JPS61102531A - Braking capacity testing device of winch - Google Patents

Abstract

PURPOSE:To optimize the replacing time of a brake lining with the portable device of a simple structure and small size and light weight and to enable the adjustment confirmation of a hydraulic disc brake by providing the jig projecting to the radial direction freely attachably and detachably on the winding drum flange of a winch so as to give the torque around the rotary shaft by a hydraulic jack. CONSTITUTION:A jig 1 is provided with its projection in the horizontal radial direction to the flange Bb of a winding drum setting the pinhole 1b of the main body 1a of the jig to a pin hole Bf and inserting a pin 1c after applying a brake with the pin hole Bf of a winch B setting to the horizontal position. A pressure is then applied by arranging a hydraulic jack 2 on the deck A of the lower part of the tip of the main body 1a of the jig. The braking force is thus measured by reading the hydraulic pressure at the time of the drum flange Bb starting to move with the jig main body 1a being pushed up by a hydraulic ram 2a.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a winch braking ability testing device.

[Conventional technology]

Conventionally, for winches such as mooring winches, there was no appropriate means for testing the braking capacity, so with the band brake system, the time to replace the lining had to be determined based on the lining's wear condition and usage condition. The brake method has the disadvantage that it is not possible to check the adjustment.

[Problem that the invention seeks to solve]

The present invention has been proposed in view of the above circumstances.
The purpose of the present invention is to provide a winch braking capacity testing device that is simple in structure, small, lightweight, and portable, and is used to optimize the timing of band brake lining replacement and to check the adjustment of hydraulic disc brakes.

[Means for solving problems]

To this end, the present invention provides a jig that is removably attached to and protrudes in the radial direction from the winding drum flange of the winch, and a hydraulic jack that applies torque around the rotation axis of the winding drum flange to the outer end of the jig. It is characterized by the following.

[Effect]

With the above-described configuration, it is possible to obtain a winch braking capacity testing device that is simple in structure, compact, lightweight, and portable, and that aims to optimize the timing of replacing the lining of a band brake and to check the adjustment of a hydraulic disc brake.

〔Example〕

An embodiment of the present invention applied to a full-scale mooring winch will be explained with reference to the drawings.
Figure 2 is a plan view taken along arrows ■-■ in Figure 1, Figure 3 is a partially enlarged side view showing the jig in Figure 1, and Figure 4 is rV-I in Figure 3.
The V-horizontal sectional view and FIG. 5 are explanatory diagrams showing the mechanical relationship of the present device.

In the above diagram, A is the deck and B is the winding barrel Ba.

Winding drum flange Bb, band brake Be, lining B
d and bearing Be, etc. A belt brake type mooring winch consisting of υ, Bf is a hole drilled near the outer edge of the winding drum flange Bb, and ia is a circular arc along the circumference of the outer edge of the winding drum flange Bb. The jig main body, ib and lb, which have a spacer fe sandwiched between one end of two horizontally long plates and fixed to each other, are bored at appropriate positions in the spaces at the other ends of the two horizontally long plates of the jig main body 1a, respectively, facing each other. Bottle hole 1c is bottle hole 1b
11b and Bf, 1a to 1c cooperate to constitute the jig 1 according to the present invention. 02 is a hydraulic ram 2a.
, a hydraulic jack consisting of a hydraulic pipe 2b, a pressure gauge 20, a hydraulic pump 2d, etc.

In such a device, first set the bottle hole Bft of the mooring winch B in the horizontal position, apply the brake with the belt V-key Be, and then set the bottle hole 1b and l of the jig main body 1a.
By aligning it with the bi pin hole Bf and inserting the pin IC, the jig 1t - the winding drum flange Bb is provided horizontally protruding from the flange Bb, and a hydraulic jack is installed on the deck A below the tip of the jig main body 1a. Place 2.

Next, pressure is applied to the hydraulic jack 2, and the jig main body 1ai is pushed up by the hydraulic ram 2a, and the 1st roll cylinder 72nd Bb begins to move.
The mechanical relationship when reading the oil pressure p at 〇7 is as shown in Fig. 5, where F: Push-up force of the hydraulic ram 2a (cut n) T: Tensile pressure of the steel cable, -Kika (1,,,)p; Reading of pressure gauge 2C (KIi10+t) S: Horizontal cross-sectional area of hydraulic ram 2a (crl) Ll: Distance between center and surface of winding drum Ba (α) L, for two windings Distance (in units) between the center of Ba and the push-up point of the hydraulic ram 2a According to such a device, the following effects can be achieved.

(1) Since the braking force T can be easily measured, the hydraulic disc brake can be adjusted. (2) The ability of the lining Bd of the band brake can be measured, so the timing for replacing the lining Bd can be optimized. .

(3) Since it is small and lightweight, it is easy to transport.

The above has described an embodiment in which the present invention is applied to a complete mooring winch, but the present invention is applicable to other applications.

This can also be applied to general winches.

〔Effect of the invention〕

In short, according to the present invention, there is provided a jig that is removably attached to and protrudes in the radial direction from the winding drum flange of a winch, and a hydraulic jack that applies torque around the rotation axis of the winding drum flange to the outer end of the jig. The present invention is industrially advantageous because it provides a winch braking capacity testing device with a simple structure, small size, light weight, and portability, which is capable of optimizing the timing of band brake lining replacement and confirming the adjustment of hydraulic disc brakes. It is extremely useful.

[Brief explanation of drawings]

Fig. 1 is a side view showing the installation procedure of an embodiment in which the present invention is applied to a mooring winch, Fig. 2 is a plan view taken along the ■-■ arrow in Fig. 1, and Fig. 3 is a jig shown in Fig. 1. FIG. 4 is a horizontal sectional view taken along the line IV-IV of FIG. 3, and FIG. 5 is an explanatory diagram showing the mechanical relationship of the device. 1...Jig, 1a...Jig body, lb, lb...pin hole, IC...bottle, 2...hydraulic jig. 2a...Hydraulic ram, 2b...Hydraulic pipe, 2c...Pressure gauge,
2d... Hydraulic pump, A... Deck, Ba... Winding drum, Bb... Winding drum flange, B
e...Ho brake, Bd...lining. Be... Bearing, Bf... Pin hole, F... Push-up force of hydraulic ram 2a, L... Distance between the center of winding drum Ba and the surface, Lx... Center of winding drum Ba and hydraulic ram Distance between push-up point 2a, p...reading of pressure gauge 2C, S...horizontal cross-sectional area of hydraulic ram 2a, T...braking force, sub-agent Masa Tsukamoto, patent attorney Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] A jig that is removably attached to and protrudes in the radial direction from a winding drum flange of a winch, and a hydraulic jack that applies torque around the rotation axis of the winding drum flange to the outer end of the jig. A winch braking capacity testing device characterized by: