KR20220076828A - Work vehicle having balancing function - Google Patents

Abstract

The present invention relates to a work vehicle having a balance maintaining function, comprising: a vehicle body driven by a crawler; a first base that is hinged to the body and provided to rotate in one direction while having a first electric cylinder for rotating it; a second base provided to rotate in a direction crossing the first base hinged to the first base and provided with a second electric cylinder for rotating the second base; a sensing unit provided on the second base to sense the balance of the second base; It provides a work vehicle comprising a; a work machine that is fixed to the second base and is provided to be horizontally maintained by the second base.

Description

Work vehicle having balancing function

The present invention relates to a work vehicle having a balance maintaining function, and more particularly, to a work vehicle having a balance maintaining function capable of automatically maintaining the balance of a work machine mounted on the work vehicle.

In general, a work vehicle is a work vehicle in which various work machines are installed in a vehicle capable of moving places, and various work is possible while moving according to the type of work machine installed in the vehicle.

Vehicles of various concepts are currently used as such a work vehicle, and among them, there is a work vehicle developed to enable work at height.

Such high-place work vehicles move workers to high places so that they can work at high places in industrial sites such as factories, roads, and construction, as well as agricultural sites such as orchards, fields, and plastic houses.

On the other hand, in the prior art, Republic of Korea Patent Registration No. 10-1046439 (hereinafter referred to as 'prior art document 1'), an example of a work vehicle, an agricultural aerial work vehicle has been proposed and disclosed.

In the conventional high-place work vehicle disclosed in Prior Art Document 1, a work table is installed at the rear of the vehicle so that the operator can ride it, and front outriggers for expanding the lower support area of the vehicle are provided at both ends of the front of the vehicle. is provided, and rear outriggers for expanding the support area of the vehicle are provided at both ends of the rear of the vehicle.

In addition, a leveling means for adjusting the level of the vehicle according to the inclination or curvature of the ground is further provided inside the front/rear outer rigger.

Therefore, when the conventional high-altitude work vehicle is used in inclined agricultural land (hereinafter referred to as 'ground'), the vehicle body is maintained horizontally by adjusting the withdrawal and rotation structures of the front outrigger and rear outrigger. Then, the worker is working at height by raising the workbench on which he is boarded.

However, in using such a conventional high-place work vehicle on an inclined ground, whenever the operator wants to move the work table on the inclined ground, four front/rear outriggers are operated through the driver to move the vehicle, and then the vehicle body Since the workbench has to be raised after maintaining the level of the workbench, the workability using the aerial work vehicle is reduced, and the front/rear outriggers are drawn out and the movement becomes impossible while the level is maintained, so it takes a lot of time to move and install the workbench. There is a downside to this.

Republic of Korea Patent No. 10-1046439

Accordingly, the present invention has been devised to solve the problems of the prior art as described above, and a work vehicle having a balance maintaining function so that various work machines are mounted on the work vehicle and the balance of the work machines can be automatically maintained in the work vehicle. Its purpose is to provide

According to an aspect of the present invention for achieving the above object, a work vehicle having a balance maintaining function is a work vehicle comprising a vehicle body driven by a crawler and a balance maintaining unit configured in the vehicle body body, wherein the balance maintaining unit is fixed to the vehicle body body a body provided; a first base that is hinged to the body and provided to rotate in one direction while having a first electric cylinder for rotating it; a second base provided to rotate in a direction crossing the first base hinged to the first base and provided with a second electric cylinder for rotating the second base; a sensing unit provided on the second base to sense the balance of the second base; It may include; a work machine that is fixed to the second base and is provided to be horizontally maintained by the second base.

In addition, the first base is hinged on one side of the main body to be rotated in the front-rear direction, while a first hinge frame having a hinge bracket formed on one side thereof; a first connecting frame provided to cross the first hinge frame and having a hinge bracket formed on one side thereof; and a first electric cylinder provided between the hinge bracket of the first connection frame and the body to expand and contract the first hinge frame and the first connection frame to rotate the first hinge frame and the first connection frame in the front and rear directions in the body.

