JPH0312170B2 - - Google Patents
Info
- Publication number
- JPH0312170B2 JPH0312170B2 JP27152286A JP27152286A JPH0312170B2 JP H0312170 B2 JPH0312170 B2 JP H0312170B2 JP 27152286 A JP27152286 A JP 27152286A JP 27152286 A JP27152286 A JP 27152286A JP H0312170 B2 JPH0312170 B2 JP H0312170B2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- frame members
- vehicle body
- pair
- hydraulic cylinder
- 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
- 239000012530 fluid Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 239000010426 asphalt Substances 0.000 description 21
- 239000000203 mixture Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Road Paving Machines (AREA)
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、アスフアルトフイニツシヤ等の走行
装置に係り、特に車体の姿勢の制御を容易にした
クローラ式走行装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a traveling device such as an asphalt finisher, and more particularly to a crawler type traveling device that facilitates control of the posture of a vehicle body.
「従来の技術」
一般に、アスフアルトフイニツシヤは、路面上
に車体を走らせながら車体前部のホツパ内のアス
フアルト合材を後部のスクリユに送つて所定の幅
で路面上に散布し、これをスクリードで敷固めて
路面のアスフアルト舗装を行うものであるが、そ
の走行装置としては、従来、クローラ式のものが
多く採用されている。``Prior art'' In general, an asphalt finisher works by sending the asphalt mixture in the hopper at the front of the vehicle body to the rear screw while the vehicle is running on the road surface, and scattering it on the road surface in a predetermined width. This is used to pave the road surface with asphalt by compacting the asphalt, and conventionally, many crawler-type vehicles have been used as the traveling device for this purpose.
上記アスフアルトフイニツシヤによつて舗装作
業を進める場合、仕上げ面を良好に維持するため
には、舗装する厚さに応じてスクリユの高さを変
えて、スクリユのスクリードとの位置関係を調整
することが必要であるが、その調整は極めて面倒
で、かつ舗装作業中にその調整を行わなくてはな
らず、作業能率が低下するという問題があつた。
また、舗装厚を一定にして平坦な仕上げ面にする
ためには、車体の姿勢をできるだけ一定に保つこ
とが望ましいが、路面の凹凸がそのままスクリユ
やスクリードに影響してしまい、平坦な舗装面を
得るのは難しかつた。更に、アスフアルトフイニ
ツシヤを搬送台車上に積み込む際に、スクリユや
スクリードが搬送台の傾斜部に当り、迅速な積み
込みができないという不都合があつた。また更
に、釣合梁により左右の荷重の均等化を行い、ク
ローラの接地性を改善している型式のアスフアル
トフイニツシヤにおいては、釣合梁を大型で重量
のあるものにして強固にしなければならず、その
ために種々の弊害が生じていた。 When proceeding with paving work using the above-mentioned asphalt finisher, in order to maintain a good finished surface, it is necessary to change the height of the screw according to the thickness of the paving and adjust the positional relationship of the screw with the screed. However, the adjustment is extremely troublesome and must be done during the paving work, which poses a problem of lowering work efficiency.
In addition, in order to maintain a constant pavement thickness and achieve a flat finished surface, it is desirable to keep the posture of the vehicle as constant as possible, but the unevenness of the road surface will directly affect the screed. It was difficult to obtain. Furthermore, when loading the asphalt finisher onto the carrier, the screw or screed hits the slope of the carrier, making it impossible to quickly load the asphalt finisher. Furthermore, in the type of asphalt finisher that uses a balance beam to equalize the load on the left and right sides and improve the ground contact of the crawler, the balance beam must be large and heavy and strong. As a result, various problems have arisen.
そこで、本出願人は、実願昭58−125499号にお
いて車体の側面に車高の調整ユニツトを設けて、
上記問題点を解消した走行装置を案出した。 Therefore, the present applicant provided a vehicle height adjustment unit on the side of the vehicle body in Utility Application No. 58-125499,
We have devised a traveling device that solves the above problems.
「発明が解決しようとする問題点」
ところが、上記走行装置は大型のアスフアルト
フイニツシヤに対しては更に改良を要したため、
本出願人は、実願昭60−186433号において、これ
を更に改良した走行装置を案出した。しかしなが
ら、この走行装置も車体の安定性、姿勢制御性等
の面で必ずしも満足すべきものでなかつた。``Problems to be solved by the invention'' However, the above-mentioned traveling device required further improvement for large asphalt finishers.
