KR20100026690A - Counterweight hoisting mechanism for excavator - Google Patents
Counterweight hoisting mechanism for excavator Download PDFInfo
- Publication number
- KR20100026690A KR20100026690A KR1020080085794A KR20080085794A KR20100026690A KR 20100026690 A KR20100026690 A KR 20100026690A KR 1020080085794 A KR1020080085794 A KR 1020080085794A KR 20080085794 A KR20080085794 A KR 20080085794A KR 20100026690 A KR20100026690 A KR 20100026690A
- Authority
- KR
- South Korea
- Prior art keywords
- counterweight
- base plate
- vehicle body
- reducer
- motor
- Prior art date
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/18—Counterweights
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
Description
The present invention relates to a construction machine having a counterweight or a balance weight, and more particularly, to a counterweight hoisting apparatus for easily attaching and detaching a counterweight to a body frame of an excavator.
Construction machinery such as excavators or forklift trucks typically have a counterweight or balance weight made from casting. Such a counter waiter is mounted behind the body frame of the construction machine to maintain the construction machine's balance when acting on the load on the construction machine.
This counterweight is generally fastened to the frame using a plurality of bolts and nuts. Since the mating surface of the counterweight and the body frame engaged with the counterweight extends substantially vertically, a plurality of bolts must be inserted into each bolt fastener while supporting the weight counterweight. In addition, the counterweight of the weight should be moved and adjusted for the engagement position with respect to the body frame. Therefore, fastening the counterweight to the body frame is a difficult and time consuming task.
Japanese Laid-Open Patent Publication No. 2001-151487 discloses a counterweight mounting method that reduces the time and effort for mounting the counterweight to a vehicle body frame.
In the said Japanese patent, a mounting component is provided in the rear axle frame extending rearward from the vehicle body frame. More specifically, the counterweight is temporarily mounted on the mounting parts of the rear axle frame, and then the counterweight is moved vertically, horizontally and laterally so that the bolts provided on the body frame coincide with the bolt fasteners formed on the counterweight. Adjust the position of the counter waiter. Thereafter, the bolt and the nut are tightened to couple the counterweight to the body frame.
According to the Japanese patent, the counterweight is coupled to the vehicle body frame while the counterweight is mounted on the mounting component. However, while adjusting the position of the counterweight, the bolt must be inserted into the corresponding bolt fastener. Therefore, the time and effort for coupling the counterweight to the body frame does not shorten sufficiently.
In order to solve the above problems, a counterweight hoisting apparatus having a hydraulic cylinder or a crane has been proposed. The hydraulic cylinder or crane uses power of the construction machine itself, and is configured to mount the counterweight on the rear of the vehicle body using hydraulic pressure.
1 to 3 show a counterweight hoisting apparatus using a conventional hydraulic cylinder.
The counterweight hoisting device includes a
The
One end of the connecting
Conventional counterweight hoisting device has the advantage that it is possible to mount a heavy counterweight in the rear of the vehicle body using the power of the construction machine itself, without using the device provided in the workplace. However, it is not easy to align the mounting hole formed in the other end of the connecting rod with the mounting hole formed in the predetermined portion of the counterweight.
In particular, it is very difficult to align the mounting hole of the connecting rod and the mounting hole of the counterweight in a site with an uneven ground such as a construction site.
In order to align the mounting holes of the connecting rod and the counterweight, there is a need to operate the construction machine or move the counterweight. However, aligning the center of the mounting hole by operating construction machinery or by moving the counterweight also requires considerable skill.
Accordingly, an object of the present invention is to provide a construction machine for easily mounting the counterweight on the rear of the vehicle body by using its own power of the construction machine.
Another object of the present invention is to provide a construction machine for easily mounting the counterweight on the rear of the vehicle body regardless of the place.
In order to achieve the above and other objects of the present invention, a counterweight hoisting apparatus for mounting a counterweight to the rear of the vehicle body of the construction machine, the base plate is mounted to the rear of the vehicle body, and a plurality of through holes are formed; A pair of wires installed on one side of the base plate, the motor / reduction gear assembly including a motor and a reducer, wound in opposite directions to the output shaft of the reducer, and hooks connected to free ends thereof; There is provided a counterweight hoisting device comprising at least two pairs of rollers mounted on a base plate to reverse the direction of the.
The counterweight is equipped with a rod pin for fixing the hook portion of the hook, and a pair of brackets are mounted at the rear of the vehicle to support the counterweight.
According to the configuration of the present invention, since the counterweight is elevated by using a rope, and the counterweight can be easily mounted on the rear of the vehicle body, there is no need to precisely align the construction machine and the counterweight.
The counterweight hoisting apparatus according to the present invention can be mounted on the rear of the vehicle without using a separate hydraulic cylinder or crane, regardless of the location.
Hereinafter, a counterweight hoisting apparatus for a construction machine according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 4 and 5.
The counterweight hoisting apparatus according to the present invention includes a
The motor /
Since the
The
In addition, the
The motor / reduction gear assembly is configured to be operated by its own power of the construction machine, and can be turned on / off by means of a separate device or means installed in the instrument panel of the driver's seat.
Although the rope is used as a means for elevating the counterweight in the above embodiment, it is possible to elevate the
When the
According to the above configuration, there is no need to precisely align the construction machine and the counterweight, there is an advantage that the counterweight can be easily mounted on the rear of the vehicle body by lifting the counterweight using the
Although the present invention has been described with reference to the above embodiments, the protection scope to be protected is not limited by the above embodiments. The protection scope of the present invention is determined by the following claims.
1 is a side view showing a construction machine equipped with a conventional counterweight hoisting device;
2 is a plan view showing a construction machine equipped with a conventional counterweight hoisting device;
3 is a perspective view showing a state in which a conventional counterweight hoisting apparatus mounts a counterweight at the rear of a vehicle body;
4 is a perspective view showing a counterweight hoisting apparatus according to a preferred embodiment of the present invention;
5 is a view showing a state in which the counterweight hoisting apparatus according to a preferred embodiment of the present invention is connected to the counterweight.
<Explanation of symbols for the main parts of the drawings>
100: counterweight
200: body
202: support bracket
210: base plate
220, 230: roller
250, 252: rope
260: hook
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080085794A KR20100026690A (en) | 2008-09-01 | 2008-09-01 | Counterweight hoisting mechanism for excavator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080085794A KR20100026690A (en) | 2008-09-01 | 2008-09-01 | Counterweight hoisting mechanism for excavator |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20100026690A true KR20100026690A (en) | 2010-03-10 |
Family
ID=42178001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020080085794A KR20100026690A (en) | 2008-09-01 | 2008-09-01 | Counterweight hoisting mechanism for excavator |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20100026690A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160142584A (en) | 2015-06-03 | 2016-12-13 | 두산인프라코어 주식회사 | Apparatus for mounting counterweight |
-
2008
- 2008-09-01 KR KR1020080085794A patent/KR20100026690A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160142584A (en) | 2015-06-03 | 2016-12-13 | 두산인프라코어 주식회사 | Apparatus for mounting counterweight |
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Date | Code | Title | Description |
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WITN | Withdrawal due to no request for examination |