JPH0320591Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electromagnetic brake maintenance device suitable for maintenance, inspection, and replacement of electromagnetic brakes, particularly brake linings and drums.

[Prior Art] A conventional electromagnetic brake has a pair of arms whose lower ends are rotatably supported on a frame, and an electromagnetic device installed between the free ends of the arms opens and closes the pair of arms. However, this was configured to apply a brake to the drum. The free end sides of the pair of arms are bridged by a main rod,
Its opening is regulated. Incidentally, a related device of this type includes Japanese Utility Model Publication No. 54-34144.

[Problem that the invention attempts to solve]

Conventional electromagnetic brakes were constructed as described above, so when replacing the brake lining, for example, it was necessary to pull out the main rod and then rotate each pair of arms in the opposite direction to remove them, which required two people. work was required. It would be desirable for one person to work alone to save labor, but this was not possible due to security issues.

An object of the present invention is to provide an electromagnetic brake maintenance device that allows one person to easily and quickly perform inspections or brake lining replacement work that involves disassembling the electromagnetic brake.

[Means for solving problems]

In order to achieve the above object, the present invention includes a pair of arms, one end of which is rotatably supported by a fulcrum pin on a frame, a brake lining is attached to the part facing the drum, and a closing direction for these arms. An electromagnetic brake maintenance device comprising a brake spring that applies a force, and an electromagnetic device provided at the other end of the arm to overcome the brake spring and release the arm, wherein the electromagnetic device includes a bolt. The electromagnetic brake consists of a holder having an open groove that fits into the holder, and a bracket formed integrally with the holder and having a notch that engages from below to support an adjustment bolt screwed onto the arm. When inspecting the brake lining or replacing the brake lining, engage the notch in the bracket with the adjustment bolt from below, fit the notch in the holder into the previously loosened bolt, tighten the bolt, and connect the arm to the electromagnetic device. It is supported through a holder and a bracket.

[Effect]

Because of the above configuration, when inspecting or replacing the brake lining that involves disassembly, position the bracket on the outside of the arm and engage the notch with the adjustment bolt from below, then open the notch in the holder. The holding body can be attached to the electromagnetic device by fitting into the bolt that has been loosened in advance and tightening the bolt, and the arm can be supported by the bracket from below the adjustment bolt on the outside of the arm. Therefore, there is no need for someone to support the other arm while one arm is removed, and the support pin that supports the arm in a rotatable manner becomes easier to remove, and when the support pin is removed, the arm falls downward. Disassemble without doing anything,
Subsequent installation work can be done easily and quickly.

〔Example〕

The embodiments of the present invention will be described above with reference to the drawings.

In FIG. 1 when the electromagnetic brake is viewed from the front and FIG. 2 when viewed from the side, there is a pair of arms 3 rotatably supported by a frame 15 on both sides of the drum 5 by a fulcrum pin 7. At the top end there is an electromagnetic device 6.

FIG. 3 is an enlarged view of the main parts. The maintenance device 13 according to the present invention includes a holding body 14 and this holding body 1.
4 and a bracket 12 integrally formed with the bracket 12. The holder 14 has a notch 14a into which a bolt 11 for attaching an end plate attached to the electromagnetic device 6 is fitted, and the bracket 12 has a notch 14a into which an adjustment bolt 9 screwed onto the arm 3 is engaged.
It has 2a. Moreover, the notch 14a of the holding body 14
are open at one end and are formed at the same spacing as the bolts 11, and by simply loosening the bolts 11, the bolts 1
It is designed so that it can be fitted from the side between the head of No. 1 and the end plate. Next, brake lining replacement work will be explained as an example.

First, the notch 12a of the bracket 12 is engaged with the adjustment bolt 9 provided on the arm 3.
Then, loosen the notch 14a of the holder 12.
Book electromagnetic device end plate mounting bolt 11
Tighten the bolt 11 accordingly. As a result, one arm 3 is fixed to the electromagnetic device 6 by the maintenance device 13.

Thereafter, in the same way as when working with two people, remove the lock nut of the main rod 1, remove the brake spring 2, and pull out the main rod 1. Next, the fulcrum pin 7
After removing the other arm 3, replace the brake lining.

In this way, it becomes possible for one person to work alone, and there are no security problems.

[Effect of idea]

As explained above, in the present invention, a holding body is attached to the electromagnetic device, and one arm is engaged with the bracket supported by the holding body to hold it, so that the electromagnetic device can play the role of one worker. This means that even one person can do the work. This results in
Labor saving in work is achieved. There is no problem in terms of security.

In addition, the fulcrum pin that rotatably supports the arm can be easily removed, and the arm will not fall downward when the fulcrum pin is removed, making disassembly and subsequent assembly easier and faster. be able to.

[Brief explanation of the drawing]

Figure 1 is a front view of the electromagnetic brake, Figure 2 is the front view of the electromagnetic brake.
The side view of the figure and FIG. 3 are enlarged perspective views of essential parts of the electromagnetic brake maintenance device. 3... Arm, 5... Drum, 6... Electromagnetic device, 12... Bracket, 13... Electromagnetic brake maintenance device, 14... Holder, 15... Frame.

Claims (1)

[Scope of utility model registration request] a pair of arms, one end of which is rotatably supported by a fulcrum pin on the frame, and a brake lining is attached to a portion facing the drum; a braking spring that applies a force in a closing direction to these arms; An electromagnetic brake maintenance device comprising an electromagnetic device provided on the other end of the arm to overcome a braking spring and open the arm, comprising: a holder having an opening groove that fits into a bolt provided in the electromagnetic device; , a bracket formed integrally with the holding body and having a notch that engages from below to support the adjustment bolt screwed onto the arm; when inspecting the electromagnetic brake or replacing the brake lining, the bracket After engaging the adjustment bolt with the notch from below, insert the notch in the holder into the previously loosened bolt, tighten the bolt, and support the arm to the electromagnetic device through the holder and the bracket. A featured electromagnetic brake maintenance device.