WO2018182110A1

WO2018182110A1 - Operation time recording device and hydraulic breaker comprising same

Info

Publication number: WO2018182110A1
Application number: PCT/KR2017/009355
Authority: WO
Inventors: 조재상; 김태용
Original assignee: 주식회사수산중공업
Priority date: 2017-03-30
Filing date: 2017-08-28
Publication date: 2018-10-04
Also published as: KR20180110806A

Abstract

The present invention relates to an operation time recording device and a hydraulic breaker comprising the same and, particularly, to: an operation time recording device which can record the operation time of a hydraulic breaker while having a simple structure, thereby achieving high compatibility and manufacturing cost reduction, and can also minimize malfunctions, thereby accurately measuring the operation time of a hydraulic breaker; and a hydraulic breaker comprising the same.

Description

Operation time recorder and hydraulic breaker having the same

The present invention relates to an operating time recording apparatus and a hydraulic breaker having the same, and in particular, mounted on construction equipment such as an excavator, the piston is raised and lowered and hitting the chisel, the chisel is provided in the hydraulic breaker to break the rock, etc. It relates to a hydraulic breaker equipped with an operating time recording device for recording the operating time of the operating time recording device.

Hydraulic breaker is a device that is installed in construction equipment such as excavators and loaders to crush rock or concrete. The piston is raised and lowered to hit the chisel, which is a crushing tool, and the chisel impact force on crushing objects such as concrete and rock. Add to shred.

As the hydraulic breaker is used for a long period of time, the chisel or the piston is damaged and breakage occurs. Therefore, the chisel and the piston should be replaced.

Therefore, the development of a device for measuring or recording the operating time of the hydraulic breaker in terms of maintenance of the hydraulic breaker has emerged.

As a device for recording the operating time (or operating state) of the breaker as described above, it is known that the Korean Patent No. 10-1609834 (hereinafter referred to as "Patent Document 1").

As shown in FIG. 10, the operation state recording apparatus 100 of Patent Document 1 includes a pressure sensor 1 measuring a pressure inside the upper chamber 210 provided in the cylinder 201 of the hydraulic breaker 200. And a perforation in which the piston 202 strikes the chisel 203 by using the pressure measurement value inside the upper chamber 210 measured by the pressure sensor 1 and using the area and the pressure measurement value of the upper hydraulic pressure surface A1. The operation control unit 2 for calculating the number of times, the data storage unit 3 for storing the measured value of the pressure sensor 1 and the value calculated by the operation control unit 2, and the power supply unit 4 for supplying power It is configured to include.

In this case, the arithmetic and control unit 2 calculates the magnitude of the force acting on the upper hydraulic pressure surface A1 by multiplying the received pressure measurement inside the upper chamber 210 by the known upper hydraulic pressure surface A1 area. The magnitude of the force acting on the upper pressure receiving surface A1 is applied to the lower pressure receiving surface A2 calculated by multiplying the known pressure acting on the lower pressure receiving surface A2 by the area of the known lower pressure receiving surface A2. If it is larger than the magnitude of force, the number of times per hour chisel's perforation is counted by knowing how many times in a given time.

However, the operation state recording apparatus 100 of Patent Document 1 requires a complex and many electrical devices such as a pressure sensor 1, arithmetic and control unit 2, storage unit 3, power supply unit 4, and, thus, There is a problem that an increase in manufacturing costs may occur.

In addition, a complicated electric device may be frequently malfunctioned by a hydraulic breaker that generates a lot of vibration during operation, due to this, the operation of the hydraulic breaker may not be properly recorded, or furthermore, the operation state recording device 100 itself is broken. There is a risk.

In particular, in the operation state recording apparatus 100 of Patent Document 1, by measuring the pressure inside the upper chamber 210 by the pressure sensor 1, the operation state of the hydraulic breaker is calculated, the hydraulic breaker can be used for a long time In this case, the malfunction of the pressure sensor 1 may be further intensified by the vibration for a long time, and thus, there is a problem that an accurate operation state calculation cannot be achieved.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and by recording the operating time of the hydraulic breaker in a simple configuration, while achieving high compatibility and manufacturing cost reduction, it is possible to measure the accurate operating time of the hydraulic breaker by minimizing malfunctions. An object of the present invention is to provide an operating time recording apparatus and a hydraulic breaker having the same.

An operating time recording apparatus according to an aspect of the present invention is provided in a hydraulic breaker having a piston that is operated by lifting and lowering by hydraulic pressure, and a chisel that is hit by the piston to strike the ground to record the time of operation of the piston. An operating time recording apparatus, comprising: a generator for generating electric power by vibration generated by the operation of the piston; An hour meter operating on electric power generated by the generator and recording time during operation; And a posture detection unit which is operated when the hydraulic breaker is in an operating position to apply power generated by the generator to the hour meter.

