CN115650054A - Automatic hanging and releasing lifting appliance for inner hole lifting - Google Patents

Abstract

An automatic hanging and releasing lifting appliance for lifting an inner hole comprises a sleeve, a hook, a limiting column, a movable column and a clamping jaw; the top end of the sleeve is correspondingly connected with a hoisting mechanism of the crane, the cylinder wall at the bottom end of the sleeve is hinged with a plurality of hooks, a limiting column is inserted in the sleeve, and the hook head end of each hook can be correspondingly abutted against the conical bottom surface of the limiting column; the bottom surface of the limiting column is correspondingly and fixedly connected with the head part of the movable column, the column body of the movable column is provided with a shaft shoulder, a slidable annular plate is arranged between the shaft shoulder and the limiting column, the column body of the movable column is hinged with a plurality of clamping jaws, the bottom ends of the clamping jaws can clamp the inner hole of a lifted workpiece after rotating along a hinged joint, and the top ends of the clamping jaws are correspondingly connected with the sleeve through flexible connecting pieces; the lifting appliance can automatically complete the clamping of the workpiece, and improves the lifting efficiency of the workpiece.

Description

Automatic hanging and releasing lifting appliance for inner hole lifting

Technical Field

The invention relates to the technical field of crane hoisting, in particular to an automatic hanging and releasing lifting appliance for inner hole hoisting.

Background

As is known, hoisting of large workpieces is generally completed by a crane and a corresponding hoisting tool, and for cylindrical workpieces which are arranged in a cylinder and can only be hoisted by a centerline hole, hoisting is generally performed by a mother roll hoisting tool or a scissor type inner clamp hoisting tool; the female roll lifting appliance is mainly used for lifting workpieces with smaller inner holes and lighter weight, the lifting appliance calipers are retracted by manually lifting bolt on two sides of the lifting appliance, and the lifting appliance mandrel is lifted to push the calipers to compress the inner holes of the workpieces to realize lifting after the lifting appliance is placed in the inner holes; the scissors clamp is mainly used for workpieces with large inner holes and heavy weight, the clamp of the lifting appliance is retracted and inserted into the inner hole of the workpiece after the lifting appliance falls to an extremely low position, and the chain on the upper part of the lifting appliance is tensioned to enable the clamp of the lifting appliance to extrude the inner hole of the workpiece by utilizing the principle of a reverse scissor so as to realize the lifting of the workpiece;

although the two lifting appliances are simple in structure, the lifting appliances are required to be hung and taken off manually, and the lifting appliances are not suitable for industrial transportation occasions with high automation level; in addition, a lot of time is consumed in the manual clamping process, so that the efficiency of workpiece hoisting is low;

chinese patent (CN 201720893747.3) discloses a novel positive and negative integrated three-jaw clamping jaw, which drives a supporting piece to move up and down by adjusting the distance of a nut, so that the inclination angle of a hook is changed, and the workpiece is grabbed, in addition, the exchange of positive and negative jaws can be realized by replacing the supporting piece, but the clamping jaw still needs more manual participation, the adjusting nut needs to be frequently screwed in the clamping process, and the clamping efficiency is lower;

therefore, in summary, there is a need in the market for a lifting device capable of automatically clamping a workpiece.

Disclosure of Invention

In order to overcome the defects in the background art, the invention discloses an automatic hanging and releasing lifting appliance for inner hole lifting.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic hanging and releasing lifting appliance for lifting an inner hole comprises a sleeve, a hook, a limiting column, a movable column and a clamping jaw; the top end of the sleeve is correspondingly connected with a hoisting mechanism of the crane, the bottom end cylinder wall of the sleeve is hinged with a plurality of hooks, a limiting column is inserted in the sleeve, and the hook head end of each hook can be correspondingly abutted against the conical bottom surface of the limiting column; the awl bottom surface of spacing post corresponds fixed connection with the head end of activity post, and the shaft of activity post is equipped with the shaft shoulder, is equipped with slidable annular plate between this shaft shoulder and the spacing post, and the shaft of activity post articulates and is equipped with a plurality of jack catchs, and the hole of hoisting work piece can be blocked after the pin joint rotates to the bottom of jack catch, and the top of jack catch corresponds with the sleeve through flexonics spare and is connected.

