JPH06300033A - Locking and retaining device for connecting pin that connects inner member and outer member - Google Patents
Locking and retaining device for connecting pin that connects inner member and outer memberInfo
- Publication number
- JPH06300033A JPH06300033A JP5111148A JP11114893A JPH06300033A JP H06300033 A JPH06300033 A JP H06300033A JP 5111148 A JP5111148 A JP 5111148A JP 11114893 A JP11114893 A JP 11114893A JP H06300033 A JPH06300033 A JP H06300033A
- Authority
- JP
- Japan
- Prior art keywords
- connecting pin
- stopper
- rotation
- arm
- outer member
- 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.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 4
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2350/00—Machines or articles related to building
- F16C2350/26—Excavators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
(57)【要約】
【目的】 内側部材と外側部材とを連結する連結ピンの
回転および抜け出しを確実に防止するとともに、回り止
め用ストッパのへたりをなくす回り止め兼抜け止め装置
を提供する。
【構成】 内側部材のボス１と外側部材のブラケット２
Ａ、２Ｂとは、一端部に先細のテーパ形の回り止め用腕
３ａをそなえた連結ピン３により連結されている。ブラ
ケット２ａの外側面部には、台板８が溶接により固定さ
れており、台板８には回り止め用腕３ａの長手方向に摺
動させることができる可摺動ストッパ９がボルト５によ
り固定されている。回り止め用腕３ａの先端部は、可摺
動ストッパ９に設けたテーパ溝にはめ込まれている。
(57) [Abstract] [PROBLEMS] To provide a rotation preventing and retaining device that surely prevents a connecting pin that connects an inner member and an outer member from rotating and coming off, and eliminates the fatigue of a stopper for preventing rotation. [Structure] Boss 1 of inner member and bracket 2 of outer member
A and 2B are connected to each other by a connecting pin 3 having a tapered taper detent arm 3a at one end. A base plate 8 is fixed to the outer surface of the bracket 2a by welding, and a slidable stopper 9 capable of sliding in the longitudinal direction of the rotation stopping arm 3a is fixed to the base plate 8 with bolts 5. ing. The tip portion of the anti-rotation arm 3 a is fitted in a taper groove provided in the slidable stopper 9.
Description
【０００１】[0001]
【産業上の利用分野】この発明は、たとえば、油圧ショ
ベルの作業機を構成する各部材を互いに連結する連結ピ
ンの回り止め兼抜け止め装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing rotation and removal of a connecting pin for connecting members forming a working machine of a hydraulic excavator to each other.
【０００２】[0002]
【従来の技術】つぎに、従来の連結ピンの回り止め兼抜
け止め装置の一例を図７ないし図１０を参照して説明す
る。2. Description of the Related Art Next, an example of a conventional locking / unlocking device for connecting pins will be described with reference to FIGS.
【０００３】内側部材のボス１と外側部材のブラケット
２Ａ、２Ｂとのピン穴には、連結ピン３が挿入されてい
る。連結ピン３の一端部には、先細のテーパ形の回り止
め用腕３ａが一体に設けられている。ブラケット２Ａの
外側面部には、テーパ溝４ａとねじ穴４ｂとを設けたス
トッパ４が溶接により固定されており、そのテーパ溝４
ａには回り止め用腕３ａの先端部がはめ込まれている。
回り止め用腕３ａの先端部の外側面は、ストッパ４にボ
ルト５により固定した抜け止め板６により押えられてい
る。ボルト５は抜け止め板６のボルト穴を通してストッ
パ４のねじ穴４ｂにねじ込まれている。ボルト５の頭部
と抜け止め板６との間にはばね座７が取り付けられてい
る。連結ピン３の回転および抜け出しは、ストッパ４、
抜け止め板６により防止される。A connecting pin 3 is inserted into the pin holes of the inner member boss 1 and the outer member brackets 2A and 2B. A tapered taper detent arm 3 a is integrally provided at one end of the connecting pin 3. A stopper 4 having a taper groove 4a and a screw hole 4b is fixed to the outer surface of the bracket 2A by welding.
The tip of the anti-rotation arm 3a is fitted in a.