In addition, a buffer member surrounding the body of the operation time recording apparatus, the spring is provided therein; And a urethane pad surrounding the buffer member.

In addition, the posture detection unit, the body fixed to the cylinder of the hydraulic breaker; A light emitting part and a light receiving part provided in the body; And a light source blocking plate rotatably connected to the body by a rotating shaft, and having an eccentric portion rotating in a gravity direction, wherein the light source blocking plate is disposed between the light emitting portion and the light receiving portion. As a result, the light source irradiated from the light emitting unit is prevented from being detected by the light receiving unit, and the light source irradiated from the light emitting unit detects the light receiving unit.

In addition, the auxiliary generator for generating power by the vibration generated by the operation of the piston, connected to the posture detection unit for applying power; characterized in that it further comprises.

A hydraulic breaker according to one aspect of the present invention is a hydraulic breaker having a piston operating by lifting and lowering by hydraulic pressure, and a chisel hitting the ground by hitting the piston, wherein the hydraulic breaker is provided to operate the piston. An operation time recording device for recording a time; wherein the operation time recording device comprises: a generator for generating electric power by vibration generated by the operation of the piston; An hour meter operating on electric power generated by the generator and recording time during operation; And a posture detection unit which is operated when the hydraulic breaker is in an operating position to apply power generated by the generator to the hour meter.

According to the operation time recording apparatus and the hydraulic breaker having the same according to the present invention as described above has the following effects.

Only when the power generation condition of the generator and the operating position of the posture detection unit are satisfied, the operating time of the hydraulic breaker is recorded, so that the actual time of operation of the hydraulic breaker can be accurately measured.

Efficiently prevent the operation time recording device from being damaged or malfunctioned by vibrations transmitted to the operation time recording device by the buffer member and the urethane pad provided in the operation time recording device, that is, the vibration generated by the operation of the hydraulic breaker. can do.

Since the operating time recording apparatus is of a very simple configuration, reduction of manufacturing cost can be achieved.

The circuit system of the operating time recorder does not have a configuration connected with other components of the hydraulic breaker, so that the operating time of the hydraulic breaker can be recorded independently. Therefore, the operation time of the hydraulic breaker can be easily recorded by simply installing the operation time recording device on the hydraulic breaker, so that the installation is very easy and high compatibility is ensured.

1 is a cross-sectional view of a hydraulic breaker equipped with an operating time recording apparatus according to a preferred embodiment of the present invention.

Figure 2 shows that the operating time recording apparatus is installed in the cylinder of the hydraulic breaker of Figure 1;

3 is a view showing the operation time recording device provided in the hydraulic breaker of FIG.

4 is a diagram illustrating a circuit system provided in the operation time recording apparatus of FIG. 3.

FIG. 5 is a diagram illustrating an attitude detector of the circuit system of FIG. 4. FIG.

6 to 9 are views showing a state of the posture detection unit that varies depending on the posture of the hydraulic breaker equipped with the operating time recording apparatus according to a preferred embodiment of the present invention.

10 is a view showing a hydraulic breaker equipped with a conventional operation state recording device.

The term 'power' referred to below may also be understood as 'power' or 'voltage' or 'current'. Thus, 'generating power' may be replaced with 'generating power' or 'generating voltage' or 'generating current', and 'applying power' 'applying power' or It may be replaced by 'apply voltage' or 'apply current'.

Hereinafter, with reference to the accompanying drawings will be described a hydraulic breaker having an operating time recording apparatus according to a preferred embodiment of the present invention.

1 is a cross-sectional view of a hydraulic breaker equipped with an operating time recording apparatus according to a preferred embodiment of the present invention, Figure 2 is a view showing that the operating time recording apparatus is installed in the cylinder of the hydraulic breaker of FIG. 3 is a diagram illustrating an operating time recording apparatus provided in the hydraulic breaker of FIG. 1, FIG. 4 is a diagram illustrating a circuit system provided in the operating time recording apparatus of FIG. 3, and FIG. 5 is a circuit of FIG. 4. 6 to 9 are diagrams showing the state of the posture detection unit that varies depending on the posture of the hydraulic breaker equipped with the operating time recording apparatus according to the preferred embodiment of the present invention.

