupling device comprising an electromagnetic clutch that concentrically supports field cores via bearings, the base is fixed to one field core and the tip is fixed to the other field core over the outer end surfaces of the two field cores. It is unique in that it has a rotation prevention piece made of spring plate material that can be freely attached to and removed from the field core.

Next, the apparatus of this invention will be explained by way of embodiments with reference to the drawings.

FIG. 1 shows an embodiment of the device according to the invention in a partially cutaway side view, and FIG. 2 shows a front view. As shown in the drawing, the device A of this invention has two parallel shafts 1 and 2, three electromagnetic clutches 3, 4, and 5 concentrically supported on shaft 1, and shaft 2.
Two electromagnetic clutches 6 and 7 are supported concentrically on the top, a large-diameter chain wheel 8 is freely rotatably supported on the shaft 1, and a small-diameter chain wheel 9 is fixed on the shaft 2.
and each of these electromagnetic clutches 3, 4, 5,
Of 6 and 7, 3 and 6 are electromagnetic clutches supported on the ends of the shafts 1 and 2 on the same side, respectively.

The electromagnetic clutch 3 is an output drum 1 as a rotor.
0, a field core 12 incorporating an electromagnetic coil 11, and a drive shaft 13 which rotates together with the chain wheel 8 and is movable in the axial direction.
The output drum 10 has an armature 13 that can be magnetically attracted to the shaft 1, and a gear 14 is fixed concentrically to the output drum 10. Furthermore, a rope 15 that transmits torque to the input shaft (not shown) of the driven machine is wound around it several times. Furthermore, the output drum 10 has a boss portion 10A fixed to the shaft 1, and a bearing 16 is attached to the boss portion 10A.
The field core 12 is supported via the

The electromagnetic clutch 6 rotates together with a rotor 17 having a boss portion 17A fixed to the shaft 2 and a gear 18 supported on the shaft 2 so as to freely rotate, and is movable in the axial direction to prevent electromagnetic attraction to the rotor 17. A freely movable armature 19 and a field core 21 supported on the boss portion 17A of the rotor 17 via a bearing 20.
And, the electromagnetic coil 22 built into this field core
The gear 18 is meshed with the gear 14 via an intermediate gear 23.

The electromagnetic clutch 4 includes a field core 25 supported on the shaft 1 via a bearing 24, and a boss portion 26A on the shaft 1.
The rotor 26 is fixed to the rotor 26, the armature 28 rotates integrally with the gear 27 that is coaxially supported on the shaft 1 so as to freely rotate, is movable in the axial direction, and can freely magnetically attract the rotor 26, and the field core 25.
The gear 27 has a built-in electromagnetic coil 29, and the gear 27 is meshed with a gear 30 fixed concentrically to the shaft 2 via an intermediate gear 31.

The electromagnetic clutch 7 has a rotor 32 fixed to the shaft 2.
The field core 34 is supported on the boss portion 32A of the rotor 32 via a bearing 33, and the gear 35 is coaxially supported on the shaft 2 so as to freely rotate. It has an armature 36 capable of electromagnetic attraction, and an electromagnetic coil 37 built into the field core 34, and the gear 35 meshes with a gear 39 fixed to the shaft 1 via an intermediate gear 38.

The gear 39 is fixed concentrically to the boss portion 40A of the rotor 40 of the electromagnetic clutch 5, and the rotor 40 is connected to the shaft 1.
It is fixed to.

The electromagnetic clutch 5 rotates integrally with the rotor 40, a field core 42 supported via a bearing 41 on the boss portion 40A of the rotor, and a gear 43 coaxially supported on the shaft 1 so as to freely rotate, and rotates in the axial direction. It has an armature 44 that is movable and can freely magnetically attract the rotor 40, and an electromagnetic coil 45 built into the field core 42, and the gear 43 is attached to the boss of the rotor 32 fixed to the shaft 2. Part 3
It meshes with a gear 46 which is concentrically fixed to 2A.

The electromagnetic clutches 3, 4, 6, and 7 are electromagnetic clutches for forward rotation output, and the electromagnetic clutch 5 is an electromagnetic clutch for reverse rotation output, and the chain wheel 8 has 42 teeth and the chain wheel 9 has 42 teeth. 7, and gears 14, 18, 27, 30, 35,
The number of teeth of 39, 43, and 46 is sequentially changed to 70, 37, and 4.
5, 45, 36, 42, 47, 71.

The chain wheels 8 and 9 are connected via a common endless chain 47 to a small diameter chain wheel (not shown) attached to the output shaft of a power source.

By the way, the field cores 12 and 21 of the electromagnetic clutches 3 and 6 are provided with locking pieces 48, as shown in FIG.

The anti-rotation piece 48 is made of a spring plate material, has a base fixed to the outer end surface of the field core 21 with rivets 49, and has a hole 50 provided at the tip hooked to a protrusion 51 of the field core 12.

The device A of this invention having the above-mentioned configuration is attached to a device, and after the endless chain 47 is stretched across a small-diameter chain wheel (not shown) on the power source side and the chain wheels 8 and 9, the rotation prevention piece 48 is installed.
is bent as shown by the imaginary line in FIG.
When the field core 21 is disengaged from the field core 12 and then displaced by rotating the field core 21 around the shaft 2 to the position shown by the solid line in FIG. This means that there is no member to fix it.

In this state, the rope 15 can be freely wound around the output drum 10.

After the rope 15 has been wound, the detent piece 48 is returned from the position shown by the solid line to the position shown by the imaginary line in FIG. 4 by rotating the field core 21, and the hole 50 of the detent piece 48 is is engaged with the protrusion 51.

The field cores 12 and 21 with the anti-rotation piece 48 spanned over their outer end surfaces are in a state where they prevent each other from rotating, and are prevented from rotating without being fixed to the frame side.

In order to rotate the output drum 10 in a desired forward or reverse direction at a desired rotational speed, any one of the electromagnetic clutches 3, 4, 6, and 7 or the electromagnetic clutch 5 may be operated.

As is clear from the above explanation, the device of this invention has an extremely simple structure, but two
2 each supported at the end of the same side of the book shaft
The field cores of two electromagnetic clutches can be reliably stopped from rotating, and the anti-rotation piece can be attached and removed from the field core on the side where the anti-rotation member needs to be removed with great ease. It is something that you have.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the device of this invention with a part cut out, Fig. 2 is a front view, Fig. 3 is a side view illustrating the detent lever, and Fig. 4. is also a front view. In the drawings, A...device of this invention, 1, 2... shaft, 3,
4, 5, 6, 7... Electromagnetic clutch, 8, 9... Chain wheel, 10... Output drum as rotor, 11, 22, 29, 37, 45... Electromagnetic coil, 12, 21, 25, 34 , 42... Field core, 13, 19, 28, 36, 44... Armature, 14, 18, 27, 30, 35, 3
9,43,46...gear, 15...rope, 1
7, 26, 32, 40... Rotor, 47... Endless chain, 48... Rotating piece, 49... Rivet, 50... Hole, 51... Protrusion.

Claims (1)

[Scope of utility model registration request] An electromagnetic coupling device having two shafts arranged in parallel, and comprising an electromagnetic clutch that concentrically supports a field core via a bearing at the ends of the two shafts on the same side, Said 2
An electromagnetic coupling device in which a detent piece made of a spring plate material is strung across the outer end surfaces of two field cores, the base of which is fixed to one field core, and the tip of which is freely removable from the other field core.