The present applicant devised a traveling device that was further improved from this in Utility Model Application No. 186433/1983. However, this traveling device is not necessarily satisfactory in terms of stability of the vehicle body, attitude controllability, etc.
本発明は上記背景の基になされたもので、上記
後者の走行装置を更に改良し、その安定性、制御
性を更に向上させて完成度を高めた走行装置を提
供することを目的とする。 The present invention was made based on the above-mentioned background, and an object of the present invention is to further improve the latter traveling device, and to provide a traveling device whose stability and controllability are further improved and the degree of perfection is increased.
「問題点を解決するための手段」
上記目的を達成するために、本発明のクローラ
式走行装置は、車体の左右の各側面に、該車体の
前後方向に沿う鉛直面内で回転させられる前後一
対の動輪が設けられ、上記各前後一対の動輪には
無端状のクローラが巻掛けられたクローラ式走行
装置において、上記車体の左右の各側面に少なく
とも3組のフレーム部材を、該車体左方の組のフ
レーム部材と該車体右方の組のフレーム部材の前
後位置が互いに同一になるように該車体の前後方
向に間隔をあけて上下自在に取り付け、上記各フ
レーム部材と上記車体との間に各フレーム部材を
上下動させる油圧シリンダを設けると共に、上記
各フレーム部材の下部に、上記クローラの接地側
の部位に上方から接触させられる少なくとも一つ
の転輪を取り付け、上記左方の組のフレーム部材
の内隣合う少なくとも一対のフレーム部材の油圧
シリンダに、油圧源に連絡されて該油圧源の作動
油を該油圧シリンダに導く第1油圧配管を接続
し、上記車体左方の少なくとも一対のフレーム部
材に対応する車体右方の少なくとも一対のフレー
ム部材の油圧シリンダに、上記油圧源に連絡さ
れ、上記第1油圧配管とは独立して上記油圧源の
作動油を該油圧シリンダに導く第2油圧配管を接
続し、上記車体左方の組のフレーム部材の内上記
少なくとも一対のフレーム部材以外の少なくとも
一つのフレーム部材の油圧シリンダと該少なくと
も一つのフレーム部材に対応する右方のフレーム
部材の油圧シリンダに、上記油圧源に連絡され、
上記第1、第2油圧配管とは独立して上記油圧源
の作動油を該油圧シリンダに導く第3油圧配管を
接続して構成したものである。"Means for Solving the Problems" In order to achieve the above object, the crawler type traveling device of the present invention has front and rear wheels that are rotated in a vertical plane along the front and rear direction of the vehicle body on each of the left and right sides of the vehicle body. In a crawler type traveling device, in which a pair of driving wheels is provided, and an endless crawler is wound around each pair of front and rear driving wheels, at least three sets of frame members are installed on each left and right side of the vehicle body. The frame members of the set of frame members and the set of frame members on the right side of the vehicle body are mounted vertically freely at intervals in the longitudinal direction of the vehicle body so that the front and rear positions of the frame members of the set of frame members on the right side of the vehicle body are the same as each other, and between each of the frame members and the vehicle body. A hydraulic cylinder is provided to move each frame member up and down, and at least one wheel is attached to the lower part of each frame member so as to be brought into contact with the ground-contacting side portion of the crawler from above. A first hydraulic pipe is connected to a hydraulic cylinder of at least one pair of adjacent frame members among the members, and is connected to a hydraulic power source to guide hydraulic fluid from the hydraulic power source to the hydraulic cylinder, and the first hydraulic pipe is connected to the hydraulic cylinders of at least one pair of adjacent frame members, and A second hydraulic pressure is connected to the hydraulic pressure source to hydraulic cylinders of at least one pair of frame members on the right side of the vehicle body corresponding to the members, and a second hydraulic pressure is connected to the hydraulic pressure source to guide the hydraulic fluid of the hydraulic source to the hydraulic cylinders independently of the first hydraulic piping. A hydraulic cylinder of at least one frame member other than the at least one pair of frame members of the set of frame members on the left side of the vehicle body, and a hydraulic cylinder of the right frame member corresponding to the at least one frame member, to which the piping is connected. , the above hydraulic power source is contacted,
A third hydraulic pipe is connected to the first and second hydraulic pipes to guide the hydraulic fluid of the hydraulic power source to the hydraulic cylinder independently of the first and second hydraulic pipes.