1 and 2, the hydraulic breaker 10 having an operating time recording apparatus 700 according to a preferred embodiment of the present invention, the piston 300 which operates by lifting and lowering by hydraulic pressure, and the inside The upper chamber 410 is formed by the cylinder 400, the cylinder 400 is inserted into the space, the cylinder 400 and the piston 300, and exerts pressure on the upper hydraulic pressure surface 310 of the piston 300. And, formed by the cylinder 400 and the piston 300, the lower chamber 420 to apply pressure to the lower pressure receiving surface 320 of the piston 300, and hit by the piston 300 to hit the ground It is configured to include a chisel 500 and an operating time recording apparatus 700 provided in the hydraulic breaker 10 to record the time the piston 300 operates.

An inner space is formed in the cylinder 400, and the piston 300 is inserted into the inner space. Therefore, the inner space of the cylinder 400 may be defined as a space in which the piston 300 moves up and down.

The piston 300 is inserted into an inner space of the cylinder 400, and the upper pressure receiving surface 310 and the lower pressure receiving surface 320 are formed in the piston 300.

The chisel 500 is located under the piston 300. Therefore, when the piston 300 descends, the upper surface of the chisel 500 is hit, and the hit chisel 500 is moved downward to strike the ground, thereby crushing the ground.

The upper chamber 410 is a space formed between the upper hydraulic pressure surface 310 of the piston 300 and the cylinder 400, the lower chamber 420 is the lower hydraulic pressure surface 320 and the cylinder 400 of the piston 300. It is a space formed in between.

When the hydraulic oil flows into the upper chamber 410, the hydraulic oil exerts a pressure on the upper hydraulic pressure surface 310, which causes the piston 300 to descend.

When the hydraulic oil flows into the lower chamber 420, the hydraulic oil exerts a pressure on the lower pressure receiving surface 320, thereby raising the piston 300.

As above, the hydraulic breaker 10 is selectively supplied (inflow) to the upper chamber 410 or the lower chamber 420, the hydraulic pressure is supplied to (inlet), the upper hydraulic surface 310 or lower hydraulic pressure surface 320 of the piston 300 As the hydraulic oil pressurizes, the piston 300 repeatedly moves up and down. Therefore, the piston 300 strikes the chisel 500 and the chisel 500 strikes the ground, thereby breaking the rock or the like of the ground.

Hereinafter, the operation time recording apparatus 700 provided in the hydraulic breaker 10 and recording the time when the piston 300 operates will be described.

As shown in Figures 2 and 3, the operating time recording apparatus 700 functions to record the time the piston 300 of the hydraulic breaker 10 operates during operation,

Wrapping the main body 710 of the operation time recording apparatus 700, the buffer member 720 provided with a spring 721 therein, the urethane pad 730 surrounding the buffer member 720, and the main body 710 And a display unit 951 provided to display the time recorded by the hour meter 950 and a circuit system 900 provided inside the main body 710 of the operation time recording apparatus 700.

The operating time recording device 700 is preferably located above the cylinder 400 of the hydraulic breaker 10, that is, the top head 430.

In this case, by forming a groove (not shown) in the top head 430 and installing the operation time recording device 700 in the groove, the operation time recording device 700 can be stably fixed to the hydraulic breaker 10. have.

A circuit system 900 is provided inside the main body 710 of the operation time recording apparatus 700, and a shock absorbing member 720 surrounding the main body 710 is provided outside the main body 710.

The buffer member 720 may be made of polyethylene (PE) material, and a plurality of springs 721 may be provided in the space between the buffer members 720.

The plurality of springs 721 may provide an elastic force to the shock absorbing member 720 to increase the shock absorbing effect. In this case, by adjusting the number of the plurality of springs 721, the elastic modulus of the buffer member 720 can be adjusted.

The outside of the buffer member 720 may be provided with a urethane pad 730 surrounding the buffer member 720, the urethane pad 730, in addition to the buffer member 720, the operating time recording device 700, the main body 710 It cushions the shock transmitted to

The display unit 951 is provided on the surface of the main body 710 and functions to display the time recorded by the hour meter 950 which will be described later.

Therefore, the user can easily grasp the time recorded by the hour meter 950 through the display unit 951, that is, the time when the hydraulic breaker 10 is operated.

As described above, by installing the buffer member 720 and the urethane pad 730 in the main body 710 of the operation time recording apparatus 700, it is possible to achieve the buffering effect of the operation time recording apparatus 700.

In other words, the hydraulic breaker 10 is operated so that the piston 300 reciprocates up and down, i.e., the repetitive lifting movement and the hitting of the chisel 500 (the blood of the chisel 500 by the piston 300). When hitting) and hitting of the chisel 500 (hitting the ground through the chisel 500), a very large impact is generated in the hydraulic breaker (10).

