KR102136603B1 - Lightweight boom system without cableveyor - Google Patents

Abstract

The present invention relates to a lightweight boom system without a cable carrier, which allows each boom to be sequentially expanded and contracted through a single hydraulic cylinder, and also stably supplies wires and hydraulic hoses to a worktable coupled to the fifth boom. It relates to a lightweight boom system that does not require a cable reel or hydraulic hose reel, and also eliminates cable bays to protect the wires and hydraulic hoses, thereby reducing the size and size of each boom.

Description

LIGHTWEIGHT BOOM SYSTEM WITHOUT CABLEVEYOR}

The present invention relates to a lightweight boom system without a cable carrier, and more specifically, to allow each stage boom to be sequentially expanded and contracted through a single hydraulic cylinder, and also to provide electric wires and hydraulic hoses to a work table coupled to the fifth stage boom. It relates to a lightweight boom system that does not require a cable reel to stably supply, but does not require a wire reel or hydraulic hose reel, and also eliminates a cable carrier to protect the wire and hydraulic hose to reduce the size and size of each boom.

In general, fire trucks, cranes, and aerial work vehicles are used depending on the purpose by installing a work bench at the tip of the newly built boom system.

In general, a boom system consists of a plurality of booms made of antennas foldable, and is used for fire suppression, construction sites, and transportation of goods depending on the purpose of the person riding on the workbench.

In addition, the boom system is usually made of a multi-stage telescopic boom with various sizes of booms formed in the shape of a square tube, and the expansion and contraction of the multi-stage telescopic boom includes hydraulic cylinders, wire ropes, chains, etc. It consists of a combination.

In particular, in the case of a multi-stage boom system composed of at least four or more stages, a plurality of hydraulic cylinders may be used.

However, when a plurality of hydraulic cylinders are used, the size of the boom system must be made large, and as the size of the boom system increases, there is a problem in that weight increase and stability of the vehicle are not secured.

In addition, a hydraulic hose is required for the workbench installed at the tip of the boom bar, because it is always capable of maintaining a horizontal state regardless of the angle of the boom bar and the wire bundle for supplying electricity.

Therefore, a wire reel and a hydraulic hose reel are usually mounted on the outside of the boom, and such a wire reel and a hydraulic hose reel are also a cause of the weight increase of the boom.

Accordingly, the electric wire reel and the hydraulic hose reel were removed and the cable and the wire were used to place the electric wire and the hydraulic hose inside the boom. Has been registered.

However, the cited invention causes the problem that the size of the boom is increased and the weight of the boom is also increased by embedding the cable bay inside the boom.

Republic of Korea Registration Utility No. 0301767

The present invention has been devised in view of the above problems, and the first object of the present invention is to ensure that the electric wires and hydraulic hoses are disposed close to the inner ceiling of each boom, as well as a hydraulic cylinder fixed inside the second stage boom. It is to provide a lightweight boom system without a cable bayer to minimize the size and size of each boom by smoothly supplying wires and hydraulic hoses without using cable bays while avoiding interference.

The second object of the present invention, the electric wire and the hydraulic hose are divided into three parts through two directional change fixing blocks to secure the supporting force and the binding force, while moving through the guide rollers of the two directional change parts, the three electric wires and the hydraulic pressure The hose is arranged in a zigzag form without a cable bayer, so it can be installed in very narrow places. The three wires and hydraulic hoses each have a tension adjusting spring, two guide pipes, two first guide chambers, and one second It is to provide a lightweight boom system that can be guided in a straight direction without sagging through a guide chamber to avoid a short circuit.