「作用」
上記クローラ式走行装置において、各油圧配管
を通じて油圧源からの圧油が各油圧シリンダに流
されて各油圧シリンダが伸縮作動されると、フレ
ーム部材と転輪が上下されて、車体の高さが調整
される。車体の左方の少なくとも一対のフレーム
部材とこれらに対応する右方の少なくとも一対の
フレーム部材はそれぞれ独立に上下させることが
でき、車体の左右の高低を変えることができる。
また、左右に亘る少なくとも一対のフレーム部材
は上記左右の少なくとも各一対のフレーム部材の
上下とは独立に上下される。したがつて、車体の
左方、右方及び幅方向の3点で車体の姿勢が調整
されることになり、全体として極めて安定性がよ
く、しかも調整が容易かつ確実となる。"Function" In the crawler type traveling device described above, when pressure oil from the hydraulic source flows through each hydraulic pipe to each hydraulic cylinder and each hydraulic cylinder is operated to extend or contract, the frame members and wheels are moved up and down, and the vehicle body is moved up and down. The height is adjusted. At least one pair of frame members on the left side of the vehicle body and at least a corresponding pair of frame members on the right side of the vehicle body can be moved up and down independently, and the height of the left and right sides of the vehicle body can be changed.
Further, the at least one pair of left and right frame members is moved up and down independently of the up and down of each of the at least one pair of left and right frame members. Therefore, the attitude of the vehicle body is adjusted at three points: the left side, the right side, and the width direction of the vehicle body, and the overall stability is extremely good, and the adjustment is easy and reliable.
さらに、上記左右の少なくとも各一対のフレー
ム部材及び上記車体左右に亘る少なくとも一対の
フレーム部材において、一対のフレーム部材は、
一対の油圧シリンダによりそれぞれ上下される
が、該一対の油圧シリンダは同一の油圧配管を通
じて相互に連絡されている。従つて、路面の凹凸
や傾斜により車体が前後または左右に傾斜したと
き、車体が水平状態にあるときに比べて何れか一
方の油圧シリンダの負荷が他方の油圧シリンダよ
り大きくなるが、負荷の大きい油圧シリンダ内の
作動油が負荷の低い油圧シリンダに流れて、低い
フレーム部材が上昇しかつ高いフレーム部材が下
降して、車体が安定な平衝状態に保たれる。 Furthermore, in the at least one pair of left and right frame members and the at least one pair of frame members spanning the left and right sides of the vehicle body, the pair of frame members are
It is moved up and down by a pair of hydraulic cylinders, and the pair of hydraulic cylinders are connected to each other through the same hydraulic piping. Therefore, when the vehicle body tilts back and forth or left and right due to unevenness or inclination of the road surface, the load on one of the hydraulic cylinders will be greater than the other hydraulic cylinder compared to when the vehicle body is in a horizontal state, but the load will be greater than that on the other hydraulic cylinder. The hydraulic fluid in the hydraulic cylinder flows to the hydraulic cylinder with a lower load, and the lower frame member is raised and the higher frame member is lowered, so that the vehicle body is maintained in a stable equilibrium state.
「実施例」
以下、本発明の一実施例を第1図ないし第10
図を参照して説明する。``Example'' Hereinafter, an example of the present invention will be described in Figures 1 to 10.
This will be explained with reference to the figures.
第2図はクローラ式走行装置を備えたアスフア
ルトフイニツシヤを示すもので、図中1は車体で
ある。該車体1の前部上部にはアスフアルト合材
を受け入れるホツパ2が設けられると共に、後部
には前から順にスクリユ3、スクリード4が固定
して取り付けられ、また図示さていないが車体の
内部下方には上記ホツパ2内のアスフアルト合材
をスクリユ3まで移送するバーフイーダが設けら
れている。 FIG. 2 shows an asphalt finish equipped with a crawler type traveling device, and numeral 1 in the figure is the vehicle body. A hopper 2 for receiving asphalt mixture is provided at the upper front part of the vehicle body 1, and a screw 3 and a screed 4 are fixedly attached to the rear part in order from the front. A bar feeder is provided to transport the asphalt mixture in the hopper 2 to the screw 3.
