CN113321139B - Lifting hook assembly and lifting machinery - Google Patents

Abstract

The invention provides a lifting hook assembly and a lifting machine. The hook assembly includes: the lifting appliance is rotationally arranged at the end part of the suspension arm through the rotation mechanism and used for driving the lifting appliance to horizontally rotate, and the lifting hook is suspended at two ends of the lifting appliance. According to the lifting hook assembly, the lifting appliance is rotatably arranged at the end part of the suspension arm by utilizing the rotation mechanism, and the lifting hooks suspended at the two ends of the lifting appliance are driven to rotate horizontally together by the horizontal rotation of the lifting appliance, so that the situation that the heavy object can rotate horizontally in the lifting process is realized, the position and the posture are adjusted, the lifting operation and adjustment of the overlong heavy object or the irregular heavy object are convenient, the operation is simple, and the stability is high.

Description

Lifting hook assembly and lifting machinery

Technical Field

The invention relates to the technical field of hoisting machinery, in particular to a lifting hook assembly and hoisting machinery.

Background

For hoisting of super-long containers and other horizontal super-long objects, the existing transfer vehicle hoisting structure has single function, can only work on containers with regular shapes, is vertically lifted and fixed, and can enable heavy objects to vertically lift by rotating the amplitude lifting appliance at the same time by two sections of lifting arms.

The existing method is generally realized by adopting a double-machine lifting crane or a front crane. However, the double-crane lifting requires two cranes with the same tonnage to operate simultaneously, the operation difficulty is high, the danger coefficient is high, the operation efficiency is low, and the actions such as larger-field rotation reversing are required; the front crane lifting appliance is fixed, the upper vehicle cannot rotate, the overlong irregular object is inconvenient to lift, the requirements on the transfer site and the transfer working condition are relatively high, and the front crane lifting appliance is only suitable for port transfer and cannot be suitable for conditions such as in-warehouse, platform and field transfer.

Disclosure of Invention

The invention provides a lifting hook assembly and a lifting machine, which are used for solving the defects that in the prior art, only a container with a regular shape can be operated, an object cannot be subjected to air posture adjustment, the operation is complicated and the operation stability is poor.

The present invention provides a hook assembly comprising:

a lifting appliance;

the lifting hooks are hung at two ends of the lifting appliance;

and the lifting appliance is rotationally arranged at the end part of the suspension arm through the rotation mechanism and is used for driving the lifting appliance to horizontally rotate.

According to the lifting hook assembly provided by the invention, the slewing mechanism comprises a slewing supporting head, a first oil cylinder and a second oil cylinder, the lifting appliance is connected with the slewing supporting head through a rotating shaft, one end of the first oil cylinder is connected with the lifting appliance, the other end of the first oil cylinder is connected with the slewing supporting head, one end of the second oil cylinder is connected with the lifting appliance, and the other end of the second oil cylinder is connected with the slewing supporting head.

According to the lifting hook assembly provided by the invention, the upper part of the rotary supporting head is provided with the mounting part which is used for being connected with the suspension arm; the lower part of the rotary support head is provided with a first connecting part and a second connecting part, the first connecting part is connected with one end of the first oil cylinder, and the second connecting part is connected with one end of the second oil cylinder.

According to the lifting hook assembly provided by the invention, the first oil cylinder and the second oil cylinder are symmetrically arranged along the center of the rotary supporting head.

According to the lifting hook assembly provided by the invention, the lifting hook assembly further comprises a first supporting arm and a second supporting arm, one end of the first supporting arm is hinged to the first end of the lifting appliance, one end of the second supporting arm is hinged to the second end of the lifting appliance, and pulleys used for guiding the steel wire ropes are arranged at the other end of the first supporting arm and the other end of the second supporting arm.

According to the lifting hook assembly provided by the invention, the lifting hook assembly further comprises a third oil cylinder and a fourth oil cylinder, wherein the third oil cylinder is connected between the first supporting arm and the lifting appliance, the fourth oil cylinder is connected between the second supporting arm and the lifting appliance, and the third oil cylinder and the fourth oil cylinder are used for driving the first supporting arm and the second supporting arm to be unfolded or recovered.

According to the lifting hook assembly provided by the invention, the lifting hook assembly further comprises a first locking mechanism and a second locking mechanism, wherein the first locking mechanism is arranged at the hinge position of the lifting appliance and the first supporting arm and used for locking the rotation of the first supporting arm, and the second locking mechanism is arranged at the hinge position of the lifting appliance and the second supporting arm and used for locking the rotation of the second supporting arm.

