KR20170024295A

KR20170024295A - Working machine

Info

Publication number: KR20170024295A
Application number: KR1020150119365A
Authority: KR
Inventors: 이원석
Original assignee: 현대중공업 주식회사
Priority date: 2015-08-25
Filing date: 2015-08-25
Publication date: 2017-03-07
Also published as: KR102019780B1

Abstract

A working machine according to an embodiment of the present invention includes a side camera unit; And a length adjusting device which is provided on a main body provided with a driver's seat and moves the lateral camera part along the width direction of the main body.

Description

WORKING MACHINE

The present invention relates to a working machine.

There are excavators, skid loaders and wheel loaders on the working machines. Generally, the excavators are used to work on hydraulic excavation buckets, drainage on the foundation of the buildings, soil loading and so on. , A skid loader and a wheel loader are operated by hydraulic pressure similar to an excavator, and are used for a repetitive operation in a relatively narrow place as compared with an excavator.

Particularly, the wheel loader is used as a device to perform the work by carrying out a series of the process of digging the dirt with the bucket and loading the excavated dirt into the dump truck. The wheel loader advances at high speed toward the dirt in the state of the two- (0.5m ~ 1.0m), the dredge is pierced in a state where the speed change stage is one stage in order to increase the pulling force in the case of excavation work. Thus, the wheel loader varies the state of the speed change stage depending on the excavating operation or the traveling operation. The following description will be made with reference to the drawings.

6 is a view for explaining a blind spot in a general working machine.

Referring to Fig. 6, the working machine 1 is provided with a working device 3 provided with a bucket or the like in front of a main body 2 provided with an operator's seat. However, although the driver's seat of the working machine 1 is located at the center, the driver's seat is high, and the area 10, which can be confirmed in the driver's seat by the structure of various frames constituting the main body 2, (20) is generated, making it difficult to secure the driver's view.

Accordingly, there is an inconvenience that the driver has to confirm his / her head out of the driver's seat by a single operation, and a safety accident may occur due to the failure to detect the object of the dead zone 20, thereby requiring improvement.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the related art as described above, and it is an object of the present invention to reduce the blind spot by enlarging the photographing area of the camera, And to prevent a wearer from coming in contact with the workpiece.

Specifically, the length adjusting device is provided across the central portion of the main body.

Specifically, the length adjusting device includes: a linear guide in which a thread is formed; A first motor connected to the linear guide to rotate the linear guide; And a protrusion connected to the first motor, the protrusion length of which is adjusted according to the rotation of the linear guide, and the lateral camera part is connected to the protrusion member.

Specifically, the length adjusting device includes a frame in which the first motor and the protruding member are embedded; And a bearing portion provided between the protruding member and the frame.

Specifically, the length adjusting device may further include a support provided on the frame to support the linear guide.

Specifically, the bearing portion may include: a first bearing installed on the frame and supporting the protruding member; And a second bearing mounted on the protruding member and supporting the frame.

Specifically, the lateral camera section is characterized by being a wide angle camera.

Specifically, the side camera units are provided as a pair, and both lateral sides of the main body are monitored.

Specifically, the present invention is characterized by further comprising a rotating device for adjusting the angle of the lateral camera part.

Specifically, the rotating device includes a second motor provided in the length adjusting device and rotating the side camera portion.

The controller may further include a controller for controlling the length adjusting device in accordance with on-off of the start-up.

Specifically, a control unit is provided in front of the main body to sense the steering of the working device and to control the length adjusting device to move any one of the pair of side camera units corresponding to the detected steering And further comprising:

The working machine according to the present invention monitors images captured through a side camera or a rear camera through a monitor installed in the driver's seat of the working machine and monitors the blind spot so that the driver can check his / So it can be convenient.

Further, the present invention can reduce the square area by enlarging the monitored photographing area by rotating the side camera or changing the projecting length, and in particular, it is possible to increase the projected length in the steering direction at the time of steering, It is possible to prevent a safety accident as preventing the risk of a collision accident.

