CN118221023B

CN118221023B - Hoist protection device

Info

Publication number: CN118221023B
Application number: CN202410657995.2A
Authority: CN
Inventors: 毛亚洲; 秦先锋; 马涛; 郭冬青; 马润祎; 史绍林; 杨利利
Original assignee: Henan Liqi Heavy Industry Co ltd; Henan Institute of Engineering
Current assignee: Henan Liqi Heavy Industry Co ltd; Henan Institute of Engineering
Priority date: 2024-05-27
Filing date: 2024-05-27
Publication date: 2024-07-23
Anticipated expiration: 2044-05-27
Also published as: CN118221023A

Abstract

The invention relates to the technical field of crane hoisting equipment, and discloses a crane hoisting protection device which comprises an annular supporting seat and a plurality of layers of reels which are sleeved from inside to outside and are used for winding steel wire ropes; the center of the innermost winding drum is connected with a central shaft for connecting with power equipment; the end part of the outermost winding drum is rotationally connected to the inner side of the supporting seat; the end parts of the adjacent winding drums are rotationally connected; one side of the winding drum is provided with a strip-shaped hole which is parallel to the axial direction of the winding drum and is used for a steel wire rope to pass through; the end part of the winding drum is provided with an escapement component, and the escapement component enables adjacent winding drums and the outermost winding drum and the supporting seat to be connected or separated; the invention has a multi-layer winding drum structure, each layer of winding drum winds a single layer of steel wire rope, the multi-layer winding drum realizes the winding of the multi-layer steel wire rope, the interference between layers is avoided, and the rope disorder is avoided; a channel for the strip-shaped hole forming layer and the layer steel wire rope to pass through; the multi-layer winding drum can sequentially act from inside to outside to wind the steel wire rope, and conversely, the steel wire rope is released.

Description

Hoist protection device

Technical Field

The invention relates to the technical field of crane hoisting equipment, in particular to a crane hoisting protection device.

Background

When winding the steel wire rope, the winding drum of the crane winding equipment can be divided into single-layer winding and multi-layer winding, wherein the single-layer winding has stronger stability and good supporting property for the steel wire rope, and the rope disorder phenomenon of the winding of the steel wire rope is reduced; and in the large-lift winding process, the steel wire rope is wound in a multi-layer winding mode, so that the large-lift and longer steel wire rope is wound, but when the winding drum winds the multi-layer steel wire rope, the winding compactness of the steel wire rope is insufficient, interference between layers can be caused under the extrusion of the layers, and further the rope disorder in the winding and unwinding process of the steel wire rope is caused. Therefore, the invention provides a hoist winch protection device which can wind a plurality of layers of steel wire ropes, avoid interference between layers of the steel wire ropes and protect the steel wire ropes from being disordered.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provide a crane winch protection device.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a hoist protecting device of a crane comprises an annular supporting seat and a plurality of layers of reels which are sleeved in sequence from inside to outside and are used for winding a steel wire rope; the center of the innermost winding drum is connected with a central shaft for connecting with power equipment; the end part of the outermost winding drum is rotationally connected to the inner side of the supporting seat; the end parts of the adjacent winding drums are rotationally connected; one side of the winding drum is provided with a strip-shaped hole which is parallel to the axial direction of the winding drum and is used for a steel wire rope to pass through; the end of the winding drum is provided with an escapement component which enables the adjacent winding drums and the outermost winding drum and the supporting seat to be connected or separated.

Further, annular bosses are arranged at the two ends of the winding drums, and gaps for accommodating the steel wire ropes are formed between the adjacent winding drums through the bosses.

Further, all be equipped with revolution mechanic between adjacent reel and the supporting seat outside, revolution mechanic includes annular groove and annular bulge, and annular bulge rotates along the annular groove inboard.

Further, a spiral groove for limiting winding of the steel wire rope is formed in the outer side of the winding drum.

Further, the escapement assembly comprises a plurality of electromagnets and a plurality of annular plates, the ends of the winding drum and the supporting seat are connected with the annular plates, and a plurality of limiting holes are uniformly distributed on the circumference of the annular plates; the number of the electromagnets on the outer side of the same winding drum is the same as that of the limiting holes of each annular plate, and the circumferences of the electromagnets are uniformly arranged on the outer side of the end part of the winding drum.

Further, in the state that the electromagnet at the outer side of a certain winding drum is in a power-off state, the iron core of the electromagnet stretches into a limiting hole of an annular plate connected with the winding drum or a supporting seat at the outer side of the winding drum, and the annular plate connected with the winding drum at the inner side of the winding drum is not interfered; when the electromagnet at the outer side of the winding drum is in a power-on state, the iron core stretches into a limiting hole of the annular plate connected with the winding drum at the inner side of the winding drum and does not interfere with the annular plate connected with the winding drum or the supporting seat at the outer side of the winding drum.

