JPH0344838Y2 - - Google Patents
Info
- Publication number
- JPH0344838Y2 JPH0344838Y2 JP16313787U JP16313787U JPH0344838Y2 JP H0344838 Y2 JPH0344838 Y2 JP H0344838Y2 JP 16313787 U JP16313787 U JP 16313787U JP 16313787 U JP16313787 U JP 16313787U JP H0344838 Y2 JPH0344838 Y2 JP H0344838Y2
- Authority
- JP
- Japan
- Prior art keywords
- bucket
- excavation
- excavating
- vibration
- eccentric mass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009412 basement excavation Methods 0.000 description 22
- 230000000694 effects Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 230000009931 harmful effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Shovels (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、油圧パワーシヨベル等のバケツトに
関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a bucket for a hydraulic power shovel or the like.
第４図に従来の油圧式パワーシヤベルを示す。
図において本体１′とブーム２′およびアーム３′
を介して連結されているバケツト４′を３本の油
圧シリンダ５′，同６′および同７′で駆動するこ
とによりバケツト歯先に掘削力を生じさせて図の
破線の方向に土砂などを破壊しながら、掘り取
り、積込む掘削機械である。
Figure 4 shows a conventional hydraulic power shovel.
In the figure, main body 1', boom 2' and arm 3'
By driving the bucket 4', which is connected through the bucket, with three hydraulic cylinders 5', 6', and 7', excavation force is generated at the tip of the bucket's teeth, and earth and sand are removed in the direction of the broken line in the figure. It is an excavation machine that digs and loads while destroying it.
上記従来の油圧式パワーシヨベルでは土砂を破
壊し掘削する力は油圧シリンダ５′，６′および同
７′による静的な力を利用している。従つて、そ
れら油圧シリンダ力以上の被掘削抵抗を有した硬
地盤の場合には、まつたく掘削できないか、ある
いは土砂掘削深さを浅くして土砂の掘削抵抗を小
さくして少しづつ破壊し積込むという掘削方法を
取らざるを得なかつた。
In the conventional hydraulic power shovel described above, the static force of the hydraulic cylinders 5', 6' and 7' is used to destroy and excavate earth and sand. Therefore, in the case of hard ground that has a resistance to excavation that is greater than the force of the hydraulic cylinder, it may not be possible to excavate immediately, or the excavation depth may be made shallow to reduce the excavation resistance of the earth and sand, and the earth and sand may be destroyed little by little and piled up. We had no choice but to use the excavation method of digging in.
本考案は上記従来の問題点解決の手段として、
シヨベル系掘削機の掘削装置のバケツトにおい
て、同バケツトのボデイより独立すると共に同ボ
デイに揺動可能に枢支された掘削歯体と、同掘削
歯体に設けられ回転によつて起振する偏心マス機
構と、同偏心マス機構を駆動する駆動手段とを具
備したことを特徴とする振動掘削バケツトを提供
しようとするものである。
This invention is a means to solve the above conventional problems.
In a bucket of an excavating device of a shovel-type excavator, there is an excavating tooth body that is independent from the body of the bucket and is pivotably supported on the body, and an eccentricity that is provided on the excavating tooth body and causes vibration by rotation. It is an object of the present invention to provide a vibratory excavating bucket characterized by comprising a mass mechanism and a driving means for driving the eccentric mass mechanism.
本考案は上記のように構成されるので次に作用
を有する。即ち、バケツトのボデイに枢支された
掘削歯体が偏心マス機構によつて振動し、動的な
力を歯先に加えるので静的な力では掘削困難であ
つた硬地盤を容易に掘削する。
Since the present invention is constructed as described above, it has the following effects. In other words, the excavating tooth body, which is pivotally supported on the bucket body, is vibrated by the eccentric mass mechanism and dynamic force is applied to the tooth tip, making it easy to excavate hard ground that would be difficult to excavate with static force. .
〔実施例〕
本考案の一実施例を第１図ないし第３図により
説明する。[Embodiment] An embodiment of the present invention will be described with reference to FIGS. 1 to 3.