When such a shock (or vibration) is repeatedly generated, a malfunction may occur in the circuit system 900 provided inside the main body 710 of the operation time recording apparatus 700.

Therefore, by installing a double buffer structure, that is, the buffer member 720 and the urethane pad 730 to surround the main body 710 of the operation time recording apparatus 700, the main body 710 from the above shock (or vibration). The circuit system 900 can be protected.

In addition, as described above, by forming a groove in the top head 430 of the cylinder 400 of the hydraulic breaker 10, by inserting the operation time recording apparatus 700 in the groove, the operation time recording apparatus 700 At the same time, the above shock protection can be more effectively achieved.

Hereinafter, the circuit system 900 provided in the main body 710 of the operation time recording apparatus 700 will be described.

As shown in FIG. 4, the circuit system 900 switches power to 'ON' or 'OFF' the operation of the circuit system 900, and generates power by vibration generated by the operation of the piston 300. The generator 920 to generate the posture, the posture detection unit 930 and the posture detection unit 930 which are operated when the hydraulic breaker 10 is in the operating position to apply the power generated by the generator 920 to the relay port 940. When the power is applied by, the relay port 940 for applying power to the hour meter 950, and is operated by the power generated from the generator 920, including an hour meter 950 for recording the time during operation It is composed.

The switch 910 is connected in series with the generator 920 and 'ON' or 'OFF' the operation of the circuit system 900 according to the operation. Therefore, when the user places the switch 910 in the 'ON' position, the power of the generator 920 is applied to the posture detection unit 930, the relay port 940, and the hour meter 950.

The generator 920 functions as a power supply source of the circuit system 900 and generates power by vibration generated by the operation of the piston 300.

In other words, the generator 920 generates electric power by vibration generated when the hydraulic breaker 10 is operated to raise and lower the piston 300.

Therefore, the generator 920 does not generate power when the hydraulic breaker 10 is not operated, and thus, when the hydraulic breaker 10 is not operated, the circuit system 900 of the operation time recording apparatus 700 is generated. ) Also does not work.

The vibration for the generator 920 to generate electric power is not only a vibration generated by the piston 300 moving up and down, but also a vibration generated when the piston 300 hits the chisel 500, and the chisel 500 supports the ground. Includes all vibrations that occur when hitting.

In addition, it is preferable that the generator 920 has a generated power vibration range so as to generate power even in the vibration range buffered by the above-mentioned buffer member 720 and the urethane pad 730.

In detail, as described above, in order to prevent damage to the operation time recording apparatus 700, the shock absorbing member 720 and the urethane pad 730 are installed in the main body 710. Thus, the generator ( The vibration may not be sufficiently transmitted to the 920 so that power may not be properly generated. Therefore, it is preferable to determine the generated power vibration range of the generator 920 to generate power even in the vibration range buffered by the buffer member 720 and the urethane pad 730.

For example, the vibration of the '100' is generated by the operation of the hydraulic breaker 10, the vibration and the operating time transmitted when the buffer member 720 and the urethane pad 730 is not provided in the operating time recording apparatus 700 Assume that the vibration at which the recording apparatus 700 is broken is '90', and the vibration transmitted when the buffer member 720 and the urethane pad 730 is provided at the operation time recording apparatus 700 is '70'.

In the above case, when the shock absorbing member 720 and the urethane pad 730 is not provided, high vibration is transmitted to the operation time recording apparatus 700, and thus there is a risk that the operation time recording apparatus 700 is broken, thereby preventing this. In order to provide a buffer member 720 and the urethane pad 730, it is possible to effectively prevent the risk of damage.

However, in this case, when the generated power vibration range of the generator 920 exceeds '70', that is, the generator 920 may generate power only when there is a vibration exceeding '70', the shock absorbing member 720 ) And the urethane pad 730, the generator 920 may not generate power.

Accordingly, by lowering the generated power vibration range of the generator 920 to '70' or less, the shock absorbing member 720 and the urethane pad 730 prevent the breakdown of the operation time recording apparatus 700 and at the same time, the generator 920. Can generate power simultaneously.

That is, by making the generated power vibration range of the generator 920 a little more sensitive, it is possible to simultaneously prevent breakage and power generation of the operation time recording apparatus 700.

In addition, in order to appropriately adjust the generated power vibration range of the generator 920, it is necessary to adjust the buffer range of the operating time recording apparatus 700 provided with the buffer member 720 and the urethane pad 730, To this end, the number of springs 721 of the buffer member 720 may be adjusted.