Preferably, the bottom surface of the annular plate is a tapered surface.

Preferably, the clamping jaw is of an L-shaped structure, a right-angle bending part of the clamping jaw is correspondingly hinged to the column body of the movable column, and the end head of the transverse end of the clamping jaw is correspondingly connected with the sleeve through a flexible connecting piece.

Preferably, the shaft of activity post is equipped with the multiunit mounting panel perpendicularly, and every group mounting panel is established to two, and two mounting panels are located the both sides of jack catch horizontal end respectively, and are equipped with the round pin axle that passes the jack catch horizontal end between two mounting panels.

Preferably, the bottom surface of each group of mounting panel all is equipped with the baffle, is equipped with the clearance between baffle and the movable column.

Preferably, the vertical end heads of the clamping jaws are provided with sawtooth-shaped anti-falling blocks.

Preferably, the movable column is provided with an inner cavity, the outer wall surface of the movable column is provided with a placing hole which is communicated with the inner cavity correspondingly, and the placing hole is used for placing the vertical end of the clamping jaw.

Preferably, the number of the hooks is three, and the three hooks are uniformly distributed.

Preferably, the hooks and the clamping jaws are correspondingly and alternately arranged.

Preferably, the flexible connecting piece is a steel wire rope, a metal chain, a hoisting belt or a rope.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

according to the automatic hanging-releasing lifting appliance for lifting the inner hole, when the hook head end of the hook is abutted against the conical bottom surface of the limiting column, the hook limits the movement of the limiting column, and at the moment, the position of the clamping jaw is kept fixed and is in a withdrawing state; when the hook head end of the hook is separated from and abutted against the conical bottom surface of the limiting column, the limiting column and the movable column move downwards under the influence of gravity, the bottom end of the clamping jaw can rotate along the hinge point through the limiting of the flexible connecting piece, and the height of the clamping jaw is adjusted at the same time until the bottom end of the clamping jaw clamps the inner hole of the workpiece, namely the clamping jaw is in a state of hooking the workpiece; thereby make this hoist can automatic hook get and break away from the work piece, realize the operation of automatic dress card work piece, the effectual manpower and materials of having saved to automatic operation has also improved the efficiency that the work piece was adorned the card, and then has improved the transportation efficiency of frock.

Drawings

FIG. 1 is a schematic diagram of a structure of the present invention.

In the figure: 1. a sleeve; 2. hooking; 3. a limiting post; 4. a movable post; 5. an annular plate; 6. a claw; 601. a transverse end; 602. a vertical end; 7. a flexible connector; 8. a pin shaft; 9. an anti-drop block; 10. mounting a plate; 11. and a baffle plate.

Detailed Description

In the following description, the technical solutions of the present invention will be described with reference to the drawings of the embodiments of the present invention, and it should be understood that, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present invention, and for convenience of describing the present invention, it is not necessary to indicate or imply that the indicated devices or elements have a specific orientation:

the automatic hanging and releasing lifting appliance for inner hole lifting in combination with the attached drawing 1 comprises a sleeve 1, a hook 2, a limiting column 3, a movable column 4 and a clamping jaw 6; the top end of the sleeve 1 is correspondingly connected with a hoisting mechanism of a crane, the hoisting mechanism of the crane can drive the sleeve 1 and a lifting appliance to integrally ascend and descend, the cylinder wall of the bottom end of the sleeve 1 is hinged with a plurality of hooks 2, a limiting column 3 is inserted in the sleeve 1, the hook head end of each hook 2 can be correspondingly abutted against the conical bottom surface of the corresponding limiting column 3, when the corresponding abutment of each hook 2 and the conical bottom surface of the corresponding limiting column 3 is realized, the position of the corresponding limiting column 3 is fixed, at the moment, the corresponding action between the corresponding limiting column 3 and the sleeve 1 cannot occur, at the moment, the movable column 4 is also in a position fixing state, the clamping jaw 6 is kept in a withdrawing state, when the corresponding abutment of the corresponding hook 2 and the conical bottom surface of the corresponding limiting column 3 is not realized, the corresponding limiting column 3 is in a free state, at the moment, the corresponding limiting column 3 moves downwards under the action of gravity, the corresponding movable column 4 also falls along with the corresponding clamping jaw, the clamping jaw 6 is limited by the flexible connecting piece 7 and rotates along a hinged point, the bottom end of the clamping jaw 6 can rotate in a direction far away from the movable column 4, then the hoisting mechanism of the lifting appliance is driven by the hoisting mechanism of the lifting appliance, and the bottom end of the clamping jaw 6 is finally clamped by a plurality of workpieces to be integrally clamped by the clamping jaw 6; according to the requirements, the limiting column 3 is provided with a section of cone, the bottom surface of the cone of the limiting column 3 is a large-diameter concave surface, the large-diameter concave surface is beneficial to hooking the hook 2, the grabbing depth of the hook 2 is increased, the stability of the limiting column 3 in the position fixing process is improved, and therefore the stability of the whole lifting appliance is guaranteed;

the bottom surface of the limiting column 3 is correspondingly and fixedly connected with the head of the movable column, the bottom surface of the limiting column 3 is conical, and the area of the bottom surface of the limiting column 3 is larger than that of the head surface of the movable column; the column body of the movable column 4 is provided with an annular plate 5, the column body of the movable column 4 is hinged with a plurality of clamping jaws 6, the bottom ends of the clamping jaws 6 can be matched with corresponding inner holes of a workpiece after rotating along a hinged joint, the top ends of the clamping jaws 6 are correspondingly connected with the sleeve 1 through flexible connectors 7, when a crane hoisting mechanism drives the lifting appliance to integrally extend into the inner holes of the workpiece, the bottom end of the movable column 4 is contacted with the inner bottom surface of the workpiece, and the lifting appliance still integrally moves downwards, the position of the movable column 4 is not changed, the sleeve 1 continuously falls down until the hook head of the hook 2 is lower than the annular plate 5, as the hook head end of the hook 2 is arc-shaped, the annular plate 5 gradually pushes the hook 2 away from the limiting column 3 in the lifting process, and after the annular plate 5 is abutted against the conical bottom surface of the limiting column 3, the hook 2 is also disengaged from the conical end surface of the limiting column 3, so that the limiting column 3 is in a free state, when a subsequent lifting appliance rises, firstly the sleeve 1 rises along with the lifting appliance, then when the added length of the sleeve 1 and the limiting rod is larger than the added length of the sleeve 1 and the limiting rod when the hook 2 is in a withdrawing state, the claws 6 rotate along the hinged points under the action of the flexible connecting pieces 7 of the claws 6, the bottom ends of the claws 6 rotate towards the direction far away from the movable column 4, then under the matching of the lifting appliance driven by a crane lifting mechanism to integrally rise, the bottom ends of the claws 6 finally extend into corresponding inner holes of a workpiece, so that the workpiece is integrally clamped through the plurality of claws 6, in addition, the flexible connecting pieces 7 can be set into steel wire ropes, metal chains, lifting belts or ropes, wherein the metal chains have the advantages of simple structure, high material hardness, strong integral structure and low cost, so that the optimal selection is realized;