1 is a plan view showing a working machine according to an embodiment of the present invention.
2 is a front view showing a length adjusting device of a working machine according to an embodiment of the present invention.
3 and 4 are views for explaining the moving state of the projecting member in the length adjusting device for a working machine according to an embodiment of the present invention.
5 is a view showing a state in which a side camera is rotated by a rotating device in a working machine according to an embodiment of the present invention.
6 is a view for explaining a blind spot in a general working machine.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

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

FIG. 1 is a plan view showing a working machine according to an embodiment of the present invention, FIG. 2 is a front view showing a length adjusting device of a working machine according to an embodiment of the present invention, and FIGS. FIG. 5 is a view illustrating a state in which a side camera is rotated by a rotating device in a working machine according to an embodiment of the present invention. FIG. 5 is a view for explaining a moving state of a protruding member in a length adjusting device of a working machine according to an embodiment of the present invention. Fig.

Referring to FIG. 1, a work machine 100 includes a main body 110, a working device 120, a side camera 130, a length adjusting device 140, and a rotating device 160. Here, the working machine 100 may be a heavy equipment such as a forklift, a wheel loader, and a skid loader. In the following description, the working machine 100 is a wheel loader.

The main body 110 may be a cabin provided with a driver's seat for driving and operating and forming an outer appearance. An engine or the like for driving the working machine 100 may be provided inside the rear of the main body 110, The lower portion may be provided with a wheel for driving.

In addition, a counterweight (not shown) may be provided behind the main body 110, and the counterweight is provided to prevent the working machine 100 from being overturned when it carries a heavy object. In other words, the counterweight is provided at the intersection point where the work machine 100, on which the heavy object is mounted, is prevented from falling forward due to the object lifted by the bucket (not shown) of the work machine 100 , It acts as a weight against the lifting load.

In addition, the main body 110 may be formed in a box shape to provide an operator's seat, and an overhead guard 111 may be installed to protect the driver. Here, a length adjusting device 140, which will be described later, may be installed on the overhead guard 111.

A controller 112 may be provided in the main body 110 and the controller 112 may control the length adjuster 140. [

For example, the control unit 112 may control the length adjusting unit 140 according to the on-off of the starting. In a state where the starting is off, the length of the length adjusting unit 140 is minimized The lateral camera 130 may be housed in the frame 140A of the length adjusting device 140 to be described later or the entire width of the working machine 100 may not be extended. When the operation of the work machine 100 is started after the start of the work machine 100 is started, the length adjusting device 140 is installed in the length adjusting device 140 by moving the length adjusting device 140 in the left and right direction of the work machine 100 The monitoring area monitored by the side camera 130 can be expanded.

In addition, the control unit 112 can sense the steering of the work unit 120 and adjust the steering angle of the side camera unit 130 on the side where steering is performed among the pair of side camera units 130, .

The working device 120 may include a bucket (not shown) for work such as digging, a boom, and the like, and may include an actuator (not shown) such as a lever for operating buckets and boom . Here, the manipulating unit may be an EH RCV (Electronic Remote Control Valve), and may be a lever that the operator actually manipulates within the body of the wheel loader.

Here, when the operator operates the manipulator, an electric signal is generated from the manipulator in accordance with the manipulated variable by the operator, and the main control valve (MCV) is controlled by the electric signal to control the bucket, .

On the other hand, although the driver's seat of the working machine 100 is located at the center, a driver's seat is high and a rectangular area is formed on the side, front and rear sides due to the structure of various frames constituting the main body 110, The lateral camera unit 130 and the rear camera unit 150 are provided so that the driver can check the side and rear of the vehicle. Here, the rear camera unit 150 may be disposed behind the main body 110 to monitor the rear of the working machine 100.

Particularly, in the present embodiment, the side camera unit 130 is moved in the left area L and the right area R of the working machine 100 so as to monitor not only the side center part of the driver's seat but also the front and rear sides of the side .

Specifically, the side camera unit 130 may be a wide angle camera, and the lens of the wide angle camera may be a fisheye lens, so that the monitored viewing angle may be enlarged as compared to a general lens.

Here, the side camera units 130 are provided as a pair, and can monitor both the left side region L and the right side region R, which are both sides of the main body 110. The side camera unit 130 may be provided on the left and right sides of the main body 110 so as to be movable by the length adjusting device 140.

