KR101085438B1 - Brush structure using led roller - Google Patents

Abstract

The present invention relates to a brush structure of a current collector that can check the wear level at the time of picking up, and has a complicated configuration because there is no means for checking the wear level of the brush or a complex electrical signal must be detected. The present invention has been made in order to overcome these disadvantages as a pair of brushes are connected by a separate spring on both sides of one frame while checking the wear of the brush in the current collector portion of the conventional current collector separator. If you have a problem with the brush, you can use it as the remaining brush. In addition, by increasing the bonding force of the brush to prevent wear easily.

Description

Current collector brush structure that can measure wear level using roller LED {BRUSH STRUCTURE USING LED ROLLER}

The present invention relates to a brush structure of the current collector that can measure the wear level, it is to be able to immediately check that the wear of the current collector brush.

Apparatus according to the present invention is a device used in the collector equipment of the crane power supply in general, in a manufacturing plant such as steel mills to use a large crane to move a large structure, usually using a large crane moving a large distance and the movement In order to supply power to the crane, a current collector installed with a current collector brush moving in contact with a trolley wire installed adjacent to the crane is used. 1 is a conceptual diagram showing a conventional crane and a trolley, Figure 1b is a view showing a conventional current collector. 1A and 1B, in order to supply power to the crane 1, a trolley 3 is installed in the moving direction of the crane 1, and a current collector 5 is mounted on the crane 1. The trolley 3 is grounded. The current collector 5 is provided with a brush that moves along the crane 1 in a state of being grounded to the trolley 3. Since the brush moves to a state of being grounded with the trolley 3, the brush is frequently worn and thus the brush is frequently replaced. Occurs. In addition, there is a disadvantage that the maintenance cost is consumed by frequent replacement of the brush.

Conventionally, Korean Utility Model Application No. 1996-056745, 'Automatic Measurement Device for Collecting Brush Wear,' has been disclosed in order to monitor wear in a current collector. The wear level measuring device has a linear motion of a rack gear in a linear motion with a brush. Is changed to the rotational motion of the pinion gear and the rotational motion of the pinion gear is converted into the electrical signal by the potentiometer. However, it is not necessary to accurately display the degree of wear, and an error occurs while converting the wear degree into various signals, and it is easy to fail due to the configuration of a complicated device.

In addition, the device as described above is used in the brush of the new type of current collector, such as disclosed in the Republic of Korea Patent No. 10-0629361 'device that can automatically separate the trolley and current collector in the crane, and equipped with a safety protection net' There were also disadvantages that were difficult to do.

The present invention has been made in order to overcome the above-mentioned disadvantages, the object of the present invention is to provide a device that makes it easy to determine the replacement time of the brush by intuitively easy to grasp the wear state of the brush by a simple configuration do.

In order to achieve the object as described above to provide a brush structure of the current collector can check the brush wear, one of the brush is attached to the sensing roller, the sensing roller is formed in a cylindrical shape and can be rolled according to the movement of the brush It is attached in the direction that the end of the detection roller is coupled to the brush to match the wear limit of the brush, when the brush is worn so that the detection roller is rotated in accordance with the movement of the brush and the detection roller is a LED light source When the light is emitted by the rotation of the sensing roller when the wear occurs when the transparent synthetic resin material covers the outside thereof, light may be transmitted to the outside through the transparent synthetic resin. Therefore, when the wear occurs, the transparent plastic part touches the trolley and rolls.

The wear limit point of the brush is a position of 30% to 40% of the brush thickness and the brush may be integral and bolted and bonded to the device for fixing the brush.

When the detection roller is rotated to emit light may further include a sensor for detecting the light emitted by the detection roller.

The brush is mounted to the brush holder, the brush holder is mounted at both ends of the frame, the brush holder and the frame is connected by a piston spring, the insulating bracket 32 is attached to the rear surface of the frame to which the piston spring is attached The frame may extend toward the trolley.

The brush is one or more brushes are connected by one frame, one end of the sensing roller is attached, the brush is connected to the frame consisting of the arm can be a vertical compression type formed at an angle of 90 degrees with the current collector have.

The frame may be a light source detection window is advantageous to detect the light emitted from the detection roller from the light source detection sensor formed on the outside of the current collector.

It is possible to easily check the degree of wear by the brush structure as described above.