According to a feature for achieving the object as described above, the first invention includes a first stage boom on which one side is rotatably coupled to the vehicle, a second stage boom inserted into the first stage boom, and a second stage boom inserted into the first stage boom. It relates to a lightweight boom system without a cable carrier consisting of a third stage boom, a fourth stage boom inserted into the third stage boom, and a fifth stage boom inserted into the fourth stage boom and fixed to a workbench. In order to protect the wires and hydraulic hoses that are exposed to the outside by being connected, guide pipes coupled to the outside of the first stage boom and the third stage boom, and wires and hydraulic hoses drawn to the other side through the respective guide pipes are provided with the first stage boom. Change the direction in one direction so as to induce entry into the interior of the three-speed boom, and at the same time, change the direction change fixing block to fix the changed part and the wire and hydraulic hose connected through the direction change fixing block to guide rollers. Stable supply of wires and hydraulic hoses arranged in a zigzag form to the workbench through a direction changer for re-switching in one direction and entering into the interior of the second and fourth booms, and each of the direction change fixed blocks and direction changers. Cable supply unit made of a fixed to be fixed to the other side of the fifth boom to do; And

The second stage boom is fixed to one side of the inside of the second stage boom so that the first and second booms expand and contract to the inside and outside of the first stage boom, and a hydraulic cylinder fixed to one side of the first stage boom and a third according to the operation of the hydraulic cylinder The first and second booms are connected to the external chain fasteners coupled to the other ends of the first and second booms and the third and second booms. A boom expansion and contraction unit consisting of a plurality of movable chains each connected to an inner chain fixing fixed to the outer side of the third and fourth booms of the third and fourth booms by changing the direction through a sprocket coupled to the other side of the sprocket; Including, but

The direction change fixing block of the cable supply unit is fixed to the inner ceiling of one side of the first and third stage booms, inductively connects electric wires and hydraulic hoses between the "gaps" of the second and fourth stage booms, and guide rollers of the direction changer Is partially exposed to the upper part of one side of the 2nd boom and the 4th boom, so that the electric wire and hydraulic hose addressed between the clearance "gap" of the 2nd boom and the 4th boom are placed close to the inner ceiling of each boom, as well as a hydraulic cylinder It is configured to minimize the size and size of each boom by smoothly supplying wires and hydraulic hoses to the work table without the use of cable bayers while avoiding the interference of the cable. The first guide chamber to be guided, and the second guide chamber is further coupled to the inside of the fifth stage boom by linearly guiding the wires and hydraulic hoses to the fixture, and the third, fourth and fifth stage booms are located at the bottom of the hydraulic cylinder. It characterized in that each of the supporting rollers that are rolled.

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The third invention, in the first invention, each guide roller is coupled to the long groove on the bracket so that the tension is maintained, and the direction changing part is characterized in that the tension adjusting spring is provided so that the guide roller is elastically installed.

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According to the lightweight boom system without the cable bayer of the present invention, the wires and the hydraulic hoses, which are divided into three, are spoken to each other through two direction-changing fixing blocks, so that the bearing force and the binding force are secured.

In addition, the three wires and the hydraulic hose can be installed in a very narrow place to move in a zigzag form without a cable bayer through a guide roller formed in two direction changing parts.

In addition, the three wires and hydraulic hoses are guided in a straight direction without sagging through the tension adjusting spring, two guide pipes, two first guide chambers, and one second guide chamber to avoid disconnection short circuit. .

In addition, 3 wires and hydraulic hoses are guide pipes fixed to the inside and outside of the top of each boom, guide chambers, and direction changing fixing blocks and direction changing parts to avoid interference of hydraulic cylinders and without the use of cable bearings. It has the effect of minimizing the size and size of each boom by smoothly supplying it to the workbench.

In addition, there is an effect that can be easily applied to a multi-stage boom more than the fifth stage boom.

1 is a block diagram showing the elongation of the lightweight boom system without a cable carrier according to the present invention,
Figure 2 is a configuration diagram showing a contracted state of a lightweight boom system without a cable bayer according to the present invention.

The following objects, other objects, features and advantages of the present invention will be readily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

Rather, the embodiments introduced herein are provided to ensure that the disclosed contents are thorough and complete and that the spirit of the present invention is sufficiently conveyed to those skilled in the art.

The embodiments described and illustrated herein also include its complementary embodiments.

In the present specification, the singular form also includes the plural form unless otherwise specified in the phrase. As used herein,'comprise' and/or'comprising' does not exclude the presence or addition of one or more other components.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the following specific embodiments, various specific contents have been prepared to more specifically describe and understand the invention. However, a reader who has knowledge in this field to understand the present invention can recognize that it can be used without a variety of specific contents. It should be noted that, in some cases, parts that are commonly known in describing the invention and that are not significantly related to the invention are not described in order to avoid confusion in describing the invention.