Also, although not shown in the drawing, screens monitored using the side camera unit 130 and the rear camera unit 150 can be displayed through a monitor (not shown) provided in the main body 110. [ The monitor may be connected to the side camera unit 130 and the rear camera unit 150 by wire or wireless connection and may be fixedly installed inside the driver's seat so as not to interfere with the operation visual field of the driver so that the side camera unit 130 or the rear camera unit 150, The driver can check the incoming image through the driver's seat. Such a monitor may be connected to a battery (not shown) of the working machine 100 to receive power, and may be provided with a monitor corresponding to the number of the side camera unit 130 and the rear camera unit 150, A plurality of images can be displayed sequentially through a monitor, and the like.

The length adjusting device 140 is provided in the main body 110 to extend the photographing area of the side camera part 130 and includes the side camera part 130 along the width direction of the main body 110 .

Here, the length adjusting device 140 may be arranged so that the center portion of the main body 110 is positioned in the width direction of the main body 110 so that the pair of side camera portions 130 can photograph both the left region L and the right region R of the working machine 100 And may be provided on both sides of the left and right sides of the stairs.

2 to 4, the length adjusting device 140 includes a frame 140A, a first motor 142, a linear guide 143, a projecting member 144, a bearing portion 145, (Not shown).

The frame 140A may be installed on the upper portion of the main body 110 to form an outer appearance and may include a first motor 142, a linear guide 143, a bearing portion 145, 144 can be embedded in such a manner that they can be projected in accordance with the length adjustment.

The frame 140A may have a hollow shape to provide a structure such as the first motor 142 and may have a hexahedron shape, for example, a polygonal shape across the central portion of the main body 110. [

In this case, the lateral camera unit 130 may be provided at both ends of the frame 140A. Both ends of the frame may protrude to cover the upper end of the lateral camera unit 130 to protect the lateral camera unit 130 from rainwater or the like. can do.

In addition, a pair of installation boxes 141 may be provided inside the frame 140A across the hollow of the frame 140A, and the installation box 141 may have a hexagonal shape corresponding to the inner shape of the frame 140A. As shown in FIG. The installation box 141 includes a first motor 142, a linear guide 143, and a bearing portion 145. The first motor 142, the linear guide 143, the bearing portion 145, The mounting box 141 can be mounted or dismounted on the frame 140A without being installed directly on the frame 140A and can be assembled in advance through the mounting box 141. This makes it easy to assemble, Can be easily repaired.

The first motor 142 may be provided as a pair corresponding to the number of the side camera units 130 and may include a motor shaft (not shown) to transmit the rotational force to the linear guide 143, 143 can be rotated.

The linear guide 143 is configured to adjust the protruding length of the protruding member 144 by receiving the rotational force from the first motor 142. One end of the linear guide 143 is connected to the first motor 142, Can be delivered. A thread is formed on the outer circumferential surface of the linear guide 143 so that the projecting length of the protruding member 144 can be adjusted by pivoting or pulling the protruding member 144 along the thread of the linear guide 143.

The protruding member 144 is adjusted in the protruding length according to the rotation of the linear guide 143, and the lateral camera unit 130 can be connected. For example, one end of the projecting member 144 may be rotatably provided on the linear guide 143, and the other end of the projecting member may be provided through the installation box 141. The protruding member 144 may be threaded to correspond to the thread of the linear guide 143 on the inner circumferential surface of one end of the protruding member 144 so as to be rotatable along the linear guide 143.

The bearing portion 145 may be provided between the protruding member 144 and the frame 140A to support the rotation of the protruding member 144. [ Here, the bearing part 145 may include a first bearing 1451 and a second bearing 1452. The first bearing 1451 is installed on the installation box 141 of the frame 140A, And the second bearing 1452 is installed on the protruding member 144 so that the protruding member 144 can support the mounting box 141 so as to be rotatable within the mounting box 141 . One or more of the first bearing 1451 and the second bearing 1452 may be provided, and the first bearing 1451 and the second bearing 1452 may be formed as a pair, and may have various shapes such as a roller bearing.

The bearing part 145 can prevent the side camera part 130 from shaking due to the traveling and the operation of the working machine 100 or the vibration caused by the movement of the projecting part 144, .

The support rods 146 may be installed in an installation box 141 provided inside the frame 140A to support the linear guides 143. [ For example, the support rods 146 may be in the form of a pair of plates. One support rods 1461 may be provided at one end of the protruding members 144 to support one end of the protruding members 144, The other support 1462 may be provided at the other end of the projecting member 144 to support the other end of the projecting member 144. Here, the support member 146 may be installed such that the protruding member 144 such as a pin connection with the protruding member 144 is rotatable.

