Damping anti-swing lifting hook combination

Abstract

The utility model relates to the field of hoisting equipment, and discloses a damping anti-swing lifting hook combination, which comprises a lifting hook main body and a pulley connected with the lifting hook main body, the pulley is positioned above the lifting hook main body, two ends of the pulley are respectively provided with a support ring, the two support rings are connected through a connecting rod, and the connecting rod is connected with the lifting hook main body. The connecting rod penetrates through the pulley, and a damping arm used for eliminating swing is rotationally installed on the connecting rod. When the electric hoist is suddenly started or stopped, the lifting hook main body can swing back and forth clockwise and anticlockwise due to the action of inertia, and the damping arm can swing in the direction opposite to the lifting hook main body due to the fact that the damping arm is rotationally connected with the connecting rod and the action of inertia, so that the swing amount is reduced, and the swing time is shortened; the combination is simple in structure, low in cost and convenient to disassemble, assemble and maintain, does not need to be controlled by an additional system, and can autonomously perform reverse swing adjustment.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment field, concretely relates to a damping anti-swing hook combination. BACKGROUND

[0002] The hook is a component directly connected with the heavy object in the hoisting system of the crane, and the heavy object is firmly hung under the hoisting mechanism of the crane through connecting members such as ropes (such as steel wire ropes) and chains; when the hoisting motor of the crane operates, the ropes or chains are driven to ascend through components such as the winding drum and the pulley block, and the hoisting force is transmitted to the heavy object through the hook, so that the heavy object is hoisted by overcoming the gravity.

[0003] When the hoisting mechanism of the crane starts or stops the hoisting operation, the hook and the hoisted heavy object will tend to maintain the original static or motion state due to inertia, thereby causing the hook to swing; the violent swinging of the hook may cause the heavy object to collide with the surrounding personnel, equipment or buildings; meanwhile, the hoisting precision is affected, and for some operations that require accurate placement of the heavy object, such as installation of large machinery and erection of bridge components, the swinging of the hook will cause the heavy object to be difficult to accurately positioned at the predetermined position.

[0004] Now many cranes are equipped with anti-swing devices, and these devices mainly control the operating parameters of the crane or use mechanical, hydraulic and electronic means to suppress the swinging of the hook. For example, some anti-swing devices use a gyroscope sensor to detect the swinging angle and speed of the hook, and then adjust the operation of the crane trolley and the car through the control system to offset the swinging; however, most of the existing anti-swing devices have complex structure, high cost, and are not easy to install and maintain. SUMMARY

[0005] The utility model aims at overcoming the deficiency in the prior art, and provides a damping anti-swing hook combination, when the hook swings back and forth in the clockwise and counterclockwise directions, the damping arm generates swinging in the opposite direction of the hook, thereby reducing the swinging amount and time.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0007] A damping anti-swing hook combination, comprising a hook body and a pulley connected with the hook body, the pulley is located above the hook body, both ends of the pulley are provided with a support ring, two support rings are connected through a connecting rod, the connecting rod penetrates the pulley, and a damping arm for eliminating swinging is rotatably installed on the connecting rod.

[0008] Optionally, a through hole for the connecting rod to pass through is formed on the pulley near the edge, and the damping arm is located in the through hole.

[0009] Optionally, a shaft sleeve is sleeved on the connecting rod, and the shaft sleeve is located between the supporting ring and the damping arm.

[0010] Optionally, the connecting rod is a screw, one end of the screw is penetrated through the damping arm, the two supporting rings and the shaft sleeve, and the one end of the screw is screwed with a nut.

[0011] Optionally, a wheel frame is connected to the top of the hook body, the pulley is rotatably installed on the wheel frame, and the supporting ring is fixedly connected with the pulley.

[0012] Optionally, a mounting hole is formed in the center of the pulley, a pin shaft is fixedly installed on the wheel frame, and the pulley is rotatably sleeved on the pin shaft through the mounting hole.

[0013] Optionally, the pulley and the supporting ring are coaxial with the pin shaft, and the pin shaft and the connecting rod are axially parallel to each other.

