CN216583821U

CN216583821U - Scissor-fork type low-clearance crane grab bucket

Info

Publication number: CN216583821U
Application number: CN202220859155.0U
Authority: CN
Inventors: 张双双
Original assignee: Henan Huagong Industrial Group Co ltd
Current assignee: Henan Huagong Industrial Group Co ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-05-24
Anticipated expiration: 2032-04-14

Abstract

The utility model relates to the field of crane grab buckets, in particular to a scissor-fork type low-clearance crane grab bucket; the grab bucket mechanism comprises a first grab bucket and a second grab bucket, wherein the first grab bucket and the second grab bucket are connected, the upper part of the first grab bucket is connected with a first connecting frame, the upper part of the second grab bucket is connected with a second connecting frame, the first connecting frame and the second connecting frame are in X-shaped cross connection through a connecting shaft, the upper part of the first connecting frame and the upper part of the second connecting frame are respectively and fixedly connected with a first installation shaft and a second installation shaft which are horizontally arranged, and the first installation shaft and the second installation shaft are both rotatably connected with a pulley block; a first guide wheel and a second guide wheel are respectively arranged on two sides of the upper bearing seat; the scissor type grab bucket is used for solving the problems that the existing scissor type grab bucket is not stable enough in lifting, and the upper bearing seat is in contact with the opening and closing steel wire rope, so that the opening and closing steel wire rope is abraded, and the service life is shortened.

Description

Scissor-fork type low-clearance crane grab bucket

Technical Field

The utility model relates to a crane grab field, concretely relates to cut low headroom crane grab of fork formula.

Background

The grab bucket is a load-taking device widely applied to loading and unloading bulk cargos, and is widely applied to various water transportation and freight occasions by virtue of a simple and flexible modeling structure and a reliable and stable working mode. Grab buckets are formally put into industrial use, have a hundred years history, and are mainly divided into two categories: long strut grab buckets and scissor grab buckets. The opening action and the closing action of the scissor type grab bucket are realized by loosening and tightening the opening and closing steel wire rope and by self weight, and the closing action is realized by tightening the steel wire rope of the pulley block. The opening and closing steel wire rope of the existing scissor type grab bucket can generate friction with the upper bearing seat, so that the service life of the opening and closing steel wire rope is shortened; four corners of the existing scissor grab bucket are connected with an upper seat through four chains, and the lifting is not stable enough.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cut low headroom hoist grab bucket of fork for solve current formula grab bucket of cutting and lift by crane not steady enough to and go up bearing and switching wire rope contact, make switching wire rope wearing and tearing reduce life's problem.

The technical scheme of the utility model is realized like this: a scissor type low-clearance crane grab bucket comprises an upper bearing seat and a grab bucket mechanism connected with the upper bearing seat, wherein the grab bucket mechanism comprises a first grab bucket and a second grab bucket, the upper part of the first grab bucket is connected with a first connecting frame, the upper part of the second grab bucket is connected with a second connecting frame, the first connecting frame and the second connecting frame are in X-shaped cross connection through connecting shafts, the upper part of the first connecting frame and the upper part of the second connecting frame are respectively and fixedly connected with a first mounting shaft and a second mounting shaft which are horizontally arranged, and a pulley block is respectively and rotatably connected onto the first mounting shaft and the second mounting shaft; a first guide wheel and a second guide wheel are respectively arranged on two sides of the upper bearing seat, a first lower pulley is arranged at two corners of the outer part of the first grab bucket, and a second lower pulley is arranged at two corners of the outer part of the second grab bucket; the pulley block on the second guide wheel and the first installation shaft is wound with a first opening and closing steel wire rope, and the pulley block on the first guide wheel and the second installation shaft is wound with a second opening and closing steel wire rope.

The upper bearing seat is of a cuboid structure with an opening at the bottom.

The top fixedly connected with of going up the bearing has the bottom plate of vertical setting, and the both sides on the upper portion of bottom plate articulate has the fixed plate, and the dead lever that the fixedly connected with interval set up between two fixed plates.

The bottom of the upper bearing seat is provided with a first shaft and a second shaft which are parallel to each other at intervals, and the first shaft and the second shaft are respectively and rotatably connected with a first bottom pulley and a second bottom pulley.