In other words, by increasing the number of the spring 721 of the buffer member 720 to increase the buffer range of the operating time recording device 700 to lower the vibration transmitted to the operating time recording device 700, or buffer member 720 By reducing the number of springs 721 of the operating time recording apparatus 700 by lowering the buffer range it is possible to increase the vibration transmitted to the operating time recording apparatus 700.

The posture detection unit 930 detects whether or not the hydraulic breaker 10 is in the operating position, and is operated when the hydraulic breaker 10 is in the operating position, thereby generating power generated by the generator 920 to the posture of the relay port 940. By applying to the detector side port 941, the power is finally applied to the hour meter 950, or when the hydraulic breaker 10 is not in the operating position, the relay port 940 and the hour meter are not operated. A function of cutting off power applied to 950 is performed.

Therefore, the posture detection unit 930 is connected in series with the posture detection unit side port 941 of the relay port 940, and when it is determined that the hydraulic breaker 10 is in an operating position, the posture detection unit 930 is shorted to apply power to the relay port 940. Thus, the power is finally applied to the hour meter 950, and when it is determined that the hydraulic breaker 10 is not in the operating position, the door is opened so as not to apply power to the posture detection side port 941 of the relay port 940. Finally, no power is applied to the hour meter 950.

In addition, as shown in FIG. 5, the posture detection unit 930 includes a body 931 fixed to the cylinder 400 of the hydraulic breaker 10, a light emitting unit 932 and a light receiving unit provided in the body 931. It is configured to include a light source blind plate 934 is rotatably connected to the body 931 by the rotation shaft 933, and rotates the eccentric portion in the direction of gravity.

The body 931 is provided in the main body 710 of the operation time recording apparatus 700, and a rotation shaft 933 is installed in the body 931.

In addition, the body 931 is installed to be fixed to the cylinder 400 of the hydraulic breaker (10).

In other words, as shown in Figure 2, when the operating time recording apparatus 700 is installed to be fixed to the top head 430 of the cylinder 400 of the hydraulic breaker 10, it is provided inside the main body 710 The body 931 is also fixed to the top head 430 of the cylinder 400 of the hydraulic breaker 10 is installed.

In this case, it is preferable that the lower surface of the body 931 is installed to coincide with the lower surface of the operation time recording apparatus 700, whereby, the lower surface of the body 931 is one of the cylinders 400 of the hydraulic breaker 10. It may be fixedly installed on the side (outer left side of the cylinder 400 in Figure 1).

The light emitting unit 932 and the light receiving unit are provided in the body 931, and determine whether the hydraulic breaker 10 is in an operating position according to whether the light receiving unit detects the light source irradiated from the light emitting unit 932.

In other words, when the light source irradiated by the light emitter 932 is not covered by the light blocking panel 934 and thus does not detect the light source by the light receiver, the posture detection unit 930 determines that the hydraulic breaker 10 is not in an operating position. For this reason, the posture detection unit 930 maintains an open state. Therefore, the power is not applied to the posture detection unit side port 941 of the relay port 940, and finally the hour meter 950 does not operate.

When the light source irradiated by the light emitting unit 932 is not covered by the light blocking panel 934 and detects the light source at the light receiving unit, the posture detection unit 930 determines that the hydraulic breaker 10 is in an operating position. The posture detection unit 930 is shorted. Accordingly, power is applied to the posture detecting unit side port 941 of the relay port 940, so that the hour meter 950 is finally operated.

The light blocking plate 934 is rotatably connected to the body 931 by a rotation shaft 933, and has an eccentric portion eccentric from the rotation shaft 933. Therefore, the eccentric portion can be rotated to face the gravity direction by the center of gravity of the eccentric portion.

In other words, no matter where the body 931 is located, the eccentric portion of the light source obstruction plate 934 is directed toward the gravity direction by the rotation of the rotation shaft 933.

The light shielding plate 934 is disposed between the light emitting unit 932 and the light receiving unit, and functions to prevent the light receiving unit from detecting the light source irradiated from the light emitting unit 932 according to the position of the body 931.

As described above, the posture detection unit 930 is fixed to the cylinder 400 of the hydraulic breaker 10, the body 931, as shown in Figures 6 to 9 to be described later, the posture of the hydraulic breaker 10 According to the light source blocking plate 934 can be seen whether the light source irradiated from the light emitting unit 932 is transmitted to the light receiving unit, and thus, the posture detection unit 930 easily detects whether the hydraulic breaker 10 is operating. I can do it.

The circuit system 900 of the operation time recording apparatus 700 may be provided with an auxiliary generator (not shown) connected to the posture detection unit 930 to apply power to the posture detection unit 930.