In addition, the second base is provided side by side with the first connection frame of the first base, and one side thereof is hinged to the hinge bracket formed on the first hinge frame of the first base to rotate in the left and right direction, and the upper surface of the working machine a second hinge frame that is coupled to; a second connecting frame provided to cross the second hinge frame and having a hinge bracket formed on one side thereof; and a second electric cylinder provided between the hinge bracket of the second connection frame and the first base to rotate the second hinge frame and the second connection frame in the left and right directions on the first base.

In addition, the first hinge frame of the first base is formed with a mounting bracket that is bent downward and protrudes, and a second electric cylinder is inserted and received in the mounting bracket and is hinge-coupled while being accommodated, so that the second electric cylinder is formed together with the second base. 1 It may be provided to be rotated by the base.

According to the work vehicle having the balance maintaining function of the present invention, various work machines may be mounted on the balance maintaining unit of the work vehicle, and the work machine may be configured to maintain its own balance regardless of the work vehicle through the balance maintaining unit. As a result, the movement and workability of the work vehicle are excellent, and safety accidents such as a fall of the worker can be prevented in advance.

1 is a block diagram of a work vehicle according to the present invention.
2 is an exploded view of a balance maintaining unit configured in a working vehicle according to the present invention.
3 is a configuration diagram of a first base configured in a balance maintaining unit according to the present invention.
4 is a block diagram of a second base configured in the balance maintaining unit according to the present invention.
5 is a view showing the balance maintaining unit of the working vehicle operated left and right according to the present invention.
6 is a view showing the operation of the balance maintaining unit of the working vehicle back and forth according to the present invention.
7 is an exemplary view of a work machine mounted on a work vehicle according to the present invention.

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

The terms used in the present invention are terms defined in consideration of the functions in the present invention, which may vary depending on the intention or custom of the user or operator, so the definitions of these terms correspond to the technical matters of the present invention and should be interpreted as a concept.

In addition, the embodiments of the present invention do not limit the scope of the present invention, but are merely exemplary matters of the components presented in the claims of the present invention, and are included in the technical spirit throughout the specification of the present invention and the scope of the claims. It is an embodiment including a substitutable component as an equivalent in the component.

In addition, optional terms in the examples below are used to distinguish one component from other components, and the components are not limited by the terms.

Accordingly, in describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the gist of the present invention will be omitted.

1 to 7 are views showing the configuration and operation of a work vehicle according to the present invention.

As shown in FIG. 1 , the work vehicle 100 according to the present invention includes a vehicle body 110 provided with a plurality of frames and a crawler 120 provided to rotate at both lower portions of the vehicle body 110 , respectively. include

The vehicle body 110 is provided with a power source and a power transmission means (not shown) for transmitting the power generated from the power source to the crawler 120, and the crawler 120 may be replaced with wheels that roll on the ground, respectively. .

In addition, the balance maintaining unit 200 for maintaining the balance of the working machine is provided on the upper surface of the vehicle body 110, and the balance maintaining unit 200 has various working machines capable of performing different operations depending on the purpose so that it can be replaced. installed and provided.

In addition, a mounting frame 130 for mounting a separate work tool may be further provided on the upper surface of the vehicle body 110 , as long as the mounting frame 130 is spaced apart from each other before and after the upper surface of the vehicle body 110 . They may be provided in pairs.

The mounting frame 130 includes a support part 131 formed of a pair of vertical frames protruding upward from the upper surface of the vehicle body 110 , and a support part 131 protruding upwardly to form a closed cross-section. and a mounting portion 132 formed thereon.

Accordingly, various work tools, such as a shovel or a support for measuring equipment, are mounted on the mounting portion 132 of both mounting frames 130 and stored in a fixed state.