Further, the outer side of the winding drum is connected with a conductive ring which supplies power to the electromagnet and rotates along with the winding drum; still include the static contact with the conducting ring contact, the power cord is connected to the static contact, and the junction of static contact and power cord is equipped with the switch.

Compared with the prior art, the invention has the following beneficial effects:

The invention has a multi-layer winding drum structure, each layer of winding drum winds a single layer of steel wire rope, the multi-layer winding drum realizes the winding of the multi-layer steel wire rope, the interference between layers is avoided, and the rope disorder is avoided; a channel for the strip-shaped hole forming layer and the layer steel wire rope to pass through; the escapement assembly enables the multi-layer winding drums to sequentially act from inside to outside, namely, the winding drums from inside to outside sequentially realize linkage winding of the steel wire rope, otherwise, the winding drums can sequentially release from outside to inside and are connected with the outer support seat, and smooth release of the steel wire rope is realized.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

Fig. 2 is an enlarged schematic view of a portion of fig. 1.

Fig. 3 is a schematic perspective view of a first side view of the present invention.

Fig. 4 is a schematic view of a second side view perspective of the present invention.

Fig. 5 is a schematic view of a first side view structure of the present invention in a non-wire rope condition.

Fig. 6 is a schematic view of a second side view angle structure of the present invention in a non-wire rope state.

Fig. 7 is a schematic diagram of the connection of the control part of the present invention.

Fig. 8 is a schematic view of a first side view of a coiled wire rope according to the present invention.

Fig. 9 is a schematic view of a second side view angle structure of the wire rope in a wound state according to the present invention.

Fig. 10 is a schematic view of the structure of the outer frame of the present invention.

FIG. 11 is a schematic view of the inside reel structure of the present invention.

FIG. 12 is a schematic view of the outside reel structure of the present invention.

Fig. 13 is a schematic view of an escapement assembly of the present invention.

Fig. 14 is a schematic view of a part of the annular plate structure of the present invention.

Fig. 15 is a schematic view of a first side view electromagnet connection according to the present invention.

Fig. 16 is a schematic diagram of a second side view angle electromagnet connection according to the present invention.

In the figure: 1. a reel; 2. a boss; 3. a support base; 4. a central shaft; 5. a bar-shaped hole; 6. an escapement assembly; 7. a stationary contact; 8. a switch; 9. a first detector; 10. a second detector; 11. a controller; 12. a key slot; 13. a base; 14. a support rod; 15. an annular groove; 16. an annular protrusion; 17. a spiral groove; 18. a wire rope;

61. an annular plate; 62. a limiting hole; 63. an electromagnet; 64. a conductive ring; 65. an insulating ring sleeve.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

It is noted that relational terms such as "first" and "second", and the like, are 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. Moreover, 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.

In the description of the present invention, the terms "mounted," "connected," "coupled," and "connected," as may be used broadly, and may be connected, for example, fixedly, detachably, or integrally, unless otherwise specifically defined and limited; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in specific cases.

In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the term "provided" may be interpreted broadly, and for example, an object "provided" may be a part of a body, may be separately disposed from the body, and may be connected to the body, where the connection may be a detachable connection or an undetachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in specific cases.

The invention provides a concrete embodiment of a crane winch protection device, which comprises the following components:

Referring to fig. 1-16, the hoist protecting device of the crane comprises a base 13, an annular supporting seat 3 and a plurality of layers of reels 1 which are sleeved in sequence from inside to outside and are used for winding a steel wire rope 18; the number of the supporting seats 3 is two, and the supporting seats are fixedly arranged on the upper side of the base 13 in parallel and correspond to the two end parts of the winding drum 1.

In this embodiment, the number of the reels 1 is two, wherein the inner reels 1 are solid structures and the outer reels 1 are cylindrical structures. The center of the inner reel 1 is connected with a central shaft 4 for connection with a power device, and in other embodiments, the inner reel 1 may be provided in a cylindrical structure and connected with the central shaft 4 through a frame. One end of the central shaft 4 is provided with a key groove 12, the key groove 12 is convenient to structure, the central shaft 4 is connected with an output shaft of a speed reducer through a coupler, and an input end of the speed reducer is connected with a motor and can drive the central shaft 4 and the inner side winding drum 1 to rotate.

The end part of the outer winding drum 1 is rotationally connected to the inner side of the supporting seat 3; the end parts of the two reels 1 are rotationally connected; annular bosses 2 are arranged at the two ends of the winding drums 1, and gaps for accommodating the steel wire ropes 18 are formed between the adjacent winding drums 1 by the bosses 2. And rotating structures are arranged between the winding drums 1 and between the outer winding drums 1 and the supporting seat 3, each rotating structure comprises an annular groove 15 and an annular bulge 16, and the annular bulge 16 rotates along the inner side of the annular groove 15. In this embodiment, the outer ring sides of the end bosses 2 of the two drums 1 are respectively provided with an annular groove 15, and the inner ring sides of the end bosses 2 of the outer drums 1 and the inner ring sides of the supporting seats 3 are respectively provided with an annular protrusion 16 rotating along the annular grooves 15, so that stable support is realized for the rotation of the two drums 1.

