CN114031004B

CN114031004B - Lifting machine

Info

Publication number: CN114031004B
Application number: CN202111438810.1A
Authority: CN
Inventors: 彭国成; 梅景平; 何薪
Original assignee: Shanghai Yichui Machinery Technology Co ltd
Current assignee: Shanghai Yichui Machinery Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2025-01-17
Anticipated expiration: 2041-11-29
Also published as: CN114031004A

Abstract

The present application discloses a hoisting machine, comprising: a frame, a pitching mechanism and a vertical lifting mechanism. The pitching mechanism comprises a pitching boom, and the pitching boom is movably connected to the frame. The vertical lifting mechanism is connected to the pitching boom in a transmission manner, and a sling is connected to the end of the vertical lifting mechanism. The hoisting machine of the present application is provided with two power mechanisms, namely a pitching mechanism and a vertical lifting mechanism. The pitching mechanism is fixed after the amplitude is changed to the maximum height, and is switched to the vertical lifting mechanism to perform the lifting operation, thereby reducing the energy consumption of the pitching mechanism and reducing the fuel consumption/electricity consumption of the lifting operation of the lifting box by 10%-30%. At the same time, the cooperation of the pitching mechanism and the vertical lifting mechanism can cross multiple rows of multi-layer containers and perform full-elevation heavy container stacking operations. The hoisting machine has a simple structure and low cost, and can cross multiple rows of containers to carry out box removal and lifting operations on the target box, simplifying the box removal process, improving operation efficiency, and saving costs.

Description

Lifting machine

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to a hoisting machine.

Background

In the fields of ports and piers, railway goods stations and logistics container yards, a container front crane is mostly used as heavy container loading, unloading and lifting equipment. The common front lifting appliance has a multi-row sequential lifting function and limited capacity of lifting containers in a row, but can not perform lifting operation of lifting containers below one layer of containers in a row, and can only lift two layers of containers even if a high-frame lifting appliance is additionally hung, and can not perform longitudinal lifting stacking operation on more than two layers of containers with 40 feet and more than three layers of containers with 20 feet. There are also rail-crossing and vertical lifting crane requirements at railway container yards that are often not met by conventional overhead cranes.

In addition, with the successful advent of large automated container terminals and yards and the rise of labor costs, the industry is driving for low cost automated stacking and handling equipment and control systems for small and medium sized container yards. If a small yard adopts a large portal crane of a large automated dock to perform automated operation, a single automated portal crane ARMG or ARTG sells more than 1000 ten thousand of equipment, and the cost of track and foundation construction is about 1200 ten thousand only, so that a general customer cannot bear such high equipment purchasing cost.

Along with the popularization and rapidity demands of logistics container sites, small railway goods stations and inland shipping terminals of containers are increased year by year, if the construction demands of conventional inland terminals are met, a small shore bridge crane (STS) is generally required to be purchased for loading, unloading and lifting containers of ships, and meanwhile, a front crane or a RMG is also required to be purchased for carrying out container stacking operation.

Disclosure of Invention

The application aims to provide a lifting machine which can span multiple rows of containers to carry out box drawing and lifting operation on a target box, simplifies the box drawing process, can be used for a inland wharf to replace a quay crane, can be used as a preferred container yard automatic operation device, improves the operation efficiency and saves the cost.

In order to achieve the above object, the present application provides the following technical solutions.

A trolley comprising:

A frame;

the pitching mechanism comprises a pitching suspension arm which is movably connected with the frame;

The vertical lifting mechanism is in transmission connection with the pitching suspension arm, and the tail end of the vertical lifting mechanism is connected with a lifting appliance.

Optionally, the one end that every single move davit deviates from the frame is provided with steering mechanism, perpendicular hoisting mechanism includes hoist engine and wire rope, the hoist engine set up in the frame, wire rope one end connect in the hoist engine, the other end winding steering mechanism, wire rope connects the hoist.