As shown in FIG. 2 , the balance maintaining unit 200 is hinged to the main body 210 fixedly provided on the upper surface of the vehicle body 110 and the upper surface of the main body 210 to rotate in the front-rear direction. A first base 300 having a first electric cylinder 330 to rotate is provided, and a second electric cylinder 430 that rotates while hinged to the upper surface of the first base 300 to rotate in the left and right directions is provided. a second base 400 to be used, a sensing unit 500 provided on the second base 400 to sense the balance of the second base 400, and a second base fixed to the second base 400 ( 400), including a working machine that is provided to be horizontally maintained.

The body 210 of the balance maintaining unit 200 is provided to have a predetermined height on the upper surface of the vehicle body 110 , and a control means such as a controller may be provided inside the body 210 .

A first hinge bracket 211 to which the first base 300 is hinged is provided on the upper surface of the main body 210, and a second hinge bracket 212 to which the first electric cylinder 330 is hinged on the front or rear surface. ) is provided.

And, as shown in FIGS. 2 and 3, one side of the first base 300 is hinged to the first hinge bracket 211 of the upper surface of the main body 210 in the front-rear direction from the upper surface of the main body 210. A first hinge frame 310 provided to be rotated, a first connection frame 320 that is fixedly provided to cross the first hinge frame 310, and the first connection frame 320 and the main body 210 are attached thereto. It includes a first electric cylinder 330 that rotates the first hinge frame 310 and the first connection frame 320 in the front-rear direction in the main body 210 while both ends are stretched and contracted in a hinged state, respectively.

The first hinge frame 310 is provided with a plurality of frames, and a hinge 311 rotatably coupled to the first hinge bracket 211 of the main body 210 is provided on one side of the plurality of first hinge frames 310 . provided

Among the plurality of first hinge frames 310 , a hinge bracket 312 is formed on an outer surface of one hinge frame, and a mounting bracket 313 is formed on an outer surface of the other hinge frame.

The hinge bracket 312 is bent upward from one side of the first hinge frame 310 to the second base 400 to be described later is hinged, and the mounting bracket 313 has an opening in its front surface. The box shape is formed by bending downward of the main body 210 from the other side of the first hinge frame 310, and a second electric cylinder 430 to be described later is inserted and accommodated therein.

The first connection frame 320 is provided with a plurality of frames fixed to connect both first hinge frames 310 between the plurality of first hinge frames 310 , and one side of the plurality of second connection frames 320 . A hinge bracket 321 to which the first electric cylinder 330 is hinged is formed on the outer surface of the connection frame to protrude.

And, the first electric cylinder 330 is provided with a first rod 331 that enters and exits from one end thereof, the first rod 331 is hinged to the second hinge bracket 212 of the main body 210, The first electric cylinder 330 is hinge-coupled to the hinge bracket 321 formed on the first connection frame 320 of the first base 300 .

Accordingly, as the first electric cylinder 330 is expanded and contracted, the first base 300 moves forward and backward in the body 210 while lifting the hinge 311 of the first hinge frame 310 as an axis, as shown in FIG. 6 . is provided to rotate.

Here, the first electric cylinder 330 and the first rod 331 may be hinge-coupled as opposed to the above-described embodiment.

On the other hand, the cylinders (first and second electric cylinders 330 and 430 ) in this embodiment are electric cylinders (or electric cylinders) controlled by a servo motor operated as a driving source using electricity as a driving source, not a driving source by pneumatic or hydraulic pressure. Since it is possible to accurately control without backlash as in pneumatic or hydraulic cylinders, the balance of the first and second bases 300 and 400 through the first and second electric cylinders 330 and 430 can be quickly achieved. while maintaining precision.