In the embodiment, one side of the outer winding drum 1 is provided with a strip-shaped hole 5 which is parallel to the axial direction of the outer winding drum and is used for a steel wire rope 18 to pass through; in the embodiment, the inner drum 1 adopts a solid structure, the strip-shaped holes 5 can be omitted, in other embodiments, the two side walls of the strip-shaped holes 5 are rotatably provided with rollers, and when the steel wire rope 18 passes through the strip-shaped holes 5, the rollers replace the walls of the strip-shaped holes 5 to be contacted with the steel wire rope 18, so that friction on the steel wire rope 18 can be reduced, and the steel wire rope 18 is protected.

The spiral grooves 17 for limiting the winding of the steel wire rope 18 are formed on the outer sides of the two drums 1, in this embodiment, the spiral grooves 17 on the outer sides of the two drums 1 are opposite in rotation direction, and because the steel wire rope 18 is opposite in axial winding direction, when the drums 1 rotate in the same direction, the two drums 1 can both wind or release the steel wire rope 18.

The ends of the reels 1 are provided with escapement assemblies 6, the escapement assemblies 6 making a connection or disconnection between the reels 1 and between the outer reels 1 and the support 3.

In this embodiment, the escapement assembly 6 enables the outer reels 1 to form a connection and fixation with the support 3 while the two reels 1 are separated; and can separate the outer winding drum 1 from the supporting seat 3 while the two winding drums 1 form connection follow-up.

Specifically, the escapement assembly 6 comprises a plurality of electromagnets 63 and a plurality of annular plates 61, the ends of the winding drum 1 and the supporting seat 3 are connected with the annular plates 61, and a plurality of limiting holes 62 are uniformly distributed on the circumference of the annular plates 61; in this embodiment, the electromagnets 63 are all located outside the end of the outer drum 1, the number of the electromagnets 63 outside the end of the outer drum 1 is the same as the number of the limiting holes 62 of each annular plate 61, and the electromagnets 63 are circumferentially and uniformly arranged outside the end of the outer drum 1. In other embodiments, the electromagnet 63 need not be provided for the inner central drum 1 when more drums 1 are provided, but the electromagnet 63 is provided outside the drum 1 between the central drum 1 and the support 3. In addition, the annular plates 61 and the same number of limiting holes 62 are provided on the outer side of the end portions of each spool 1 and the support base 3 due to the need of connection or separation.

The electromagnet 63 includes an iron core penetrating through the body, a coil is arranged in the body, a spring is arranged outside the electromagnet to enable the iron core to extend into the limit hole 62 on one side, and when the coil is powered on, the iron core is enabled to move to the other side against the force of the spring through magnetic force to enter the limit hole 62 on the other side. In this embodiment, in a state in which the electromagnet 63 provided outside the end portion of the outer reel 1 is in a power-off state, the iron core extends into the limiting hole 62 of the annular plate 61 connected to the reel 1 or the support base 3 on the outer ring side of the reel 1, and does not interfere with the annular plate 61 connected to the reel 1 on the inner ring side of the reel 1; in the state where the electromagnet 63 on the outer side of the spool 1 is energized, the iron core extends into the limit hole 62 of the annular plate 61 connected to the spool 1 on the inner ring side of the spool 1, and does not interfere with the annular plate 61 connected to the spool 1 or the support base 3 on the outer side of the spool 1.

The outer side of the end part of the outer winding drum 1 is connected with a conductive ring 64 which supplies power to the electromagnet 63 and rotates along with the outer winding drum 1; in this embodiment, the outer end of the annular plate 61 outside the outer drum 1 is provided with an insulating ring sleeve 65, and the insulating ring sleeve 65 is located outside the conductive ring 64, so that the conductive ring 64 is separated from the annular plate 61. The device also comprises a fixed contact 7 contacted with the conductive ring 64, a support rod 14 is arranged on the upper side of the base 13, and the upper end of the support rod 14 supports the fixed contact 7. The fixed contact 7 is connected with a power line, and a switch 8 is arranged at the joint of the fixed contact 7 and the power line. The power line is controlled by the on-off of the switch 8 to supply power to the static contact 7, and further to supply power to the conducting ring 64 and the electromagnet 63.

In the embodiment, a first detector 9 is arranged at a boss 2 of the tail end of the inner winding drum 1, which winds the steel wire rope 18, and a second detector 10 is arranged at a boss 2 of the head end of the outer winding drum 1, which winds the steel wire rope 18; in some embodiments, the controller 11 may be configured to receive signals from a detector, which may employ a photosensor.