Optionally, the two ends of the pitching suspension arm along the length direction are respectively provided with a first fixed pulley, and the steel wire rope sequentially winds around each fixed pulley to extend to the steering mechanism.

Optionally, the pitching mechanism further comprises a supporting frame and a luffing cylinder, wherein the supporting frame and the luffing cylinder are both connected to the frame, and the supporting frame and the luffing cylinder are both hinged to the pitching suspension arm.

Optionally, the support frame includes main support and bracing, main support one end with the frame articulates mutually, and the other end with every single move davit articulates mutually, bracing one end with main support articulates mutually, the other end of bracing with the frame articulates mutually.

Optionally, the pitching suspension arm comprises a basic arm, a telescopic arm and a telescopic oil cylinder;

The basic arm has flexible chamber, flexible arm's one end connect in flexible intracavity, flexible hydro-cylinder set up in flexible intracavity, just flexible hydro-cylinder's both ends are connected respectively basic arm with flexible arm.

The basic arm is respectively hinged with the support frame and the amplitude variation oil cylinder.

Optionally, the vertical hoisting device comprises a plurality of steel wire ropes, the winch comprises a plurality of winding drums, one end of each steel wire rope is connected with the corresponding winding drum, and the other end of each steel wire rope is connected with the lifting appliance through the steering mechanism.

Optionally, the lifting machine further comprises an anti-swing mechanism, the anti-swing mechanism is connected to the pitching suspension arm, the anti-swing mechanism is provided with a steel wire rope positioning device, the steel wire rope positioning device is limited on the side portion of the steel wire rope, the position of the steel wire rope is limited, and the steel wire rope is prevented from swinging.

Optionally, the anti-shaking mechanism comprises a telescopic device, the steel wire rope positioning device is connected to the telescopic device, and the telescopic device drives the steel wire rope positioning device to move up and down.

Optionally, the telescopic device comprises a telescopic connecting rod assembly and an adjusting oil cylinder;

The telescopic connecting rod assembly comprises a plurality of connecting rod groups, each connecting rod group comprises two movable connecting rods which are arranged in a crossing way, and the movable connecting rods of the two adjacent connecting rod groups are hinged;

Two ends of the adjusting oil cylinder are respectively connected with two movable connecting rods of the same connecting rod group;

And the adjusting oil cylinder stretches and contracts to drive the telescopic connecting rod assembly to stretch or shorten.

Optionally, the steel wire rope positioning device comprises a guide sleeve, and the steel wire rope penetrates through the guide sleeve;

Or the steel wire rope positioning mechanism comprises a roller group, the roller group comprises two rollers, and the steel wire rope is clamped between the two rollers.

Optionally, the frame includes a front frame and a rear frame, the front frame having a cavity, one end of the rear frame being slidably connected to the cavity to adjust the length of the trolley.

Optionally, two revolving bridges are movably connected to the frame, wheels are arranged on the revolving bridges, a telescopic device is arranged between the frame and the revolving bridges, and the telescopic device moves in a telescopic manner to drive the revolving bridges to swing so as to adjust the wheel distance of the wheels.

Optionally, a rotary motor and a rotary support seat are arranged on the rotary bridge, the rotary support seat comprises a swing bearing and a rotary support, the swing bearing is connected to the rotary bridge, the rotary support is rotatably connected to the swing bearing, the wheel is rotatably connected to the rotary support, and the rotary motor is in transmission connection with the rotary support to drive the rotary support to rotate so as to adjust the running direction of the wheel.

The technical scheme provided by the application can achieve the following beneficial effects:

The lifting machine is provided with two power mechanisms, namely a pitching mechanism and a vertical lifting mechanism. The pitching mechanism is fixed after the amplitude of the pitching mechanism reaches the maximum height, and is switched to the vertical lifting mechanism to execute lifting operation, so that the energy consumption of the pitching mechanism is reduced, and the oil consumption/electricity consumption of lifting operation of the lifting box is reduced by 10% -30%. Meanwhile, the pitching mechanism and the vertical lifting mechanism are matched to work, so that the full-height Cheng Chongxing container stacking operation can be performed across multiple rows of multi-layer containers. The lifting machine has simple structure and low cost, can span multiple rows of containers to carry out box drawing and lifting operation on the target box, simplifies the box drawing process, improves the operation efficiency and saves the cost.

