CN111960255B

CN111960255B - Automatic unhooking mechanism for hoisting equipment

Info

Publication number: CN111960255B
Application number: CN202010783453.1A
Authority: CN
Inventors: 史建凯
Original assignee: Longyou Power Supply Co Of State Grid Zhejiang Electric Power Co ltd
Current assignee: Longyou Power Supply Co Of State Grid Zhejiang Electric Power Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2022-11-11
Anticipated expiration: 2040-08-06
Also published as: CN111960255A

Abstract

The invention relates to the technical field of hoisting equipment and discloses an automatic unhooking mechanism for hoisting equipment, which comprises a hanging hook, wherein an oil storage cavity is arranged inside the top end of the hanging hook, an elastic pressing plate is arranged at the bottom of the inner cavity of the oil storage cavity, a hoisting pulley is fixedly arranged in the middle of the top end of the hanging hook, an oil through hole is formed in the top of the inner cavity of the oil storage cavity and communicated with the inside of the hoisting pulley, a supporting connecting rod is connected to one side of the top end of the hanging hook in a threaded manner, and a unhooking sliding plate is clamped in the middle of the inner cavity of the hanging hook. This an automatic unhook mechanism for lifting device for unhook slide plate inner chamber bottom arc curved surface structure's setting for when the unhook slide plate upwards slides under the spring action of recompression spring, cause the rope that hangs on hanging the lifting hook to lean on its border position always until the rope breaks away from hanging the lifting hook completely, further improved this automatic unhook mechanism stability and smoothness nature in the use.

Description

Automatic unhooking mechanism for hoisting equipment

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to an automatic unhooking mechanism for hoisting equipment.

Background

The hoisting equipment is an important component for cargo handling in industrial and mechanized production, and in order to optimize the hoisting process and reduce the labor intensity of personnel, the automatic unhooking lifting appliance has come to be capable of automatically realizing the separation of a lifting hook and a rope after the hoisting is finished, and the manual interference and unhooking action are not needed any more.

If provide a be equipped with first support and second support in the novel lifting hook with automatic unhook structure in application number CN201920985092.1, the upper end hinged joint of second support has first support, and the spring passes through elastic deformation, makes first support and second support drive the couple body and overturn, is convenient for this novel lifting hook to accomplish automatic unhook, nevertheless, this kind of lifting hook that can unhook automatically has following technical defect:

1. when the novel lifting hook is at an initial position, the hook body is always in a horizontal state, and in order to prevent a rope hung on the hook body from slipping off, the rope needs to be manually held when the rope is hung until the hook body is stressed and deflected;

2. this novel lifting hook when carrying out automatic unhook to the rope, needs rope self roll-off from the horizontally couple body, and the rope of hoist and mount has certain toughness because of self, and non-deformable is crooked, causes it to withstand the phenomenon that the inner wall of couple body and cause can't drop easily at not atress.

Therefore, there is a need for an autonomous unhooking mechanism, which can actively unhook a rope to prevent the rope from being unable to unhook normally or unhooking incompletely, which can pull the goods during the process of receiving the unhooking.

Disclosure of Invention

Technical problem to be solved

The invention provides an automatic unhooking mechanism for hoisting equipment, which has the advantages of being capable of actively unhooking a rope, avoiding the phenomenon that the placed goods are dragged due to incomplete unhooking, and being high in safety and stability.

(II) technical scheme

The invention provides the following technical scheme: the utility model provides an automatic unhook mechanism for lifting device, is including hanging the lifting hook, the inside that hangs the lifting hook top is equipped with the oil storage chamber, the bottom that stores up oil intracavity chamber is equipped with elastic pressing plate, the middle part fixed mounting that hangs the lifting hook top has the hoist and mount pulley, and the top that stores up oil intracavity chamber is equipped with the inside of oil through hole and hoist and mount pulley and be linked together, one side threaded connection who hangs the lifting hook top has the support link, the middle part joint that hangs the lifting hook inner chamber has the unhook slide, and the inside one side of unhook slide is equipped with the joint recess, the inside and the activity that the bottom of support link runs through and extends to the joint recess have cup jointed the repressing spring.

Preferably, the positive and negative two sides of unhook slide one side all are equipped with a set of spout, and hang the both sides of lifting hook inner chamber one side and all be equipped with the slip ball, and on the unhook slide spout with hang between the slip ball on the lifting hook rolling friction be connected.

Preferably, the inner cavity of the hanging hook is designed to be an inverted U-shaped structure, and the bottom end of the inner cavity penetrates through and extends to the bottom of the hanging hook.