In this case, the auxiliary generator also, like the generator 920, is subjected to vibration generated by the operation of the hydraulic breaker 10, that is, the lifting and lowering motion of the piston 300 and / or the hit / hit of the chisel 500. Electric power can be generated by the vibration generated.

As described above, since the auxiliary generator is connected to the posture detection unit 930, the power consumed by the light emitting unit 932 and the light receiving unit of the posture detection unit 930 may be more stably supplied.

Such an auxiliary generator is preferably connected in series with the posture detection unit 930.

When the power is applied by the posture detector 930, the relay port 940 functions to apply power to the hour meter 950, and the posture detector side port 941 is connected to the posture detector 930 in series. , Including an hour meter side port 942 connected in series with the hour meter 950.

Therefore, when the posture detection unit 930 is operated to apply power to the posture detection unit side port 941, the hour meter side port 942 is shorted, whereby power is applied to the hour meter 950.

The hour meter 950 is operated with the power generated by the generator 920 and functions to record the time during operation.

As described above, when the posture detection unit 930 determines that the hydraulic breaker 10 is in the operating position and power is applied to the posture detection unit side port 941 of the relay port 940, the hour meter of the relay port 940 is applied. The side port 942 is short-circuited and power generated by the generator 920 is applied to the hour meter 950.

As described above, when power is applied to the hour meter 950, the hour meter 950 is operated, and records an operating time during operation, and displays the same on the display unit 951 described above.

In other words, the hour meter 950 operates the hydraulic breaker 10 to generate power by vibration generated by the lifting and lowering reciprocation of the piston 300, and the posture detection unit 930 operates the hydraulic breaker 10. By operating only when detecting the posture, it is possible to record the operating time of the hydraulic breaker (10).

6 to 9, the operation of the operation time recording apparatus 700 provided in the hydraulic breaker 10 according to the preferred embodiment of the present invention will be described.

FIG. 6 (a) is a view showing the hydraulic breaker 10 when the hydraulic breaker 10 equipped with the operation time recording apparatus 700 according to the preferred embodiment of the present invention is parallel to the horizontal plane, and FIG. b) and FIG. 6C are perspective views of the posture detection unit 930 and the side view of the posture detection unit 930 when the hydraulic breaker 10 is parallel to the horizontal plane.

FIG. 7 (a) is a view showing the hydraulic breaker 10 when the hydraulic breaker 10 equipped with the operation time recording apparatus 700 according to the preferred embodiment of the present invention is tilted 45 degrees from the horizontal plane. 7 (b) and 7 (c) are perspective views of the posture detection unit 930 and the side view of the posture detection unit 930 when the hydraulic breaker 10 is inclined at 45 ° from the horizontal plane.

FIG. 8 (a) is a view showing the hydraulic breaker 10 when the hydraulic breaker 10 equipped with the operation time recording apparatus 700 according to the preferred embodiment of the present invention is inclined 90 degrees from the horizontal plane. 8 (b) and 8 (c) are perspective views of the posture detection unit 930 and the side view of the posture detection unit 930 when the hydraulic breaker 10 is inclined at 90 ° from the horizontal plane.

FIG. 9 (a) is a view showing the hydraulic breaker 10 when the hydraulic breaker 10 equipped with the operation time recording apparatus 700 according to the preferred embodiment of the present invention is tilted 180 degrees from the horizontal plane. 9 (b) and 9 (c) are perspective views of the posture detection unit 930 and the side view of the posture detection unit 930 when the hydraulic breaker 10 is inclined 180 degrees from the horizontal plane.

First, the operation of the operating time recording apparatus 700 provided in the hydraulic breaker 10 in the state of FIGS. 6 (a) to 6 (c) will be described.

6 (a) to 6 (c), when the hydraulic breaker 10 is placed side by side with the horizontal plane, the bottom surface of the body 931 of the posture detection unit 930 is also placed side by side with the horizontal plane. .

In this case, as described above, since the eccentric portion of the light source obstruction plate 934 is rotated to face the gravity direction (the direction orthogonal to the horizontal plane), the light source obstruction plate 934 covers the light emitting portion 932 and the light receiving portion. Therefore, even if power is generated by the generator 920, the light source irradiated by the light emitter 932 by the light blocking member 934 may not be detected by the light receiver.

Accordingly, the posture detection unit 930 maintains an open state. As a result, power is not applied to the posture detection unit side port 941 of the relay port 940, and thus power is not finally applied to the hour meter 950. As a result, hour 950 does not work.

In other words, as shown in FIG. 6A, when the hydraulic breaker 10 is in parallel with the horizontal plane, the hour meter 950 does not operate even if power is generated by the generator 920, and thus, the operation is performed. The time recording device 700 itself is not working.