図において、バケツトボデイ１の一端には、バ
ケツトボデイ１から独立し、ピン２によつて揺動
可能に枢支された掘削歯アーム３があり、同３に
は硬度を付与された掘削歯１０が並列して複数取
付けられている。ピン２に対して、掘削歯１０と
は反対側の掘削歯アーム３には、モータ６によつ
て回転駆動される偏心マス機構４が取付けられて
おり、後述の通り、一対の偏心マス４ａの回転に
よつて振動が生じ、掘削歯アーム３と共に掘削歯
１０が振動して地盤等に喰込みやすい構成となつ
ている。なお、バケツトボデイ１の上部には本実
施例のバケツトを油圧パワーシヨベルのアーム等
へ取付けるための耳金５が設けられている。第２
図は上記偏心マス機構４を説明するため、第１図
の−矢線に沿つて見た平断面図で、一対の掘
削歯アーム３間に、平行に支持された軸７及び同
８には図示のようにカム状の偏心マス４ａが２個
づつ対向して取付けられており、軸７，同８の同
じ側の一端は同径同歯の２枚の歯車９によつて相
互が逆方向に回転し合うよう連結されている。そ
の一つ、たとえば軸７には駆動用のモータ６が取
付けられている。 In the figure, at one end of the bucket body 1, there is an excavation tooth arm 3 which is independent of the bucket body 1 and is swingably supported by a pin 2, and in which excavation teeth 10 given hardness are arranged in parallel. Multiple units are installed. An eccentric mass mechanism 4 that is rotationally driven by a motor 6 is attached to the excavation tooth arm 3 on the opposite side of the pin 2 from the excavation teeth 10. Vibration is generated by the rotation, and the excavating tooth 10 vibrates together with the excavating tooth arm 3, making it easy to bite into the ground or the like. Incidentally, a lug 5 is provided on the upper part of the bucket body 1 for attaching the bucket of this embodiment to an arm of a hydraulic power shovel or the like. Second
In order to explain the eccentric mass mechanism 4, the figure is a plan sectional view taken along the - arrow line in FIG. As shown in the figure, two cam-shaped eccentric masses 4a are mounted facing each other, and one end of the shafts 7 and 8 on the same side is connected to two gears 9 with the same diameter and the same teeth, so that they are rotated in opposite directions. They are connected so that they rotate together. A driving motor 6 is attached to one of them, for example, the shaft 7.
以上の構成においてモータ６が軸７を回転駆動
すれば軸８は歯車９によつて逆回転するが、その
際の相互の偏心マス４ａの対向関係は第３図に示
す通りである。即ち、図で軸７が矢印の向きに、
イ，ロ，ハ，ニの順で回転すると軸７及び同８の
各偏心マス４ａは、その長手方向が、共通の直線
の矢印で示した向きに向く。即ち、イとハの状態
では相互に偏心による起振力は打消されるが、ロ
ロとニの状態では起振力が相加して矢印の向きに
現われる。従つて起振力は水平方向には現われ
ず、垂直方向にのみ現われることになる。他方、
第１図に示すように掘削歯アーム３はピン２を中
心にして掘削歯１０のある下方は略上下方向を向
き、上方は水平方向に向いた直角状をなしている
ので、軸７と同８とが第１図で略水平方向に並ん
だ上記偏心マス機構４で、起振力が上下方向に現
われることはシーソーに模せば明らかなように掘
削歯１０では起振力が歯の向きに現われることに
なり、地盤等に対する喰込みを動的に助勢する。
又、第４図からも分かるようにバケツトを支える
アームやブームの長手方向に対し、掘削歯１０は
概ね垂直に近い向きに取付くので、掘削歯１０の
向きに生じる振動はアームやブームの軸と垂直方
向の撓みによつて吸収され、本体その他の主要な
機器、部材には何ら有害な影響を与えないという
好都合な利点をも併わせ持つ。又、偏心マス機構
４自身も掘削歯アーム３によつて片持状に懸架さ
れているのでバケツトボデイ１から強い衝撃を受
けることは少なく故障の懸念は小さい。そのこと
は取りもなおさず偏心マス機構４がバケツトボデ
イ４を介して油圧パワーシヨベルの本体等に振動
等の悪影響を及ぼさないことを意味している。 In the above configuration, when the motor 6 rotates the shaft 7, the shaft 8 is rotated in the opposite direction by the gear 9, and the opposing relationship of the eccentric masses 4a at this time is as shown in FIG. That is, in the figure, axis 7 is in the direction of the arrow,
When rotated in the order of A, B, C, and D, the longitudinal directions of the eccentric masses 4a of the shafts 7 and 8 are oriented in the direction indicated by the common straight arrow. That is, in the states A and C, the excitation forces due to eccentricity are mutually canceled, but in the states Rolo and D, the excitation forces are added and appear in the direction of the arrow. Therefore, the excitation force does not appear in the horizontal direction, but only in the vertical direction. On the other hand,
As shown in FIG. 1, the digging tooth arm 3 has a right-angled shape with the pin 2 as the center, with the lower part where the digging tooth 10 is located facing in the vertical direction, and the upper part facing in the horizontal direction. In the eccentric mass mechanism 4 in which 8 and 8 are aligned in the substantially horizontal direction in FIG. , which dynamically assists in digging into the ground.
