JPH0262948U - - Google Patents

Info

Publication number
JPH0262948U
JPH0262948U JP1988139590U JP13959088U JPH0262948U JP H0262948 U JPH0262948 U JP H0262948U JP 1988139590 U JP1988139590 U JP 1988139590U JP 13959088 U JP13959088 U JP 13959088U JP H0262948 U JPH0262948 U JP H0262948U
Authority
JP
Japan
Prior art keywords
pivot
bearing structure
axial direction
bearing
working machine
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.)
Granted
Application number
JP1988139590U
Other languages
Japanese (ja)
Other versions
JP2539202Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988139590U priority Critical patent/JP2539202Y2/en
Publication of JPH0262948U publication Critical patent/JPH0262948U/ja
Application granted granted Critical
Publication of JP2539202Y2 publication Critical patent/JP2539202Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

  • Component Parts Of Construction Machinery (AREA)
  • Pivots And Pivotal Connections (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、この考案の連結部の軸受構造に係わ
る実施例の断面図、第２図は枢軸となるピン側の
内端部にスラストベアリングを用いた連結部軸受
構造の断面図、第３図はアームボス部側に左右う
一対のスラストベアリングを用いた連結部軸受構
造の断面図、第４図は油圧シヨベル作業機部分の
側面図、第５図はスリーブベアリングを用いた従
来の連結部軸受構造を示す断面図である。 １……軸受構造、２……ピン、２Ａ……ピス外
周面、４……アーム側スラストベアリング、５…
…ピン側スラストベアリング、７……シム、８…
…シール、９……ボルト、１０……フイツチング
、１１……グリース溜、１３……スリーブ、１５
……フランジ、２０……アームボス部、２１……
バケツトボス部、２１Ａ……貫通孔、２１Ｂ……
ボルトネジ孔。 Fig. 1 is a sectional view of an embodiment of the bearing structure of the connecting part of this invention, Fig. 2 is a sectional view of the bearing structure of the connecting part using a thrust bearing at the inner end on the pin side that becomes the pivot, and Fig. 3 is a sectional view of an embodiment of the bearing structure of the connecting part of this invention. The figure is a cross-sectional view of the joint bearing structure using a pair of left and right thrust bearings on the arm boss side, Figure 4 is a side view of the hydraulic excavator work equipment, and Figure 5 is a conventional joint bearing structure using sleeve bearings. FIG. 3 is a cross-sectional view showing the structure. 1...Bearing structure, 2...Pin, 2A...Pis outer circumferential surface, 4...Arm side thrust bearing, 5...
...Pin side thrust bearing, 7...Shim, 8...
... Seal, 9 ... Bolt, 10 ... Fitting, 11 ... Grease reservoir, 13 ... Sleeve, 15
...Flange, 20...Arm boss section, 21...
Bucket boss part, 21A... Through hole, 21B...
Bolt screw hole.

Claims (1)

【実用新案登録請求の範囲】 (1) 一方の連結部材の連結片を他方の連結部材
の左右一対のブラケツトで外側から挟み、両者を
貫通する枢軸で回転自在に連結してなる作業機用
部材の軸受構造において、 ブラケツトにそれぞれ固定されて対向する一対
の枢軸と連結片の孔との軸受面が、軸方向の中央
に向かい漸次小径に設定された対称のテーパ面か
らなつていると共に、該枢軸の長さを対向する枢
軸間に軸方向にスペースが空くように設定するこ
とを特徴とした作業機用部材の連結部の軸受構造
。 (2) 枢軸がシムを軸方向に介設してブラケツト
に固着されており、上記シムを取り除くことによ
り軸方向の先端側に枢軸を変位しうることを特徴
とした請求項１記載の作業機用部材の連結部の軸
受構造。 (3) 枢軸の先端部が同心小径の突軸に形成され
、該突軸に外周面が内側に向い漸次小径のテーパ
面に形成される枢軸側スラストベアリングが交換
可能に固着されてなることを特徴とする請求項１
記載の作業機用部材の連結部の軸受構造。 (4) 対向する枢軸のテーパ面を受ける連結片側
のスラストベアリングが、中央から外側に向かつ
て漸次大径になる対称の内周面を一体に形成して
いることを特徴とする請求項１記載の作業機用部
材の連結部の軸受構造。[Claims for Utility Model Registration] (1) A work machine member formed by sandwiching the connecting piece of one connecting member from the outside between a pair of left and right brackets of the other connecting member, and rotatably connecting them with a pivot that passes through both. In this bearing structure, the bearing surfaces of the pair of opposing pivot shafts and the hole of the connecting piece, which are each fixed to the bracket, are symmetrical tapered surfaces with diameters gradually decreasing toward the center in the axial direction, and A bearing structure for a connection part of a work implement member, characterized in that the length of the pivots is set so that there is a space in the axial direction between opposing pivots. (2) The working machine according to claim 1, wherein the pivot is fixed to the bracket with a shim interposed in the axial direction, and the pivot can be displaced toward the tip end side in the axial direction by removing the shim. Bearing structure of the connecting part of the parts for use. (3) The tip of the pivot is formed into a concentric small-diameter protruding shaft, and a pivot-side thrust bearing, whose outer peripheral surface faces inward and is formed into a tapered surface with a gradually smaller diameter, is fixed to the protruding shaft in a replaceable manner. Claim 1
A bearing structure of a connecting portion of the described working machine member. (4) The thrust bearing on one side of the connection that receives the tapered surfaces of the opposing pivots integrally forms a symmetrical inner circumferential surface that gradually increases in diameter from the center toward the outside. The bearing structure of the connection part of the working machine parts.
JP1988139590U 1988-10-26 1988-10-26 Bearing structure of connecting part of work equipment members Expired - Lifetime JP2539202Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988139590U JP2539202Y2 (en) 1988-10-26 1988-10-26 Bearing structure of connecting part of work equipment members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988139590U JP2539202Y2 (en) 1988-10-26 1988-10-26 Bearing structure of connecting part of work equipment members

Publications (2)

Publication Number Publication Date
JPH0262948U true JPH0262948U (en) 1990-05-10
JP2539202Y2 JP2539202Y2 (en) 1997-06-25

Family

ID=31402990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988139590U Expired - Lifetime JP2539202Y2 (en) 1988-10-26 1988-10-26 Bearing structure of connecting part of work equipment members

Country Status (1)

Country Link
JP (1) JP2539202Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524947U (en) * 1975-06-26 1977-01-13
JPS595666U (en) * 1982-06-29 1984-01-14 日立建機株式会社 pin coupling device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524947U (en) * 1975-06-26 1977-01-13
JPS595666U (en) * 1982-06-29 1984-01-14 日立建機株式会社 pin coupling device

Also Published As

Publication number Publication date
JP2539202Y2 (en) 1997-06-25

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