JPH0527095U - Rope break detector - Google Patents

Abstract

(57) [Summary] [Purpose] The mechanism is simplified and miniaturized to make it easier to carry.
It is an object of the present invention to provide a rope disconnection detector which has improved disconnection detection performance and reliability in the rope mountain portion and the rope valley portion. [Structure] A detection wire 3 is stretched on one side of the main body 1 with a handle 2 at intervals, and a triangular pyramid-shaped valley detection protrusion 5 is provided on the other side of the main body 1. have.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a portable rope disconnection detector suitable for detecting disconnection of various wire ropes (cables).

[0002]

[Prior Art]

 Wire ropes are widely used for elevators, cargo handling such as cranes, tension lines for lifts and cableways, and for ships, etc. Differently, it is necessary to prevent the accident by detecting the deterioration of the mechanical properties and the deterioration of the mechanical properties at an early stage through regular inspections and daily inspections. For example, the Japan Crane Association requires regular inspections, special inspections, and daily inspections. For example, devices such as electromagnetic flaw detectors and portable rope disconnection detectors with a structure in which a pair of half-split cylinders are hinged so that they can be opened and closed have been developed. Detection, visual inspection, etc. are performed.

[0003]

[Problems to be solved by the device]

 The conventional electromagnetic flaw detection device described above has high-precision detection performance, but it is relatively expensive, has a heavy weight, is difficult to carry, and has problems such as labor and time required for detection. The rope breakage detector has the above-mentioned structure and has a relatively simple mechanism and is compact and easy to carry and can be used for daily inspections. Since multiple peaks on the entire circumference of the rope are detected at the same time, the feeling of catching cannot be felt unless the tip of the wire breaks up, and the grease on the rope surface fills the pair of half-split cylinders. As the diameter is expanded, the detection accuracy is reduced, and it is not possible to detect the valley of the rope, and it is not applicable to various wire ropes. In addition, the thread cutting saw blade has a problem in that grease on the surface of the rope is unnecessarily scraped off and adhered, and the valley of the rope cannot be detected.

The present invention was developed in order to address the above-mentioned problems, and the purpose thereof is to simplify the mechanism and downsize it for easy carrying, and to make the rope mountain portion and valley portion. Is to provide a rope disconnection detector with improved disconnection detection performance and reliability.

[0005]

[Means for Solving the Problems]

 The present invention has a triangular pyramid shape provided on the other side of the main body with a handle, which facilitates the detection of disconnection of the rope mountain portion by the detection wire stretched at one side of the main body with a space between the handle and the detection wire. The trough detection protrusion makes it easier to detect breaks in the rope trough, improving detection accuracy, simplifying the mechanism, and downsizing it for easier carrying and operation.

[0006]

[Action]

 By gripping the main body with a handle and applying a detection wire that is stretched at one side of the main body to the mountain portion of the rope and sliding it relative to each other, the grease on the rope surface will be affected significantly. It is possible to easily and accurately detect the disconnection state of the rope mountain portion without being hit, and to arrange the triangular pyramid-shaped valley detection protrusions on the other side of the main body inside the rope valley portion. The sliding condition makes it possible to easily and accurately detect the broken state of the rope troughs, and the detection can be performed easily and quickly. In addition, the mechanism is simplified and downsized, making it easy to carry and operate.

[0007]

【Example】

 1 and 3 show a first embodiment of the present invention, in which 1 is a main body with a handle 2, 3 is a detection wire, 5 is a protrusion for detecting a valley portion, and one side of the main body 1 with a handle 2 is shown. A rope disconnection detector is provided in which a detection wire 3 is stretched at a certain interval and a triangular pyramid-shaped valley detection protrusion 5 is provided on the other side of the main body 1.

More specifically, the main body 1 is formed in a long rectangular plate body as shown in the drawing, and a handle 2 with a collar 2a is continuously provided, and one side portion thereof is provided with an appropriate interval for detection. Mounting portions 6a and 6b of the wire 3 are provided in a protruding manner. Both ends of the detection wire 3 are inserted into holes 8 and 8 provided in the mounting portions 6a and 6b, and fixed by fixing screws 7 and 7. 3 is tensioned at one side of the main body 1 at a predetermined interval and is stretched in a detachable manner. Further, a triangular pyramid-shaped trough detection protrusion 5 is provided on the other side of the main body 1 as shown in the figure. The trough detection protrusion 5 is a rope trough portion of the wire rope a as shown in FIG. The handle 2 is formed to correspond to the groove shape of the cross section of c, and the handle 2 is provided with a storage hole 9 with an opening / closing lid 9a for storing the detection wire 3.

As shown in FIG. 3, when the handle 2 is gripped and the detection wire 3 is applied to the surface of the wire rope a and relatively slid in the X direction shown by the arrow, the detection wire 3 is caught in the rope mountain portion b. The wire breakage is caught and the wire breakage can be detected easily with high accuracy. The projection 5 for detecting the valley part is arranged in a fitting shape on the rope valley c, and an appropriate amount of twist is applied to the arrow x direction. When it is slid relative to, the disconnection state of the rope valley portion c can be easily detected with high accuracy. The detection wire 3 is selected and used for a wire having a desired diameter corresponding to the diameter of the constituent wires of the wire rope a, and the accuracy of detection of disconnection is enhanced. Further, the valley detecting projection 5 has a triangular pyramid shape and can also be used for detecting a plurality of types of rope valleys c, so that highly accurate detection performance can be obtained.

FIG. 2 shows a second embodiment of the present invention. Compared to the first embodiment, the fixing screw of the detection wire 3 is a T-shaped screw 17, and a large and small triangular pyramid is provided on the other side of the main body 1. It is characterized by a configuration in which projections 15a and 15b for detecting valley portions of a shape are provided side by side with an appropriate interval, and it is possible to detect the detection of the valley portions c of various shapes and the detection accuracy is improved. The valley detecting protrusions 5, 15a, 15b can be designed in various shapes other than the illustrated example.

[0011]

[Effect of the device]

 The present invention, which has the above-described structure, grips the main body with the handle, and the detection wire stretched at an interval on one side of the main body is applied to the rope mountain portion to slide relative to each other. The broken state of the rope mountain portion can be easily and accurately detected, and the triangular pyramid-shaped valley detecting protrusion provided on the other side portion of the main body is arranged in the rope valley portion and slid relative to each other. The broken state of the rope valley is easily and accurately detected to improve the rope breaking detection performance and reliability, and the mechanism is simplified and downsized, making it easier to carry and improving operability. It has advantages such as being used.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a second embodiment of the present invention.

FIG. 3 is a perspective view showing a wire rope disconnection detection state.

FIG. 4 is a cross-sectional view showing an example of a wire rope to be detected.

[Explanation of symbols]

 1 Main body 2 Handle 3 Detection wire 5 Protrusion for valley detection

Claims (1)

[Scope of utility model registration request] 1. A rope characterized in that a detection wire is stretched on one side of a main body with a handle at intervals and a triangular pyramidal valley detection protrusion is provided on the other side of the main body. Disconnection detector.