1A, 2B and 2 show a conventional current collector;
Figure 3 illustrates one embodiment of a brush structure according to the present invention.
4 shows a current collector in which a brush structure according to the present invention is used.
5 and 6 show the adhesive form of the brush.
Figures 7, 8 and 9 show yet another embodiment according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 2b is a view showing a conventional current collector, Figure 3 is a current collector according to the present invention Figure 4 is a view showing a current collector in which the current collector of Figure 3 is used. As shown in Fig. 2a, two sets of brushes 150 are connected to one arm and connected to one spring by connecting a spring to the middle of the arm (not shown) so that the trolley is pressed into the spring. Because of the continuous connection at meter intervals, brush units often collide when passing through the joint section between trolleys, which is often affected by the power supply. In addition, when the spring was detached, the two brush units were all detached and the power supply was often cut off. In addition, the spring used in Fig. 2b is a tension type spring, and in some cases, the brush is separated from the rail when there is a slight impact or shaking, which affects the power supply.

The current collectors of FIGS. 3 and 4 are mounted on a crane and extend to the trolley 3 extending in the moving direction of the crane 1 and one or more piston type springs 31 at both ends of the frame 110. A brush 150 connected to each other is attached, and a sensing roller 160 is attached to an upper end of any one of the brushes.

In addition, a piston type spring 31 is attached to the back of the brush 150, and the insulating bracket 32 is formed in the frame and the connecting portion in the direction of the spring back. In addition, an insulator 33 is formed in the frame to cut off the high voltage power.

As described above, although the current collector has a structure in which two brushes 150 are connected to one spring, in the present invention, two sets of brush units are compressed to the trolley by each spring. Therefore, even if one brush unit is detached or damaged by the impact of the brush unit or spring, it does not affect the other brush unit and does not affect the power supply or equipment operation. It becomes possible.

The brush 150 may have a shape integrally formed with copper or graphite. However, for convenience of manufacture, copper blocks made of copper are positioned on both sides, and the graphite blocks are positioned integrally with two copper blocks located on both sides, or bolts penetrating the two copper blocks and the sides of the graphite blocks. Two copper blocks and graphite blocks may be fastened and used. The brush formed integrally is easy to process and can be less expensive to replace, and the detachable type has the advantage that it can be easily used to quickly replace the graphite or copper block.

In addition, a light source detection window 163 may be formed in the frame, and a light source detection sensor 162 may be formed to detect light generated in the detection roller 160 formed in the brush through the light source detection window. When the sensing roller is formed in the space between the brush and the brush, the volume occupies as a whole, so it is preferable to form the light source sensing window and form the sensing roller as the space between the brush and the brush. If the detection roller is formed on the outside of the brush, there is a risk of contact with the other brush, but it is also good to form on the outside if sufficient gap is secured.

5 and 6 show another embodiment of the brush. In Figures 5 and 6, the brush is integrally manufactured to prevent the brush from being separated, but the bonding is performed by using a bond on the corresponding surface marked in pink. You can do that. It also does not exclude forming the brush in a detachable manner. The part marked in pink is formed to be perpendicular to the bolt engaging surface, so that the brush does not come off.

7 shows one embodiment of the sensing roller. The crane 1 moves along the rail, and as the crane 1 moves, the brush 150 is gradually thinned as the brush 150 is worn by the trolley 3. Therefore, when the lowest point of the detection roller 160 is positioned to match the wear limit of the brush 150, when the brush 150 is worn to the wear limit point, the detection roller 160 is in contact with the trolley 3 and the detection roller ( The sensing roller 160 rotates by the friction between the 160 and the trolley 3. When the sensing roller 160 rotates, as shown in FIG. 7, the sensing roller 160 is made of a transparent synthetic resin material so that the light emitted from the sensing roller 160 may be emitted while the LED 161 mounted inside the sensing roller emits light. It consists of. The operator can see the light emitted from the sensing roller 160 to recognize that the brush is worn to the wear limit. In addition, by installing a separate light source sensor 162 it can be recognized that the wear of the detection roller to the wear limit point.

On the other hand, although not shown in the figure, as the sensing roller 160 rotates, the LED emits light by electromotive force generated by the permanent magnet and the coil due to the rotation of the sensing roller. Therefore, a separate power supply or a battery is not necessary, and the detailed description of the LED driving principle is already known since it is omitted.

