JP3330271B2 - Joining structure of member receiving guide in truck frame for construction machinery - Google Patents
Joining structure of member receiving guide in truck frame for construction machineryInfo
- Publication number
- JP3330271B2 JP3330271B2 JP32126395A JP32126395A JP3330271B2 JP 3330271 B2 JP3330271 B2 JP 3330271B2 JP 32126395 A JP32126395 A JP 32126395A JP 32126395 A JP32126395 A JP 32126395A JP 3330271 B2 JP3330271 B2 JP 3330271B2
- Authority
- JP
- Japan
- Prior art keywords
- receiving guide
- member receiving
- track frame
- frame
- truck frame
- 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 - Fee Related
Links
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、建設機械のトラ
ックフレーム内面に接合される部材受けガイド、例えば
アイドラ装置用アジャスタ受けガイドの接合構造に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining structure of a member receiving guide joined to an inner surface of a track frame of a construction machine, for example, an adjuster receiving guide for an idler device.
【０００２】[0002]
【従来の技術】図３に示す油圧ショベルに代表される建
設機械の走行部４のベースフレームは、一般に図４及び
図５に示すように、走行部４のベースとなるカーボディ
５と、クローラ６が周設されるトラックフレーム１とか
らなり、カーボディ５はその脚部２がトラックフレーム
１の外面において溶接等により接合される。2. Description of the Related Art As shown in FIGS. 4 and 5, a base frame of a traveling section 4 of a construction machine typified by a hydraulic shovel shown in FIG. 3 generally includes a car body 5 serving as a base of the traveling section 4 and a crawler. The car body 5 has legs 2 joined to the outer surface of the track frame 1 by welding or the like.
【０００３】そしてトラックフレーム１の前後端には駆
動輪７や遊動輪８が配置されるが、それらの装置の周辺
機器の組立を容易にするため、トラックフレーム１内に
はそれら器機を含めた種々の部材受けガイドが接合され
ている。例えば、遊動輪８側のトラックフレーム１内に
は、図５に示すようにアイドルホイール81、テンション
ヨーク82、アジャスタシリンダ83等よりなるアイドラ装
置80が配置されるので、それら部材の組立を容易にする
ために、図６に示すような部材受けガイド３がトラック
フレーム１内面に接合されている。また、部材受けガイ
ド３の長方向両端部も、同図(a)に示すようにアイドラ
サポート板84と補強板９との双方に当接しつつ接合され
ている。[0003] Driving wheels 7 and idle wheels 8 are arranged at the front and rear ends of the track frame 1, however, in order to facilitate the assembly of peripheral devices for these devices, these devices are included in the track frame 1. Various member receiving guides are joined. For example, an idler device 80 including an idle wheel 81, a tension yoke 82, an adjuster cylinder 83 and the like is arranged in the track frame 1 on the idler wheel 8 side as shown in FIG. For this purpose, a member receiving guide 3 as shown in FIG. 6 is joined to the inner surface of the track frame 1. Further, both ends in the longitudinal direction of the member receiving guide 3 are joined while being in contact with both the idler support plate 84 and the reinforcing plate 9 as shown in FIG.
【０００４】[0004]
【発明が解決しようとする課題】ところで、走行部４の
ベースフレームにおいて構造的に強度を確保する必要が
あることは言うまでもないが、そのためにはトラックフ
レーム１及びカーボディ５の幅・厚さ寸法や素材の選択
が重要となる。しかし最近では、製造容易化の要請か
ら、ベースフレーム自体の余裕率が少なくなってきてい
るのが実状である。By the way, it is needless to say that it is necessary to secure structural strength in the base frame of the traveling section 4, but for that purpose, the width and thickness dimensions of the track frame 1 and the car body 5 are required. And the choice of material is important. However, recently, the margin of the base frame itself has been reduced due to a demand for easy manufacturing.