上記アスフアルトフイニツシヤのクローラ式走
行装置は、上記車体1の左右の側面の後部に設け
られた左右の起動輪5と、上記側面の前部に設け
られた左右の遊動輪6と、これら起動輪5と遊動
輪6に巻き掛けられた各クローラ7とから成る。
上記車体1の左右の各側面には、側面から左右方
向外方に突出する3組の支点軸8が、車体1の前
後方向に間隔をあけ、左方の支点軸8と右方の支
点軸(図示せず)が同軸になるように固定して取
り付けられており、各支点軸8には、鉛直に配さ
れて前後に延びる板状をなし、上下方向に延びる
長孔9aを有するフレーム部材9が、その長孔9
aに各支点軸8を挿通して前後方向に沿う鉛直面
内で回動自在かつ上下自在に取り付けられてい
る。そして、各フレーム部材9の前部及び後部に
は、それぞれブラケツト10が備えられ、該各ブ
ラケツト10には、左右両面に車軸11aが突設
された転輪11が車軸11aを各ブラケツト10
に支承されて取り付けられており、各転輪11は
上記クローラ7の内側面のガイド12に上方から
当接されるようになつている。 The crawler-type traveling device of the asphalt finisher includes left and right starting wheels 5 provided at the rear of the left and right sides of the vehicle body 1, left and right idle wheels 6 provided at the front of the sides, and these starting wheels. 5 and each crawler 7 wound around an idler wheel 6.
On each of the left and right side surfaces of the vehicle body 1, three sets of fulcrum shafts 8 projecting outward from the side surfaces in the left and right direction are spaced apart in the longitudinal direction of the vehicle body 1, a left fulcrum shaft 8 and a right fulcrum shaft. (not shown) are fixedly attached so as to be coaxial, and each fulcrum shaft 8 has a plate-shaped frame member arranged vertically and extending back and forth, and having a long hole 9a extending in the vertical direction. 9 is the long hole 9
Each fulcrum shaft 8 is inserted through a and is attached to be rotatable and vertically movable within a vertical plane along the front-rear direction. Brackets 10 are provided at the front and rear portions of each frame member 9, and rollers 11 having axles 11a protruding from both left and right sides of the brackets 10 support the axles 11a from each bracket 10.
Each roller 11 is adapted to abut against a guide 12 on the inner surface of the crawler 7 from above.
また、上記各フレーム部材9の外面側には、上
記長孔9aより前方の位置に支点ピン13が突設
され、該支点ピン13に、フレーム部材9とほぼ
平行な板状をなし、ほぼ中心部に係止穴14aが
形成されたクランク部材14が、その係止穴14
aに上記支点ピン13を嵌入して前後方向に沿う
鉛直面内で回動自在に取り付けられている。そし
て、該クランク部材14の後辺部は凹部が形成さ
れ、該凹部が上記支点軸8に係合されている。更
に、上記各フレーム部材9の外面側の上方部後方
寄りには、油圧シリンダ15のシリンダ本体15
aの基端がピン16aを介して取り付けられ、該
油圧シリンダ15のピストンロツド15bは、前
方に向かつて延びてその先端が上記クランク部材
14の上方部位にピン16bを介して連結されて
いる。ここで、上記油圧シリンダ15の先端のピ
ン16bと、クランク部材14の支点ピン13及
びクランク部材14の後部のフレーム部材9への
取付部位は、全体がL字形をなすような位置にそ
れぞれくるように設定されている。そして、各油
圧シリンダ15を伸張作動させると、クランク部
材14が支点ピン13を中心として第3図におい
て反時計廻りに回動し、フレーム部材9が下降さ
せられて車体1が上昇させられ、また各油圧シリ
ンダ15を収縮作動させると、クランク部材14
が逆方向に回動されてフレーム部材9が上昇させ
られ、車体1が下降するようになつている。ま
た、上記フレーム部材9の長孔9aとクランク部
材14の凹部とによつて、支点軸8に取り付けら
れたフレーム部材9は、所定の上下調整位置にお
いては、上下、左右の移動が拘束され、支点軸8
の回りに回動のみするようになつている。 A fulcrum pin 13 is protruded from the outer surface of each frame member 9 at a position forward of the elongated hole 9a. The crank member 14 having a locking hole 14a formed in the locking hole 14a
The fulcrum pin 13 is inserted into the fulcrum pin 13 and is rotatably attached within a vertical plane along the front-rear direction. A recess is formed in the rear side of the crank member 14, and the recess is engaged with the fulcrum shaft 8. Furthermore, a cylinder main body 15 of the hydraulic cylinder 15 is located near the rear of the upper part on the outer surface side of each of the frame members 9.