The outer side surface of the tip end portion of the anti-rotation arm 3a is pressed by a retaining plate 6 fixed to a stopper 4 with a bolt 5. The bolt 5 is screwed into the screw hole 4b of the stopper 4 through the bolt hole of the retaining plate 6. A spring seat 7 is attached between the head of the bolt 5 and the retaining plate 6. Rotate and pull out the connecting pin 3 with the stopper 4,
It is prevented by the retaining plate 6.
【０００４】[0004]
【発明が解決しようとする課題】このような連結ピンの
回り止め兼抜け止め装置では、回り止め用のストッパ４
の溶接は、ブラケット２Ａ、２Ｂのピン穴の機械加工を
する前に行なうので、材料でのピン穴中心からの製缶公
差で寸法を出すために、連結ピン３を挿入した場合、図
１０に示すように回り止め用腕３ａとテーパ溝４ａとの
間にかなりのすき間Ｇが生じる。このすき間Ｇがある
と、油圧ショベルの作業時に、連結ピン３が回動し、回
り止め用腕３ａでストッパ４がたたかれる。この動作が
くり返されると、回り止め用腕３ａが当るテーパ溝４ａ
の面がへたってしまい、連結ピン３の回動量が大きくな
っていく。In such a device for preventing the connecting pin from rotating and coming off, the stopper 4 for preventing rotation is provided.
Welding is performed before machining the pin holes of the brackets 2A and 2B. Therefore, when the connecting pin 3 is inserted in order to measure the can manufacturing tolerance from the center of the pin hole in the material, FIG. As shown, a considerable gap G is created between the detent arm 3a and the taper groove 4a. If there is this gap G, the connecting pin 3 rotates during the work of the hydraulic excavator, and the stopper 4 is struck by the anti-rotation arm 3a. When this operation is repeated, the taper groove 4a with which the anti-rotation arm 3a abuts
The surface of is depressed and the amount of rotation of the connecting pin 3 increases.
【０００５】この発明は、前記にかんがみてなされたも
ので、連結ピンの回転および抜け出しを確実に防止する
ことができるとともに、回り止め用ストッパのへたりを
なくす連結ピンの回り止め兼抜け止め装置を提供するこ
とを目的とする。The present invention has been made in view of the above, and it is possible to reliably prevent the connecting pin from rotating and slipping out, and to prevent the settling stopper stopper from slipping and preventing the connecting pin from rotating. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】この発明は、回り止め用
腕側の外側部材に、回り止め用腕の先端部を挿入させる
テーパ溝をそなえた可摺動ストッパを、回り止め用腕の
長手方向に摺動できるように設置し、可摺動ストッパを
ボルトにより外側部材に対して固定するように構成した
ことを特徴とする。SUMMARY OF THE INVENTION According to the present invention, a slidable stopper having a taper groove for inserting a tip end portion of a rotation preventing arm is provided in an outer member on the side of the rotation preventing arm. It is characterized in that it is installed so as to be slidable in any direction, and the slidable stopper is fixed to the outer member with a bolt.
【０００７】[0007]
【作用】可摺動ストッパを回り止め用腕側に摺動させて
固定することにより、回り止め用腕の先端部と可摺動ス
トッパのテーパ溝との間のすき間をなくすことができ
る。By sliding and fixing the slidable stopper on the anti-rotation arm side, it is possible to eliminate the gap between the tip end portion of the anti-rotation arm and the taper groove of the slidable stopper.
【０００８】[0008]
【実施例】以下、この発明の一実施例を図１ないし図６
により説明する。図１および図２において、図７ないし
図９と同じ部材は同じ符号で示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be described. 1 and 2, the same members as those in FIGS. 7 to 9 are denoted by the same reference numerals.
