JPS63121663U - - Google Patents
Info
- Publication number
- JPS63121663U JPS63121663U JP1987012926U JP1292687U JPS63121663U JP S63121663 U JPS63121663 U JP S63121663U JP 1987012926 U JP1987012926 U JP 1987012926U JP 1292687 U JP1292687 U JP 1292687U JP S63121663 U JPS63121663 U JP S63121663U
- Authority
- JP
- Japan
- Prior art keywords
- hole
- inner diameter
- pin
- insert
- boss hole
- 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
- 238000010276 construction Methods 0.000 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 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
- Pivots And Pivotal Connections (AREA)
- Shovels (AREA)
- Component Parts Of Construction Machinery (AREA)
Description
第１図はこの考案にかかるピン固定装置の断面
図、第２図は第１図のＢより見た側面図、第３図
はこの考案の実施例断面図、第４図はバツクホー
フロント先端部分の側面図、第５図は第４図のＡ
―Ａより見た従来技術ピン固定装置の断面図、第
６図は他の従来技術ピン固定装置の断面図、第７
図は第６図の実施例断面図である。
１……アーム、２……作業機具、２′，２″…
…バケツト、３，３′……ピン、１１……ピン、
１３……割りブツシユ、２３……つば付割りブツ
シユ、２５……割りブツシユ、３０……角付ナツ
ト。
Fig. 1 is a sectional view of the pin fixing device according to this invention, Fig. 2 is a side view seen from B in Fig. 1, Fig. 3 is a sectional view of an embodiment of this invention, and Fig. 4 is the tip of the front end of the baghoe. Side view of the part, Figure 5 is A of Figure 4
- A cross-sectional view of the prior art pin fixing device seen from A, FIG. 6 is a cross-sectional view of another prior art pin fixing device, and FIG.
The figure is a sectional view of the embodiment of FIG. 6. 1...Arm, 2...Working equipment, 2', 2''...
...bucket, 3,3'...pin, 11...pin,
13...split bush, 23...split bush with brim, 25...split bush, 30...nut with horns.
Claims (1)
動自在に取付けた建設機械のフロントアタツチメ
ントにおいて、作業機具のピン固定用ブラケツト
の左側ボス穴に、内径穴の外側面側穴径が大径で
内側面側に向かつて小径となるようなテーパ穴部
を有するつば付割りブツシユを挿入し、また、上
記ブラケツトの右側ボス穴内径を上記左側ボス穴
内径よりも小径とし、その右側ボス穴に、内径穴
の内側面側穴径が大径で外側面側に向かつて小径
となるようなテーパ穴部を有する割りブツシユを
挿入し、一方、作業機具およびアーム貫通用ピン
の頭部側および先端部側にそれぞれ大小の円錐形
状部を設け、その大きさを作業機具用ブラケツト
の左側および右側ボス穴に挿入した割りブツシユ
のそれぞれテーパ穴部に嵌合可能とし、また、上
記ピン先端にねじ部を設け、上記ピンを作業機具
およびアームのそれぞれボス穴に嵌着したブツシ
ユに貫通させるとともに、ピン先端ねじ部に角（
つの）付ナツトを締付けて構成したことを特徴と
する建設機械のピン固定装置。 In the front attachment of construction machinery, on which booms, arms, work equipment, etc. are rotatably attached with pins, the left boss hole of the pin fixing bracket of the work equipment has a large diameter hole on the outer side of the inner diameter hole. Insert a split bushing with a flange that has a tapered hole that becomes smaller toward the inner side, and make the inner diameter of the right boss hole of the bracket smaller than the inner diameter of the left boss hole, and insert into the right boss hole, Insert a split bushing that has a tapered hole part such that the inner diameter of the inner diameter hole is large and becomes smaller towards the outer surface, while the head and tip of the pin for penetrating the work tool and arm are inserted. Large and small conical parts are provided on each side, and the sizes are such that they can be fitted into the respective tapered holes of split bushings inserted into the left and right boss holes of the work equipment bracket, and a threaded part is provided at the tip of the pin. The above-mentioned pin is passed through the bushing fitted into the boss hole of the working tool and the arm, respectively, and a corner (
A pin fixing device for construction machinery, characterized in that it is configured by tightening two (2) nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987012926U JPS63121663U (en) | 1987-01-30 | 1987-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987012926U JPS63121663U (en) | 1987-01-30 | 1987-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63121663U true JPS63121663U (en) | 1988-08-08 |
Family
ID=30801510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987012926U Pending JPS63121663U (en) | 1987-01-30 | 1987-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63121663U (en) |
-
1987
- 1987-01-30 JP JP1987012926U patent/JPS63121663U/ja active Pending
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