A piston rod 15b of the hydraulic cylinder 15 extends forward, and its tip is connected to the upper portion of the crank member 14 via a pin 16b. Here, the pin 16b at the tip of the hydraulic cylinder 15, the fulcrum pin 13 of the crank member 14, and the attachment portion of the rear part of the crank member 14 to the frame member 9 are positioned so that the entire body forms an L-shape. is set to . When each hydraulic cylinder 15 is extended, the crank member 14 rotates counterclockwise in FIG. 3 about the fulcrum pin 13, the frame member 9 is lowered, and the vehicle body 1 is raised. When each hydraulic cylinder 15 is contracted, the crank member 14
is rotated in the opposite direction, the frame member 9 is raised, and the vehicle body 1 is lowered. Further, the frame member 9 attached to the fulcrum shaft 8 is restrained from moving vertically and horizontally at a predetermined vertical adjustment position by the elongated hole 9a of the frame member 9 and the recessed portion of the crank member 14. Fulcrum shaft 8
It is designed to only rotate around the .
更に、上記フレーム部材9、油圧シリンダ15
等は、前述のように車体1の左右にそれぞれに3
組ずつ設けられているが、左方の前方の一対の油
圧シリンダ15には、油タンク、油圧ポンプ等か
ら成る油圧源(図示せず)に連絡された第1油圧
配管17が、これら一対の油圧シリンダ15の中
間位置で分岐されてそれぞれに接続され、また右
方の前方の一対の油圧シリンダ15には、上記油
圧源に連絡された第2油圧配管18が、これら一
対の油圧シリンダ15の中間位置で分岐されてそ
れぞれに接続されている。更に、上記左方の後部
の油圧シリンダ15と右方の後部の油圧シリンダ
15には、上記油圧源に連絡された第3油圧配管
19がこれら一対の油圧シリンダ15の中間位置
で分岐されてそれぞれ接続されている。上記各油
圧配管17,18,19の分岐前の位置にはそれ
ぞれ開閉弁17a,18a,19aが備えられて
いる。 Furthermore, the frame member 9 and the hydraulic cylinder 15
etc., as mentioned above, there are 3 on each side of the vehicle body 1.
The pair of hydraulic cylinders 15 on the left front are connected to a first hydraulic pipe 17 connected to a hydraulic source (not shown) consisting of an oil tank, a hydraulic pump, etc. The hydraulic cylinders 15 are branched at an intermediate position and connected to each other, and a second hydraulic pipe 18 connected to the hydraulic power source is connected to the right front pair of hydraulic cylinders 15. They are branched at intermediate positions and connected to each other. Further, a third hydraulic pipe 19 connected to the hydraulic power source is branched at an intermediate position between the pair of hydraulic cylinders 15 to the left rear hydraulic cylinder 15 and the right rear hydraulic cylinder 15, respectively. It is connected. On-off valves 17a, 18a, and 19a are provided at positions before branching of each of the hydraulic pipes 17, 18, and 19, respectively.
尚、図中20は各クローラ7の案内輪、21は
油圧シリンダ、23は駆動装置、24はフレーム
部材9とクランク部材14が支点軸8から離脱す
るのを防止する抜け止め金具、25はアキユムレ
ータである。 In the figure, 20 is a guide wheel of each crawler 7, 21 is a hydraulic cylinder, 23 is a drive device, 24 is a retainer for preventing the frame member 9 and crank member 14 from coming off from the fulcrum shaft 8, and 25 is an accumulator. It is.
しかして、上記アスフアルトフイニツシヤによ
つてアスフアルト舗装を行う場合は、ホツパ2内
のアスフアルト合材を車体1の後部側に送つてス
クリユ3によつて所定の幅で路面上に散布し、ス
クリード4でこれを敷固める。 When asphalt paving is performed using the above-mentioned asphalt finisher, the asphalt mixture in the hopper 2 is sent to the rear side of the vehicle body 1 and is spread on the road surface in a predetermined width by the screed 3. Let's solidify this.