in addition, the jaw 6 is designed to be an L-shaped structure, the right-angle bending part of the jaw 6 is correspondingly hinged with the column body of the movable column 4, the end head 601 of the transverse end of the jaw 6 is correspondingly connected with the sleeve 1 through the flexible connecting piece 7, wherein the length of the vertical end 602 of the jaw 6 is greater than that of the transverse end 601, because the transverse end 601 of the jaw 6 is in a horizontal state and the vertical end 602 of the jaw 6 is in a vertical state when the jaw 6 is in a withdrawing state, the lifting appliance can smoothly enter the inner hole of a workpiece, in addition, the hinge point is positioned at the right-angle bending part, so that the vertical end 602 of the jaw 6 has the largest rotating radius when the jaw 6 rotates, and the vertical end 602 of the jaw 6 can more easily enter the inner hole of the workpiece, particularly, the end head 602 of the vertical end of the jaw 6 is provided with the zigzag anti-falling block 9, the tightness of the connection between the end head 602 of the jaw 6 and the workpiece can be improved, and the firmness of the clamping between the lifting appliance and the workpiece is ensured; according to the requirements, a plurality of groups of mounting plates 10 are vertically arranged on the column body of the movable column 4, each group of mounting plates 10 is divided into two pieces, the two mounting plates 10 are respectively positioned at two sides of the transverse end 601 of the clamping jaw 6, a pin shaft 8 penetrating through the transverse end 601 of the clamping jaw 6 is arranged between the two mounting plates 10, the transverse end 601 of the clamping jaw 6 can be protected in a withdrawing state through the mounting plates 10, and the clamping jaw 6 can be conveniently disassembled and assembled, particularly, a baffle plate 11 is arranged on the bottom surface of each group of mounting plates 10, a gap is arranged between the baffle plate 11 and the movable column 4, the baffle plate 11 can not block the rotation of the clamping jaw 6, and can limit the lowest position of the transverse end 601 of the clamping jaw 6, and when the transverse end 601 of the clamping jaw 6 is abutted against the baffle plate 11, the clamping jaw 6 is in the withdrawing state; in addition, the movable column 4 is provided with an inner cavity, the outer wall surface of the movable column 4 is provided with a placing hole correspondingly communicated with the inner cavity, the placing hole is used for placing the vertical end 602 of the clamping jaw 6, and the placing hole can effectively protect the vertical end 602 of the clamping jaw 6 when the clamping jaw 6 is in a withdrawing state; according to the requirements, the number of the hooks 2 is three, the three hooks 2 are uniformly distributed, and the number of the hooks 2 and the number of the clamping claws 6 are three, so that the stability of the whole structure of the lifting appliance can be ensured, the lifting appliance can be stably clamped with a workpiece, the production cost of the lifting appliance can be saved, and the perfect balance of performance and cost is realized; specially, couple 2 and jack catch 6 correspond crisscross setting, can avoid mutual interference between couple 2 and the jack catch 6, just also further improved the overall stability of this hoist.

When the automatic hanging and releasing lifting tool for inner hole lifting is implemented, when a workpiece is lifted, the clamping claws 6 are in a withdrawing state, then the lifting tool is driven by the crane lifting mechanism to integrally enter the inner hole of the workpiece, when the bottom end of the movable column 4 is in contact with the inner bottom surface of the workpiece and the lifting tool still integrally moves downwards, the sleeve 1 drives the hook 2 to descend to the lower part of the annular plate 5, the crane lifting mechanism drives the lifting tool to ascend, the sleeve 1 drives the hook 2 to ascend, the hook head of the hook 2 hooks the annular plate 5 to ascend until the annular plate 5 is abutted against the conical end surface of the limiting column 3, and as the hook head end of the hook 2 is arc-shaped, the annular plate 5 can gradually push the hook 2 away from the annular plate 5 in the process that the sleeve 1 and the hook 2 continuously ascend until the hook 2 smoothly runs through the cone of the limiting column 3, and the limiting column 3 is in a free state at the moment; the subsequent hoisting mechanism of the crane drives the sleeve 1 and the upper part of the flexible connecting piece 7 to ascend, the clamping jaw 6 rotates along a hinged point under the action of the flexible connecting piece 7, the bottom end of the clamping jaw 6 can rotate towards the direction far away from the movable column 4, and the bottom end of the clamping jaw 6 finally clamps an inner hole of a workpiece to be hoisted, so that the workpiece is integrally clamped through the plurality of clamping jaws 6.