1 is a configuration diagram showing an extended state of a lightweight boom system without a cable bay according to the present invention, and FIG. 2 is a configuration diagram showing a contracted state of a lightweight boom system without a cable bay according to the present invention.

As shown in Figures 1 and 2, the present invention is a first stage boom is coupled to the vehicle to be rotated up and down on one side, a second stage boom inserted into the first stage boom, and a third stage boom inserted into the second stage boom And, it relates to a lightweight boom system without a cable carrier coupled to at least four or more booms consisting of a fourth stage boom that is inserted into the third stage boom and a fifth stage boom that is inserted into the fourth stage boom and the workbench is fixed. .

In addition, the present invention allows each boom to be sequentially expanded and contracted through a single hydraulic cylinder, and also stably supplies wires and hydraulic hoses to a worktable coupled to the fifth stage boom, but does not require wire reels or hydraulic hose reels. And it relates to a lightweight boom system without a cable carrier to reduce the size and size of each boom by removing the cable bay to protect the hydraulic hose.

The lightweight boom system without a cable bay of the present invention is largely composed of two parts, which are composed of a cable supply unit and a boom expansion and contraction unit.

First, the boom expansion and contraction unit is configured to sequentially expand and contract a plurality of booms 320, 330, 340, and 350 through a single hydraulic cylinder 200.

The boom expansion and contraction unit is composed of a single hydraulic cylinder 200 and a plurality of movable chains 210 interlocked by the hydraulic cylinder 200.

The hydraulic cylinder 200 is fixed to one side of the inside of the second stage boom 320 so that the second stage boom 320 is stretched from the first stage boom 310, and the withdrawal rod is one side of the interior of the first stage boom 310 Is fixed on. At this time, the other side of the hydraulic cylinder 200 is not restrained, but the third, fourth, and fifth stage booms 330, 340, and 350 have fixed support rollers R, which are rolled under the hydraulic cylinder 200, respectively, and each stage boom 310, 320, 330, 340, 350 ) Is provided with a structure to reduce the cross-sectional size and weight.

In addition, the movable chain 210 has a first stage boom 310 and a second stage boom 320, so that the second, third, fourth, and fifth stage booms 320, 330, 340, and 350 sequentially expand and contract according to the operation of the hydraulic cylinder 200. And an external chain fixing unit 220 coupled to the outside of the other side of the third stage boom 330, respectively.

And the other end of the movable chain 210 is the second stage boom 320, the third stage boom 330 and the fourth stage boom 340 by changing the direction through the sprocket 230 to the third stage boom 330 And the fourth end boom 340 and the fifth end of the boom 350 are respectively connected to the inner chain fixing part 240 fixed to the outer side of the insertion end.

Accordingly, the movable chain 210 that enters the inside of each boom is also the “gap (G)” of the second boom 320 and the third boom 330, and the third boom 330 and the fourth boom 340 ) Between the "gap (G)" and the fourth stage boom 340 and the "gap (G)" of the fourth stage boom 340 to maximize the space efficiency, in addition to the cross-sectional size and weight of each boom (310,320,330,340,350) A structure that can be reduced is provided.

The operation of the boom expansion and contraction unit in the state of FIG. 1 is, when the hydraulic cylinder 200 is first operated, the hydraulic cylinder 200 along the rod 201 fixed to the first stage boom 310 is inside the first stage boom 310. Is moved to. Then, one side of the hydraulic cylinder 200 is bound to the second stage boom 320, and the second stage boom 320 and also the hydraulic cylinder 200 are moved to the inside of the first stage boom 310, and at the same time Each movable chain 210 is sequentially interlocked to move the third, fourth and fifth stage booms 330, 340 and 350 to the inside of the first stage boom 310.

On the other hand, the cable supply unit functions to minimize the size and size of each boom by smoothly supplying electric wires and hydraulic hoses without using a cable bay.

The cable supply unit is largely composed of two parts, which are composed of a direction changing fixing block 120, a direction changing unit 130, and a holder 140.

The guide pipe 110 is coupled to the outside of the first stage boom 310 and the third stage boom 330 to protect the electric wires and hydraulic hoses exposed to the outside of the cable supply unit.