In the initial stage of winding the wire rope 18, the outer reel 1 is connected with the supporting seat 3, only the inner reel 1 rotates, the strip-shaped hole 5 of the outer reel 1 is positioned at the lower part, and the wire rope 18 passes through the strip-shaped hole 5 and is wound outside the inner reel 1. When the inner winding drum 1 winds the steel wire rope 18 to the tail end, the steel wire rope 18 is detected by the first detector 9, the controller 11 controls the switch 8 to electrify the static contact 7, the conducting ring 64 and the electromagnet 63 are electrified, at the moment, the iron core of the electromagnet 63 stretches into the limit hole 62 of the annular plate 61 at the end part of the inner winding drum 1, the two winding drums 1 are linked, the outer winding drum 1 is not connected with the supporting seat 3 any more, at the moment, the steel wire rope 18 does not enter the strip-shaped hole 5 any more, but winds the outer side of the outer winding drum 1, and the steel wire rope is detected by the second detector 10. When the wire rope 18 is released by reverse rotation, the wire rope 18 is released to the head end of the outer winding drum 1, which is wound around the wire rope 18, and separated from the second detector 10, the controller 11 receives a signal that the wire rope 18 is separated after being detected by the second detector 10, the control switch 8 is powered off, the electromagnet 63 is powered off, the outer winding drum 1 is connected with the supporting seat 3, at the moment, only the inner winding drum 1 rotates to release the wire rope 18, and the wire rope 18 is released through the strip-shaped hole 5 of the outer winding drum 1.

It should be noted that the above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, but may be modified without inventive effort or equivalent substitution of some technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hoist protection device of hoist, its characterized in that: comprises an annular supporting seat (3) and a plurality of layers of reels (1) which are sleeved in sequence from inside to outside and are used for winding a steel wire rope (18); the center of the innermost winding drum (1) is connected with a central shaft (4) for connecting with power equipment; the end part of the outermost winding drum (1) is rotationally connected to the inner side of the supporting seat (3); the end parts of the adjacent winding drums (1) are rotationally connected; one side of the winding drum (1) is provided with a strip-shaped hole (5) which is parallel to the axial direction of the winding drum and is used for a steel wire rope (18) to pass through; the end part of the winding drum (1) is provided with an escapement assembly (6), and the escapement assembly (6) enables connection or separation between the adjacent winding drums (1) and between the outermost winding drum (1) and the supporting seat (3);

The escapement assembly (6) comprises a plurality of electromagnets (63) and a plurality of annular plates (61), the ends of the winding drum (1) and the supporting seat (3) are connected with the annular plates (61), and a plurality of limiting holes (62) are uniformly distributed on the circumference of the annular plates (61); the number of the electromagnets (63) on the outer side of the same winding drum (1) is the same as that of the limit holes (62) of each annular plate (61), and the electromagnets (63) are uniformly circumferentially arranged on the outer side of the end part of the winding drum (1);

When the electromagnet (63) at the outer side of a certain winding drum (1) is in a power-off state, the iron core of the electromagnet (63) stretches into a limiting hole (62) of an annular plate (61) connected with the winding drum (1) at the outer side of the winding drum (1) or a supporting seat (3), and the annular plate (61) connected with the winding drum (1) at the inner side of the winding drum (1) is not interfered; the electromagnet (63) at the outer side of the winding drum (1) is in a power-on state, the iron core stretches into a limiting hole (62) of an annular plate (61) connected with the winding drum (1) at the inner side of the winding drum (1), and the iron core does not interfere with the annular plate (61) connected with the winding drum (1) or the supporting seat (3) at the outer side of the winding drum (1);

The outside of the winding drum (1) is connected with a conductive ring (64) which supplies power to the electromagnet (63) and rotates along with the winding drum (1); still include with the static contact (7) of conducting ring (64) contact, the power cord is connected to static contact (7), and the junction of static contact (7) and power cord is equipped with switch (8).

2. The crane hoist protection device of claim 1, characterized in that: annular bosses (2) are arranged at two ends of each winding drum (1), and gaps for accommodating steel wire ropes (18) are formed between adjacent winding drums (1) through the bosses (2).

3. Crane hoist protection arrangement according to claim 1 or 2, characterized in that: and rotating structures are arranged between the adjacent winding drums (1) and the outermost winding drums (1) and the supporting seat (3), each rotating structure comprises an annular groove (15) and an annular bulge (16), and the annular bulge (16) rotates along the inner side of the annular groove (15).

4. The crane hoist protection device of claim 1, characterized in that: the outside of the winding drum (1) is provided with a spiral groove (17) for limiting the winding of the steel wire rope (18).