【０００９】ブラケット２Ａの外側面部には、ねじ穴８
ａを設けた台板８が溶接により固定されている。台板８
に取り付ける可摺動ストッパ９は、図３に示すように平
面形状が矩形をしており、その中間の突起部には、図３
ないし図５に示すように、回り止め用腕３ａの先端部を
はめ込ませるテーパ溝９ａが設けられ、端部には台板８
のねじ穴８ａに合致させる長穴９ｂが設けられている。
図１および図２に示すように、可摺動ストッパ９は、長
穴９ｂを通して台板８のねじ穴８ａにねじ込んだボルト
５により台板８に固定されている。ボルト５の頭部と可
摺動ストッパ９との間には、ばね座７と平座１０とが取
り付けられている。回り止め用腕３ａの先端部は、可摺
動ストッパ９のテーパ溝９ａにはめ込まれている。可摺
動ストッパ９を固定する際には、回り止め用腕３ａの先
端部とテーパ溝９ａとの当り面にすき間が生じないよう
に可摺動ストッパ９を回り止め用腕３ａ側に十分摺動さ
せる。そしてボルト５を締め付ける。A screw hole 8 is formed on the outer surface of the bracket 2A.
The base plate 8 provided with a is fixed by welding. Base plate 8
As shown in FIG. 3, the slidable stopper 9 attached to the has a rectangular planar shape, and the protrusion in the middle has a rectangular shape as shown in FIG.
As shown in FIG. 5, there is provided a taper groove 9a into which the tip of the anti-rotation arm 3a is fitted, and the base plate 8 is provided at the end.
An elongated hole 9b is provided so as to match the screw hole 8a.
As shown in FIGS. 1 and 2, the slidable stopper 9 is fixed to the base plate 8 by bolts 5 screwed into the screw holes 8a of the base plate 8 through the elongated holes 9b. A spring seat 7 and a flat seat 10 are attached between the head of the bolt 5 and the slidable stopper 9. The tip end of the anti-rotation arm 3 a is fitted in the taper groove 9 a of the slidable stopper 9. When fixing the slidable stopper 9, the slidable stopper 9 is sufficiently slid to the anti-rotation arm 3a side so that no gap is created in the contact surface between the tip end of the anti-rotation arm 3a and the tapered groove 9a. To move. Then, tighten the bolt 5.
【００１０】連結ピン３の回転および抜け出しは、可摺
動ストッパ９および回り止め用腕３ａにより防止され
る。Rotation and slip-out of the connecting pin 3 are prevented by the slidable stopper 9 and the detent arm 3a.
【００１１】[0011]
【発明の効果】以上説明したこの発明によれば、回り止
め用腕と可摺動ストッパのテーパ溝との当たり面間のす
き間を容易になくし、連結ピンの回転および抜け出しを
確実に防止することができるとともに、ストッパのへた
りを除くことができる。According to the present invention described above, it is possible to easily eliminate the gap between the contact surfaces of the anti-rotation arm and the taper groove of the slidable stopper, and reliably prevent the connecting pin from rotating and coming off. In addition to being able to do so, the settling of the stopper can be removed.
【図１】この発明の一実施例を示す断面平面図、FIG. 1 is a sectional plan view showing an embodiment of the present invention,
【図２】図１のＡ−Ａ線から見た図、FIG. 2 is a view seen from the line AA of FIG.
【図３】図１および図２における可摺動ストッパを示す
拡大平面図、FIG. 3 is an enlarged plan view showing a slidable stopper in FIGS. 1 and 2.
【図４】図３の左側面図、4 is a left side view of FIG. 3,
【図５】図３の右側面図、5 is a right side view of FIG. 3,
【図６】図３の正面図、6 is a front view of FIG.
【図７】従来の内側部材と外側部材とを連結する連結ピ
ンの回り止め兼抜け止め装置を示す断面平面図、FIG. 7 is a cross-sectional plan view showing a conventional locking and retaining device for a connecting pin that connects an inner member and an outer member,
【図８】図７のＢ−Ｂ線から見た図、FIG. 8 is a view seen from the line BB of FIG. 7,
【図９】図７のブラケットとストッパとを示す側面図、9 is a side view showing the bracket and the stopper of FIG. 7,
【図１０】図８のストッパと回り止め用腕とを示す拡大
図である。FIG. 10 is an enlarged view showing the stopper and the detent arm of FIG.