Furthermore, as can be seen from Fig. 4, the digging teeth 10 are installed almost perpendicularly to the longitudinal direction of the arm or boom that supports the bucket, so the vibrations generated in the direction of the digging teeth 10 are caused by the axis of the arm or boom. It also has the advantage that it is absorbed by vertical deflection and has no harmful effect on the main body or other major equipment or members. Further, since the eccentric mass mechanism 4 itself is suspended in a cantilevered manner by the excavating tooth arm 3, it is unlikely to receive strong impact from the bucket body 1, and there is little fear of failure. This means that the eccentric mass mechanism 4 does not exert an adverse influence such as vibration on the main body of the hydraulic power shovel through the bucket body 4.
なお、振動力は一般にそのエネルギーに比して
非常に強大であるから、モータ６は小型であつて
も本実施例の掘削力はきわめて顕著である。又、
振動力はその振動の二乗に比例することも知られ
ているので掘削アーム３の剛性を高めると同時に
モータ６を高速化することによつて広い領域に亘
つて地盤硬度に適した振動掘削バケツトの選択が
可能となる。 Note that since the vibration force is generally very strong compared to its energy, the excavation force of this embodiment is extremely significant even though the motor 6 is small. or,
It is also known that the vibration force is proportional to the square of the vibration, so by increasing the rigidity of the excavation arm 3 and at the same time increasing the speed of the motor 6, it is possible to make a vibrating excavation bucket suitable for ground hardness over a wide area. Choice becomes possible.
以上実施例では偏心マス機構４を掘削歯アーム
３のピン２の位置に対し、掘削歯１０と反対側に
設けたが、掘削の邪魔にならなければ掘削歯１０
の側に設けられてもよい。又、掘削歯アーム３と
掘削歯１０は一体成形されていても勿論よい。モ
ータ６は電動式、油圧式その他何のような駆動型
式であつてもよく、直結式、減速式、その他何れ
の継手を介して連結されてもよい。 In the above embodiment, the eccentric mass mechanism 4 is provided on the opposite side of the excavation tooth 10 with respect to the position of the pin 2 of the excavation tooth arm 3, but if it does not interfere with excavation, the eccentric mass mechanism 4
It may be provided on the side of Further, the digging tooth arm 3 and the digging tooth 10 may of course be integrally molded. The motor 6 may be of any drive type such as an electric type, a hydraulic type, or the like, and may be connected via a direct coupling type, a reduction type, or any other type of joint.
本考案は上記のように構成されるので次の効果
を有する。
Since the present invention is configured as described above, it has the following effects.
(1) 投入エネルギーに比し、大きな力を創出する
振動力を掘削力に付加するので硬い地盤も容易
に掘削できる。(1) It adds vibrational force to the excavation force that creates a large force compared to the input energy, making it easy to excavate even hard ground.
(2) 付加する振動力の起振に偏心マス機構を用い
るので油圧パワーシヨベルのアーム軸方向には
振動が生ぜず、アーム軸の垂直方向と概ね一致
する掘削歯の方向にのみ振動が生じ、有害振動
の抑止と有効振動の助勢という理想的な振動掘
削バケツトが得られる。(2) Since an eccentric mass mechanism is used to generate the added vibration force, vibrations do not occur in the direction of the arm axis of the hydraulic power shovel, but only in the direction of the excavation teeth, which is roughly aligned with the vertical direction of the arm axis, resulting in harmful vibrations. An ideal vibratory excavation bucket that suppresses vibration and supports effective vibration can be obtained.