Preferably, the minimum elastic force of the return spring is larger than the gravity of the unhooking sliding plate.

Preferably, the bottom of the inner cavity of the unhooking sliding plate is provided with an arc-shaped curved surface structure, and the left side of the bottom end of the curved surface structure extends to the outside of the hanging hook.

(III) advantageous effects

The invention has the following beneficial effects:

1. this an automatic unhook mechanism for lifting device, to the exterior structure and the unhook slide that hang the lifting hook, the setting of repressing spring, make and hang the lifting hook and can remain vertical state throughout when initial condition, make things convenient for people to hang the rope and prevent that the rope from dropping out, and simultaneously, when the unhook slide is not atress, utilize the elasticity of repressing spring can be complete extrude the rope away, compare with current unhook technique, when carrying out the unhook action to the rope, not rely on the self of rope to come the roll-off lifting hook, but an effort is applyed to it automatically, in order to force the rope to break away from, can't unhook appear because of the toughness of self in order to prevent the rope, or the phenomenon of incomplete unhook, cause the phenomenon of dragging the goods when receiving the hook, stability and reliability are higher.

2. This an automatic unhook mechanism for lifting device for unhook slide plate inner chamber bottom arc curved surface structure's setting for when the unhook slide plate upwards slides under the spring action of recompression spring, cause the rope that hangs on hanging the lifting hook to lean on its border position always until the rope breaks away from hanging the lifting hook completely, further improved this automatic unhook mechanism stability and smoothness nature in the use.

3. This an automatic unhook mechanism for lifting device to the setting of the style of calligraphy of falling U structure in hanging the lifting hook inner chamber for the unhook slide can be downslide always when receiving the pressure of rope, until the rope with hang the bottom contact and the atress of lifting hook inner chamber, make the top of unhook slide can slide down to certain displacement back simultaneously, make its and hang a latched device of formation that can be automatic between the arc couple on the lifting hook, in order to increase the security of this lifting hook when hoist and mount goods.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an internal cross-sectional view of a suspension hook constructed in accordance with the present invention;

fig. 3 is a schematic structural view of the unhooking skateboard of the present invention.

In the figure: 1. hanging a lifting hook; 2. an oil storage chamber; 3. an elastic pressure plate; 4. hoisting pulleys; 5. an oil through hole; 6. a support link; 7. unhooking the sliding plate; 8. clamping the groove; 9. a spring is pressed again; 10. a chute; 11. sliding the balls.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-3, an automatic unhooking mechanism for a hoisting device, comprising a hanging hook 1, an oil storage chamber 2 is arranged inside the top end of the hanging hook 1, an elastic pressing plate 3 is arranged at the bottom of the inner chamber of the oil storage chamber 2, a hoisting pulley 4 is fixedly arranged in the middle of the top end of the hanging hook 1, an oil through hole 5 is arranged at the top of the inner chamber of the oil storage chamber 2 and is communicated with the inside of the hoisting pulley 4, a supporting connecting rod 6 is connected with one side of the top end of the hanging hook 1 through a thread, an unhooking sliding plate 7 is connected with the middle of the inner chamber of the hanging hook 1 in a clamping manner, a clamping groove 8 is arranged on one side of the inside of the unhooking sliding plate 7, and a repressing spring 9 is sleeved in a movable manner and penetrates through the bottom end of the supporting connecting rod 6 and extends to the inside of the clamping groove 8.

Wherein, to the setting in oil storage chamber 2, elastic pressure plate 3 and oil through hole 5 to in good time fill lubricating oil in the inner chamber in oil storage chamber 2, and through elastic pressure plate 3 and oil through hole 5 with its spraying to the hoist and mount rope on, in order to lubricate the operation to it, reduce its and hoist and mount pulley 4 or the friction between the reel.

In this technical scheme, the tow sides of unhook slide 7 one side all are equipped with a set of spout 10, and the both sides of hanging 1 inner chamber one side of lifting hook all are equipped with sliding ball 11, and on the unhook slide 7 spout 10 with hang sliding ball 11 on the lifting hook 1 between rolling friction be connected.

The sliding grooves 10 and the sliding balls 11 are arranged, so that the unhooking sliding plate 7 can stably and smoothly slide upwards under the action of the elastic force of the return spring 9 when not being pulled by goods, excessive friction cannot be caused between the supporting connecting rod 6 and the unhooking sliding plate 7, and the phenomenon that the rope cannot completely separate from the hanging hook 1 due to the fact that the rope is blocked is caused.

Among this technical scheme, the inner chamber that hangs lifting hook 1 establishes to the structure of falling the U style of calligraphy, and its bottom runs through and extends to the bottom that hangs lifting hook 1.