3, the protruding length of the protruding member 144 is adjusted such that the side camera unit 130 is not collided with the periphery of the side of the working machine 100 when the working machine 100 travels, So that the side camera unit 130 can be provided in close contact with the frame 140A.

4, the projecting members 144 of the length adjusting device 140 may protrude from the left and right sides of the working machine 100 to move the position of the side camera unit 130. [ At this time, when the linear guide 143 is rotated by the driving of the first motor 142, the protruding member 144 protrudes outward from the mounting box 141 in conjunction with the linear guide 143 to extend the protruding length The side camera unit 130 can be moved to the outside of the working machine 100.

3 and 4, the protruding member 144 can be supported by the bearing portion 146 when moving along the linear guide 143 and moving left and right. More specifically, the first bearing 1451 can be fixed to the installation box 141 to support the protruding member 144 to move left and right, and the second bearing 1452 can be fixed to the protruding member 144, Can abut on the installation box 141 to support the projecting member 144 when moving left and right.

1 to 5, the rotation device 160 may adjust the angle of the side camera part 130 so as to extend the viewing angle in the front-rear direction on both sides of the working machine 100. The rotating device 160 may include a second motor to rotate the side camera unit 130 in the forward and backward directions.

Here, the motor shaft of the second motor is connected to the side camera part 130, and the side camera part 130 can be rotated according to the rotation of the second motor. The second motor provided with the side camera part 130 may be installed at the other end of the projecting part 144 so that the projecting position of the side camera part 130 can be adjusted.

On the other hand, a warning light 170, which is not described, can notify the danger through sound, light, etc. so that the driver can inform the third party of the danger when the third party is exposed to the monitored image. The warning light 170 may be in various forms such as a warning light.

As described above, according to the present embodiment, the image photographed through the side camera unit 130 or the rear camera unit 150 is monitored through the monitor installed in the driver's seat of the working machine 100 to monitor the dead zone, 110), it is not necessary to confirm the object in the dead zone, and it is convenient to recognize the object located in the dead zone, thereby preventing a safety accident.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: Conventional work machine 2: Conventional main body
3: Conventional working device 100: Working machine
110: main body 111: overhead guard
112: control unit 120:
130: side camera part 140: length adjusting device
140A: frame 141: installation box
142: first motor 143: linear guide
144: projecting member 145: bearing part
1451: first bearing 1452: second bearing
146: support 150: rear camera part
160: Rotating device

Claims

A side camera unit; And
And a length adjusting device which is provided on a main body provided with a driver's seat and moves the lateral camera part along the width direction of the main body.

The apparatus according to claim 1,
Wherein the main body is provided across a central portion of the main body.

The apparatus according to claim 1,
A linear guide in which a thread is formed;
A first motor connected to the linear guide to rotate the linear guide; And
And a projecting member connected to the first motor, the projecting length of which is adjusted according to the rotation of the linear guide, and to which the lateral camera part is connected.

The apparatus according to claim 3,
A frame in which the first motor and the protruding member are embedded; And
Further comprising a bearing portion provided between the projecting member and the frame.

5. The apparatus according to claim 4,
Further comprising a support provided on the frame for supporting the linear guide.

The bearing device according to claim 4,
A first bearing installed on the frame and supporting the projecting member; And
And a second bearing mounted on the protruding member and supporting the frame.

The camera according to claim 1,
And a wide angle camera.

The method according to claim 1,
Wherein the lateral camera units are provided in a pair to monitor lateral sides of the main body.

The method according to claim 1,
Further comprising a rotating device for adjusting an angle of the lateral camera part.

10. The apparatus according to claim 9,
And a second motor provided on the length adjusting device to rotate the side camera unit.

The method according to claim 1,
Further comprising a control unit for controlling said length adjusting device in accordance with the on-off of the start-up.

9. The method of claim 8,
Further comprising a control unit provided at the front of the main body to sense the steering of the working apparatus and to control the length adjusting apparatus to move any one of the pair of side camera units corresponding to the detected steering Wherein the work machine is a machine tool.