WO2017061646A1

WO2017061646A1 - Construction equipment

Info

Publication number: WO2017061646A1
Application number: PCT/KR2015/010599
Authority: WO
Inventors: 최윤환; 최영진
Original assignee: 볼보 컨스트럭션 이큅먼트 에이비; 최윤환
Priority date: 2015-10-07
Filing date: 2015-10-07
Publication date: 2017-04-13

Abstract

Disclosed is construction equipment having a counter weight provided behind the upper frame thereof for weight balancing of the equipment. The construction equipment, according to the present invention, comprises: a lower travel body; an upper frame mounted on the lower travel body so as to be rotatable relative thereto; an operating room cab and a working device mounted on the front side of the upper frame; a counter weight having a roller for making the ground more firm, which is fixed to the lower side of the counter weight so as to be rotatable; and a lifting device connecting the counter weight to the rear side of the upper frame to lift and lower the counter weight to mount the counter weight on the upper frame or to place the counter weight on the ground.

Description

Construction machinery

The present invention relates to a construction machine, and more particularly, to a construction machine provided with a counterweight at the rear of the upper frame to meet the weight balancing of the equipment.

1 is a view showing the mounting of the counterweight for construction machinery according to the prior art.

As shown in FIG. 1, the upper frame 2 is rotatably mounted on the lower traveling body 1 in a clockwise or counterclockwise direction.

The cab 3 is mounted on one front side of the upper frame 2.

A work device 10, consisting of a boom 4, an arm 5 and a bucket 6, pivoted by respective

hydraulic cylinders

7, 8, 9 is adjacent the upper cab 3. It is mounted to the front of the frame 2.

A counterweight 11 is mounted on one rear side of the upper frame 2 to balance weights against self-weight of equipment or external forces acting on the work device 10.

A dozer blade 12 mainly for stopping the ground leveling is connected rotatably in a vertical direction by a hydraulic cylinder (not shown) on one front side of the lower traveling body 1.

According to the above-described configuration, in the case of a wheel type excavator, the work device 10 and the ceramic blade 12 frequently perform a stop work for leveling the ground flat such as a construction site.

When flattening by using a wheel-type excavator, the ground surface must be scratched evenly by the ceramic blade 12, which takes a lot of work time. In addition, after the flat surface of the ground by the ceramic blades 12, the work by pressing the ground by the bucket (6) of the work device 10 to be compacted.

That is, during the planarization work, the work of scraping the ground evenly by the ceramic blade 12 and the work of pressing the earth and sand scraped by the bucket 6 are carried out separately, thereby reducing work efficiency and weighting the work fatigue of the driver. There is a problem.

Therefore, the present invention is to solve the above problems, by using a wheel-type excavator to build a construction machine that can be grounded by the ground compaction roller mounted on the counterweight by laying down the counterweight on the ground It aims to provide.

According to one embodiment of the present invention to achieve the above and other objects of the present invention,

Undercarriage;

An upper frame pivotally mounted on the lower running body;

Cab cap and work device mounted on one front side of the upper frame;

A counterweight on which the ground compaction roller is rotatably fixed;

And a lifting device for lifting and lowering the counterweight to the rear of the upper frame so that the counterweight can be mounted on the upper frame or placed on the ground.

According to another embodiment of the present invention to achieve the above and other objects of the present invention,

Undercarriage;

An upper frame pivotally mounted on the lower running body;

Cab cap and work device mounted on one front side of the upper frame;

A hydraulic cylinder whose one end is rotatably connected to the lower left and right sides of the frame mounted to the rear of the upper frame;

A link having one end rotatably connected to the upper left and right sides of the frame and the other end of the hydraulic cylinder rotatably connected to an arbitrary position;

It provides a construction machine comprising a; a drum rotatably fixed to the other end of the link.

According to the present invention having the above-described configuration, since the ground is compacted by the ground compaction roller of the counterweight dragged down on the ground during the flattening operation, the flattening operation time is shortened, the work efficiency is increased, and the ground is made by the ceramic blade. Since the work of scraping the surface evenly and the work of compacting the soil that has been scratched by the ground compacting roller is performed at the same time, it is possible to reduce the work fatigue of the driver.

1 is a view showing the mounting of the counterweight for construction machinery according to the prior art,

2 is a view showing the mounting of the counterweight on the upper frame in the construction machine according to an embodiment of the present invention,

3 is a view showing a state in which the counterweight shown in FIG. 2 is placed on the ground;

Figure 4 is an excerpt of the apparatus for lifting the counterweight shown in Figure 2,

5 is a view showing that the construction machine according to another embodiment of the present invention, the ground by the counterweight formed of a drum.