According to the lifting hook assembly provided by the invention, the lifting hook further comprises a first winch and a second winch, the first winch and the second winch are respectively arranged in the lifting appliance, the first winch and the second winch are provided with steel wire ropes, and the lifting hook is suspended at two ends of the lifting appliance through the steel wire ropes.

The invention also provides a hoisting machine comprising: the suspension arm comprises a vehicle body, a suspension arm and a suspension hook assembly, wherein one end of the suspension arm is hinged to the vehicle body, and the suspension hook assembly is arranged at the other end of the suspension arm.

According to the present invention there is provided a hoisting machine, the body comprising:

the chassis is arranged on the vehicle body and provided with a plurality of supporting legs;

a turntable arranged on the vehicle body and hinged with the suspension arm;

and one end of the fifth oil cylinder is hinged to the rotary table, and the other end of the fifth oil cylinder is hinged to the middle part of the suspension arm.

According to the lifting hook assembly, the lifting appliance can be rotatably arranged at the end part of the lifting arm by using the rotating mechanism, and the lifting hooks hung at the two ends of the lifting appliance can be driven to rotate horizontally together by the horizontal rotation of the lifting appliance, so that the situation that the heavy object can rotate horizontally in the lifting process is realized, the position and the posture are adjusted, the lifting operation and adjustment of the overlong heavy object or the irregular heavy object are convenient, the operation is simple, and the stability is high.

Further, the present invention provides a lifting machine having the above-described hook assembly and therefore having the above-described advantages.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a hook assembly according to the present invention;

FIG. 2 is a schematic front view of a hook assembly according to the present invention in a non-operative condition;

FIG. 3 is a schematic front view of a hook assembly according to the present invention in an operative condition;

FIG. 4 is a schematic top view of the hook assembly provided by the present invention in a first operational state;

FIG. 5 is a schematic top view of the hook assembly of the present invention in a second operational configuration;

FIG. 6 is a schematic front view of a hook assembly according to the present invention in a third operational configuration;

FIG. 7 is a schematic front view of a hook assembly according to the present invention in a fourth operational state;

FIG. 8 is a schematic view of a structure of a pivoting support head provided by the present invention;

fig. 9 is a schematic structural view of a hoisting machine according to the present invention.

Reference numerals:

1: a chassis; 2: a support leg; 3: a turntable;

4: a fifth oil cylinder; 5: a suspension arm; 6: a hook assembly;

601: a lifting appliance; 602: a lifting hook; 610: a rotary support head;

611: a mounting part; 612: a first connection portion; 613: a second connecting portion;

620: a first cylinder; 630: a second cylinder; 640: a first support arm;

650: a second support arm; 660: a third cylinder; 670: a fourth cylinder;

680: a first winch; 690: a second winch; 7: a wire rope;

8: a pulley; 9: and a weight.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

A hook assembly 6 of the present invention is described below in connection with figures 1 to 8, comprising: a lifting appliance 601, a slewing mechanism and a lifting hook 602; the lifting hooks 602 are hung at two ends of the lifting appliance 601;

the lifting appliance 601 is rotatably arranged at the end part of the suspension arm 5 through a rotation mechanism and is used for driving the lifting appliance 601 to horizontally rotate.

In this embodiment, the hook assembly 6 is mounted to the end of the boom 5, specifically: the lifting appliance 601 is rotatably arranged on the suspension arm 5 through a rotation mechanism, and the lifting appliance 601 can be driven to perform rotation motion through the rotation mechanism; at least two lifting hooks 602 are respectively hung at two ends of the lifting appliance 601 by traction of the steel wire ropes 7, the high and low positions of the corresponding lifting hooks 602 are controlled by controlling the retraction of the steel wire ropes 7, and the heavy objects 9 are correspondingly lifted by the lifting hooks 602.

Specifically, the overall shape of the hanger 601 is in a "U" shape or a "V" shape, and according to practical situations, the hanger 601 may also take other shapes, which the present invention is not limited to. The lifting appliance 601 has light overall weight, can be carried on a vehicle and is free from assembly.