Drawings

FIG. 1 is a side view of a crane according to an embodiment of the present application;

Fig. 2 is a schematic view of an anti-swing mechanism of a crane according to an embodiment of the present application in a contracted state;

fig. 3 is a schematic view of an anti-swing mechanism of a crane in an extended state according to an embodiment of the present application;

fig. 4 is a schematic view of a vertical lifting mechanism of a lifting machine according to an embodiment of the present application;

FIG. 5 is a front view of a crane according to an embodiment of the present application;

FIG. 6 is an enlarged view of portion A of FIG. 5;

fig. 7 is a top view of a crane according to an embodiment of the application.

Reference numerals:

1. The lifting device comprises a frame, 11, a front frame, 12, a rear frame, 2, a pitching mechanism, 21, a pitching suspension arm, 211, a basic arm, 212, a telescopic arm, 213, a telescopic cylinder, 214, a first fixed pulley, 22, a steering mechanism, 221, a second fixed pulley, 23, a supporting frame, 231, a main support, 232, a diagonal bracing, 24, a luffing cylinder, 3, a vertical lifting mechanism, 31, a winch, 32, a wire rope, 4, an anti-swing mechanism, 41, a wire rope positioning device, 411, a horizontal part, 412, a vertical part, 413, a guide sleeve, 42, a telescopic link assembly, 421, a connecting bar, 422, a movable link, 43, an adjusting cylinder, 5, a rotary bridge, 51, a rotary supporting seat, 52, a rotary motor, 53, a swing bearing, 6, a telescopic device, 7, wheels, 8, a movable pulley, 9 and a lifting appliance.

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly explain the embodiments of the present application by referring to the figures, which are intended to provide a further understanding of the present application and are intended to illustrate the present application, but do not constitute an undue limitation of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely an association relationship describing the associated object, and means that there may be three relationships, e.g., a and/or B, and that there may be three cases where a exists alone, while a and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

Referring to fig. 1 to 7, an embodiment of the present application provides a hoist including a frame 1, a pitching mechanism 2 and a vertical hoisting mechanism 3. The pitching mechanism 2 comprises a pitching arm 21, said pitching arm 21 being movably connected to the frame. The vertical lifting mechanism 3 is in transmission connection with the pitching suspension arm 21, and the tail end of the vertical lifting mechanism 3 is connected with a lifting appliance 9.

In the embodiment of the application, the lifting machine is provided with two power mechanisms, namely a pitching mechanism 2 and a vertical lifting mechanism 3. The pitching mechanism 2 is fixed after being changed into the maximum height, and is switched to the vertical lifting mechanism 3 to execute the vertical lifting operation, so that the energy consumption of the pitching mechanism 2 is reduced, and the oil consumption/electricity consumption of the lifting operation of the lifting box is reduced by 10% -30%. Meanwhile, the pitching mechanism 2 and the vertical lifting mechanism 3 are matched to work, so that the full-height Cheng Chongxing container stacking operation can be performed across multiple rows of multi-layer containers. The lifting machine has the advantages of simple structure and low cost, can span multiple rows of containers to carry out box drawing and lifting operation on the target box, simplifies the box drawing process, improves the operation efficiency and saves the cost.