As described above, when the hydraulic breaker 10 is placed in parallel with the horizontal plane, the posture detection unit 930 determines that the hydraulic breaker 10 is not in an operating state as follows.

First, when crushing the ground through the hydraulic breaker 10, it is very rare to crush the ground in a position parallel to the horizontal plane as shown in Fig. 6 (a), so that the hydraulic breaker 10 is in a position parallel to the horizontal plane If it is not in operation.

In addition, when the hydraulic breaker 10 is transported, the hydraulic breaker 10 is transported while being placed in a position parallel to the horizontal plane, etc., and vibrations generated at this time (that is, generated by the truck for transporting the hydraulic breaker 10). Vibration), the operation time recording apparatus 700 is operated to prevent the hydraulic breaker 10 from being recorded as operating.

Hereinafter, the operation of the operation time recording apparatus 700 provided in the hydraulic breaker 10 in the state of FIGS. 7 (a) to 7 (c) will be described.

As shown in FIGS. 7A to 7C, when the hydraulic breaker 10 is inclined 45 degrees from the horizontal plane, the lower surface of the body 931 of the posture detection unit 930 is also inclined 45 degrees from the horizontal plane. do.

In this case, as described above, since the eccentric portion of the light source obstruction plate 934 is rotated to face the gravity direction (the direction orthogonal to the horizontal plane), the light source obstruction plate 934 does not cover the light emitting portion 932 and the light receiving portion. . Therefore, the posture detection unit 930 determines that the hydraulic breaker 10 is in an operating state.

As described above, when the posture detection unit 930 determines that the hydraulic breaker 10 is in the operating state, the posture detection unit 930 is short-circuited, and thus, power is supplied to the posture detection unit side port 941 of the relay port 940. After being applied, power is applied to the hour meter side port 942 of the relay port 940, and finally power is applied to the hour meter 950, whereby the hour meter 950 operates.

Therefore, the operating time recording apparatus 700 is operated to record the operating time of the hydraulic breaker 10.

In other words, as shown in FIG. 7A, when the hydraulic breaker 10 is inclined at 45 ° from the horizontal plane, when the generator 920 generates power due to vibration generated by the operation of the hydraulic breaker 10. , The operating time recording device 700 is operated to record the operating time of the hydraulic breaker 10.

The operation of the operating time recording apparatus 700 as described above is performed when the hydraulic breaker 10 is inclined 90 degrees from the horizontal plane as shown in FIGS. 8 (a) to 8 (c), and FIG. 9 (a). As shown in FIG. 9 (c), the same may be applied when the hydraulic breaker 10 is inclined 180 ° from the horizontal plane.

In other words, as shown in FIG. 8 (a), the hydraulic breaker 10 is tilted 90 degrees from the horizontal plane, or as shown in FIG. 9 (a), the hydraulic breaker 10 is tilted 180 degrees from the horizontal plane. In this case, when the vibration is generated by the operation of the hydraulic breaker 10 and the generator 920 generates power, the operation time recording apparatus 700 operates to record the operation time of the hydraulic breaker 10.

This is because when the ground is crushed by the hydraulic breaker 10, the ground is broken when the hydraulic breaker 10 of FIG. 7 (a) and FIG. 8 (a) are inclined at 45 degrees and 90 degrees from the horizontal plane. Because.

In addition, although rarely, as shown in FIG. 9A, the ground may be crushed by the hydraulic breaker 10 even when the hydraulic breaker 10 is tilted 180 degrees from the horizontal plane. Of course, in this case, it is used strictly for the purpose of crushing the upper rock when digging a tunnel or the like, not the ground.

The operation posture of the hydraulic breaker 10 determined (or detected) by the posture detection unit 930 described above is not limited to a position where the hydraulic breaker 10 is inclined at 45 °, 90 °, or 180 ° from the horizontal plane.

That is, by adjusting the eccentricity of the eccentric portion of the light source blocking plate 934 of the posture detection unit 930, it is possible to adjust the determination position of the posture detection unit 930 according to the position of the hydraulic breaker 10.

However, when the hydraulic breaker 10 is placed side by side with the horizontal plane, since the hydraulic breaker 10 does not operate, the hydraulic breaker 10 does not operate when the angle between the hydraulic breaker 10 and the horizontal plane is 0 °. It is desirable to see no.

Therefore, as a preferable example of the range of the operating posture of the hydraulic breaker 10, when the angle between the hydraulic breaker 10 and the horizontal plane is about 10 ° to 350 °, it is determined that the hydraulic breaker 10 is in the operating state. desirable.

