JPH0714230U - Mating connection device - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent delay in the release time of the meshing connection device that prevents whirling. [Structure] A rod 5 is movably inserted into a through hole 4 of a rotor 3, and one end of the rod 5 is connected to the rotor 3 and an armature 1.
It was made to project in the gap between the two. A disc 17 is attached to the other end of the rod 5 so that the disc 17 is frictionally engaged with the field core 8 by the spring force of the braking spring 19. And the teeth 16 of the armature 12 and the rotor 3
By engaging the teeth 15 of the disc with the rod 5 moved by the armature 12, the disc 17 is separated from the field core 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a meshing connection device that prevents whirling due to tooth tip connection.

[0002]

[Prior art]

 Conventionally, a meshing connection device that prevents such whirling due to tooth tip connection has been proposed in "Electromagnetic Two Scratch" in Japanese Utility Model Laid-Open No. 4-129932. In this meshing connection device, a rod as a brake operating member is inserted into a through hole provided in a flange of a field core configured as a fixing member, and one end of this rod is frictionally engaged with a rear surface of a flange of an armature. A disc is installed. A braking spring having a spring force weaker than that of the return spring of the armature is arranged on the outer circumference of the rod. Further, a collar is fitted to the outer circumference of the rod between the flange of the field core and the brake disc so that the position can be adjusted.

When the exciting coil is energized to generate a magnetic flux, the armature is magnetically attracted to the rotor, and the teeth of the armature and the rotor are engaged with each other. Even if the tooth tips are connected, the armature is not braked by the disc and does not rotate. Also, when the armature and rotor teeth mesh, the collar on the rod strikes the flange of the field core, separating the disc and armature flange and releasing the armature braking.

[0004]

[Problems to be solved by the device]

 In such a conventional meshing coupling device, the armature must be separated from the rotor by the return spring against the whirling prevention braking spring, which delays the release time of the armature. In addition, it is difficult to adjust the spring force of the braking spring and the return spring. An object of the present invention is to provide a meshing connection device that solves the above problems.

[0005]

[Means for Solving the Problems]

 In order to achieve such an object, according to the present invention, a first rotating member having a plurality of teeth formed therein is supported by a driving member via an elastic release member so as to be movable only in the axial direction, and The second rotating member is formed with a large number of teeth that face the plurality of teeth with a predetermined gap in the axial direction, and is supported by the driven-side member so as to be integrally rotatable and whose axial movement is restricted. A plurality of brake operating members, which are disposed on the second rotating member so as to be movable only in the axial direction and have one end protruding into the gap, and a plurality of brake operating members which are attached to the other end of the brake operating member and contact the fixed member. A braking device including a releasable brake disk and a braking pressing body that frictionally engages the brake disk with a fixed member is provided, and each tooth of the first rotating member and the second rotating member mesh with each other. To be engaged More the brake operation member is moved against the pressing force of the braking pressure body, wherein the brake disc, characterized in that it is spaced from the fixed member.

[0006]

[Action]

 A predetermined gap is formed between the teeth of the first rotating member and the teeth of the second rotating member. Further, the disc is frictionally engaged with the fixed member by the pressing force of the braking pressing body, and the second rotating member is in the braking state. When the first rotary member is moved to the second rotary member in this state, the teeth of these rotary members are meshed with each other.

Here, even if the tooth crests of the moving first rotating member are hit against the tooth crests of the second rotating member and the tooth crests are brought into the connected state, the second rotating member is still operated by the braking device. It does not turn around as it is braked. When the teeth of the first rotating member and the teeth of the second rotating member are engaged with each other, the brake operating member is moved by the first rotating member and the disc is separated from the fixed member. Braking is released.

[0008]

1 is a cross-sectional view of a meshing connection device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of essential parts showing a tooth tip connection state, and FIG. 3 is a complete meshing connection state. FIG. In these drawings, the mesh connection device 1 is mounted on the driven shaft 2. A cylindrical boss portion of a rotor 3 as a second rotating member having a large number of teeth 15 is key-fitted to the driven shaft 2, and the boss portion of the rotor 3 has, for example, a circumferential direction 3 A stepped through hole 4 is provided at an equally divided position, and a rod 5 as a brake operating member is inserted therein. Further, a field core 8 having an exciting coil 7 therein is fitted to a boss portion of the rotor 3 via a bearing. The field core 8 is fixed to a driven member with a bolt or the like via a mounting plate 9 and is configured as a fixed member.