１ ボス ２Ａ ブラケット ２Ｂ ブラケット ３ 連結ピン ３ａ 回り止め用腕 ５ ボルト ７ ばね座 ８ 台板 ８ａ ねじ穴 ９ 可摺動ストッパ ９ａ テーパ溝 ９ｂ 長穴 １０ 平座 1 Boss 2A Bracket 2B Bracket 3 Connecting Pin 3a Non-rotating Arm 5 Bolt 7 Spring Seat 8 Base Plate 8a Screw Hole 9 Slidable Stopper 9a Tapered Groove 9b Long Hole 10 Flat Seat
Claims (1)
に先細のテーパ形の回り止め用腕をそなえた連結ピンを
挿入して両部材を互いに連結するものにおいて、回り止
め用腕側の外側部材に、回り止め用腕の先端部を挿入さ
せるテーパ溝をそなえた可摺動ストッパを、回り止め用
腕の長手方向に摺動できるように設置し、可摺動ストッ
パをボルトにより外側部材に対して固定するように構成
したことを特徴とする連結ピンの回り止め兼抜け止め装
置。1. An anti-rotation arm side in which a coupling pin having a tapered anti-rotation arm at one end is inserted into a pin hole of an inner member and an outer member to connect both members to each other. Install a slidable stopper with a taper groove for inserting the tip of the anti-rotation arm on the outer member of the so that it can slide in the longitudinal direction of the anti-rotation arm. A locking and retaining device for a connecting pin, which is configured to be fixed to a member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5111148A JPH06300033A (en) | 1993-04-15 | 1993-04-15 | Locking and retaining device for connecting pin that connects inner member and outer member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5111148A JPH06300033A (en) | 1993-04-15 | 1993-04-15 | Locking and retaining device for connecting pin that connects inner member and outer member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06300033A true JPH06300033A (en) | 1994-10-25 |
Family
ID=14553684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5111148A Pending JPH06300033A (en) | 1993-04-15 | 1993-04-15 | Locking and retaining device for connecting pin that connects inner member and outer member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06300033A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019050056A1 (en) * | 2017-09-05 | 2019-03-14 | Volvo Construction Equipment Ab | Yoke assembly for construction machine |
| WO2019235334A1 (en) * | 2018-06-05 | 2019-12-12 | 株式会社クボタ | Work machine |
| JP2019210706A (en) * | 2018-06-05 | 2019-12-12 | 株式会社クボタ | Work machine |
| WO2020188935A1 (en) * | 2019-03-15 | 2020-09-24 | コベルコ建機株式会社 | Construction machine boom mount device |
| JP2021011922A (en) * | 2019-07-08 | 2021-02-04 | コベルコ建機株式会社 | Pin detent structure |
| US20230295895A1 (en) * | 2022-03-18 | 2023-09-21 | Caterpillar Global Mining Llc | Pivoting pinned connection for a rope shovel bucket |
-
1993
- 1993-04-15 JP JP5111148A patent/JPH06300033A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019050056A1 (en) * | 2017-09-05 | 2019-03-14 | Volvo Construction Equipment Ab | Yoke assembly for construction machine |
| WO2019235334A1 (en) * | 2018-06-05 | 2019-12-12 | 株式会社クボタ | Work machine |
| JP2019210706A (en) * | 2018-06-05 | 2019-12-12 | 株式会社クボタ | Work machine |
| US12054908B2 (en) | 2018-06-05 | 2024-08-06 | Kubota Corporation | Working machine |
| WO2020188935A1 (en) * | 2019-03-15 | 2020-09-24 | コベルコ建機株式会社 | Construction machine boom mount device |
| US12146290B2 (en) | 2019-03-15 | 2024-11-19 | Kobelco Construction Machinery Co., Ltd. | Construction machine boom mount device |
| JP2021011922A (en) * | 2019-07-08 | 2021-02-04 | コベルコ建機株式会社 | Pin detent structure |
| US20230295895A1 (en) * | 2022-03-18 | 2023-09-21 | Caterpillar Global Mining Llc | Pivoting pinned connection for a rope shovel bucket |
| US12497750B2 (en) * | 2022-03-18 | 2025-12-16 | Caterpillar Global Mining Llc | Pivoting pinned connection for a rope shovel bucket |
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