And a first steel wire rope is wound on the first two first lower pulleys and the first bottom pulley.

And a second steel wire rope is wound on the second lower pulleys and the second bottom pulley.

The technical scheme of the utility model has following positive effect: the first guide wheel and the second guide wheel are arranged on two sides of the upper bearing seat of the utility model, so as to prevent the opening and closing steel wire rope from being worn with the upper bearing seat; the upper bearing seat is hinged with a fixing plate, the fixing plate is used for fixing a hoisting steel wire rope, and the hoisting steel wire rope, the opening and closing steel wire rope I and the opening and closing steel wire rope II synchronously move, so that the first grab bucket and the second grab bucket are more stable when grabbing goods to be lifted; the first grab bucket, the second grab bucket and the upper bearing seat are flexibly connected by winding the first steel wire rope and the second steel wire rope on the first lower pulley, the second lower pulley, the first bottom pulley and the second bottom pulley, so that the stability during hoisting is improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Figure 3 is a bottom view of the upper shoe.

Fig. 4 is a schematic structural diagram of an embodiment.

Fig. 5 shows a rope winding method for the opening and closing wire rope one and the opening and closing wire rope two.

Fig. 6 is a schematic structural view of the first mounting shaft and the pulley block.

Fig. 7 is a schematic structural view of the second pulley shaft and the pulley block.

Detailed Description

As shown in fig. 1, 2, 3, 4, 5, 6, and 7, a scissor-fork type low-clearance crane grab bucket comprises an upper bearing seat 1 and a grab bucket mechanism connected with the upper bearing seat 1, wherein the grab bucket mechanism comprises a first grab bucket 2 and a second grab bucket 3, the upper part of the first grab bucket 2 is connected with a first connecting frame 4, the upper part of the second grab bucket 3 is connected with a second connecting frame 5, the first connecting frame 4 and the second connecting frame 5 are in X-shaped cross connection through a connecting shaft, the upper part of the first connecting frame 4 and the upper part of the second connecting frame 5 are respectively and fixedly connected with a first mounting shaft 7 and a second mounting shaft 8 which are horizontally arranged, and the first mounting shaft 7 and the second mounting shaft 8 are both rotatably connected with a pulley block; the two sides of the upper bearing seat 1 are respectively provided with a first guide wheel 10 and a second guide wheel 11, two corners of the outside of the first grab bucket 2 are respectively provided with a first lower pulley 12, two corners of the outside of the second grab bucket 3 are provided with a second lower pulley 13, the second guide wheel 11 and a pulley block on the first installation shaft 7 are wound with a first opening and closing steel wire rope 21, and the pulley blocks on the first guide wheel 10 and the second installation shaft 8 are wound with a second opening and closing steel wire rope 22.

Specifically, the winding manner of the opening and closing wire rope 21 and the opening and closing wire rope 22 is as shown in fig. 5, the pulley blocks on the first mounting shaft 7 and the second mounting shaft 8 are provided with three pulleys, as shown in fig. 6 and 7, the pulleys on the first mounting shaft 7 include a pulley three 70, a pulley four 71 and a pulley five 72, the pulleys on the second mounting shaft 8 include a pulley six 80, a pulley seven 81 and a pulley eight 82, the opening and closing wire rope 21 sequentially passes through the second guide wheel 11, the pulley four 71, the pulley six 80 and the pulley five 72, and the opening and closing wire rope 22 sequentially passes through the first guide wheel 10, the pulley seven 81, the pulley three 70 and the pulley five eight 82, and during operation; as shown in fig. 4, the opening and closing wire rope 21 and the opening and closing wire rope 22 extend from the duplex drum 24, the opening and closing wire rope 21 and the opening and closing wire rope 22 drive the first grab 2 and the second grab 3 to fall to the grabbed object and to open by self-weight, the opening and closing wire rope 21 and the opening and closing wire rope 22 move upwards, the first grab 2 and the second grab 3 are closed, and the first grab 2 and the second grab 3 are driven to rise; the first guide wheel 10 and the second guide wheel 11 are respectively installed on two sides of the upper bearing seat 1, and when the opening and closing steel wire rope 21 and the opening and closing steel wire rope 22 pass through the upper bearing seat 1, the abrasion is reduced through the first guide wheel 10 and the second guide wheel.