【０００５】一方、前記アジャスタ受けガイドのような
トラックフレーム１内の部材受けガイド３は、その部材
の組立時のみ利用され、もちろんベースフレームの構造
的強度を確保するものとしてはなんら考慮されていない
ため、板厚・幅も小さいサイズのものである。他方、そ
のような部材受けガイド３が多数あれば、走行部４のフ
レームにおいて接合すべき部材点数が増えるということ
であり、製造工程が増加するものとなって近時の傾向に
はなじまない。On the other hand, the member receiving guide 3 in the track frame 1, such as the adjuster receiving guide, is used only when assembling the member, and is not considered at all as ensuring the structural strength of the base frame. Therefore, the plate thickness and width are also small. On the other hand, if there are a large number of such member receiving guides 3, the number of members to be joined in the frame of the traveling portion 4 will increase, and the number of manufacturing steps will increase, which does not fit the recent trend.
【０００６】この発明は、以上のような走行部のフレー
ム構造における実状に鑑みて創案されたもので、所定部
材の組立以外では役立たなかったトラックフレーム内の
部材受けガイドを有効に利用して走行部のフレーム強度
を確保することのできる技術を提供しようとするもので
ある。The present invention has been made in view of the above-described actual condition of the frame structure of the traveling portion, and travels by effectively utilizing a member receiving guide in a track frame which has been useless except for assembling predetermined members. It is an object of the present invention to provide a technique capable of securing the frame strength of a part.
【０００７】[0007]
【課題を解決するための手段】このため、本発明は、建
設機械のトラックフレーム内面に接合される部材受けガ
イドの接合構造であって、部材受けガイドの機体側の接
合位置を、トラックフレームの機体側外面に接合される
カーボディ脚部のその接合位置に、トラックフレームを
挟んで一致させたことを特徴とする。SUMMARY OF THE INVENTION Therefore, the present invention relates to a joining structure of a member receiving guide joined to the inner surface of a track frame of a construction machine, wherein the joining position of the member receiving guide on the body side is changed. It is characterized in that the joint position of the car body leg portion joined to the outer surface on the body side is matched with the track frame interposed therebetween.
【０００８】図６に示すような従来の部材受けガイド３
におけるトラックフレーム１機体側の接合構造では、カ
ーボディ脚部２と部材受けガイド３との接合位置が離れ
ているので、力の流れがスムーズでなく、また応力集中
等によってトラックフレーム１のクリティカルなａ部の
応力が高くなり、その間の中央部の剛性が弱体化する。A conventional member receiving guide 3 as shown in FIG.
In the joint structure on the body side of the track frame 1, the joint position between the car body leg 2 and the member receiving guide 3 is far apart, so that the flow of force is not smooth, and the track frame 1 is critical due to stress concentration or the like. The stress in the portion a is increased, and the rigidity of the central portion therebetween is weakened.
【０００９】これに対し本発明の構造では、部材受けガ
イド３の接合位置を、カーボディ脚部２の接合位置に一
致させているので、ａ部の剛性が向上し、また力の流れ
がスムーズでその部分の応力が低減する。すなわち、本
発明の構造によれば、その接合位置を改善させることの
みでトラックフレームの強度が確保できることになり、
しかも従来強度確保にはあまり意味のなかった部材受け
ガイドを補強部材として積極的に利用できるものとな
る。もちろん、走行部のベースフレーム自体の板厚・幅
等を何ら変える必要がないので、製造工程の容易化とい
う近時の傾向にも沿うものとなる。On the other hand, in the structure of the present invention, the joining position of the member receiving guide 3 is matched with the joining position of the car body leg 2, so that the rigidity of the portion a is improved and the flow of force is smooth. As a result, the stress at that portion is reduced. That is, according to the structure of the present invention, the strength of the track frame can be secured only by improving the joining position,
In addition, the member receiving guide, which was not meaningful for securing the strength in the past, can be positively used as the reinforcing member. Of course, there is no need to change the plate thickness, width, etc. of the base frame itself of the running part, so that it follows the recent tendency to simplify the manufacturing process.