[0014] Optionally, the connecting rod is arranged in the upper portion of the damping arm, and the gravity center of the damping arm is located in the lower portion.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] When the electric hoist is suddenly started or stopped, the hook body will swing back and forth in clockwise and counterclockwise directions due to the effect of inertia, the damping arm will swing in the opposite direction of the hook body due to the rotation connection with the connecting rod and the effect of inertia, so that the swing amount is reduced, and the swing time is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structure schematic view of the damping anti-swing hook combination in the embodiment of the utility model;

[0018] Figure 2 is a position structure schematic view of the pulley and the supporting ring in the embodiment of the utility model;

[0019] Figure 3 is a structure schematic view of the pulley in the embodiment of the utility model;

[0020] Figure 4 is Figure 3 a sectional structure schematic view of A-A section in the embodiment of the utility model;

[0021] Figure 5 is a structure schematic view of the supporting ring in the embodiment of the utility model;

[0022] Figure 6It is the position structure schematic view of the supporting ring and the damping arm in the embodiment of the utility model;

[0023] Wherein, 1, hook body;2, wheel frame;3, pin shaft;4, pulley;401, mounting hole;402, through hole;403, rope groove;5, supporting ring;6, damping arm;7, connecting rod;8, shaft sleeve. DETAILED DESCRIPTION

[0024] The utility model will be explained further in detail by combining with the drawings and the embodiment, these drawings are all simplified schematic view, only with the schematic way the basic structure of the utility model is explained, therefore it only shows the related structure of the utility model.

[0025] As Figure 1 Shown, a kind of damping anti-swing hook combination, including hook body 1, pulley 4 and the damping assembly for eliminating swing;Pulley 4 is located above hook body 1 and is connected with its rotation by wheel frame 2, damping assembly is installed on pulley 4;When electric hoist is suddenly started or stopped, due to the effect of inertia, hook body 1 will produce back and forth swing in clockwise, counterclockwise direction, similarly, damping assembly will produce swing in opposite direction with hook body 1, to reduce swing amount, reduce swing time.

[0026] As Figure 1 、 Figure 3 And Figure 4 Shown, the center position of pulley 4 is provided with mounting hole 401, mounting hole 401 is coaxial with pulley 4, a plurality of through holes 402 are provided on the circumferential side of mounting hole 401, a plurality of through holes 402 are distributed on pulley 4 near edge in circumferential array around the axis of mounting hole 401, and rope groove 403 for sleeving rope is provided on the outer circumferential surface of pulley 4.Hook body 1 is connected with pulley 4 by wheel frame 2, pulley 4 is connected with electric hoist by rope, so electric hoist can drive pulley 4 to lift by rope, to drive hook body 1 to realize lifting in turn.

[0027] Hook body 1 is installed at the bottom of wheel frame 2, and pin shaft 3 is fixedly installed on wheel frame 2;Bearing is installed in mounting hole 401, and pin shaft 3 penetrates bearing;Namely, pulley 4 is rotatably sleeved on pin shaft 3 by mounting hole 401.

[0028] Above, pin shaft 3 passes through mounting hole 401, the inner ring of bearing is fixedly sleeved on pin shaft 3, the outer ring is fixedly embedded in mounting hole 401, and rolling element is arranged between the inner ring and the outer ring of bearing;Based on this, pulley 4 is rotated around the axis of pin shaft 3 relative to wheel frame 2 and hook body 1.

[0029] As Figure 2 、 Figure 5 And Figure 6As shown, the damping assembly comprises two oppositely arranged support rings 5 fixedly installed on the end face of the pulley 4, the two support rings 5 are connected through a connecting rod 7, the connecting rod 7 penetrates through the pulley 4 along the through hole 402, a damping arm 6 for eliminating swing is rotatably installed on the connecting rod 7, and the damping arm 6 is located in the through hole 402 and can freely rotate around the connecting rod 7 within 360 degrees.