2 and 4, the second base 400 is provided side by side with the first connection frame 320 of the first base 300 on the first base 300, while one side of the first base A second hinge frame 410 which is hingedly coupled to a hinge bracket 312 formed on the first hinge frame 310 of 300 to rotate in the left and right directions, and a working machine is coupled to the upper surface thereof, and a second hinge The second connecting frame 420 provided to cross the frame 410, the second connecting frame 420 and the first base 300, both ends of which are hingedly coupled to the second hinge frame 410 while expanding and contracting. and a second electric cylinder 430 for rotating the second connection frame 420 in the left and right directions on the first base 300 .

The second hinge frame 410 is provided with a plurality of frames like the above-described first base 300 , and a first hinge frame 310 of the first base 300 is provided on one side of the plurality of second hinge frames 410 . ) is provided with a hinge 411 that is rotatably coupled to the hinge bracket 312 formed.

In addition, a mounting plate 412 installed orthogonally to the second hinge frame 410 is provided at one end of the second hinge frame 410 spaced apart from the hinge 411 , and the sensing unit 500 is provided on the mounting plate 412 . is installed and provided.

In addition, a square-shaped base plate 440 for mounting the working machine is fixedly provided on the upper surface of the plurality of second hinge frames 410 , and the base plate 440 includes the plurality of second hinge frames 410 and the plurality of second hinge frames 410 . By being fixedly provided on the square frame formed by the second connection frame 420 , it is possible to firmly withstand the high load of the mounter mounted on the base plate 440 as shown in FIG. 7 .

The second connection frame 420 is provided with a plurality of frames fixed to connect both second hinge frames 410 between the plurality of second hinge frames 410 , and one side of the plurality of second connection frames 420 . A hinge bracket 421 to which the second electric cylinder 430 is hinged is formed on the outer surface of the connection frame to protrude.

On the other hand, the second electric cylinder 430 is provided with a second rod 431 that enters and exits from one end, like the first electric cylinder 330 described above, and the second rod 431 is the first base 300 . ) is hinged to the lower end of the mounting bracket 313 , and the second electric cylinder 430 is hinged to the hinge bracket 421 formed in the second connection frame 420 of the second base 400 .

Accordingly, as the second electric cylinder 430 is expanded and contracted, the second base 400 is lifted from the first base 300 while lifting the hinge 411 of the second hinge frame 410 as an axis, as shown in FIG. 5 . It is provided to rotate in the front-rear direction.

The sensing unit 500 is provided in a box shape on the front surface of the mounting plate 412 of the second base 400 , and a sensing means for detecting the equilibrium of the second base 400 is provided therein. Such a sensing means may be composed of a leveling sensor or a gyro sensor that detects the equilibrium state of the second base 400 .

The operational relationship of the work vehicle having the balance maintaining function according to the present invention as described above will be described.

First, when the working vehicle 100 is inclined in the left and right direction, the balance maintaining unit 200 is operated as shown in FIG. 5 to maintain the left and right balance of the working machine.

That is, when the left and right inclination of the second base 400 is detected by the sensing unit 500 of the balance maintaining unit 200, the control unit inside the main body 210 is controlled by the sensing signal of the second electric cylinder 430. is operated, and the second electric cylinder 430 operated therefor is expanded and contracted by the inclined angle of the second base 400 .

At this time, when the second base 400 is inclined to the left due to the inclination of the vehicle body 110 in the second electric cylinder 430 , the second rod 431 is connected to the second electric vehicle as shown in the upper left diagram of FIG. 5 . It is drawn into the cylinder 430 to tilt the second base 400 to the right.

Then, the second base 400 is inclined to the right about the hinge 411 with the first base 300 as an axis, and the working machine fixed on the second base 400 is also inclined to the right like the second base 400 . to maintain equilibrium in the left and right directions.

Conversely, when the second base 400 is inclined to the right, the second rod 431 is drawn out from the second electric cylinder 430 and expanded to move the second base 400 to the left, as shown in the upper right diagram of FIG. 5 . It is tilted, and accordingly, the working machine is also tilted to the left like the second base 400 to maintain the balance in the left and right directions.

