CN2030989U

CN2030989U - Electric drivened claw grab

Info

Publication number: CN2030989U
Application number: CN 88208322
Authority: CN
Inventors: 张富; 李天裕; 贺志虎; 赵宏亮; 陈瑞生
Original assignee: YANGQUAN STATION SHIZIAZHUANG RAILWAY BRANCH
Current assignee: YANGQUAN STATION SHIZIAZHUANG RAILWAY BRANCH
Priority date: 1988-07-15
Filing date: 1988-07-15
Publication date: 1989-01-18

Abstract

The utility model relates to a claw grab which is opened and closed by a drive motor arranged on the claw grab. In order to fit for the characteristics of the railway car, the railway handling device and the railway handling operation, the claw grab composed of an upper beam, a supporting rod, a lower beam and a claw jaw plate is provided. The upper beam is provided with a power drive device and an n-shaped beam, wherein, the top of the n-shaped beam is provided with a hanging ring. The inner surface of the claw jaw plate is composed of three curves and a straight line, and the outer surface of the claw jaw plate is composed of two curves and a straight line. The claw jaw plate is a nonprismatic I-shaped cross section.

Description

Electronic jaw grab

The utility model belongs to the jaw grab of opening or closing with the drive motor that is installed in above it.

In railway loading and unloading department, attack with handling equipment and to unload when wood unit, adopt artificial department rope usually, serious threat operating personnel's personal safety, and influenced operating efficiency greatly.And the extracting bamboo of existing other departments material, the isometric material of round log often are subjected to rolling stock, railway loading and unloading equipment and require quick change can't adopt with the restriction of the loading and unloading operation characteristics that adapt to the comprehensive goods of railway loading and unloading.

For a kind of jaw grab that adapts to rolling stock, railway loading and unloading equipment and railway loading and unloading operating feature is provided, the utility model is proposed.

The utility model is made up of entablatrance, strut, cross sill and claw type jaw, on entablatrance, be equipped with and drive the  ellbeam that suspension ring are equipped with in unlatching of claw type jaw or the power drive of closing and napex, it is hinged with four struts that are hinged on the entablatrance to constitute two pairs of claw type jaws middle parts that inside face and two sections circular arcs, one section straight line constitute outside face by three sections circular arcs, one section straight line, and the one end is hinged on the cross sill that assembly pulley is housed.

The suspension ring that are contained on the entablatrance of the present utility model be convenient to grab bucket quick change, and arbitrarily conversion goods orientation, by the claw type jaw inside face of three sections circular arcs, one section rectilinear(-al), not only adapt to railway vehicle width, railway loading and unloading equipment lifting altitude, and improve fourth and grasp effect, thereby reach the utility model purpose.

Fig. 1 is the utility model outside drawing

Fig. 2 is the utility model front elevation

Fig. 3 is the planform figure of claw type jaw of the present utility model

Below in conjunction with accompanying drawing the utility model is further elaborated.

The utlity model has entablatrance 1, four struts 2,3,4,5, cross sill 6 and two pairs of claw type jaws 7,8,9,10, on entablatrance 1, be equipped with by electrical motor 11, retarder 12, reel 13, the  type beam 17 that suspension ring 16 are equipped with at power drive of forming with drg 14 15 and top, four struts 2,3,4, an end of 5 is hinged on the entablatrance 1, its other end is hinged on two pairs of claw type jaws 7 respectively, 8,9, the lug 18 at 1O middle part, 19,20, on 21, two pairs of claw type jaws 7,8,9, an end of 10 has and cross sill 6 two ends axle journals 22,23, be complementary and be hinged on 22, hinge hole 24 on 23,25,26,27, assembly pulley 28 is housed on the cross sill 6, the steel rope 29 that is wound on the reel 13 is walked around assembly pulley 28, and cross sill 6 is reeled on reel 13 along with steel rope 29 and loosens that face rises and descend.The center point P of the hinge hole 24,25,26,27 of claw type jaw 7,8,9,10 and its other end pawl point Q are on same straight line, the inside face of claw type jaw 7,8,9,10 is made up of three sections curve A B, BC, CD and one section straight line DE, and the outside face of claw type jaw 7,8,9,10 is made up of two sections curve FG, GH and linear portion HI.The The curvature center and the radius of curvature of each segment of curve are as follows:

Radius of curvature		The curvature center
		The curvature center			Apart from hinge P vertical distance		Apart from PQ line vertical distance
			Best	Best	Apart from hinge P vertical distance		Apart from PQ line vertical distance		Best
?AB ?BC ?CD ?FG ?GH	770-970 470-670 460-66O 950-1150 460-660		Best	Best	??92O ??62O ??610 ??11OO ??61O	??850-105O ??55O-750 ??430-630 ??850-1050 ??45O-650	??1000 ??7OO ??580 ??10OO ??6OO	??10-75 ??100-200 ??100-200 ??10-75 ??300-400	Best	??5O ??15O ??15O ??5O ??35O

The most advanced and sophisticated Q of claw type jaw 7,8,9,10 is that main 200-1380 the best is 1325 to the distance of hinge hole center P, and claw type jaw 7,8,9,10 is the I shape section of variable section.

