CN2693732Y

CN2693732Y - Weight type monocable grab

Info

Publication number: CN2693732Y
Application number: CN 200420020357
Authority: CN
Inventors: 宗胜琪; 倪井兴; 陈耀康; 仲志平
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-23
Filing date: 2004-02-23
Publication date: 2005-04-20
Anticipated expiration: 2014-02-23

Abstract

The utility model discloses a weight hammer type monocable grab bucket, aiming to provide a monocable grab bucket which has simple structure and stable and reliable open-close movement and is capable conveniently observing the action of an open-close mechanism. The grab bucket comprises a balance beam, a steel cable, an upper beam, guide rails, a lower beam, a brace bar, a bump bar, a bucket body and a slide box, wherein, the slide box is composed of a weight hammer, a fan-shaped rack gear, a screw-sleeve pinion, a screw, a pushing block, a screw sleeve and a slide box body. One side of the weight hammer is connected with the fan-shaped rack gear which is meshed with the screw-sleeve pinion, and the inner side of the screw-sleeve pinion is connected with the screw which is fixed at the side surface of the slide box. The inner end of the screw-sleeve pinion is connected with a pushing rod. The lower part of the guide rail at one side of the pushing rod of the slide box is provided with a groove.

Description

The weight hammer type single rope grab

One, technical field

The utility model relates to a kind of single rope grab, especially relates to a kind of single rope grab of handling the grab bucket switching by weight.

Two, background technology

At present, the switching of single rope grab has various ways, the mechanism forms such as slide block, turn key, turnover panel that mainly contain commonly used, and these several mechanism forms all can be realized the on-off action of single rope grab.But because the action of these mechanisms is beating property, make the switching of single rope grab misoperation often occur, and operating personal can not be observed switching mechanism and move residing position in grab bucket work, makes operation have certain blindness.

Three, summary of the invention

The utility model has overcome the deficiency that present single rope grab exists, provide a kind of simple in structure, on-off action is reliable and stable, can conveniently observe the weight hammer type single rope grab of switching mechanism action in operation.

Weight hammer type single rope grab of the present utility model, comprise equalizing bar, steel rope, put the beams in place, guide rail, underbeam, strut, touching lever, bucket body, the slippage case, steel rope two is fixedly attached to equalizing bar and slippage case respectively, strut connects by bearing pin puts the beams in place and bucket body, underbeam links together by the bearing pin and the bucket body at two ends, underbeam top is connected and fixed guide rail, the slippage case can carry out slide down and move on guide rail, the slippage case is by weight, fan-shaped big gear wheel, screw rod cover miniature gears, screw rod, push rod, the slippage casing is formed, weight one end is connected with fan-shaped big gear wheel, fan-shaped big gear wheel engagement screws cover miniature gears, screw rod cover miniature gears inboard is connected with screw rod, screw rod is fixed on the side of slippage casing, and screw rod cover miniature gears inner end connects with push rod, and the guide rail bottom has groove in push rod one side of slippage case.

Spring is equipped with in the threaded cover miniature gears of described push rod inner end junction; Described slippage case is equipped with pulley, and steel rope is walked around pulley and is fixedly attached to equalizing bar.

Because adopt technique scheme, the beneficial effect of the weight hammer type single rope grab that the utility model provides is: (1) weight drives the rotation of screw rod cover up and down, and to make the closure of grab bucket open action stable, the reliable in action height; (2) on-off action of weight hammer type single rope grab can clearly be observed by weight, makes things convenient for the workman to operate, and has improved operating efficiency.

Four, description of drawings:

Fig. 1 is the outside drawing of the utility model weight hammer type single rope grab;

Fig. 2 is the main portion constructional drawing of the utility model slippage case;

Fig. 3 (a), Fig. 3 (b), Fig. 3 (c), Fig. 3 (d), Fig. 3 (e), Fig. 3 (f), Fig. 3 (g) are the fundamental diagrams of the utility model weight hammer type single rope grab.

Among the figure: equalizing bar 1, steel rope 2, upper beam 3, guide rail 4, underbeam 5, strut 6, touching lever 7, bucket body 8, slippage case 9, weight 11, fan-shaped big gear wheel 12, screw rod cover miniature gears 13, screw rod 14, push rod 15, slippage casing 16.