上記のような舗装作業においては、舗装厚の厚
薄に応じてスクリユ3及びスクリード4の高さを
変えて舗装仕上げ面を良好にする必要がある。そ
のような場合、各油圧シリンダ15を動作させて
各フレーム部材9を上下し、車体1の高さを調整
し、これによりスクリユ3及びスクリード4の高
さを調整する。すなわち、車高を高くする場合
は、各油圧シリンダ15を伸張作動させて、各ク
ランク部材14を各支点ピン13を中心として第
3図において反時計廻りに回動させ、各フレーム
部材9及び転輪11を各支点軸8に対して車重に
抗して相対的に長孔9aに沿つて押し下げること
により車体1を上昇させる。また車高を低くする
場合は、逆に各油圧シリンダ15を収縮作動させ
ればよい。 In the above-mentioned paving work, it is necessary to change the heights of the screed 3 and the screed 4 depending on the thickness of the pavement to obtain a good paved surface. In such a case, each hydraulic cylinder 15 is operated to move each frame member 9 up and down to adjust the height of the vehicle body 1, thereby adjusting the heights of the screed 3 and the screed 4. That is, when raising the vehicle height, each hydraulic cylinder 15 is extended and each crank member 14 is rotated counterclockwise in FIG. 3 about each fulcrum pin 13, and each frame member 9 and The vehicle body 1 is raised by pushing down the wheels 11 along the elongated holes 9a relative to each fulcrum shaft 8 against the vehicle weight. When lowering the vehicle height, conversely, each hydraulic cylinder 15 may be contracted.
上記走行装置においては、車体1の左方の一対
のフレーム部材9とこれらに対応する右方の一対
のフレーム部材9をそれぞれ独立に上下させて、
車体1の左右の高低を調整することができるが、
調整後は、通常、開閉弁17a,18aを閉止し
てその位置を固定しておく。また、左右に亘る後
部の一対のフレーム部材9は上記左右の各一対の
フレーム部材9の上下とは独立に上下することが
できる。このように上記走行装置では、車体1の
左方、右方及び後部の3点で車体の姿勢を調整す
ることができるため、全体として極めて安定性が
よく、しかも調整が容易かつ確実にできる。 In the above traveling device, the pair of frame members 9 on the left side of the vehicle body 1 and the pair of frame members 9 on the right side corresponding to these are independently raised and lowered,
You can adjust the height of the left and right sides of the car body 1,
After adjustment, the on-off valves 17a and 18a are usually closed and their positions are fixed. Further, the pair of rear frame members 9 extending left and right can be moved up and down independently of the up and down directions of each pair of left and right frame members 9. In this manner, in the above-mentioned traveling device, the attitude of the vehicle body 1 can be adjusted at three points: the left side, the right side, and the rear, so that the overall stability is extremely good, and the adjustment can be performed easily and reliably.
また、舗装作業において、路面が不陸で車体1
が前後左右に傾き、荷重の均等化が図れない場合
がある。しかしながら、上記走行装置では、その
ような場合でも車体1は自然に安定な平衝状態に
戻ろうとする。すなわち、例えば、車体1の後部
の右側が左側より高くなつた時には、右側の油圧
シリンダ15の負担荷重が大きくなるので、右側
の油圧シリンダ15からの作動油が第3油圧配管
19を通じて左側の油圧シリンダ15に送り込ま
れる。これにより、右側の油圧シリンダ15が収
縮されると共に左側の油圧シリンダ15が伸張さ
れ、左側フレーム部材9の転輪11が支点軸8に
対して相対的に下がり、これとは逆に右側のフレ
ーム部材9の転輪11が上がることから、左右の
油圧シリンダ15の負荷荷重が等しくなり、左右
の転輪11はそれぞれの路面の起伏に応じてクロ
ーラ7を介して確実に接地されると共に安定な平
衝状態に戻ることになる。また、車体1の右側が
左側より低いとき、更に前後に傾斜しているとき
においても同様にクローラ7の良好な接地性が確
保されると共に車体1の平衝が保たれる。 In addition, during paving work, the road surface is uneven and the vehicle body
may tilt forward, backward, left or right, making it impossible to equalize the load. However, in the traveling device described above, even in such a case, the vehicle body 1 naturally tries to return to a stable equilibrium state. That is, for example, when the right side of the rear part of the vehicle body 1 is higher than the left side, the load borne by the right hydraulic cylinder 15 increases, so the hydraulic fluid from the right hydraulic cylinder 15 passes through the third hydraulic pipe 19 to the left hydraulic pressure. It is fed into the cylinder 15. As a result, the right hydraulic cylinder 15 is contracted and the left hydraulic cylinder 15 is expanded, and the rolling wheels 11 of the left frame member 9 are lowered relative to the fulcrum shaft 8. Since the rolling wheels 11 of the member 9 are raised, the loads on the left and right hydraulic cylinders 15 become equal, and the left and right rolling wheels 11 are securely grounded via the crawlers 7 according to the undulations of the respective road surfaces, and are stable. It will return to a state of equilibrium. Further, even when the right side of the vehicle body 1 is lower than the left side, and even when the vehicle body 1 is tilted back and forth, good ground contact of the crawler 7 is similarly ensured, and the balance of the vehicle body 1 is maintained.