The direction change fixing block 120 is fixed to the inner ceiling of one side of the first end boom 310 and the third end boom 330 to provide wires and hydraulic hoses 100 drawn out to the other side through each of the guide pipes 110. By inducing entry into the interior of the first stage boom 310 and the third stage boom 330, it functions as a so-called connection connector for connecting the electric wire and the hydraulic hose 100.

In addition, the direction change fixing block 120 may be configured as a block having a pipeline formed therein, but this is not desirable because of the risk of disconnection of electric wires and hydraulic hoses and large space required to change direction.

As the upper portion of the direction changing fixing block 120, the wires and the hydraulic hose 100 drawn out through the respective guide pipes 110 are connected, and on one side, the first stage boom 310 and the second stage boom 320 ) Between the "gap (G)", the third stage boom 330 and the "gap (G)" of the fourth stage boom 340 and the hydraulic hose 100 is connected.

Accordingly, the wires and hydraulic hoses 100 drawn through the guide pipes 110 are fixed through the direction change fixing block 120, and the first stage boom 310 and the third stage boom 330 are fixed. A structure is provided that can enter by changing the direction to the inside.

On the other hand, the direction changing unit 130 converts the electric wire and the hydraulic hose 100 connected through the direction changing fixing block 120 to the other side through the guide roller 131 to the second stage boom 320 and the fourth It serves to enter the interior of the short boom (340).

The guide roller 131 of the direction changing part 130 is partially exposed to the upper side of one side of the second stage boom 320 and the fourth stage boom 340, so that the second stage boom 320 and the fourth stage boom 340 Gap (G)" to be placed in close proximity to the inner ceiling of each boom and the hydraulic hose 100, as well as, while avoiding the interference of the hydraulic cylinder 200 fixed to the interior of the second stage boom 320 It is configured to minimize the size and scale of each boom by smoothly supplying wires and hydraulic hoses 100 to the work table 360 without the use of cable bayers.

In addition, each guide roller 131 is coupled to the tension groove 132a on the bracket 132 so that the tension is maintained, and the direction changing part 130 is a tension adjusting spring 133 so that the guide roller 131 is elastically installed. It is provided is configured to prevent sagging of the electric wire and the hydraulic hose 100.

In addition, the fifth stage boom to stably supply the electric wire and hydraulic hose 100 arranged in a zigzag form through the direction changing fixing block 120 and the direction changing unit 130 to the work table 360. It is fixed inside the other side of 350.

At this time, the first and second guide chambers 150 for linearly guiding wires and hydraulic hoses on one side of the second and third stage booms 320 and 330, and the wires and hydraulic pressure up to the fixture 140 inside the fifth stage boom 350. The second guide chamber 160 for guiding the hose 100 in a straight line is further coupled, so that the wire and the hydraulic hose 100 arranged in a zigzag form provide a structure that can be more stably moved without a short circuit.

The wire and hydraulic hoses of the lightweight boom system without the cable bayer of the present invention are separated into three parts through two directional change fixing blocks to secure support and binding force.

In addition, three wires and hydraulic hoses are arranged in a zigzag form without a cable bayer while moving through the guide rollers of the two direction changing parts, so that they can be installed in very narrow places.

And three wires and hydraulic hoses are guided in a straight line without sagging through the tension adjusting spring, two guide pipes, two first guide chambers and one second guide chamber to avoid disconnection short circuit.

In addition, 3 wires and hydraulic hoses are guide pipes fixed to the inside and outside of the top of each boom, guide chambers, and direction changing fixing blocks and direction changing parts to avoid interference of hydraulic cylinders and without the use of cable bearings. It is possible to minimize the size and size of each boom by smoothly supplying it to the workbench.

The lightweight boom system without a cable bayer of the present invention can be configured by differently varying the number of wires and hydraulic hoses, the number of direction changing parts, and the number of direction changing fixing blocks according to the number of booms.

The configurations shown in the embodiments and drawings described in this specification are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, and various equivalents that can replace them at the time of this application It should be understood that there may be and variations.

