Classifications

• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02F—DREDGING; SOIL-SHIFTING
  • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
  • E02F9/006—Pivot joint assemblies
• • 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

Definitions

• the present invention relates to an improvement in a coupling mechanism for pivotally connecting a body arm and a bucket, such as a bucket, of a civil engineering machine via a bin hole and a bin. Is to use a flange with a flange fitted with an annular plate member such as a shim.]? The same attachment is used for various types with different widths and pin hole diameters.
• the present invention relates to a connection mechanism for attachment that can be commonly applied to various types of arms.
• the main body arm of a civil engineering machine to which detachable attachments such as buckets are detachably connected has a slightly different width and diameter of a bin hole depending on each force. For this reason, when the same attachment stay is connected to an arm of a different model, it cannot be installed.Inappropriate connection parts may damage the components. Was. In particular, in the case of renting the same attachment to users of different types of civil engineering equipment in recent years, it will be possible to apply the same technology to any type of body arm in common. A touch connection mechanism is required.
• This type of coupling mechanism has a pusher with a small-diameter shaft part and a large-diameter part, as shown in Japanese Patent Publication No. 58-322500.
• the gap between the pin and the pin hole is complemented by the wall thickness of the radial shaft, and the gap between the arm and the attachment stage is complemented by the lateral width of the large diameter section.
• the known misfortune Yu is known.
• An object of the present invention is to solve this problem by using a boss with a flange and an annular member such as a shim that is removably fitted to the shaft of the boss. ]), To provide a connection mechanism that allows a single thread to be used in common for various types of arms and attachments having different mounting widths.
• the present invention relates to a connecting member.
• a connecting member In addition to fitting a flanged boss to the frame, a plurality of annular plate members are fitted to the outer periphery of the flange to the desired thickness, and a stay is formed by the thickness of the flange and the annular member.
• the gap between the arms is complemented, and the gap between the bin and the hole is complemented by the wall thickness of the boss's cylinder wall.5
• the same attachments can be combined to different kinds of arms in a consistent manner.
• FIG. 1 is an external view of the mounting of the arm and the attachment
• Fig. 2 is an explanatory view of assembling the boss and the annular plate member used in the present invention
• FIG. 3 is a preferred embodiment of the present invention.
• FIG. 1 shows an example of a sectional view taken along the line m-in of FIG. 1
• FIG. 4 is an explanatory view showing an assembly of a connecting part in the embodiment of FIG. 3
• FIG. 5 is a fourth embodiment of the present invention. This is an equivalent diagram.
• FIG. 1 is a main body arm connected to the illustrated earth-moving machine, and 2 is a hook at the tip of the main body arm 1.
• This is an attachment that is pivotally connected via a pin 3 and a bucket for excavation is shown in the example in the figure.
• Reference numerals 4 and 5 in the figure denote links for rotating the attachment by the operation cylinder 6.
• the attachment 2 has a pair of right and left stays 7, 7, which are fixed at regular intervals in the upper part, and is formed on the stay 7. Make the bin hole 7 'face the connecting hole 1' at the end of the arm 1. It is connected movably through the connector 3.
• the present invention provides a method for controlling the distance between the inner width of the stays 7 and 7 and the width of the arm 1 and the width of the arm 1.
• the chick The gap between the diameter of the pin hole or the pin hole 7 'of the stay 7 and the diameter of the bin 3 causes the joint between the armature and the arm to be fitted.
• the flange 8 and the hollow cylindrical body 8a of the flange 8 A relatively thin annular plate forest 9 such as a shim, a dasher, etc., fits between the bin 3 and the bin hole 7 '(or 1') and between the stays 7 and 7. 7 to fill the gap between the arm width and the arm width, so that the connection between the arm 1 and the armature 2 is aligned.
• the outer periphery of the hollow cylindrical body 8a of the boss 8 made of a durable material such as a metal having a flange 8b at one end, and a predetermined material made of the same material
• a number of the annular plate members 9 are removably fitted through the center holes 9 'of the annular plate members 9 and, as shown in FIG. Is formed.
• the wall thickness of the cylindrical body 8 a is formed to have various dimensions, and the stage 7 is applied. Select a boss with an appropriate wall thickness to make up the gap between hole 7 '(or armhole 1') and pin 3 inserted into it. use.
• the annular plate member 9 has an overall thickness, an inner width between the stays 7 and 7 by a pair of left and right slanges 8b, and a lateral width of the arm 1 connected therebetween via the pin 3. Insert an appropriate number of pieces to make up for the gap between them.
• the hollow cylindrical body portions 8a of the pair of bosses 8 into which the annular plate members 9 are detachably fitted are formed in the via holes formed in the attachment stay 7.
• the hole 7 ′ of the stay 7 is the arm 1.
• the cylinder 8a of the boss 8 is Fit into the bin hole 7 'of the stay 7.
• the bin hole 1 ′ of the arm 1 is larger than the bin hole 7 ′ of the stay 7, the cylinder 8 a of the boss 8 is connected to the arm 1 as shown in FIG.
• the via hole 1 'of the connector is shown in FIG.
• the attachment to which the present invention is applied is designed so that the attachment can be connected to any type of arm, so that the inner width between the stages 7 and 7 of the attachment 2 and each of the attachments can be connected. It is desirable that the 7th pin hole 7 'be formed relatively large in advance.
• the arm and the attachment are connected to each other through the flange-attached boss in which the annular plate member such as the shim is detachably fitted.
• the gap caused by the dimensional difference between the width of the arm and the width of the arm is adjusted by increasing or decreasing the annular plate member, and the dimensional difference between the bin and the pin hole is determined by the wall thickness of the boss. It is configured to complement, so the same attachment can be fitted and connected to many types of arms with different dimensional specifications.
• the width of the connecting portion can be adjusted by the detachable annular plate member, it is not necessary to prepare various types of bosses having different flange widths as in the prior art. It is economical. Therefore, fewer parts are required for attachment release and rental, and the machine operation rate is significantly reduced. In addition to being able to be improved, maintenance is easy in the case of wear, so that there is an effect that the misconnected portion can be always maintained in an aligned state.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Mining & Mineral Resources (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Shovels (AREA)
• Component Parts Of Construction Machinery (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=16236282

Family Applications (1)

Country Status (2)

Cited By (2)

Citations (11)

Family Cites Families (1)

• 1983
  • 1983-12-09 JP JP1983189151U patent/JPS6096470U/ja active Granted
• 1984
  • 1984-11-30 WO PCT/JP1984/000571 patent/WO1985002638A1/ja unknown

Patent Citations (11)

Non-Patent Citations (1)

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