更に、舗装作業が終了したアスフアルトフイニ
ツシヤを搬送台車に積み込む際には、後部の油圧
シリンダ15を最大限伸張させてスクリユ3及び
スクリード4の高さを上げた後、アスフアルトフ
イニツシヤを後進させて積み込めば、積み込み傾
斜角が小さくとれない積込み台でもスクリユ3及
びスクリード4を積込み台に当てることなく迅速
に積み込むことができる。 Furthermore, when loading the asphalt finisher after paving work onto the transport vehicle, the rear hydraulic cylinder 15 is extended to the maximum extent to raise the height of the screed 3 and the screed 4, and then the asphalt finisher is moved backwards. By loading, even a loading table whose loading inclination angle cannot be made small can be quickly loaded without the screw 3 and screed 4 hitting the loading table.
「発明の効果」
以上説明したように、本発明によれば、簡単な
操作により車体の高さや姿勢を調整でき、それに
より、アスフアルトフイニツシヤにあつては、舗
装厚さに対応しスクリユの高さの調整が簡単にで
き、しかも搬送台車への積み込みが容易になる。
また、車体姿勢を自動的に平衝化することができ
るから、路面の凹凸にかかわらず舗装厚を一定に
することができると共に、作業効率の向上を図る
ことができる。更に、本発明は、車体の左方の少
なくとも一対のフレーム部材とこれらに対応する
右方の少なくとも一対のフレーム部材をそれぞれ
独立に上下させるようにし、かつ左右に亘る少な
くとも一対のフレーム部材を上記左右の各一対の
フレーム部材の上下とは独立に上下させるように
したものであるから、車体の左方、右方及び幅方
向の3点で車体を上下してその姿勢を調整するこ
とができ、全体として極めて安定性がよく、また
調整が容易かつ確実にできるという効果を奏す
る。"Effects of the Invention" As explained above, according to the present invention, the height and posture of the vehicle body can be adjusted with simple operations, and as a result, in the case of asphalt finishing, the height of the screw can be adjusted according to the thickness of the pavement. The height can be easily adjusted, and loading onto a transport vehicle is also facilitated.
Furthermore, since the vehicle body posture can be automatically leveled, the pavement thickness can be kept constant regardless of the unevenness of the road surface, and work efficiency can be improved. Further, in the present invention, at least one pair of frame members on the left side of the vehicle body and at least one pair of corresponding frame members on the right side can be moved up and down independently, and at least one pair of frame members extending on the left and right sides can be moved up and down independently. Since each pair of frame members can be raised and lowered independently of the upper and lower positions, the attitude of the vehicle can be adjusted by raising and lowering the vehicle body at three points: left, right, and widthwise. The overall effect is that it is extremely stable and that adjustments can be made easily and reliably.
図面は本発明のクローラ式走行装置の一実施例
を示すもので、第1図は走行装置の油圧系統の概
略図、第2図は上記走行装置を備えたアスフアル
トフイニツシヤの側面略図、第3図は走行装置の
側面図、第4図は同平面断面図、第5図は第3図
の−矢視断面図、第6図は同−矢視断面
図、第7図は同−矢視断面図、第8図は同
−矢視断面図、第9図は同−矢視断面図、
また第10図は同−矢視断面図である。
1…車体、5…起動輪、6…遊動輪、7…クロ
ーラ、9…フレーム部材、11…転輪、14…ク
ランク部材、15…油圧シリンダ、17…第1油
圧配管、18…第2油圧配管、19…第3油圧配
管。
The drawings show an embodiment of the crawler-type traveling device of the present invention, and FIG. 1 is a schematic diagram of the hydraulic system of the traveling device, FIG. 2 is a schematic side view of an asphalt finisher equipped with the above-mentioned traveling device, and FIG. The figure is a side view of the traveling device, FIG. 4 is a cross-sectional view of the same plane, FIG. 5 is a cross-sectional view taken in the direction of the arrow in FIG. 8 is a sectional view taken in the same direction, FIG. 9 is a sectional view taken in the same direction,
Moreover, FIG. 10 is a cross-sectional view taken along the arrow. DESCRIPTION OF SYMBOLS 1... Vehicle body, 5... Starting wheel, 6... Idler wheel, 7... Crawler, 9... Frame member, 11... Rolling wheel, 14... Crank member, 15... Hydraulic cylinder, 17... First hydraulic piping, 18... Second hydraulic pressure Piping, 19...Third hydraulic piping.