As shown in fig. 1 to 3, a steering mechanism 22 is arranged at one end of the pitching suspension arm 21, which is far away from the frame, the vertical lifting mechanism 3 comprises a winch 31 and a steel wire rope 32, the winch 31 is arranged on the frame, one end of the steel wire rope 32 is connected with the winch 31, the other end of the steel wire rope bypasses the steering mechanism 22 and naturally sags, and the bottom end of the steel wire rope 32 is connected with the lifting appliance 9. Specifically, the bottom end of the steel wire rope 32 is connected with a movable pulley 8, and the lifting appliance is connected with the movable pulley 8. During the pitching movement of the pitching suspension arm 21, the partial structure of the vertical lifting mechanism 3 can be driven to synchronously move. The working end of the vertical hoisting mechanism 3 is positioned at the target position, so that hoisting operation is convenient to perform.

The steering mechanism 22 may include a second fixed pulley 221, and the wire rope 32 naturally sags after passing around the second fixed pulley 221, where the second fixed pulley 221 is disposed to reduce lifting resistance of the wire rope.

Referring to fig. 1, in one possible embodiment, two longitudinal ends of the pitching arm 21 are respectively provided with a first fixed pulley 214, and the wire rope 32 sequentially passes around each of the first fixed pulleys 214 and then extends to the steering mechanism 22. By the arrangement of the first fixed pulley 214, the wire rope and the pitching arm 21 are made parallel, and the steering resistance is reduced.

Referring to fig. 1, in a possible embodiment, the pitching mechanism 2 further comprises a support frame 23 and a luffing cylinder 24, wherein the support frame 23 and the luffing cylinder 24 are connected to the frame 1, and the support frame 23 and the luffing cylinder 24 are hinged to the pitching suspension arm 21. The luffing cylinder 24 drives the pitching arm 21 to perform pitching motion in a telescopic manner. The support 23 is fixed in position and can serve as a fulcrum for the pitching arm 21. The support frame 23 is provided with a first hinge seat to which the pitching arm 21 is connected. The pitching arm 21 is rotatable about said first hinge seat. The luffing cylinder 24 can drive the pitching arm 21 to rotate around the first hinging seat to adjust the pitching angle through telescopic movement. The luffing cylinder 24 is fixed after telescoping to the target position, and the position of the luffing jib 21 is locked. At the moment, the container can be lifted by controlling the vertical lifting mechanism 3 to operate. In the process, the height position of the pitching suspension arm 21 is fixed, so that the energy consumption of amplitude variation of the front suspension arm can not be generated, and the oil consumption/electricity consumption of lifting operation of the suspension box is reduced by 10% -30%.

Referring to fig. 1, in one possible embodiment, the support frame 23 includes a main bracket 231 and a diagonal brace 232, one end of the main bracket 231 is hinged to the frame 1, the other end is hinged to the pitch boom 21, one end of the diagonal brace 232 is hinged to the main bracket 231, and the other end of the diagonal brace 232 is hinged to the frame 1. The main bracket 231, the diagonal brace 232 and the frame 1 form a triangle stable structure, and can form a stable fulcrum.

Wherein, the support frame 23 may be a truss structure, that is, the main support 231 has two support arms arranged at intervals and a cross beam connected with the two support arms, the ends of the two support arms are all provided with the first hinge seat, the positions of the two support arms close to the ends are all provided with the second hinge seat, the diagonal bracing 232 may include two, the uniform ends of the two diagonal bracing 232 are connected with the second hinge seat, and the other ends of the two diagonal bracing 232 are hinged with the frame. Both support arms are hinged with the frame. The two first hinging seats can be hinged with the pitching suspension arm 21 through the rotating shaft, and the truss structure design increases the structural strength and can stably support the pitching suspension arm 21.

Referring to fig. 1, in one possible embodiment, the pitch boom 21 includes a base arm 211, a telescoping arm 212, and a telescoping ram 213. The basic arm 211 is provided with a telescopic cavity, one end of the telescopic arm 212 is connected in the telescopic cavity, the telescopic oil cylinder 213 is arranged in the telescopic cavity, and two ends of the telescopic oil cylinder 213 are respectively connected with the basic arm 211 and the telescopic arm 212. The telescopic cylinder 213 moves telescopically, and drives the telescopic arm 212 to translate along the length direction of the base arm 211, so that the telescopic arm can be extended or shortened.