(3) 地盤の硬さが振動源である偏心マス機構と、
そのモータに直接的な負荷を及ぼさない、いわ
ゆる非拘束振動であるため、それら振動源の故
障が少なく、使用寿命も長い。(3) Eccentric mass mechanism whose vibration source is the hardness of the ground;
Since it is a so-called unrestrained vibration that does not apply a direct load to the motor, there are fewer failures of these vibration sources and the service life is long.
(4) モータの回転数の選択によつて容易に振動数
を変更できるので掘削地域の地盤硬度に適した
振動掘削バケツトを自由に得られる。(4) Since the vibration frequency can be easily changed by selecting the rotation speed of the motor, it is possible to freely obtain a vibratory excavation bucket suitable for the ground hardness of the excavation area.
(5) バケツトのみで振動装置を構成するので、既
製の油圧パワーシヨベルにバケツトの取替えの
みで適用できる。その取替えも数本のボルト・
ナツトの着脱のみであるから、作業現場の地質
を見て最適バケツトを選択できるという即応性
がある。(5) Since the vibration device consists of only the bucket belt, it can be applied to existing hydraulic power shovels by simply replacing the bucket belt. Replacement requires several bolts and
Since only the nut needs to be attached and removed, it is possible to quickly respond by looking at the geology of the work site and selecting the most suitable bucket.
第１図は本考案の一実施例の斜視図、第２図は
第１図の−矢線に沿つて見た平断面図、第３
図は第２図の−矢線に沿つて偏心マス４ａ
を、その取付軸である軸７、同８の回転方向に1/
４回転づつ回転して示した姿勢図、第４図は従来
例の油圧式パワーシヨベルの側面図である。
１……バケツトボデイ、２……ピン、３……掘
削歯アーム、４……偏心マス機構、４ａ……偏心
マス、５……耳金、６……モータ、７，８……
軸、９……歯車、１０……掘削歯。
Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 is a plan cross-sectional view taken along the - arrow line in Fig. 1, and Fig. 3 is a perspective view of an embodiment of the present invention.
The diagram shows eccentric mass 4a along the - arrow line in Figure 2.
1/1 in the rotational direction of shafts 7 and 8, which are the mounting shafts.
FIG. 4 is a side view of a conventional hydraulic power shovel. 1...Bucket body, 2...Pin, 3...Drilling tooth arm, 4...Eccentric mass mechanism, 4a...Eccentric mass, 5...Lug, 6...Motor, 7, 8...
Shaft, 9...gear, 10...excavation tooth.
Claims (1)
て、同バケツトのボデイより独立すると共に同ボ
デイに揺動可能に枢支された掘削歯体と、同掘削
歯体に設けられ回転によつて起振する偏心マス機
構と、同偏心マス機構を駆動する駆動手段とを具
備したことを特徴とする振動掘削バケツト。 In a bucket of an excavating device of a shovel-type excavator, there is an excavating tooth body that is independent from the body of the bucket and is pivotably supported on the body, and an eccentricity that is provided on the excavating tooth body and causes vibration by rotation. A vibratory excavating bucket characterized by comprising a mass mechanism and a drive means for driving the eccentric mass mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16313787U JPH0344838Y2 (en) | 1987-10-27 | 1987-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16313787U JPH0344838Y2 (en) | 1987-10-27 | 1987-10-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0169852U JPH0169852U (en) | 1989-05-09 |
| JPH0344838Y2 true JPH0344838Y2 (en) | 1991-09-20 |
Family
ID=31447592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16313787U Expired JPH0344838Y2 (en) | 1987-10-27 | 1987-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0344838Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2537408B2 (en) * | 1989-06-14 | 1996-09-25 | 九州電力株式会社 | Buried machinery |
| JP2537409B2 (en) * | 1989-06-14 | 1996-09-25 | 九州電力株式会社 | Sewer compaction device with power shovel |
-
1987
- 1987-10-27 JP JP16313787U patent/JPH0344838Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0169852U (en) | 1989-05-09 |
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