Wherein, to the setting of the style of calligraphy of falling U structure in the 1 inner chamber of suspension lifting hook for unhook slide 7 can be slided downwards all the time when receiving the pressure of rope, and until the rope with hang the bottom contact atress of 1 inner chamber of lifting hook, make simultaneously unhook slide 7's top can slide to certain distance down, so that it and hang and form sealed lock between the arc couple on the lifting hook 1 and die, security and stability are higher.

In the technical scheme, the minimum elastic force of the return spring 9 is larger than the gravity of the unhooking sliding plate 7.

Wherein, to the setting of elasticity size on the return spring 9 for unhook slide 7 is when not atress, is in behind initial position under its elasticity effect, hangs and can form an opening between lifting hook 1 and the unhook slide 7, so that people can get into and hang on hanging lifting hook 1 through this opening when hoist and mount goods rope.

Among this technical scheme, the bottom of 7 inner chambers of unhook slide is equipped with arc curved surface structure, and the left side of its curved surface structure bottom extends to the outside of hanging lifting hook 1.

The arrangement of the arc-shaped curved surface structure at the bottom of the inner cavity of the unhooking sliding plate 7 enables the unhooking sliding plate 7 to slide upwards under the elastic action of the restoring spring 9, so that a rope hung on the hanging hook 1 can always lean against the edge position until the rope is completely separated from the hanging hook 1, and the stability and the fluency of the automatic unhooking mechanism in the using process are ensured.

The use method and the working principle of the embodiment are as follows:

firstly, a hanging hook 1 is hung on a reel through a hoisting pulley 4, the minimum elastic force of a repressing spring 9 is larger than the self weight of a unhooking sliding plate 7, so that the unhooking sliding plate 7 is always positioned above the hanging hook 1, a gap is formed between the hanging hook 1 and the unhooking sliding plate 7, then a rope on the goods is clamped on the hanging hook 1 through the gap, then the reel is started to drive the hanging hook 1 to move upwards, under the action of the gravity of the goods and the pulling force of the reel, the unhooking sliding plate 7 is extruded by the rope to move downwards and compress the repressing spring 9 until the rope on the goods is contacted with the bottom of an inner cavity of the hanging hook 1, meanwhile, the top end of the unhooking sliding plate 7 slides downwards and gradually seals the top end of the hanging hook 1, then under the pulling force of the reel, when the goods are moved to a proper position and placed, the influence of the gravity of the goods and the pulling force of the reel is lost, and under the elastic force of the repressing spring 9, the unhooking sliding plate 7 is gradually extruded upwards, the rope is extruded at the bottom of the inner cavity of the rope and the hanging hook is continuously moved to the bottom of the inner cavity, and the hanging hook is automatically unhooking operation is completed until the rope 1 is separated from the bottom of the hanging hook.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic unhook mechanism for lifting device, is including hanging lifting hook (1), its characterized in that: an oil storage cavity (2) is arranged inside the top end of the suspension hook (1), the bottom of the inner cavity of the oil storage cavity (2) is provided with an elastic pressure plate (3), a hoisting pulley (4) is fixedly arranged in the middle of the top end of the suspension hook (1), and the top of the inner cavity of the oil storage cavity (2) is provided with an oil through hole (5) communicated with the inside of the hoisting pulley (4), one side of the top end of the suspension hook (1) is in threaded connection with a support connecting rod (6), the middle part of the inner cavity of the suspension hook (1) is clamped with a unhooking sliding plate (7), and one side inside the unhooking sliding plate (7) is provided with a clamping groove (8), the bottom end of the supporting connecting rod (6) penetrates through and extends into the clamping groove (8) and is movably sleeved with a re-pressing spring (9), the front and back surfaces of one side of the unhooking sliding plate (7) are respectively provided with a group of sliding chutes (10), both sides of one side of the inner cavity of the suspension hook (1) are provided with sliding balls (11), and the upper chute (10) of the unhooking sliding plate (7) is in rolling friction connection with the sliding ball (11) on the hanging hook (1), the inner cavity of the hanging hook (1) is in an inverted U-shaped structure, the bottom end of the hook is penetrated and extended to the bottom of the hanging hook (1), the bottom of the inner cavity of the unhooking sliding plate (7) is provided with an arc-shaped curved surface structure, and the left side of the bottom end of the curved surface structure extends to the outside of the hanging hook (1).

2. The automatic unhooking mechanism for hoisting equipment according to claim 1, characterized in that: the minimum elastic force of the re-pressing spring (9) is larger than the gravity of the unhooking sliding plate (7).