On the other hand, in maintaining the left and right balance of the working machine operated in this way, the balance maintaining unit 200 is operated independently of the inclination of the work vehicle 100 , and the left and right balance of the work machine is quickly maintained even in a state where the work vehicle 100 is tilted. be able to keep

In addition, when the working vehicle 100 is tilted in the front and rear direction and the front and rear tilt of the second base 400 is detected by the sensing unit 500 of the balance maintaining unit 200, the body 210 is detected by the detection signal. The internal control unit operates the first electric cylinder 330 , whereby the first electric cylinder 330 is stretched and contracted by the inclined angle of the second base 400 .

At this time, in the first electric cylinder 330, when the second base 400 is inclined backward, the first rod 331 is drawn into the first electric cylinder 330 as shown in the upper left view of FIG. The base 300 is tilted forward.

Then, the second base 400 provided on the first base 300 is tilted forward like the first base 300 , and the working machine fixed on the second base 400 is also like the second base 400 . It is tilted forward to maintain the equilibrium in the forward and backward directions.

And, when the second base 400 is tilted forward, as shown in the upper right diagram of FIG. 6 , the first rod 331 is drawn out from the first electric cylinder 330 and expanded to move the second base 400 rearward. It is inclined, and accordingly, the working machine is also inclined rearwardly like the second base 400 to maintain the equilibrium in the front-rear direction.

Even at this time, the balance maintaining unit 200 is operated independently of the inclination of the working vehicle 100 to maintain the front-to-rear equilibrium of the working machine so that the front-to-back balance of the working machine can be quickly maintained even when the working vehicle 100 is tilted. do.

Although the present invention has been described in detail through specific examples, this is for the purpose of describing the present invention in detail, and the present invention is not limited thereto. It is clear that the modification or improvement is possible.

All simple modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims.

100: work vehicle 110: body body
120: crawler 130: mounting frame
131: support part 132: holding part
200: balance maintaining unit 210: body
211,212: hinge bracket 300: first base
310: first hinge frame 311: hinge
312: hinge bracket 313: mounting bracket
320: first connection frame 321: hinge bracket
330: first electric cylinder 331: first rod
400: second base 410: second hinge frame
411: hinge 412: mounting plate
420: second connection frame 421: hinge bracket
430: second electric cylinder 431: second rod
440: base plate 500: sensing unit

Claims (4)

A work vehicle comprising: a vehicle body driven by a crawler; and a balance unit configured to the vehicle body;
The balance maintaining unit includes: a body fixedly provided to the vehicle body;
a first base hinged to the body and provided to rotate in one direction while having a first electric cylinder for rotating it;
a second base provided to rotate in a direction crossing the first base hinged to the first base and provided with a second electric cylinder for rotating the second base;
a sensing unit provided on the second base to sense the balance of the second base;
A work vehicle including a; a work machine that is fixed to the second base and is provided to be horizontally maintained by the second base.
The method according to claim 1,
The first base includes a first hinge frame provided to rotate in the front-rear direction by being hinged on one side thereof to the body;
a first connection frame provided to cross the first hinge frame;
A work vehicle comprising a; a first electric cylinder that is provided to connect the first connection frame and the main body and rotates the first hinge frame and the first connection frame in the front-rear direction in the main body while expanding and contracting.
3. The method according to claim 2,
The second base is provided side by side with the first connection frame of the first base, and one side thereof is hinged to the first base so as to be rotated in the left and right direction, and the second hinge frame is provided with a working machine coupled to the upper surface thereof;
a second connection frame provided to cross the second hinge frame;
A work vehicle including a; a second electric cylinder provided to connect the second connecting frame and the first base to rotate the second hinge frame and the second connecting frame in the left and right directions on the first base.
4. The method according to claim 3,
A mounting bracket that is bent downward and protrudes is formed on the first hinge frame of the first base,
A work vehicle in which a second electric cylinder is inserted and received in the mounting bracket and is hinged, and the second electric cylinder is provided to be rotated by the first base together with the second base.

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