8 shows a side view of a shape in which the sensing roller 160 is formed on the outside of the brush. The sensing roller 160 moves from side to side in the state in which the current collector is attached to the current collector in the initial operation state of the current collector, and is initially positioned slightly higher than the brush so as not to touch the bottom surface. If you continue to operate for a long time in this state, the brush made of carbon and copper progresses and if the wear of the brush progresses more than 30% (usually about 10cm apart), the bottom surface of the sensing roller comes into contact with the trolley bar. As it progresses from side to side, the sensing roller rotates. The rotational force generates electromotive force in the coil of the sensing roller and emits the sensing roller. Electromotive force is generated by the rotation of the roller, and the technique of emitting light using the technique is a well known technique, and thus a detailed description thereof will be omitted. However, in the present invention, by introducing the sensing roller in this way can be confirmed in advance before the wear of the brush further progress can be prevented in advance the accident that may occur by failing to check the wear of the brush. These sensing rollers generate electromotive force on the inside and are formed with LEDs for emitting light. On the outside, the sensing rollers are covered with a transparent synthetic resin so that the LEDs do not hit the bottom while rotating while touching the bottom.

9 shows a vertical compression type current collector. All of the above described was a left-right or horizontal crimp type, but shown in FIG. 9 is a vertical compression type current collector. In other words, the movement direction of the brush is up and down, and it is pressed down from the top to the bottom. Compared with the horizontal compression type, the left and right compression type frame is formed on the upper part of the brush and the piston spring is used. It is formed on the side of the piston and no piston spring is used. The frame is constructed using multiple arms and connected with a brush so as to have a slight elasticity in the vertical direction only when the frame is formed. In addition, the probe of the sensor touches the insulating bracket from below. In addition, by using a separate light source detection sensor 162 in the position that can detect the light generated from the detection roller, whether vertical or vertical compression type, it is to detect the light generated from the LED roller.

Conventional device for measuring the wear level of the brush continuously generates a signal to monitor the wear of the brush, but the present invention generates a signal from the moment when the wear occurs, it operates only when necessary and also needs to be operated using an external power source There is no possibility of failure because it is operated by simple mechanical principle.

In addition, the light emission signal detected by the detection roller may be transmitted to the server (not shown) by wire or wireless to be delivered to the operator or supervisor. These signals can be immediately delivered in the form of SMS via a SMS (Short Message) sending server to allow quick action for worn brushes. In addition to SMS, it may be to transmit a bell or a prestored voice message in the workplace.

1: crane 3: trolley
31: piston spring 32: insulation bracket
33: pressure sensor 41: main body
150: brush 160: detection roller
161: LED 162: light source detection
163: light source detection window

Claims (6)

As brush structure of current collector which can check brush abrasion
The sensing roller is attached to any one of the brushes, the sensing roller is formed in a cylindrical shape and attached in a rollable direction according to the movement of the brush, and the end of the sensing roller is attached to the brush so as to match the wear limit of the brush. When the brush is worn, the sensing roller is rotated according to the movement of the brush. The sensing roller is equipped with an LED light source and the outside thereof is covered with a transparent synthetic resin material so that the light is emitted by the rotation of the sensing roller. Brush structure of the current collector that can check the wear of the brush, characterized in that for detecting the light emitted through
According to claim 1, wherein the wear limit of the brush is a position of 30% to 40% of the thickness of the brush and the brush is a one-piece, characterized in that the brush wear check, and bolted and bonded with the device for fixing the brush. Brush structure of possible collector
The brush structure of a collector according to claim 2, further comprising a sensor for detecting light emitted by the detection roller when the detection roller rotates to emit light.
The frame according to claim 3, wherein the brush capable of checking the wear of the brush is mounted to a brush holder, the brush holder is mounted at both ends of the frame, and the brush holder and the frame are connected by a piston spring, and the piston spring is attached to the frame. Insulation bracket 32 is attached to the rear surface of the frame is characterized in that the frame extends toward the trolley, the brush structure of the current collector can check the brush wear The brush of claim 3, wherein one or more brushes are connected by one frame, and a sensing roller is attached to one end thereof, and the brush is connected to a frame made of an arm and formed at an angle of 90 degrees with the current collector. Brush structure of current collector which can check brush abrasion which is characterized by up-and-down compression type
According to claim 4 or 5, The light source detecting window is formed in the frame to facilitate the detection of the brush wear, characterized in that it is advantageous to detect the light emitted from the detection roller from the light source sensor formed on the outside of the current collector. Brush structure of current collector

Images