CN113321139A - Lifting hook assembly and lifting machinery - Google Patents

Abstract

The invention provides a lifting hook assembly and a lifting machine. This lifting hook subassembly includes: the lifting appliance is arranged at the end part of the lifting arm in a rotating mode and used for driving the lifting appliance to horizontally rotate, and the lifting hook is suspended at the two ends of the lifting appliance. According to the hook assembly provided by the invention, the swing mechanism is utilized to rotatably arrange the lifting appliance at the end part of the lifting arm, and the lifting hook suspended at the two ends of the lifting appliance is driven to rotate horizontally by the horizontal rotation of the lifting appliance so as to rotate horizontally and adjust the pose of a heavy object in the lifting process, so that the lifting operation and the adjustment of an overlong heavy object or an 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 ultra-long containers and other horizontal ultra-long objects, the existing turning cart hoisting structure has single function, only can operate containers in regular shapes, is fixed in a vertical hoisting mode, and can enable a heavy object to vertically hoist by rotating two sections of hoisting arms with variable amplitude at the same time.

The method is generally realized by adopting a double-crane lifting crane or a front crane. However, the double-crane lifting needs two cranes with the same tonnage to operate simultaneously, so that the operation difficulty is high, the danger coefficient is high, the operation efficiency is low, and actions such as rotation and reversing are needed in a larger field; the front-side lifting appliance is fixed, the front-side lifting appliance cannot rotate when getting on the train, the ultra-long irregular objects are inconvenient to lift, the requirements on the transfer site and the transfer working condition are high, and the front-side lifting appliance is only suitable for port transfer and cannot be suitable for the conditions of storage, platform, field transfer and the like.

Disclosure of Invention

The invention provides a lifting hook assembly and lifting machinery, which are used for solving the defects that in the prior art, only containers with regular shapes can be operated, the aerial posture of an object cannot be adjusted, the operation is complicated, and the operation stability is poor.

The present invention provides a hook assembly comprising:

a spreader;

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

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

According to the hook assembly provided by the invention, the slewing mechanism comprises a slewing support head, a first oil cylinder and a second oil cylinder, the lifting appliance is connected with the slewing support 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 support 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 support head.

According to the 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 supporting 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 hook assembly provided by the invention, the first oil cylinder and the second oil cylinder are arranged along the center of the rotary supporting head in a symmetrical mode.

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 for guiding a steel wire rope are arranged at the other end of the first supporting arm and the other end of the second supporting arm.

The lifting hook assembly further comprises a third oil cylinder and a fourth oil cylinder, 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 retracted.

The hook assembly further comprises a first locking mechanism and a second locking mechanism, wherein the first locking mechanism is arranged at the hinged 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 hinged position of the lifting appliance and the second supporting arm and used for locking the rotation of the second supporting arm.

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

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

According to a hoisting machine provided by the present invention, the vehicle body includes:

the chassis is arranged on the vehicle body, and a plurality of support legs are arranged on the chassis;

the rotary table is arranged on the vehicle body and is hinged with the suspension arm;

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 of the suspension arm.

According to the hook assembly provided by the invention, the swing mechanism is utilized, the lifting appliance can be rotatably arranged at the end part of the lifting arm, and the lifting hooks suspended at the two ends of the lifting appliance can be driven to rotate horizontally by the horizontal rotation of the lifting appliance so as to rotate horizontally, the posture of a heavy object can be adjusted, the lifting operation and the adjustment of an ultra-long heavy object or an irregular heavy object can be conveniently carried out, the operation is simple, and the stability is high.

Further, the invention also provides a hoisting machine, which has the advantages due to the hook component.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of a hook assembly provided by the present invention;

figure 2 is a schematic front view of the hook assembly provided by the present invention in a non-operative condition;

figure 3 is a schematic front view of the hook assembly provided by the present invention in an operative condition;

figure 4 is a schematic top view of the hook assembly provided by the present invention in a first operative condition;

figure 5 is a schematic top view of the hook assembly provided by the present invention in a second operative condition;

figure 6 is a schematic front view of the hook assembly provided by the present invention in a third operating condition;

figure 7 is a schematic front view of the hook assembly of the present invention in a fourth operating condition;

FIG. 8 is a schematic structural view of a rotary support head provided in the present invention;

fig. 9 is a schematic structural diagram of a hoisting machine provided by 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 spreader; 602: a hook; 610: a rotating support head;

611: an installation 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 oil cylinder; 670: a fourth cylinder;

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

8: a pulley; 9: and (5) a heavy object.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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.

A hook assembly 6 of the present invention is described below with reference to figures 1 to 8 and comprises: a spreader 601, a swing mechanism and a hook 602; the lifting hook 602 is suspended at two ends of the lifting appliance 601;

the spreader 601 is rotatably disposed at the end of the boom 5 through a rotation mechanism, and is used for driving the spreader 601 to horizontally rotate.