【００１０】また従来の部材受けガイドは上述のよう
に、板厚・幅が小さいサイズのものが用いられていたの
で、本発明における部材受けガイドとして、トラックフ
レーム板以上の厚さの板材を用いれば、走行部のベース
フレーム、特にトラックフレームの強度はさらに確保で
きる。一方その分重量は増加することになるが、部材受
けガイドはトラックフレーム内の一部に部分的に接合さ
れる部材であり、フレーム自体の板厚・幅等のサイズを
大きくする場合と比較すれば、重量の増加は大幅に抑え
ることができるものとなる。As described above, the conventional member receiving guide has a small thickness and width, so that a plate member having a thickness greater than that of the track frame plate is used as the member receiving guide in the present invention. If this is the case, the strength of the base frame of the traveling part, particularly the track frame, can be further secured. On the other hand, the weight is increased by that amount, but the member receiving guide is a member that is partially joined to a part of the track frame, and compared with the case where the size of the frame itself such as plate thickness and width is increased. If this is the case, the increase in weight can be greatly suppressed.
【００１１】[0011]
【発明の実施の形態】本発明の実施形態例を図面に基づ
き説明する。以下に示す形態例は、いずれも図３に示す
ような建設機械に適用されるアイドラ装置の部材、特に
アジャスタ受けガイドの例である。図中、１はトラック
フレーム、２はカーボディ脚部、３は受けガイドを各示
す。Embodiments of the present invention will be described with reference to the drawings. Each of the following embodiments is an example of a member of an idler device applied to a construction machine as shown in FIG. 3, particularly an adjuster receiving guide. In the drawing, 1 indicates a track frame, 2 indicates a car body leg, and 3 indicates a receiving guide.
【００１２】図１は受けガイド3aの端部幅がトラックフ
レーム１の内幅と同一寸法よりなるものが接合される形
態例である。そして図１のうち、トラックフレーム１の
機体側外面に対するカーボディ脚部底板20の溶接位置
が、同図(a)ではトラックフレーム１高さの略中間部に
位置する構造に適用される例、同図(b)ではトラックフ
レーム１の底部に近い箇所に位置する構造に適用される
例をそれぞれ示している。FIG. 1 shows an embodiment in which a receiving guide 3a whose end width is the same as the inner width of the track frame 1 is joined. In FIG. 1, an example in which the welding position of the car body leg bottom plate 20 to the outer surface of the truck frame 1 on the fuselage side is applied to a structure that is located substantially at the middle of the height of the truck frame 1 in FIG. FIG. 2B shows an example applied to a structure located at a position near the bottom of the track frame 1.
【００１３】そしていずれの形態例でも、受けガイド3a
の機体側端部を、トラックフレーム１の機体側外面に溶
接されるカーボディ脚部底板20のその溶接位置に、トラ
ックフレーム１を挟んで一致させ、その位置で溶接して
いる（図中Ａ部）。なお、前記受けガイド3aはトラック
フレーム１板と同一の厚さの鋼板が用いられている。In any of the embodiments, the receiving guide 3a
Is welded to the welding position of the car body leg bottom plate 20 to be welded to the outer surface of the truck frame 1 with the truck frame 1 interposed therebetween and welded at that position (A in the figure). Department). The receiving guide 3a is made of a steel plate having the same thickness as one track frame plate.
【００１４】図２は、受けガイド3bが前記トラックフレ
ーム１の機体側及び機体外側の各内面に対し別部材とし
てそれぞれ溶接される形態例である。この例の部材受け
ガイド3bは、いずれのトッラクフレーム１内面に溶接さ
れるものも、図６(a)に示すものと同様に、その長方向
両端部はアイドラサポート板（図示なし）と補強板（図
示なし）との双方に当接しつつ溶接されている。また、
この形態の受けガイド3aもトラックフレーム１板と同一
の厚さの鋼板が用いられている。FIG. 2 shows an embodiment in which the receiving guide 3b is welded as a separate member to each of the inner surfaces of the track frame 1 on the body side and the outside of the body. The member receiving guide 3b of this example, which is welded to the inner surface of any of the truck frames 1, has both ends in the longitudinal direction at its both ends in the same manner as those shown in FIG. (Not shown). Also,
The receiving guide 3a of this embodiment also uses a steel plate having the same thickness as one track frame plate.