[0030] Wherein, the support ring 5 can rotate synchronously with the pulley 4, and the pulley 4 and the support ring 5 are coaxial with the pin shaft 3, and the axial directions of the pin shaft 3 and the connecting rod 7 are parallel to each other; when the hook body 1 swings back and forth in clockwise and counterclockwise directions relative to the axis of the pulley 4 due to inertia, the damping arm 6 swings in the through hole 402 in the opposite direction of the hook body 1, thereby reducing the swing amount and reducing the swing time.

[0031] Further, the longitudinal section of the damping arm 6 is approximately fan-shaped, and the upper and lower ends thereof are outwardly convex; and the connecting rod 7 is arranged at the upper part of the damping arm 6, and the center of gravity of the damping arm 6 is located at the lower part; in this way, it can be ensured that the lower part of the damping arm 6 has sufficient counterweight to generate damping swing in the opposite direction when the hook body 1 swings.

[0032] In order to avoid the axial movement of the damping arm 6 along the connecting rod 7 during rotation, a shaft sleeve 8 is arranged on the connecting rod 7, and the shaft sleeve 8 is located between the support ring 5 and the damping arm 6; that is, two shaft sleeves 8 are arranged on each connecting rod 7 and are distributed on the front and rear sides of the damping arm 6.

[0033] In addition, the connecting rod 7 is a screw, one end of the screw penetrates through the damping arm 6, the two support rings 5 and the shaft sleeve 8, and is screw-connected with a nut; that is, the screw-connected end of the screw penetrates through the support ring 5, the shaft sleeve 8, the damping arm 6, the shaft sleeve 8 and the support ring 5 in sequence, and the nut is installed on the end, so as to ensure that the connecting rod 7 can be stably installed on the support ring 5.

[0034] In summary, the damping anti-swing hook combination can improve safety, has simple and compact structure, is low in cost and convenient to popularize, when the electric hoist is suddenly started or stopped, the hook body 1 swings back and forth in clockwise and counterclockwise directions, the damping arm 6 swings in the through hole 402 in the opposite direction of the hook body 1, thereby reducing the swing amount and reducing the swing time.

[0035] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation based on the orientation or positional relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0036] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0037] According to the ideal embodiments of the utility model, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the contents in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A damping anti-swing hook assembly comprising a hook body (1) and a pulley (4) connected to the hook body (1), the pulley (4) being located above the hook body (1), characterized in that: Both ends of the pulley (4) are provided with support rings (5), the two support rings (5) are connected through connecting rods (7), the connecting rods (7) penetrate the pulley (4), and damping arms (6) for eliminating swing are rotatably installed on the connecting rods (7).

2. The damping anti-swing hook assembly according to claim 1, characterized in that: A through hole (402) for the connecting rods (7) to penetrate is formed on the pulley (4) near the edge, and the damping arms (6) are located in the through hole (402).

3. The combination of claim 2, wherein: A shaft sleeve (8) is sleeved on the connecting rod (7), and the shaft sleeve (8) is located between the support ring (5) and the damping arm (6).

4. The combination of claim 3, wherein: The connecting rod (7) is provided with a screw, one end of the screw penetrates the damping arm (6), the two support rings (5) and the shaft sleeve (8), and is screw-connected with a nut.

5. The combination of claim 4, wherein: The upper portion of the hook body (1) is connected with a wheel frame (2), the pulley (4) is rotatably installed on the wheel frame (2), and the support ring (5) is fixedly connected with the pulley (4).

6. The anti-swing hanger assembly of claim 5, wherein: A mounting hole (401) is formed at the center position of the pulley (4), a pin shaft (3) is fixedly installed on the wheel frame (2), and the pulley (4) is rotatably sleeved on the pin shaft (3) through the mounting hole (401).

7. The anti-swing hanger assembly of claim 6, wherein: The pulley (4) and the support ring (5) are coaxial with the pin shaft (3), and the pin shaft (3) and the connecting rod (7) are axially parallel to each other.

8. The anti-swing hanger assembly of claim 7, wherein: The connecting rod (7) penetrates the upper portion of the damping arm (6), and the gravity center of the damping arm (6) is located in the lower portion.

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