CN2180624Y

CN2180624Y - Bucket grab for bulk material

Info

Publication number: CN2180624Y
Application number: CN 92239602
Authority: CN
Inventors: 李福利; 任秀峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-01
Filing date: 1992-11-01
Publication date: 1994-10-26
Anticipated expiration: 2002-11-01

Abstract

The utility model discloses a grab bucket for bulk materials. An internal and an external supporting arms are connected via a hinge. A bucket body grabbing and containing materials is controlled through an automatic folding mechanism to cooperate with the supporting arm to do the actions of grabbing and tapping materials. The grab bucket for bulk materials is mainly used for the loading and unloading operation of the bulk materials in coal, mines, cement, casting, foodstuffs, table salt and other industries. Under the cooperation of a crane, the automatic folding mechanism mainly comprising a balance hook replaces a traditional gear drive or an electric structure and controls the bucket body to open and close, so as to realize the automatic material grabbing and tapping purpose.

Description

Bucket grab for bulk material

The utility model belongs to the handling equipment of bulk material.

The existing installation employing places the gear drive of grab bucket crossbeam top or the folding that electric structure is realized grab bucket, complex structure, and volume is big, needs spcific power device startup opening-closing structure, and the fault rate height is not easy to maintenance.

The purpose of this utility model is to simplify the grab bucket structure, and reduced volume increases reliability, and handled easily uses.

The purpose of this utility model is achieved in that bucket body is for grasping and holding material and cooperate supporting arm to realize grasping and the blowing action, the hoisting force of steel rope acts on automatic open-and-close mechanism based on the balance hook by entablatrance, by the balance hook with the automatic engagement of being located at the pin on the cross sill with break away from and realize grasping and blowing moves.During material grasping, starting crane descends suspension hook, the balance hook that links with steel rope descends because of deadweight, and the smooth bevel of balance hook bottom side acts at first that concurrent looks is to motion on the bearing pin with the cross sill one, and the balance hook tilts, when moving to the top of hook, the balance hook restores balance bearing pin hooked, and realized connecting of steel rope and cross sill, starts crane and promotes, open-and-close mechanism based on the balance hook is controlled moving of bucket body along the pilot bar rising and by inside and outside supporting arm, realizes the extracting of material.During blowing, hoist lifting hook descends, because the position of the steel rope by entablatrance off-centre and bucket body bottom slightly is pointed, when placing on the support, bucket body tilts to specific direction, balance hook hook end moment diminishes, and causes the balance hook to rotate with bearing pin and breaks off relations, and cross sill moves down and moving by inside and outside supporting arm, control bucket body along pilot bar, grab bucket is opened, the beginning blowing.

The utility model volume is little, and is simple in structure, safe and reliable, be convenient to make, and be the ideal equipment of bulk material loading and unloading operation.

Accompanying drawing is made up of Fig. 1 and Fig. 2, and Fig. 1 is the blowing state, and Fig. 2 is a seized condition.The utility model mainly is made up of bucket body 1, internal support arm 2, external support arm 3, cross sill 4, bearing pin 5, balance hook 6, entablatrance 7, pilot bar 8, steel rope 9, and wherein A, B, C are hinge.

As can be seen, external support arm 3 connects entablatrance 7 and bucket body 1 by hinge A, B respectively from accompanying drawing; One end of internal support arm 2 is connected with cross sill by hinge C, and the other end then is fixed on the bucket body 1; On lower and upper cross-member 7,4, offer circular hole pilot bar 8 is housed, the automatic open-and-close mechanism based on balance hook 6 between hinge A, C can move up and down along pilot bar 8, balance hook 6 is for there being certain thickness crotch, its bottom side is a smooth bevel, can rotate around the bearing pin that is positioned at its center of gravity when balance hook 6 restores balance, the bearing pin 5 that is fixed on the cross sill 4 is positioned under the balance hook 6; Steel rope 9 is connected with the bearing pin of balance hook 6 centers of gravity by the circular hole in off-center left side on the entablatrance 7.

Claims

1, a kind of bulk material grab bucket, adopt hinge to connect inside and outside supporting arm, it is characterized in that: external support arm 3 connects entablatrance 7 and bucket body 1 by hinge A, B respectively, one end of internal support arm 2 is connected with cross sill 4 by hinge C, the other end is fixed on the bucket body 1, on lower and upper cross-member 7,4, offer circular hole pilot bar 8 is housed, balance hook 6 is arranged between hinge A, the B.

2, bulk material according to claim 1 grab bucket is characterized by described balance hook and is a crotch that bearing pin is housed at the center of gravity position.