Wherein, the basic arm 211 is hinged with the supporting frame 23 and the luffing cylinder 24 respectively.

In one possible embodiment, the vertical hoisting device comprises a plurality of steel wires 32, the hoist 31 comprises a plurality of winding drums, each steel wire 32 is connected at one end to a corresponding winding drum and at the other end to the spreader 9 around the steering mechanism 22. By arranging the plurality of steel wire ropes 32, the load is shared, the safety is improved, and the stability of the hoisting process is improved by the plurality of steel wire ropes 32.

Referring to fig. 1 to 3, in one possible embodiment, the crane further comprises an anti-sway mechanism 4, the anti-sway mechanism 4 being connected to the pitching arm 21, the anti-sway mechanism 4 having a wire rope positioning device 41, the wire rope positioning device 41 being located on the side of the wire rope 32, limiting the position of the wire rope 32, preventing the wire rope 32 from swaying. In the application, the lifting appliance 9 is controlled to ascend and descend by winding and unwinding the steel wire rope 32 by the winding drum, and the lifting appliance 9 is prevented from swinging by the anti-swing mechanism 4, so that the vertical traction operation of the lifting appliance 9 is realized.

Referring to fig. 1 to 3, in one possible embodiment, the anti-sway mechanism 4 comprises a telescopic device to which the wire rope positioning device 41 is connected, and the telescopic device moves the wire rope positioning device 41 up and down. In this embodiment, during the process of releasing the hoist 9 from the wire rope 32, the telescopic device can drive the wire rope positioning device 41 to synchronously descend, so that the length of the wire rope 32 in a free state is smaller, and the anti-shake effect is achieved. The telescoping devices retract simultaneously during lifting of the cargo box by the wire rope 32, without blocking the lifting of the cargo box. And remain constrained to the action of the wire rope 32.

Wherein the telescoping device includes a telescoping linkage assembly 42 and an adjustment cylinder 43. The telescopic link assembly 42 comprises a plurality of link groups, each link group comprises two movable links 422 which are arranged in a crossing manner, and the movable links 422 of two adjacent link groups are hinged. Two ends of the adjusting cylinder 43 are respectively connected with two movable connecting rods 422 of the same connecting rod group. The adjusting cylinder 43 stretches and contracts to drive the telescopic connecting rod assembly 42 to stretch or shorten.

In the above-mentioned scheme, when the adjusting cylinder 43 is extended, the two movable links 422 are driven to be opened by a large angle, and the whole telescopic link assembly 42 is shortened. When the adjusting cylinder 43 is shortened, the two movable connecting rods 422 can be driven to reduce the opening angle, and the length of the whole telescopic connecting rod assembly 42 is increased.

In one possible embodiment, the wire rope positioning means 41 may comprise a guide sleeve 413, the wire rope 32 being arranged through the guide sleeve 413. For example, the wire rope positioning device 41 is provided with a plurality of guide sleeves 413 in the longitudinal direction, and each wire rope 32 is provided to penetrate the corresponding guide sleeve 413. The wire rope positioning device 41 may include a horizontal portion 411 and a vertical portion 412, wherein the horizontal portion 411 is provided with a horizontal guide groove, the horizontal portion 411 is provided with a plurality of guide sleeves 413 along the length direction, and the vertical portion 412 is provided with a vertical guide groove. The hinge shaft of two movable links 422 of a link group of the telescopic link assembly 42, which are arranged in a crossing manner, is provided with a first guide post, and the tail ends of the two movable links 422 are respectively provided with a second guide post. The two second guide posts are inserted into the horizontal guide slots, and the first guide post is inserted into the vertical guide slot. In this way, during the telescopic movement of the telescopic link assembly 42, the wire rope positioning device 41 is kept in a stable state, no inclination phenomenon occurs, and the wire ropes 32 are ensured to be kept in a vertical state.

