JPH0484451U - - Google Patents
Info
- Publication number
- JPH0484451U JPH0484451U JP1990129343U JP12934390U JPH0484451U JP H0484451 U JPH0484451 U JP H0484451U JP 1990129343 U JP1990129343 U JP 1990129343U JP 12934390 U JP12934390 U JP 12934390U JP H0484451 U JPH0484451 U JP H0484451U
- Authority
- JP
- Japan
- Prior art keywords
- hole
- boss
- inner diameter
- bushing
- right ends
- 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
- 239000000463 material Substances 0.000 claims 2
- 239000000956 alloy Substances 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)
- Component Parts Of Construction Machinery (AREA)
Description
第１図はこの考案にかかるブツシユをそなえた
ピン結合部の要部断面図、第２図はこの考案にか
かる請求項第１項のブツシユの断面図、第３図は
この考案にかかる請求項第２項のブツシユの断面
図、第４図は油圧シヨベルの要部断面図、第５図
は第４図のＡ−Ａより見た断面図である。
７，７′……ピン結合部、８……ブラケツト、
９……ボス、１２，１８，２３……ブツシユ、１
３……ピン、１９，２４……ブツシユ本体、２０
Ｌ，２０Ｒ，２５……円筒、２１，２６……ブツ
ユ穴、２２，２２′，２７……段付穴部。
Fig. 1 is a cross-sectional view of a main part of a pin joint portion equipped with a bushing according to this invention, Fig. 2 is a sectional view of the bushing of claim 1 according to this invention, and Fig. 3 is a claim according to this invention. 4 is a sectional view of the main part of the hydraulic excavator, and FIG. 5 is a sectional view taken along line A--A in FIG. 4. 7, 7'...Pin joint part, 8...Bracket,
9...Boss, 12,18,23...Butsuyu, 1
3... Pin, 19, 24... Button body, 20
L, 20R, 25... Cylindrical, 21, 26... Butsuyu hole, 22, 22', 27... Stepped hole.
Claims (1)
シユを圧入嵌着し、そのボスをブラケツトに対し
ピンを介して回動自在に連結した建設機械のピン
結合部において、ブツシユ本体のブツシユ穴の左
右両端部にこのブツシユ穴の内径寸法より大径の
段付穴部を形成し、その段付穴部に内径寸法がブ
ツシユ穴の内径寸法と同寸の超硬合金材の円筒を
嵌着せしめて構成したことを特徴とするピン結合
部のブツシユ。 (2) ボスのボス穴の左右両端部にそれぞれブツ
シユを圧入嵌着し、そのボスをブラケツトに対し
ピンを介して回動自在に連結した建設機械のピン
結合部において、ブツシユ本体のブツシユ穴の左
右両端部のいずれか一方の端部にそのブツシユ穴
の内径寸法より大径の段付穴部を形成し、その段
付穴部に内径寸法がブツシユ穴の内径寸法と同寸
の超硬合金材の円筒を嵌着せしめて構成したこと
を特徴とするピン結合部のブツシユ。[Scope of Claim for Utility Model Registration] (1) A pin joint part of a construction machine in which a bush is press-fitted into both the left and right ends of a boss hole of a boss, and the boss is rotatably connected to a bracket via a pin. In this step, stepped holes with a larger diameter than the inner diameter of the bushing hole are formed at both left and right ends of the bushing hole in the bushing body, and a carbide material having an inner diameter that is the same as the inner diameter of the bushing hole is formed in the stepped hole. A pin joint bush characterized by being constructed by fitting a cylinder made of an alloy material. (2) At the pin joint part of a construction machine, in which a bush is press-fitted into both the left and right ends of the boss hole of the boss, and the boss is rotatably connected to the bracket via a pin, A stepped hole portion with a larger diameter than the inner diameter of the bushing hole is formed at one of the left and right ends, and a cemented carbide whose inner diameter is the same as the inner diameter of the bushing hole is formed in the stepped hole. A pin joint bush characterized by being constructed by fitting a cylinder of material into it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990129343U JPH0484451U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990129343U JPH0484451U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0484451U true JPH0484451U (en) | 1992-07-22 |
Family
ID=31876748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990129343U Pending JPH0484451U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0484451U (en) |
-
1990
- 1990-11-30 JP JP1990129343U patent/JPH0484451U/ja active Pending