According to the lifting hook assembly 6 provided by the invention, the lifting appliance 601 can be rotatably arranged at the end part of the suspension arm 5 by utilizing the rotation mechanism, and the lifting hooks 602 suspended at the two ends of the lifting appliance can be driven to rotate horizontally together by the horizontal rotation of the lifting appliance 601, so that the purpose that the heavy object 9 can rotate horizontally in the lifting process, the pose is adjusted, the lifting operation and adjustment of an overlong heavy object or an irregular heavy object are facilitated, the operation is simple, and the stability is high.

In one embodiment, the swing mechanism includes a swing support head 610, a first cylinder 620 and a second cylinder 630, the lifting tool 601 is connected to the swing support head 610 through a rotation shaft, one end of the first cylinder 620 is connected to the lifting tool 601, the other end is connected to the swing support head 610, one end of the second cylinder 630 is connected to the lifting tool 601, and the other end is connected to the swing support head 610. Specifically, the above-mentioned rotation shaft is the rotation center of the hoist 601, and passes through the center holes of the slewing bearing head 610 and the hoist 601, and drives the hoist 601 to horizontally rotate by using the first oil cylinder 620 and the second oil cylinder 630.

Further, as shown in fig. 8, the upper part of the pivoting support head 610 is provided with a mounting part 611 for connection with the boom 5; the lower part of the rotary support head 610 is provided with a first connecting part 612 and a second connecting part 613, the first connecting part 612 is connected with one end of a first oil cylinder 620, the other end of the first oil cylinder 620 is connected with a lifting appliance 601, the second connecting part 613 is connected with one end of a second oil cylinder 630, the other end of the second oil cylinder 630 is connected with the lifting appliance 601, and the lifting appliance 601 can horizontally rotate by driving the first oil cylinder 620 and the second oil cylinder 630. Specifically, the mounting portion 611 of the pivoting support head 610 may be a through hole, the pivoting support head 610 is mounted on the boom 5 through the fastening member, the first connecting portion 612 and the second connecting portion 613 may be connecting pieces, the first oil cylinder 620 and the second oil cylinder 630 are hinged between the corresponding connecting pieces and the lifting tool 601, and the lifting tool 601 is driven to perform the pivoting motion relative to the pivoting support head 610 through the telescopic motion of the first oil cylinder 620 and the second oil cylinder 630. The hook assembly 6 is in the first working state shown in fig. 4, and the first oil cylinder 620 and the second oil cylinder 630 are used for driving, so that the hook assembly 6 drives the weight 9 to rotate, and is in the second working state, namely, as shown in fig. 5. The rotary support head 610 in this embodiment has the advantages of simple structure, light weight, strong rigidity, and the like.

In one embodiment, the first cylinder 620 and the second cylinder 630 are symmetrically disposed along the center of the pivoting support head 610, and the first cylinder 620 and the second cylinder 630 provide forces of the same magnitude and opposite directions, so as to drive the lifting tool 601 to perform a pivoting motion about a rotation center (i.e., a rotation axis).

In one embodiment, the hook assembly 6 further comprises a first support arm 640 and a second support arm 650, one end of the first support arm 640 being hinged to a first end of the spreader 601, one end of the second support arm 650 being hinged to a second end of the spreader 601, and the other end of the first support arm 640 and the other end of the second support arm 650 being provided with a fixed pulley 8 for guiding the wire rope 7. In this embodiment, the first support arm 640 and the second support arm 650 can rotate around two ends of the hanger 601, and the wire rope 7 is connected to the hook 602 after passing around the fixed pulley 8 to change direction. In the inactive state, the first support arm 640 and the second support arm 650 are in the retracted state, i.e., as shown in fig. 2; in the operative state, the first support arm 640 and the second support arm 650 are in the deployed state, i.e., as shown in fig. 3. In this embodiment, by rotating the first support arm 640 and the second support arm 650, the rope-entering angle of the wire rope 7 is reduced, the rope-entering deflection angle of the wire rope 7 is ensured, the rope is prevented from being released, the recovery is performed in the non-working state, and the width of the whole hook assembly 6 is reduced.

In one embodiment, the hook assembly 6 further comprises a third cylinder 660 and a fourth cylinder 670, the third cylinder 660 being connected between the first support arm 640 and the spreader 601, the fourth cylinder 670 being connected between the second support arm 650 and the spreader 601, the third cylinder 660 and the fourth cylinder 670 being used to drive the first support arm 640 and the second support arm 650 to extend or retract. In the present embodiment, the first support arm 640 and the second support arm 650 are driven to rotate about respective rotation axes by the telescopic movement of the third oil cylinder 660 and the fourth oil cylinder 670, thereby achieving both the retracted and extended states.