When operation, suspension ring 6 are enclosed within on the handling equipment suspension hook, suspension hook descends and connects power drive 15 power supplys, drg 14 loosens, electrical motor 11 reverses and drives reels 13 counter-rotatings through retarder 12, make steel rope 29 loosen elongation, thereby cross sill 6 is descended with the elongation of the steel rope 29 of walking around assembly pulley 28, be hinged on the axle journal 22 of cross sill 6, claw type jaw 7 on 23,8,9,10 hinge hole 24,25,26,27 ends move down with cross sill 6, thereby make claw type jaw 7,8,9,10 around being hinged on middle part lug 18 separately, 19,20, strut 2 on 21,3,4,5 towards making the claw type jaw open direction rotation, strut 2,3,4,5 also around rotating relative to going up crossbeam 1 with entablatrance 1 pivotally attached hinge.Claw type jaw 7,8,9,10 to maximum opening, cut off power drive 15 power supplys, motor 11 stalls, drg 14 brakings, claw type jaw 7,8,9,10 keep maximum opening, grab bucket is dropped down onto on the stockpile, connect power drive 15 power supplys, drg 14 loosens, electrical motor 11 is just changeing, and drive reels 13 through retarder 12 and just changeing, make steel rope 29 coiling coilings 13 and shorten, thereby crossbeam 6 is shortened with the steel rope of walking around assembly pulley 28 and on move, be hinged on the axle journal 22 of cross sill 6, shape jaw 7 on 23,8,9,10 hinge hole 24,25,26,27 ends are with moving on the cross sill, thereby make claw type jaw 7,8,9,10 around being hinged on middle part lug 18 separately, 19,2O, strut 2 on 21,3,4,5 towards claw type jaw closing direction is rotated, strut 2,3,4,5 also around rotating relative to entablatrance 1 with entablatrance 1 pivotally attached hinge, material is gone into grab bucket, and along the EF linear portion, CE, BC, AB, move to be full of grab bucket on segment of curve is smooth, closed fully until the claw type jaw, finish the extracting operation.

Claims

1, a kind of usefulness is installed in the long material jaw grab that the drive motor above it is opened or closed, it has entablatrance 1, four struts 2,3,4,5, cross sill 6 and two pairs of claw type jaws 7,8,9,10, on entablatrance 1, be equipped with by electrical motor 11, retarder 12, the power drive 15 that reel 13 and drg 14 are formed, four struts 2,3,4, an end of 5 is hinged on the entablatrance 1, its other end is hinged on two pairs of claw type jaws 7 respectively, 8,9, the lug 18 at 10 middle parts, 19,20, on 21, two pairs of claw type jaws 7,8,9, an end of 10 has and cross sill 6 two ends axle journals 22,23 match and are hinged on 22, hinge hole 24 on 23,25,26,27, assembly pulley 28 is housed on the cross sill 6, the steel rope 29 that is wound on the reel 13 is walked around assembly pulley 28, and make cross sill 6 reel on reel 13 along with copper rope 29 or loosen and rise or descend, the claw type jaw pulls 7,8,9,10 hinge hole 24,25,26,27 center point P and its other end pawl point Q is characterized in that on the described entablatrance 1  ellbeam 17 being housed on same straight line.At the top of  ellbeam 17 suspension ring 16 are housed;

The inside face of claw type jaw 7,8,9,10 is made up of three sections curve A B, BC, CD and one section straight line DH, the outside face of claw type jaw 7,8,9,10 is made up of two sections curve FG, GH and one section straight line HI, and the The curvature center of each segment of curve and radius of curvature are:

Radius of curvature The curvature center Apart from hinge P vertical distance Apart from PQ line vertical distance AB BC CD FG GH ?????770-97O ?????470-67O ?????460-66O ?????95O-1150 ?????460-66O ????850-1050 ????550-750 ????430-630 ????85O-1050 ????450-650 ????10-75 ????100-200 ????100-200 ????10-75 ????300-400

The most advanced and sophisticated Q of claw type jaw 7,8,9,10 to the distance of hinge hole center P be 1200-1380.

2,, it is characterized in that the The curvature center and the radius of curvature optimum value of described claw type jaw 7,8,9,10 each segment of curve of inside and outside surface is according to the described jaw grab of claim 1:

Radius of curvature The curvature center Apart from hinge P vertical distance Apart from PQ line vertical distance AB BC CD FG GH ????920 ????620 ????610 ????1100 ????610 ????1000 ????700 ????580 ????1000 ????600 ????50 ????150 ????150 ????50 ????350

The most advanced and sophisticated Q of claw type jaw 7,8,9,10 is 1325 to the hinge hole center P apart from the best.

3,, it is characterized in that described claw type jaw 7,8,9,10 is the I shape section of variable section according to claim 1,2 described jaw grabs.