【００１５】以上の実施形態例では、受けガイド3a,3b
の溶接位置を、カーボディ脚部底板20の溶接位置に一致
させているので、それら溶接位置に距離があった従来例
と比較して、その一致するトラックフレーム１部分の剛
性が向上し、その部分の応力が低減する。すなわち、こ
れら形態例では、その溶接位置を改善させることのみで
トラックフレーム１の強度が確保できることになり、従
来強度確保にはあまり意味のなかった受けガイド３をト
ラックフレーム１の補強部材として積極的に利用できる
ものとなっている。しかも、従来の受けガイド３は上述
のように、板厚・幅が小さいサイズのものが用いられて
いたのに対し、上記形態例では、トラックフレーム１板
と同じ厚さの板材が用いられているので、その点でもト
ラックフレーム１の強度はさらに向上するものとなって
いる。なお、板厚が従来より厚くなることによってその
分重量は増加することにもなるが、受けガイド３はトラ
ックフレーム１の一部に部分的に接合される部材であ
り、フレーム自体の板厚・幅等のサイズを大きくする場
合と比較すれば、重量の増加は大幅に抑えることがで
き、不必要な重量の増加を防止できるものとなってい
る。In the above embodiment, the receiving guides 3a, 3b
Is made to coincide with the welding position of the car body leg bottom plate 20, the rigidity of the corresponding track frame 1 is improved as compared with the conventional example in which the welding positions have a distance, and the Partial stress is reduced. That is, in these embodiments, the strength of the track frame 1 can be secured only by improving the welding position, and the receiving guide 3 which has not been meaningful for securing the strength in the past is actively used as a reinforcing member of the track frame 1. It can be used for. Moreover, as described above, the conventional receiving guide 3 has a small thickness and width, whereas the above-described embodiment uses a plate material having the same thickness as one track frame. Therefore, the strength of the track frame 1 is further improved in this respect. Although the weight increases as the thickness of the track becomes larger than before, the receiving guide 3 is a member that is partially joined to a part of the track frame 1, and the thickness of the frame itself is reduced. Compared to the case where the size such as the width is increased, the increase in weight can be greatly suppressed, and unnecessary increase in weight can be prevented.
【００１６】[0016]
【実施例】上記実施形態の適用例として、アイドラ装置
のアジャスト受けガイド３の例のみを示したが、もちろ
んそれに限定されるものではなく、トラックフレーム１
内面に接合される部材受けガイド３であればどのような
ものでも本発明は適用可能である。また、適用される建
設機械についても、図３に示す油圧ショベルに限定され
るものでなく、走行部のベースとなるカーボディの脚部
と、駆動体を備えたトラックフレームとが接合される構
造を有する建設機械であれば適用可能であることは言う
までもない。DESCRIPTION OF THE PREFERRED EMBODIMENTS As an application example of the above embodiment, only an example of the adjustment receiving guide 3 of the idler device has been described.
The present invention is applicable to any member receiving guide 3 that is joined to the inner surface. Further, the construction machine to be applied is not limited to the hydraulic excavator shown in FIG. 3, and a structure in which a leg of a car body serving as a base of a traveling unit and a track frame having a driving body are joined. It is needless to say that the present invention can be applied to any construction machine having
【００１７】[0017]
【発明の効果】以上説明したように、本発明に係る部材
受けガイド接合構造によれば、ベースフレーム自体で強
度を確保することなく、しかも所定部材の組立以外では
役立たなかったトラックフレーム内の部材受けガイドを
有効に利用して走行部のベースフレーム強度が確保でき
るといった顕著な効果が得られるものとなる。As described above, according to the joining structure of the member receiving guides according to the present invention, the strength of the base frame itself is not secured, and furthermore, the members in the track frame which are not useful except for assembling the predetermined members. A remarkable effect is obtained such that the base frame strength of the traveling portion can be secured by effectively using the receiving guide.