In the present embodiment, the hook assembly 6 is mounted at the end of the boom 5, specifically: the lifting appliance 601 is rotatably arranged on the lifting arm 5 through a rotating mechanism, and the lifting appliance 601 can be driven to rotate through the rotating mechanism; at least two lifting hooks 602 are respectively hung at two ends of the lifting appliance 601 through the traction of the steel wire rope 7, the high-low position of the corresponding lifting hook 602 is controlled by controlling the retraction of the steel wire rope 7, and the heavy object 9 is correspondingly lifted through the lifting hook 602.

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

According to the hook assembly 6 provided by the invention, the swing mechanism is utilized, the lifting appliance 601 can be rotatably arranged at the end part of the lifting arm 5, and the lifting hook 602 suspended at the two ends of the lifting appliance can be driven to rotate horizontally by the horizontal rotation of the lifting appliance 601, so that the weight 9 can rotate horizontally in the lifting process, the posture can be adjusted, the lifting operation and the adjustment of an ultra-long weight or an irregular weight are convenient, 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 spreader 601 is connected to the swing support head 610 through a rotation shaft, one end of the first cylinder 620 is connected to the spreader 601, the other end is connected to the swing support head 610, one end of the second cylinder 630 is connected to the spreader 601, and the other end is connected to the swing support head 610. Specifically, the rotation shaft is a rotation center of the spreader 601, passes through the center holes of the swing support head 610 and the spreader 601, and drives the spreader 601 to rotate horizontally by using the first cylinder 620 and the second cylinder 630.

Further, as shown in fig. 8, the upper portion of the swing support head 610 is provided with a mounting portion 611 for connecting 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 the 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 the driving of the first oil cylinder 620 and the second oil cylinder 630. Specifically, the mounting portion 611 of the swing support head 610 may be a through hole, and the swing support head 610 is mounted on the through hole by a fastener, the first connection portion 612 and the second connection portion 613 may be connection pieces, the first oil cylinder 620 and the second oil cylinder 630 are hinged between the corresponding connection pieces and the spreader 601, and the spreader 601 is driven to swing relative to the swing support head 610 by the telescopic motion of the first oil cylinder 620 and the second oil cylinder 630. The hook assembly 6 is in a first working state as shown in fig. 4, and is driven by the first oil cylinder 620 and the second oil cylinder 630, so that the hook assembly 6 drives the weight 9 to rotate, and is in a second working state 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 arranged along the center of the swing support head 610, and the first cylinder 620 and the second cylinder 630 provide forces with the same magnitude and opposite directions, so as to drive the spreader 601 to swing around the rotation center (i.e., the 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 is hinged to the first end of the spreader 601, one end of the second support arm 650 is hinged to the 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 are 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 are rotatable around both ends of the spreader 601, and the wire rope 7 is connected to the hook 602 after changing its direction around the fixed sheave 8. In the rest condition, the first support arm 640 and the second support arm 650 are in the retracted condition, as shown in fig. 2; in the operative condition, the first and second support arms 640, 650 are in an extended condition, 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 is expanded in the working state, the rope entering angle of the steel wire rope 7 is reduced, the rope entering and exiting deflection angle of the steel wire rope 7 is ensured, the rope is prevented from being disengaged, the rope is recovered 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 is connected between the first support arm 640 and the spreader 601, the fourth cylinder 670 is connected between the second support arm 650 and the spreader 601, and the third cylinder 660 and the fourth cylinder 670 are used for driving the first support arm 640 and the second support arm 650 to expand or retract. In this embodiment, the first support arm 640 and the second support arm 650 are driven to rotate around their respective rotation axes by the telescopic motion of the third oil cylinder 660 and the fourth oil cylinder 670, so as to realize two states of retraction and extension.

Based on the above embodiments, it should be understood that the oil cylinder may also adopt other power devices, and only the hydraulic oil cylinder is utilized to enable more precise control, which is more suitable for application scenarios.

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 joint of the spreader 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 joint of the spreader 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 the excessive rotation of the first support arm 640 and the second support arm 650. It will be appreciated that the first and second locking mechanisms may be implemented in the form of one of a locking pin, an angle limiter and an axle pin with other locking mechanisms.