In such a case, the light source obstruction plate 934 of the posture detection unit 930 has an angle of 10 ° to the left and right of the gravity direction. That is, assuming that the body 931 is positioned within the range of 10 ° to 350 °, assuming that the body rotates clockwise in the direction of gravity, the light source irradiated from the light emitter 932 may be detected by the light receiver. Through the posture detection unit 930, when the angle between the hydraulic breaker 10 and the horizontal plane is about 10 ° to 350 °, the hydraulic breaker 10 may be determined to be in an operating state.

As described above, the operating time recording apparatus 700 provided in the hydraulic breaker 10 is a vibration generated when the hydraulic breaker 10 operates, that is, the lifting motion of the piston 300 or the chisel 500. When the generator 920 generates electric power by vibration generated by the hit / hit and the posture detection unit 930 determines that the posture detection unit 930 is in an operating position according to the posture of the hydraulic breaker 10, the generator 920 operates. The operating time will be recorded.

In other words, the operating time of the hydraulic breaker 10 may be recorded only when the power generation condition of the generator 920 and the operating posture condition of the posture detection unit 930 are satisfied.

As described above, since the operating time recording apparatus 700 measures the operating time of the hydraulic breaker 10 only when two conditions are satisfied, there is an advantage in that the operating time of the hydraulic breaker 10 can be accurately measured.

In addition, as described above, the vibration transmitted to the operation time recording apparatus 700 by the buffer member 720 and the urethane pad 730 provided in the operation time recording apparatus 700, that is, of the hydraulic breaker 10 It is possible to prevent the operation time recording apparatus 700 from being damaged by the vibration generated by the operation or the circuit system 900 from malfunctioning.

In addition, since the circuit system 900 provided in the operation time recording apparatus 700 has a very simple configuration, reduction in manufacturing cost can be achieved.

In addition, since the circuit system 900 provided in the operation time recording apparatus 700 has no configuration connected with other components of the hydraulic breaker 10, the operation time recording apparatus 700 independently of the hydraulic breaker 10 The operating time can be recorded. Therefore, simply installing the operation time recording device 700 in the cylinder 400 of the hydraulic breaker 10 can easily record the operation time of the hydraulic breaker 10, so the installation is very easy, High compatibility is guaranteed.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications of the present invention without departing from the spirit and scope of the invention described in the claims below. Or it may be modified.

(Explanation of the sign)

10: hydraulic breaker

300: piston 310: upper hydraulic pressure surface

320: lower hydraulic pressure surface 400: cylinder

410: upper chamber 420: lower chamber

430: Top Head 500: Chisel

700: operating time recording device 710: main body

720: buffer member 721: spring

730: urethane pad

900: circuit system 910: switch

920: generator 930: posture detection unit

931: body 932: light emitting unit

933: rotation axis 934: light shielding plate

940: relay port 941: posture detection side port

942: hour meter side port 950: hour meter

951: display unit

Claims

In the operating time recording apparatus is provided in a hydraulic breaker having a piston for operating by lifting and lowering by hydraulic pressure, and a chisel hit by the piston to strike the ground,

A generator for generating electric power by vibration generated by the operation of the piston;

An hour meter operating on electric power generated by the generator and recording time during operation; And

And a posture detection unit which is operated when the hydraulic breaker is in an operating position to apply power generated by the generator to the hour meter.
The method of claim 1,

A buffer member surrounding a body of the operation time recording apparatus and having a spring therein; And

And a urethane pad surrounding the buffer member.
The method of claim 1,

The posture detection unit,

A body fixed to the cylinder of the hydraulic breaker;

A light emitting part and a light receiving part provided in the body; And

And a light source blocking plate rotatably connected to the body by a rotating shaft, the eccentric portion rotating to face the direction of gravity.

The light shielding plate is disposed between the light emitting unit and the light receiving unit to prevent the light receiving unit from detecting the light source irradiated from the light emitting unit according to the posture of the hydraulic breaker.

And the posture detecting unit operates when the light source irradiated from the light emitting unit is detected by the light receiving unit.
The method of claim 1,

And an auxiliary generator generating power by vibration generated by the operation of the piston and connected to the posture detection unit to apply power.
In a hydraulic breaker having a piston to operate by lifting and lowering by hydraulic pressure, and a chisel hit by the piston to strike the ground,

Included in the hydraulic breaker operating time recording device for recording the time the piston is operating; including,

The operation time recording device,

A generator for generating electric power by vibration generated by the operation of the piston;

An hour meter operating on electric power generated by the generator and recording time during operation; And

And a posture detection unit which is operated when the hydraulic breaker is in an operating position to apply power generated by the generator to the hour meter.