Based on the above embodiments, it should be understood that other power devices may be used for the oil cylinder, and only the hydraulic oil cylinder is used to control the oil cylinder more accurately, so that the oil cylinder is more suitable for application situations.

In one embodiment, the hook assembly 6 further comprises a first locking mechanism and a second locking mechanism, the first locking mechanism is disposed at the hinge between the hanger 601 and the first support arm 640 for locking the rotation of the first support arm 640, and the second locking mechanism is disposed at the hinge between the hanger 601 and the second support arm 650 for locking the rotation of the second support arm 650. In this embodiment, the rotation limits of the first support arm 640 and the second support arm 650 are controlled by the first locking mechanism and the second locking mechanism, respectively, so as to avoid the failure of the hook assembly 6 caused by excessive rotation amounts of the first support arm 640 and the second support arm 650. It will be appreciated that the first locking mechanism and the second locking mechanism may be implemented in one of the form of a locking pin, an angle limiter, and a pin with other locking mechanisms.

In one embodiment, the hook assembly 6 further includes a first winch 680 and a second winch 690, the first winch 680 and the second winch 690 are respectively disposed inside the hanger 601, and the first winch 680 and the second winch 690 are provided with a wire rope 7, and the hook 602 is suspended at two ends of the hanger 601 by the wire rope 7. In this embodiment, the first winch 680 and the second winch 690 are respectively used for driving the corresponding wire rope 7, and the lifting state of the lifting hook 602 is controlled by using the winding and unwinding state of the wire rope 7. In this embodiment, the lifting appliance 601 is a hollow structure, and the first winch 680 and the second winch 690 may be disposed inside the lifting appliance 601. In this embodiment, as shown in fig. 6 and 7, the inclination angle of the weight 9 can be adjusted by controlling the first winch 680 and the second winch 690, so that the first winch 680 and the second winch 690 control the extending length of the wire rope 7 to be consistent through a complex environment, for example, as shown in fig. 6, at this time, the weight 9 is lifted horizontally, and if one of the winches is controlled to move, the extending lengths of the wire ropes 7 at two ends are different, at this time, the weight 9 can be inclined, that is, as shown in fig. 7.

In summary, based on the above-mentioned embodiments, the hook assembly 6 of the present invention can be switched between the non-working state and the working state, and adjusted between the first working state, the second working state, the third working state and the fourth working state by using the corresponding cylinders and the winch drive, specifically:

1. in the non-operating state, as shown in fig. 2, the first support arm 640 and the second support arm 650 are in the recovery state by being driven by the third oil cylinder 660 and the fourth oil cylinder 670;

2. in the working state, as shown in fig. 3, the first support arm 640 and the second support arm 650 are in the unfolded state by being driven by the third oil cylinder 660 and the fourth oil cylinder 670;

3. in the first working state, as shown in fig. 4, the lifting appliance 601 and the lifting hook 602 horizontally rotate to the first pose by using the driving of the first oil cylinder 620 and the second oil cylinder 630;

4. in the second working state, as shown in fig. 5, the lifting appliance 601 and the lifting hook 602 horizontally rotate to the second position by using the driving of the first oil cylinder 620 and the second oil cylinder 630;

5. in the third working state, as shown in fig. 6, the first winch 680 and the second winch 690 are used for driving, so that the extending lengths of the steel wire ropes 7 at the two ends are consistent, and the weight 9 is in a horizontal state at the moment;

6. in the fourth operating state, as shown in fig. 7, the weight 9 is inclined when the wire rope 7 on one side is extended longer than the other side by driving with the first and second winches 680 and 690.

As shown in fig. 9, the present invention also provides a hoisting machine including: the suspension arm 5 is hinged to the vehicle body at one end, and the suspension arm 5 and the suspension hook assembly 6 according to the above embodiment are mounted at the other end of the suspension arm 5.

It will be appreciated that the hook assembly 6 may also be mounted to other work machines to perform a lifting function, depending on the application.

In one embodiment, the vehicle body comprises a chassis 1, a turntable 3 and a fifth oil cylinder 4, wherein the chassis 1 is arranged on the vehicle body, and a plurality of supporting legs 2 are arranged on the chassis 1; the turntable 3 is arranged on the car body and is hinged with the suspension arm 5; one end of the fifth oil cylinder 4 is hinged to the turntable 3, and the other end of the fifth oil cylinder 4 is hinged to the middle of the suspension arm 5.