The upper bearing seat 1 is a cuboid structure with an opening at the bottom.

The top of the upper bearing seat 1 is fixedly connected with a vertically arranged bottom plate 18, two sides of the upper part of the bottom plate 18 are hinged with fixing plates 19, and fixing rods 20 arranged at intervals are fixedly connected between the two fixing plates 19; as shown in fig. 4, the hoisting steel wire rope 23 extends from the duplex drum 24, the tail ends of the hoisting steel wire rope 23 are respectively fixed on the two fixing rods 20, and the hoisting steel wire rope 23, the opening and closing steel wire rope 21 and the opening and closing steel wire rope 22 rise and fall simultaneously, so that the first grab 2 and the second grab 3 are more stable when the hoisting steel wire rope 23 grabs the goods to rise and fall.

The bottom of the upper bearing seat 1 is provided with a first shaft and a second shaft which are parallel to each other at intervals, and the first shaft and the second shaft are respectively and rotatably connected with a first bottom pulley 14 and a second bottom pulley 15; a first steel wire rope 16 is wound on the two first lower pulleys 12 and the first bottom pulley 14; a second steel wire rope 17 is wound on the two second lower pulleys 13 and the second bottom pulley 15; the upper bearing seat 1 is flexibly connected with the first grab bucket 2 and the second grab bucket 3 through the first steel wire rope 16, the two first lower pulleys 12, the two second lower pulleys 13 and the second steel wire rope 17, and therefore the stability during hoisting is improved.

Claims

1. The utility model provides a cut fork low headroom hoist grab bucket, includes bearing (1) and the grab bucket mechanism who is connected with last bearing (1), its characterized in that: the grab bucket mechanism comprises a first grab bucket (2) and a second grab bucket (3), the upper part of the first grab bucket (2) is connected with a first connecting frame (4), the upper part of the second grab bucket (3) is connected with a second connecting frame (5), the first connecting frame (4) and the second connecting frame (5) are in X-shaped cross connection through a connecting shaft, the upper part of the first connecting frame (4) and the upper part of the second connecting frame (5) are respectively and fixedly connected with a first mounting shaft (7) and a second mounting shaft (8) which are horizontally arranged, and the first mounting shaft (7) and the second mounting shaft (8) are respectively and rotatably connected with a pulley block; a first guide wheel (10) and a second guide wheel (11) are respectively installed on two sides of the upper bearing seat (1), a first lower pulley (12) is installed at two corners of the outer portion of the first grab bucket (2), and a second lower pulley (13) is installed at two corners of the outer portion of the second grab bucket (3); the pulley blocks on the second guide wheel (11) and the first mounting shaft (7) are wound with a first opening and closing steel wire rope (21), and the pulley blocks on the first guide wheel (10) and the second mounting shaft (8) are wound with a second opening and closing steel wire rope (22).

2. A scissor low headroom crane grab as claimed in claim 1, wherein: the upper bearing seat (1) is of a cuboid structure with an opening at the bottom.

3. A scissor low headroom crane grab bucket according to claim 2, wherein: the top of the upper bearing seat (1) is fixedly connected with a vertically arranged bottom plate (18), two sides of the upper part of the bottom plate (18) are hinged with fixing plates (19), and fixing rods (20) arranged at intervals are fixedly connected between the two fixing plates (19).

4. A scissor low headroom crane grab as claimed in claim 3, wherein: the bottom of the upper bearing seat (1) is provided with a first shaft and a second shaft which are parallel to each other at intervals, and a first bottom pulley (14) and a second bottom pulley (15) are respectively connected to the first shaft and the second shaft in a rotating mode.

5. A scissor low headroom crane grab as claimed in claim 4, wherein: the two first lower pulleys (12) and the first bottom pulley (14) are wound with a first steel wire rope (16).

6. A scissor low headroom crane grab bucket according to claim 4, wherein: and a second steel wire rope (17) is wound on the second lower pulleys (13) and the second bottom pulley (15).