100: electric wire and hydraulic hose
110: Guide piping 120: Direction change fixing block
130: direction changing unit 131: guide roller
132: bracket 132a: long groove
133: tension adjustment spring 140: fixed
150: first guide chamber 160: second guide chamber
200: hydraulic cylinder 201: hydraulic cylinder rod
210: movable chain 220: external chain fixing
230: Sprocket 240: Internal chain fixing
310: first stage boom 320: second stage boom 330: third stage boom
340: 4th boom 350: 5th boom 360: Worktable
G: Gap R: Support roller

Claims (4)

The first stage boom 310 is coupled to the vehicle to be rotated up and down on one side, the second stage boom 320 inserted into the first stage boom 310, and the third stage boom 320 inserted into the second stage boom 320 ), the fourth stage boom 340 inserted into the third stage boom 330, and the fifth stage boom 350 inserted into the fourth stage boom 340 and fixed to the work table 360 at the front end of the boom system In,
A guide pipe 110 coupled to the outside of the first stage boom 310 and the third stage boom 330 to protect the wires and the hydraulic hose 100 exposed to the outside connected to the vehicle,
The electric wires and hydraulic hoses 100 drawn to the other side through each of the guide pipes 110 are switched in one direction so as to induce entry into the interiors of the first stage boom 310 and the third stage boom 330, At the same time, the direction changing fixing block 120 to fix the direction-changed portion,
The wires and hydraulic hoses 100 connected through the direction change fixing block 120 are re-switched in one direction through a guide roller 131 to enter the inside of the second stage boom 320 and the fourth stage boom 340. Direction change unit 130,
The other side of the fifth stage boom 350 in order to stably supply the wires and the hydraulic hoses 100 arranged in a zigzag form to the work table 360 through the direction changing fixing block 120 and the direction changing unit 130 A cable supply unit composed of a fixing unit 140 fixed therein; And
The second stage boom 320 is fixed to the inner side of the second stage boom 320 so as to expand and contract to the inside and outside of the first stage boom 310, the withdrawal rod 201 is on the inner side of the first stage boom 310 Fixed hydraulic cylinder 200,
According to the operation of the hydraulic cylinder 200, the third, fourth and fifth stage booms 330, 340, and 350 are sequentially extended to the other side of the first stage boom 310, the second stage boom 320, and the third stage boom 330. Each connected to the combined external chain fixing part 220, the other end is directed through the sprocket 230 coupled to the other side of the second stage boom 320, the third stage boom 330, and the fourth stage boom 340. A boom composed of a plurality of movable chains 210 each connected to an inner chain fixing part 240 fixed to the outer side of the third stage boom 330, the fourth stage boom 340, and the fifth stage boom 350 Expansion unit; including, but,
The direction change fixing block 120 of the cable supply unit is fixed to the inner ceiling of one side of the first end boom 310 and the third end boom 330, and the “gap (G) of the second end boom 320 and the fourth end boom 340 is fixed. )" inductively connect the wires and hydraulic hoses,
The guide roller 131 of the direction changing part 130 is partially exposed to the upper side of one side of the second stage boom 320 and the fourth stage boom 340, and thus the clearance between the second stage boom 320 and the fourth stage boom 340" Gap (G)" as well as to ensure that the wire and hydraulic hose 100 are placed close to the inner ceiling of each boom, while avoiding the interference of the hydraulic cylinder 200, without the use of cable carriers wire and hydraulic hose 100 ) Is smoothly supplied to the work table 360 to be configured to minimize the size and scale of each stage boom (310,320,330,340,350),
The first and second guide chambers 150 for linearly guiding the electric wires and the hydraulic hose 100 on one side of the second and third stage booms 320 and 330, and the wires up to the fixture 140 inside the fifth stage boom 350 and The second guide chamber 160 is further coupled by linearly guiding the hydraulic hose 100,
The third, fourth, and fifth stage booms (330, 340, 350) is a lightweight boom system without a cable carrier, characterized in that the support rollers (R) that are rolled under the hydraulic cylinder 200, respectively.
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Each guide roller 131 is coupled to the long groove 132a on the bracket 132 so that the tension is maintained,
The direction changing part 130 is a lightweight boom system without a cable bearing, characterized in that a tension adjusting spring (133) is provided so that the guide roller (131) is resiliently installed.
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