Specifically, an all-ground walking chassis 1 is adopted, front wheels can be independently turned when a normal road passes through, all-wheel turning can be realized on an operation site, turning radius is small, an independent suspension system is suitable for walking transition of a complex road condition in the wild, four support legs 2 are horizontally stretched out and drawn back from the chassis 1 through horizontal oil cylinders, and the chassis 1 is vertically stretched out and drawn back through vertical oil cylinders.

The turntable 3 is connected with the chassis 1 through a roller bearing and a gear disc, and is rotated by a hydraulic speed reducer and a pinion to drive the turntable 3 to drive the upper part of the vehicle body to rotate 360 degrees, so that the lifting hook assembly 6 is driven to horizontally rotate around the turntable 3 through the suspension arm 5.

The boom 5 is hinged with the turntable 3, the fifth oil cylinder 4 adopts an amplitude-variable oil cylinder, the upper end of the fifth oil cylinder is hinged with the middle part of the boom 5, the lower end of the fifth oil cylinder is hinged with the turntable 3, the pitching action of the boom 5 is completed through the telescopic movement of the amplitude-variable oil cylinder, and the interior of the boom 5 is driven to extend and retract by the action of an independent telescopic oil cylinder.

According to the embodiment, the lifting machine disclosed by the invention is provided with the lifting hook assembly 6, so that the weight 9 can horizontally rotate in the lifting process, the position and the posture can be adjusted, the lifting operation of the overlong weight 9 or the irregular weight 9 can be conveniently performed, the operation is simple, and the stability is high.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. A hook assembly, comprising:

a lifting appliance;

the lifting hooks are hung at two ends of the lifting appliance;

the lifting appliance is rotatably arranged at the end part of the suspension arm through the rotation mechanism and is used for driving the lifting appliance to horizontally rotate;

one end of the first supporting arm is hinged to the first end of the lifting appliance;

and one end of the second supporting arm is hinged to the second end of the lifting appliance, and pulleys used for guiding the steel wire ropes are arranged at the other end of the first supporting arm and the other end of the second supporting arm.

2. The hook assembly of claim 1, wherein the swivel mechanism comprises a swivel support head, a first cylinder and a second cylinder, the spreader is connected to the swivel support head by a rotation shaft, one end of the first cylinder is connected to the spreader, the other end is connected to the swivel support head, one end of the second cylinder is connected to the spreader, and the other end is connected to the swivel support head.

3. The hook assembly of claim 2, wherein an upper portion of the swivel support head is provided with a mounting portion for connection with the boom; the lower part of the rotary support head is provided with a first connecting part and a second connecting part, the first connecting part is connected with one end of the first oil cylinder, and the second connecting part is connected with one end of the second oil cylinder.

4. The hook assembly of claim 2, wherein the first cylinder and the second cylinder are centrally symmetrically disposed along the swivel support head.

5. The hook assembly of claim 1, further comprising a third cylinder connected between the first support arm and the spreader and a fourth cylinder connected between the second support arm and the spreader, the third cylinder and the fourth cylinder for driving the first support arm and the second support arm to extend or retract.

6. The hook assembly of claim 1, further comprising a first locking mechanism disposed at the hinge of the spreader and the first support arm for locking rotation of the first support arm and a second locking mechanism disposed at the hinge of the spreader and the second support arm for locking rotation of the second support arm.

7. The hook assembly of claim 1, further comprising a first winch and a second winch, the first winch and the second winch being disposed within the spreader, respectively, and a wire rope being disposed on the first winch and the second winch, the hook being suspended from both ends of the spreader by the wire rope.

8. A hoisting machine, comprising: a vehicle body, a boom arm, and a hook assembly as claimed in any one of claims 1 to 7, one end of the boom arm being hinged to the vehicle body, the hook assembly being mounted to the other end of the boom arm.

9. The hoisting machine of claim 8, wherein the vehicle body comprises:

the chassis is arranged on the vehicle body and provided with a plurality of supporting legs;

a turntable arranged on the vehicle body and hinged with the suspension arm;

and one end of the fifth oil cylinder is hinged to the rotary table, and the other end of the fifth oil cylinder is hinged to the middle part of the suspension arm.

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