One; Undercarriage

2; Upper frame

3; Cab Cap

4; Boom

5; Arm

6; bucket

7,8,9; Hydraulic cylinder

10; Work equipment

11,11a; Counterweight

12; Ceramic blade

13; Ground compactor

14; Hydraulic cylinder

15; link

Hereinafter, a construction machine according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

2 is a view showing the mounting of the counterweight for construction machinery according to an embodiment of the present invention, Figure 3 is a view showing a state in which the counterweight shown in Figure 2 is placed on the ground, Figure 4 is Here is an excerpt of an apparatus for lifting the illustrated counterweight.

2 to 4, the construction machine according to an embodiment of the present invention (referring to wheel type excavator as an example)

The upper frame 2 is rotatably mounted on the lower traveling body 1 in a clockwise or counterclockwise direction.

The cab 3 is mounted on one front side of the upper frame 2.

hydraulic cylinders

7, 8, 9 is adjacent the upper cab 3. It is mounted to the front of the frame 2.

The ceramic blade 12 mainly for ground stopping work is rotatably connected in the vertical direction by a hydraulic cylinder (not shown) to the front one side of the lower running body (1).

The grounding roller 13 is rotatably fixed to the lower side of the counterweight 11 so that the ground surface can be flattened while being brought into contact with the ground along the equipment during the flattening operation, and the counterweight 11 is The lifting device A is connected to the rear of the upper frame 2 so as to be liftable.

That is, the counterweight 11 is mounted to the rear of the upper frame 2 by the lifting device (A) to maintain the folded state during driving or excavation work, while the ground compacting roller ( 13) is laid down on the ground by the unfolding operation of the lifting device A to compact the ground surface.

As an example, the lifting device (A) and the frame 16 is mounted to the rear of the upper frame (2),

A first link 19 having one end rotatably fixed to the first fixing pin 18 fixed to the pair of first brackets 17 formed to face the frame 16;

A second link 21 having one end rotatably fixed to a second fixing pin 20 fixed to a pair of second brackets (not shown) formed on the frame 16 to the outside of the first bracket 17. )Wow,

A guide link 22 connected to the other end of the first and

second links

19 and 21 so as to be linkable;

A yoke 24 having a lower side rotatably connected to the counterweight 11 and having an upper side connected to a third fixing pin 23 fixed to the guide link 22;

One end is rotatably connected to a fourth fixing pin 25 fixed to the first bracket 17, and a fifth fixing pin (25) coaxially fixing the first link 19 and the guide link 22 ( 26) is provided with a hydraulic cylinder 27, the other end is rotatably connected.

According to the above-described configuration, as shown in FIGS. 3 and 4, when the hydraulic cylinder 27 is contracted and driven, the first and

second links

19 and 21 for linking the first and second fixing pins ( By rotating clockwise about 18,20 (in this case, the hydraulic cylinder 27 is rotated clockwise around the fourth fixing pin 25), the lifting by the yoke 24 The counterweight 11 connected by the device A can be detached from the upper frame 2 and lowered to the ground.

At this time, the ground compaction roller 13 fixed to the lower side of the counterweight 11 is in contact with the ground. Therefore, the ground compaction roller 13 of the counterweight 11 drawn along the equipment is rotated in contact with the ground during the stop operation to even the ground, such as the work site to flatten the ground surface.

On the other hand, as shown in Figures 2 and 4, when traveling or performing excavation work, the counterweight is fixed to the ground compaction roller 13 to perform the original function of the counterweight to balance the weight of the equipment (11) is to be brought into close contact with the rear of the upper frame (2).

That is, when the hydraulic cylinder 27 is extended and driven in a state where the counterweight 11 connected to the lifting device A is placed on the ground at an arbitrary position such as a workplace, the first and second links for link movement ( 19 and 21 are rotated counterclockwise about the first and second fixing pins 18 and 20 (in this case, the hydraulic cylinder 27 is rotated counterclockwise about the fourth fixing pin 25). Meeting). As a result, the counterweight 11 may be lifted from the ground to be in close contact with the rear of the upper frame 2.

5 is a view showing that the construction surface according to another embodiment of the present invention, the ground surface is compacted by a counterweight formed of a drum.

Referring to Figure 5, a construction machine according to another embodiment of the present invention (referring to wheel type excavator as an example)

The cab 3 is mounted on one front side of the upper frame 2.

hydraulic cylinders

7, 8, 9 is adjacent the upper cab 3. It is mounted to the front of the frame 2.

One end of the hydraulic cylinder 14 is rotatably connected to the lower left and right sides of the frame B mounted to the rear of the upper frame 2.

One end of the link 15 is rotatably connected to the upper left and right sides of the frame B, and the other end of the hydraulic cylinder 14 is rotatably connected to an arbitrary position of the link 15.