In one embodiment, the hook assembly 6 further includes a first hoist 680 and a second hoist 690, the first hoist 680 and the second hoist 690 are respectively disposed inside the spreader 601, a steel wire rope 7 is disposed on the first hoist 680 and the second hoist 690, and the hook 602 is suspended at two ends of the spreader 601 through the steel 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 hook 602 is controlled by using the winding and unwinding state of the wire rope 7. In this embodiment, the hanger 601 has a hollow structure, and the first winch 680 and the second winch 690 may be disposed inside the hanger 601. As shown in fig. 6 and 7, in this embodiment, the inclination angle of the weight 9 can be adjusted by controlling the first winch 680 and the second winch 690, which is convenient for passing through a complex environment, for example, as shown in fig. 6, the first winch 680 and the second winch 690 control the extension lengths of the steel wire ropes 7 to be consistent, at this time, the weight 9 is lifted horizontally, if one of the winches is controlled to move, so that the extension lengths of the steel wire ropes 7 at the two ends are different, at this time, the weight 9 may 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 utilize the corresponding cylinder and the winch driver to switch between the non-operating state and the operating state, and adjust between the first operating state, the second operating state, the third operating state, and the fourth operating state, specifically:

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

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 a first working state, as shown in fig. 4, the spreader 601 and the hook 602 are horizontally rotated to a first position by being driven by the first cylinder 620 and the second cylinder 630;

4. in a second working state, as shown in fig. 5, the first oil cylinder 620 and the second oil cylinder 630 are used for driving, so that the lifting appliance 601 and the lifting hook 602 horizontally rotate to a second position;

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

6. in the fourth operating state, as shown in fig. 7, the first hoist 680 and the second hoist 690 are driven such that the length of the wire rope 7 at one side is longer than that at the other side, and the weight 9 is in an inclined state.

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

It should be understood that the hook assembly 6 may be mounted to other work machines according to the application to perform the lifting function.

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

Specifically, the all-ground walking chassis 1 is adopted, the front wheels can independently steer when normal roads pass, the all-wheel steering can be realized on an operation site, the turning radius is small, an independent suspension system adapts to walking transition of field complex road conditions, the four support legs 2 horizontally stretch out and draw back from the chassis 1 through the horizontal oil cylinders, and the vertical oil cylinders are used for realizing the vertical telescopic support of the chassis 1.

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

The suspension arm 5 is hinged with the rotary table 3, the fifth oil cylinder 4 is a luffing oil cylinder, the upper end of the luffing oil cylinder is hinged with the middle part of the suspension arm 5, the lower end of the luffing oil cylinder is hinged with the rotary table 3, the luffing action of the suspension arm 5 is completed through the telescopic motion of the luffing oil cylinder, and the independent arm joint is driven to extend out and retract through the action of the independent telescopic oil cylinder in the suspension arm 5.

According to the embodiment, the hoisting machinery disclosed by the invention is provided with the hook assembly 6 of the embodiment, so that the weight 9 can horizontally rotate in the hoisting process, the pose can be adjusted, the hoisting operation on the overlong weight 9 or the irregular weight 9 is convenient, the operation is simple, and the stability is high.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A hook assembly, comprising:

a spreader;

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

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

2. The hook assembly as claimed in claim 1, wherein the swing mechanism comprises a swing support head, a first cylinder and a second cylinder, the hanger is connected to the swing support head through a rotation shaft, one end of the first cylinder is connected to the hanger, the other end of the first cylinder is connected to the swing support head, one end of the second cylinder is connected to the hanger, and the other end of the second cylinder is connected to the swing support head.

3. The hook assembly as claimed in claim 2, wherein the upper portion of the swing support head is provided with a mounting portion for connection with the boom; the lower part of the rotary supporting 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 and second cylinders are arranged symmetrically about the swivel support head.

5. The assembly of claim 1, further comprising a first support arm and a second support arm, wherein one end of the first support arm is hinged to the first end of the spreader, one end of the second support arm is hinged to the second end of the spreader, and the other ends of the first support arm and the second support arm are provided with pulleys for guiding the wire rope.

6. The assembly of claim 5, further comprising a third cylinder and a fourth cylinder, the third cylinder being connected between the first support arm and the spreader, the fourth cylinder being connected between the second support arm and the spreader, the third cylinder and the fourth cylinder being configured to drive the first support arm and the second support arm to expand or retract.

7. The assembly of claim 5, further comprising a first locking mechanism and a second locking mechanism, wherein the first locking mechanism is disposed at the joint of the spreader and the first support arm for locking the rotation of the first support arm, and the second locking mechanism is disposed at the joint of the spreader and the second support arm for locking the rotation of the second support arm.

8. The hook assembly according to claim 1, further comprising a first hoist and a second hoist, wherein the first hoist and the second hoist are respectively disposed inside the lifting device, and steel wire ropes are disposed on the first hoist and the second hoist, and the lifting hook is suspended at two ends of the lifting device through the steel wire ropes.

9. A hoisting machine, comprising: a vehicle body, a boom arm, and the hook assembly of any of claims 1-8, the boom arm being hingedly connected at one end to the vehicle body, the hook assembly being mounted at the other end of the boom arm.

10. Hoisting machine as claimed in claim 9, characterized in that the vehicle body comprises:

the chassis is arranged on the vehicle body, and a plurality of support legs are arranged on the chassis;

the rotary table is arranged on the vehicle body and is hinged with the suspension arm;

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 of the suspension arm.

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