As shown in fig. 2 and 3, two movable links 422 of a group of links at the top end of the telescopic link assembly 42 are respectively connected with a connecting bar 421, and one end of each connecting bar 421 is hinged to the corresponding movable link 422. The other ends of the two connecting bars 421 are connected to the luffing jib 21 via a swivel shaft, for example, to a steering mechanism 22 at the end of the luffing jib 21. The steering mechanism 22 is provided with a bracket and a plurality of second fixed pulleys, and the other ends of the two connecting bars 421 are connected to the bracket through a rotating shaft. Thus, during telescoping movement of the telescoping linkage assembly 42, the two connecting bars 421 can rotate about the pivot axis.

In another possible embodiment, the wire rope positioning means 41 comprises roller sets, each comprising two rollers, between which the wire rope 32 is clamped. The wire rope positioning device 41 may include a tripod connected to the rotating shafts of two movable links of a link group, and the tripod has a bottom edge and two oblique edges connected to the bottom edge, on which a plurality of roller groups may be disposed along the length direction. Each roller set is used for clamping and limiting one steel wire rope 32.

Referring to fig. 1 and 7, in one possible embodiment, the frame includes a front frame 11 and a rear frame 12, the front frame 11 having a cavity, and one end of the rear frame 12 is slidably connected to the cavity to adjust the length of the trolley. The crane is provided with the rear frame 12 with the variable wheelbase, when the container lifting appliance 9 is in a forward unsteady state with load, the rear frame 12 can be controlled to extend backwards to change the wheelbase, and the longitudinal stable moment of the whole crane is increased, so that the equipment has larger lifting capacity.

The front frame 11 may include two main boxes disposed at two intervals, and the two main boxes are each provided with a cavity, and the rear frame 12 is correspondingly provided with two telescopic beams, where the two telescopic beams of the rear frame 12 are respectively connected in the cavities of the two main boxes.

Referring to fig. 1, 5, 6 and 7, the frame 1 is movably connected with two revolving bridges 5, wheels 7 are arranged on the revolving bridges 5, a telescopic device 6 is arranged between the frame and the revolving bridges 5, and the telescopic device 6 can drive the revolving bridges 5 to swing so as to adjust the track width of the wheels. The telescopic device 6 may be a telescopic oil cylinder, one end of the telescopic oil cylinder is connected to the frame, the other end of the telescopic oil cylinder is connected to the rotary bridge 5, and telescopic motion of the telescopic oil cylinder can drive the rotary bridge 5 to swing. For example, when the crane needs to be transported, the telescopic oil cylinder can be controlled to drive the rotary bridge 5 to swing to be stored in the front part of the frame, so that the wheel distance of front wheels is reduced, and the space is saved.

Wherein at least the front part of the frame 1 is provided with the swing bridge 5. The swing axle 5 is provided with front wheels. The swing axle 5 is provided with a swing motor 52 and a swing support seat 51, the swing support seat 51 comprises a swing bearing 53 and a swing support, the swing bearing 53 is connected to the swing axle 5, the swing support is rotatably connected to the swing bearing 53, the wheel 7 is connected to the swing support, the wheel 7 can roll relative to the swing support, the swing motor 53 is in transmission connection with the swing support, and the swing support is driven to rotate so as to adjust the running direction of the wheel. The turning motor 52 can drive the front wheels to turn in situ, and perform complex steering actions such as 90-degree swing steering. The front wheels 7 are provided with independent driving mechanisms which are in transmission connection with the front wheels and drive the front wheels to roll. The rotary motor 52 adjusts the running direction of the front wheels, and the transverse running of the crane can be realized by matching with a driving mechanism. The rotary motor 52 may include a motor and a worm, where the rotary support is provided with engagement teeth along a circumferential direction, the worm is engaged with the rotary support, and the motor drives the worm to rotate and then drives the rotary support to rotate, and finally drives the front wheel 7 to rotate, so as to adjust a running direction.