A drum-type counterweight 11a is rotatably fixed to the other end of the link 15 for flattening the ground surface while being dragged in contact with the ground along the equipment during the planarization operation.

At this time, one end of the link 15 and the hydraulic cylinder 14 is rotatably connected to the frame B, and the drum type counterweight 11a is rotatably fixed to the other end of the link 15. Is a technical content used in the art, so a detailed description thereof will be omitted.

Therefore, when the link 15 interlocked when the hydraulic cylinder 14 is extended and driven, the drum-type counterweight 11a fixed to the end of the link 15 is grounded by being rotated counterclockwise around the hinge part. It is lifted up to a certain height from. On the other hand, the drum-type counterweight 11a fixed to the end of the link 15 is rotated clockwise around the hinge part when the link 15 linked to the hydraulic cylinder 14 is contracted and driven on the ground. Put it down.

At this time, the drum-type counterweight (11a) by stretching and driving the drum-type counterweight (11a), the hydraulic cylinder (14), the hydraulic cylinder (14) is formed in a roller shape to balance the weight of the equipment and ground Since construction machinery other than the link 15 for elevating) is the same as the construction machinery shown in FIG. 1, detailed descriptions thereof are omitted, and overlapping components are denoted by the same reference numerals.

According to the above-described configuration, when traveling or performing an excavation work, the drum weight counter 11a is lifted to a certain height from the ground to perform the original function of the counterweight that balances the weight of the equipment. .

That is, as the hydraulic cylinder 14 is extended and driven, the link 15 linked to the hydraulic cylinder 14 rotates in the counterclockwise direction about the hinge portion. As a result, the drum-type counterweight 11a fixed to the other end of the link 15 can be held in a raised state from the ground.

On the other hand, in the case of the stop operation for leveling the ground flat, the drum-type counterweight 11a is laid down on the ground. That is, as the hydraulic cylinder 14 is contracted and driven, the link 15 to be interlocked rotates clockwise around the hinge portion. As a result, the drum-type counterweight 11a fixed to the other end of the link 15 is laid down on the ground.

Therefore, the drum-type counterweight 11a drawn along the equipment during the flattening operation rotates in contact with the ground, thereby making it possible to flatten the ground surface.

As described above, in the case of the stop operation to evenly ground the ground using a wheel type excavator, the drum-type counterweight dragged in contact with the ground evenly scraping the ground by the ceramic blades 12 and moving the equipment forward. It is possible to simultaneously carry out the work of flattening the earth and sand scratched by 11a.

Herein, while the present invention has been described with reference to the preferred embodiments, those skilled in the art will variously modify the present invention without departing from the spirit and scope of the invention as set forth in the claims below. And can be changed.

According to the present invention having the above-described configuration, when the flattening operation by using a wheel-type excavator, the counterweight is put on the ground, and the ground can be compacted by the ground compaction roller fixed to the counterweight.

Claims

Undercarriage;

An upper frame pivotally mounted on the lower running body;

Cab cap and work device mounted on one front side of the upper frame;

A counterweight on which the ground compaction roller is rotatably fixed;

And a lifting device for lifting and lowering the counterweight to the rear of the upper frame so that the counterweight can be mounted on the upper frame or placed on the ground.
The method of claim 1,

The construction machine is a construction machine, characterized in that the wheel type excavator.
Undercarriage;

An upper frame pivotally mounted on the lower running body;

Cab cap and work device mounted on one front side of the upper frame;

A hydraulic cylinder whose one end is rotatably connected to the lower left and right sides of the frame mounted to the rear of the upper frame;

A link having one end rotatably connected to the upper left and right sides of the frame and the other end of the hydraulic cylinder rotatably connected to an arbitrary position;

And a drum rotatably fixed to the other end of the link.
The method of claim 3,

The drum is lifted from the ground by a certain height by the rotation of the link during the extension of the hydraulic cylinder, and the drum is lowered to the ground by the rotation of the link during the contraction of the hydraulic cylinder machine.
The method of claim 1, wherein the lifting device

A frame mounted to the rear of the upper frame;

A first link having one end rotatably fixed to a first fixing pin fixed to a pair of first brackets formed opposite to the frame;

A second link one end of which is rotatably fixed to a second fixing pin fixed to a pair of second brackets formed on the frame outside the first bracket;

A guide link connected to the other end of the first and second links so as to be linkable;

A yoke having a lower side rotatably connected to the counterweight and having an upper side connected to a third fixing pin fixed to the guide link;

A hydraulic cylinder having one end rotatably connected to a fourth fixing pin fixed to the first bracket, and the other end rotatably connected to a fifth fixing pin for coaxially fixing the first link and the guide link. Construction machinery, characterized in that made by.