Claims (1)
沿う鉛直面内で回転させられる前後一対の動輪が
設けられ、上記各前後一対の動輪には無端状のク
ローラが巻掛けられたクローラ式走行装置におい
て、上記車体の左右の各側面に少なくとも3組の
フレーム部材が、左方の組のフレーム部材と右方
の組のフレーム部材の前後位置が互いに同一にな
るように該車体の前後方向に間隔をあけて上下自
在に取り付けられ、上記各フレーム部材と上記車
体との間には各フレーム部材を上下動させる油圧
シリンダが設けられると共に、上記各フレーム部
材の下部には、上記クローラの接地側の部位に上
方から接触させられる少なくとも一つの転輪が取
り付けられ、上記左方の組のフレーム部材の内隣
合う少なくとも一対のフレーム部材の油圧シリン
ダには、油圧源に連絡されて該油圧源の作動油を
該油圧シリンダに導く第1油圧配管が接続され、
上記左方の少なくとも一対のフレーム部材に対応
する右方の少なくとも一対のフレーム部材の油圧
シリンダには、上記油圧源に連絡され、上記第1
油圧配管とは独立して上記油圧源の作動油を該油
圧シリンダに導く第2油圧配管が接続され、上記
左方の組のフレーム部材の内上記少なくとも一対
のフレーム部材以外の少なくとも一つのフレーム
部材の油圧シリンダと該少なくとも一つのフレー
ム部材に対応する右方のフレーム部材の油圧シリ
ンダには、上記油圧源に連絡され、上記第1、第
2油圧配管とは独立して上記油圧源の作動油を該
油圧シリンダに導く第3油圧配管が接続されて成
ることを特徴とするクローラ式走行装置。1 A crawler type vehicle in which a pair of front and rear driving wheels that rotate in a vertical plane along the longitudinal direction of the vehicle body is provided on each left and right side of the vehicle body, and an endless crawler is wrapped around each of the pair of front and rear driving wheels. In the traveling device, at least three sets of frame members are arranged on each left and right side of the vehicle body in the longitudinal direction of the vehicle body such that the left and right sets of frame members are in the same longitudinal position. A hydraulic cylinder is provided between each of the frame members and the vehicle body to move the frame members up and down, and a hydraulic cylinder is provided at the bottom of each of the frame members to allow the crawler to ground. At least one rolling wheel is attached to the side portion and is brought into contact with it from above, and the hydraulic cylinders of at least one pair of adjacent frame members of the left set of frame members are connected to a hydraulic power source and are connected to the hydraulic power source. A first hydraulic pipe that guides hydraulic fluid to the hydraulic cylinder is connected,
Hydraulic cylinders of at least one pair of right frame members corresponding to the at least one pair of left frame members are connected to the hydraulic power source, and the hydraulic cylinders of the at least one pair of right frame members are connected to the first hydraulic cylinder.
A second hydraulic pipe is connected to the second hydraulic pipe for guiding hydraulic fluid from the hydraulic power source to the hydraulic cylinder independently of the hydraulic pipe, and at least one frame member other than the at least one pair of frame members of the left set of frame members is connected. and the hydraulic cylinder of the right frame member corresponding to the at least one frame member are connected to the hydraulic power source, and are supplied with hydraulic oil of the hydraulic power source independently of the first and second hydraulic piping. A crawler type traveling device, characterized in that a third hydraulic pipe is connected to the hydraulic cylinder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27152286A JPS63125704A (en) | 1986-11-14 | 1986-11-14 | Crawler type running apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27152286A JPS63125704A (en) | 1986-11-14 | 1986-11-14 | Crawler type running apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63125704A JPS63125704A (en) | 1988-05-28 |
JPH0312170B2 true JPH0312170B2 (en) | 1991-02-19 |
Family
ID=17501240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27152286A Granted JPS63125704A (en) | 1986-11-14 | 1986-11-14 | Crawler type running apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63125704A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2562399Y2 (en) * | 1992-03-13 | 1998-02-10 | 日本車輌製造株式会社 | Crawler type construction machine |
EP2789528B1 (en) | 2013-04-12 | 2016-09-14 | Joseph Vögele AG | Road paver with endless track units |
EP3686345B1 (en) * | 2017-12-13 | 2023-03-29 | Joseph Vögele AG | Road finisher with pivotable material deflector |
-
1986
- 1986-11-14 JP JP27152286A patent/JPS63125704A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS63125704A (en) | 1988-05-28 |
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