A gear 10 as a drive side member and a hub 11 are rotatably fitted to the driven shaft 2 via a bearing, and the spline groove formed on the outer periphery of the hub 11 has a first rotation. The spline groove of the armature 12 as a member is fitted. A headed pin 13 inserted from a recess 11a of the hub 11 is retained in the armature 12, and a return spring 14 as an elastic member for releasing fitted to the outer periphery of the pin 13 allows the armature 12 to be released. The rear surface of the is in contact with the hub 11. A cylindrical portion is formed on the outer periphery of the front surface of the armature 12, and a large number of teeth 16 that mesh with the teeth 15 of the rotor 3 are formed on the cylindrical portion.

A lining 18 that is frictionally engaged with the back surface of the field core 8 is fixed to a disk 17 fixed to one end of the rod 5 with a nut, and a braking pressing body fitted to the outer periphery of the rod 5 is attached. The disc 17 is frictionally engaged with the field core 8 by a braking spring 19 as shown in FIG.

In the meshing connection device 1 having such a configuration, when the exciting coil 7 is energized, a magnetic flux is generated, so that the armature 12 resists the spring force of the return spring 14 and is magnetically attracted to the rotor 3 side. The teeth 15 of the rotor 3 and the teeth 16 of the armature 12 mesh with each other, and the rotation of the gear 10 is transmitted to the driven shaft 2. Since one end of the rod 5 is projected into the gap between the armature 12 and the rotor 3, the disk 17 is separated from the field core 8 when the teeth 15 and 16 are in mesh with each other. Therefore, when the rotation of the armature 12 is transmitted, the so-called quarrel phenomenon in which the disk 17 brakes the rotor 3 is prevented.

When the excitation coil 7 is de-energized, the magnetic flux disappears, so that the armature 12 is separated from the rotor 3 by the spring force of the return spring 14. The disengaged rotor 3 blocks the rotation transmission on the armature 12 side. Further, since the disk 17 and the field core 8 are frictionally engaged by the spring force of the braking spring 19, the rotor 3 is prevented from inertial rotation and is held stationary.

When the above-described operation is repeated, the tooth crests of the teeth 15 of the rotor 3 and the tooth crests of the teeth 16 of the armature 12 may hit each other to be in a tooth tip connection state, but braking Since the disk 17 and the field core 8 are frictionally engaged with each other by 19, the rotor 3 is braked, and the rotation around the armature 12 is prevented.

In the above description, the release elastic body is the return spring formed of the coil spring. However, this may be a leaf spring, and the leaf spring may elastically support the armature 12 on the hub 11. Further, although the field core 8 is exemplified as the fixing member, it may be configured as a fixing member such as a housing of a driven member.

[0015]

【effect】

 As described above, in the present invention, the second rotating member is braked by the braking device when the teeth of the first rotating member and the second rotating member are in the tooth tip connection state. Further, since the pressing force of the braking pressing body is in the same direction as the restoring force of the releasing elastic body for separating the first rotating member from the second rotating member, the releasing time of the first rotating member is delayed. The problem was solved.

[Brief description of drawings]

FIG. 1 is a sectional view of an intermeshing connection device according to the present invention.

FIG. 2 is a cross-sectional view of essential parts showing a tooth tip connection state of FIG.

FIG. 3 is a cross-sectional view of essential parts showing a completely meshed and coupled state of FIG. 1.

[Explanation of symbols]

 3 2nd rotating member (rotor) 5 Brake operating member (rod) 12 1st rotating member (armature) 14 Elastic body for release (return spring) 15 teeth 16 teeth 17 disk 19 Braking body (braking spring)

Claims (1)

[Scope of utility model registration request] 1. A first rotating member, which is movably supported only in the axial direction by an elastic member for release via a driving side member and has a large number of teeth, and a large number of the teeth and a predetermined axial direction. The second rotating member includes a second rotating member that is formed with a large number of teeth facing each other with a gap and is supported by the driven member so as to rotate integrally with the driven member so as to be axially movable. A plurality of brake operating members arranged so as to be movable only in the axial direction and having one end protruding into the gap;
The brake device includes a brake disc that is attached to the other end of the brake operating member and that can be brought into contact with and separated from the fixed member, and a braking device that frictionally engages the brake disc with the fixed member. The rotating member and the teeth of the second rotating member are meshed with each other to move the brake operating member against the pressing force of the braking pressing body,
The meshing connection device, wherein the brake disc is separated from the fixing member.