【図１】本発明の具体的実施形態例を示す部分断面図で
あり、(a)は第１形態例、(b)は第２形態例を示す。FIG. 1 is a partial cross-sectional view showing a specific embodiment of the present invention, wherein (a) shows a first embodiment and (b) shows a second embodiment.
【図２】本発明の他の実施形態例を示す部分断面図であ
る。FIG. 2 is a partial sectional view showing another embodiment of the present invention.
【図３】一般的な建設機械の全体を示す概要図である。FIG. 3 is a schematic view showing the whole of a general construction machine.
【図４】図３中の走行部の概要図である。FIG. 4 is a schematic diagram of a traveling unit in FIG.
【図５】図４中の走行部のベースフレームを示した説明
図である。FIG. 5 is an explanatory diagram showing a base frame of a traveling unit in FIG. 4;
【図６】カーボディ脚部とトラックフレームとの従来の
接合構造を示すもので、(a)は部分側面図、(b)はカーボ
ディ脚部底板の溶接位置がトラックフレーム高さの上部
側に位置する構造に適用された例の部分正面断面図、
(c)はカーボディ脚部底板の溶接位置がトラックフレー
ム高さの略中間部に位置する構造に適用された例の部分
正面断面図である。FIGS. 6A and 6B show a conventional joint structure between a car body leg and a track frame, wherein FIG. 6A is a partial side view, and FIG. Partial front sectional view of an example applied to the structure located in
(c) is a partial front cross-sectional view of an example applied to a structure in which the welding position of the car body leg bottom plate is located substantially at the middle of the track frame height.
１ トラックフレーム ２ カーボディ脚部 ３ 部材受けガイド ４ 走行部 ５ カーボディ ６ クローラ 80 アイドラ装置 DESCRIPTION OF SYMBOLS 1 Track frame 2 Car body leg 3 Member receiving guide 4 Running part 5 Car body 6 Crawler 80 Idler device
Claims (2)
される部材受けガイドの接合構造であって、部材受けガ
イドの機体側の接合位置を、トラックフレームの機体側
外面に接合されるカーボディ脚部のその接合位置に、ト
ラックフレームを挟んで一致させたことを特徴とする建
設機械用トラックフレーム内の部材受けガイドの接合構
造。1. A joining structure of a member receiving guide joined to an inner surface of a track frame of a construction machine, wherein a joining position of the member receiving guide on a body side is set to a car body leg joined to an outer surface of the truck frame on a body side. A joining structure of a member receiving guide in a truck frame for a construction machine, wherein the joining position is matched with the joining position of the truck frame.
内の部材受けガイド接合構造において、前記部材受けガ
イドとして、前記トラックフレーム板以上の厚さの板材
を用いたことを特徴とする請求項１の建設機械用トラッ
クフレーム内の部材受けガイド接合構造。2. The member receiving guide joining structure in a construction machine truck frame according to claim 1, wherein a plate member having a thickness equal to or greater than the track frame plate is used as the member receiving guide. Of a member receiving guide in a truck frame for construction equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32126395A JP3330271B2 (en) | 1995-11-16 | 1995-11-16 | Joining structure of member receiving guide in truck frame for construction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32126395A JP3330271B2 (en) | 1995-11-16 | 1995-11-16 | Joining structure of member receiving guide in truck frame for construction machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09144064A JPH09144064A (en) | 1997-06-03 |
| JP3330271B2 true JP3330271B2 (en) | 2002-09-30 |
Family
ID=18130631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32126395A Expired - Fee Related JP3330271B2 (en) | 1995-11-16 | 1995-11-16 | Joining structure of member receiving guide in truck frame for construction machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3330271B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0349164U (en) * | 1989-09-21 | 1991-05-13 | ||
| JPH0568783U (en) * | 1992-02-27 | 1993-09-17 | 新キャタピラー三菱株式会社 | Car body with T-shaped cross-section |
-
1995
- 1995-11-16 JP JP32126395A patent/JP3330271B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09144064A (en) | 1997-06-03 |
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