When the workpiece needs to be taken down, the lifting mechanism is firstly lifted by the crane to drive the lifting appliance to integrally descend, when the workpiece is placed on the ground, the limiting column 3, the movable column 4 and the clamping jaws 6 are in a fixed state, the lifting mechanism and the lifting appliance continue to descend, the sleeve 1 and the hook 2 descend along the limiting column 3, the hook 2 descends to the bottom of the conical end face along the cone of the limiting column 3, the flexible connecting piece 7 is in a loose state at the moment, the clamping jaws 6 rotate along the hinged point under the action of gravity of the clamping jaws 6 and the flexible connecting piece 7, the clamping jaws 6 are retracted into the limiting column 3, the lifting mechanism and the lifting appliance rotate to ascend, the limiting column 3 is separated from an inner hole of the workpiece, and the separation of the lifting appliance and the workpiece is completed.

The invention is not described in detail in the prior art, and it is apparent to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claims.

Claims (10)

1. The utility model provides an inner hole hoist and mount are with hanging off hoist from moving which characterized by: comprises a sleeve (1), a hook (2), a limit column (3), a movable column (4) and a clamping jaw (6); the top end of the sleeve (1) is correspondingly connected with a hoisting mechanism of a crane, the bottom end cylinder wall of the sleeve (1) is hinged with a plurality of hooks (2), a limiting column (3) is inserted in the sleeve (1), and the hook head end of each hook (2) can be correspondingly abutted against the conical bottom surface of the limiting column (3); the bottom surface of spacing post (3) corresponds fixed connection with the head end of activity post (4), and the shaft of activity post (4) is equipped with the shaft shoulder, is equipped with slidable annular plate (5) between this shaft shoulder and spacing post (3), and the shaft of activity post (4) articulates and is equipped with a plurality of jack catchs (6), and the hole of hoisting by crane the work piece can be blocked after the pin joint is rotated to the bottom of jack catch (6), and the top of jack catch (6) is passed through flexonics spare (7) and is corresponded with sleeve (1) and be connected.

2. The automatic hanging and releasing hanger for hoisting the inner hole as claimed in claim 1, which is characterized in that: the bottom surface of the annular plate (5) is set to be a conical surface.

3. The automatic hanging and releasing hanger for hoisting the inner hole as claimed in claim 1, which is characterized in that: the clamping jaw (6) is of an L-shaped structure, a right-angle bending part of the clamping jaw (6) is correspondingly hinged with a column body of the movable column (4), and the end head of the transverse end (601) of the clamping jaw (6) is correspondingly connected with the sleeve (1) through the flexible connecting piece (7).

4. The automatic hanging and releasing hanger for inner hole hoisting as claimed in claim 3, which is characterized in that: the shaft of activity post (4) is equipped with multiunit mounting panel (10) perpendicularly, and every group mounting panel (10) is established to two, and two mounting panels (10) are located the both sides of jack catch (6) horizontal end (601) respectively, and are equipped with round pin axle (8) that pass jack catch (6) horizontal end (601) between two mounting panels (10).

5. The automatic hanging and releasing hanger for hoisting the inner hole as claimed in claim 4, which is characterized in that: each group the bottom surface of mounting panel (10) all is equipped with baffle (11), is equipped with the clearance between baffle (11) and activity post (4).

6. The automatic hanging and releasing hanger for hoisting the inner hole as claimed in claim 3, which is characterized in that: the vertical end (602) of the claw (6) is provided with a sawtooth-shaped anti-falling block (9).

7. The automatic hanging and releasing hanger for hoisting the inner hole as claimed in claim 3, which is characterized in that: the movable column (4) is provided with an inner cavity, the outer wall surface of the movable column (4) is provided with a placing hole which is correspondingly communicated with the inner cavity, and the placing hole is used for placing a vertical end (602) of the clamping jaw (6).

8. The automatic hanging and releasing hanger for hoisting the inner hole as claimed in claim 1, which is characterized in that: the number of the hooks (2) is three, and the three hooks (2) are uniformly distributed.

9. The automatic hanging and releasing hanger for hoisting the inner hole as claimed in claim 8, which is characterized in that: the hook (2) and the claw (6) are correspondingly arranged in a staggered manner.

10. The automatic hanging and releasing hanger for hoisting the inner hole as claimed in claim 1, which is characterized in that: the flexible connecting piece (7) is a steel wire rope, a metal chain, a hoisting belt or a rope.

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