Five, the specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

Among Fig. 1, steel rope 2 two are fixedly attached to equalizing bar 1 and slippage case 9 respectively, and strut 6 connects upper beam 4 and bucket body 8 by bearing pin, and underbeam 5 links together by bearing pin and bucket body 8, underbeam 5 tops are connected and fixed guide rail 4, and slippage case 9 can carry out slide down and move on guide rail 4.

Among Fig. 2, the slippage case is made up of weight 11, fan-shaped big gear wheel 12, screw rod cover miniature gears 13, screw rod 14, push rod 15, slippage casing 16, weight 11 1 ends are connected with fan-shaped big gear wheel 12, fan-shaped big gear wheel 12 engagement screws cover miniature gears 13, screw rod cover miniature gears 13 inboards are connected with screw rod 14, screw rod 14 is fixed on the side of slippage casing 16, and screw rod cover miniature gears 13 inner ends connect with push rod 15, and guide rail 4 bottoms have groove in push rod 15 1 sides of slippage case 9.

The described concise and to the point principle of work of the utility model is: crane fall connection equalizing bar 1 is placed on open grab bucket to be needed to grasp on the goods, as Fig. 3 (a); Crane fall makes equalizing bar 1 also descend together with slippage case 9 by steel rope 2 when descending, as Fig. 3 (b); Bottom slippage case 9 descends closely, when being in the groove location of guide rail 4 simultaneously, the touching lever 7 that weight 11 is held on bucket body rises weight 11 relatively, weight 11 rises and makes fan-shaped big gear wheel gear 12 rotations, fan-shaped big gear wheel 12 drives screw rod cover miniature gears 13 forward rotation on screw rod 14, and screw rod cover miniature gears 13 promotes push rod 15 when rotating propelling and ejects, and enters the groove of guide rail 4, pin guide rail 4, as Fig. 3 (c) and Fig. 2 (b); Hoisting crane drives equalizing bar 1, slippage case 9 rises, and because of the 15 locked guide rails 4 of the push rod in the slippage case 9, guide rail 4 and underbeam 5 also rise simultaneously, makes grab bucket closed gradually, as Fig. 3 (d); Grab bucket is complete closed, and the crane lifting grab bucket is risen, and moves to reach to the place of unloading, as Fig. 3 (e); Grab bucket lands, hoisting crane drives equalizing bar 1, slippage case 9 descends, fan-shaped big gear wheel 12 is rotated because of the deadweight decline of weight 11, and then drive screw rod cover miniature gears 13 moves outside the reverse rotation on screw rod 14, and pulling push rod 15 is regained, the groove of push rod 15 getaways discharges guide rail such as Fig. 3 (f) and Fig. 2 (a); Crane hoisting drives slippage case 9 and shelves 4 risings of putting the beams in place, and bucket body 8 utilizes deadweight to open gradually, as Fig. 3 (g) and Fig. 3 (a).Carry out next working cycle more successively.

Claims

1, a kind of single rope grab, comprise equalizing bar, steel rope, put the beams in place, guide rail, underbeam, strut, touching lever, bucket body, the slippage case, steel rope two is fixedly attached to equalizing bar and slippage case respectively, strut connects by bearing pin puts the beams in place and bucket body, underbeam links together by bearing pin and bucket body, underbeam top is connected and fixed guide rail, the slippage case can carry out slide down and move on guide rail, it is characterized in that: the slippage case is by weight, fan-shaped big gear wheel, screw rod cover miniature gears, screw rod, push rod, the slippage casing is formed, weight one end is connected with fan-shaped big gear wheel, fan-shaped big gear wheel engagement screws cover miniature gears, screw rod cover miniature gears inboard is connected with screw rod, screw rod is fixed on the side of slippage casing, and screw rod cover miniature gears inner end connects with push rod, and the guide rail bottom has groove in push rod one side of slippage case.

2, single rope grab according to claim 1 is characterized in that, spring is equipped with in the threaded cover miniature gears of described push rod inner end junction.

3, single rope grab according to claim 1 is characterized in that, described slippage case is equipped with pulley, and steel rope is walked around pulley and is fixedly attached to equalizing bar.