The practice proves that the crane of the application carries out longitudinal hoisting operation on 20-foot or 40-foot containers, the operation capacity can reach 4-5 layers of high boxes, the working forbidden area of the common front crane is broken through, and the field utilization rate is improved. In addition, the application can be used for loading, unloading and transporting the shipborne container of the wharf of the small barge by enlarging the lifting wire rope travel of the lifting appliance 9.

The pitching suspension arm is subjected to container carrying running operation by changing amplitude to the lowest height through the amplitude changing oil cylinder 24, the minimum running height of equipment can be 9 meters (stacking 5 layers of high boxes), the height of a common gantry crane is the maximum stacking box height of a container, the height of a lifting appliance 9 and the height of a gantry main beam, and the height is about 19 meters (5 layers of 2.9+2+2.5=19 meters), and the gravity center of the lifting machine is far lower than that of the gantry crane, so that the lifting machine can obtain larger running speed and better running stability.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A hoisting machine, characterized in that it comprises:

Frame;

A pitch mechanism, the pitch mechanism comprising a pitch arm, the pitch arm being movably connected to the frame;

A vertical lifting mechanism, wherein the vertical lifting mechanism is in transmission connection with the luffing boom, and a lifting device is connected to the end of the vertical lifting mechanism;

The end of the luffing boom away from the frame is provided with a steering mechanism, the vertical lifting mechanism comprises a hoist and a wire rope, the hoist is provided on the frame, one end of the wire rope is connected to the hoist, and the other end is wound around the steering mechanism, and the wire rope is connected to the sling;

It also includes an anti-sway mechanism, the anti-sway mechanism is connected to the pitch boom, the anti-sway mechanism has a wire rope positioning device, the wire rope positioning device is separated from the sling, the wire rope positioning device can move up and down relative to the sling, the wire rope positioning device is limited to the side of the wire rope, limits the position of the wire rope, and prevents the wire rope from shaking;

The vertical lifting mechanism includes a plurality of steel wire ropes, the hoist includes a plurality of winding drums, one end of each steel wire rope is connected to a corresponding winding drum, and the other end is connected to the sling through the steering mechanism;

The anti-sway mechanism includes a telescopic device, the wire rope positioning device is connected to the bottom end of the telescopic device, and the telescopic device drives the wire rope positioning device to move up and down;

The telescopic device comprises a telescopic link assembly and an adjusting oil cylinder. The telescopic link assembly comprises a plurality of link groups. Each link group comprises two movable links arranged crosswise. The movable links of two adjacent link groups are hinged. The two ends of the adjusting oil cylinder are respectively connected to the two movable links of the same link group. The adjusting oil cylinder telescopes to drive the telescopic link assembly to extend or shorten.

Among them, the wire rope positioning device includes a horizontal part and a vertical part, a horizontal guide groove is opened on the horizontal part, a plurality of guide sleeves are arranged along the length direction on the horizontal part, the vertical part is connected to the horizontal part, a vertical guide groove is opened on the vertical part, and a first guide column is arranged at the hinge axis of two cross-arranged movable links of the link group at the bottom end of the telescopic link assembly, and second guide columns are respectively arranged at the ends of the two movable links, and the two second guide columns are both inserted into the horizontal guide groove, and the first guide column is inserted into the vertical guide groove.

2. The hoisting machine according to claim 1 is characterized in that a first fixed pulley is respectively provided at both ends of the luffing boom along the length direction, and the steel wire rope is sequentially wound around each of the fixed pulleys and extended to the steering mechanism.

3. The hoisting machine according to claim 1 is characterized in that the pitch mechanism also includes a support frame and a boom cylinder, the support frame and the boom cylinder are both connected to the frame, and the support frame and the boom cylinder are both hinged to the pitch boom.

4. The hoisting machine according to claim 3 is characterized in that the support frame includes a main frame and an oblique brace, one end of the main frame is hinged to the frame, and the other end is hinged to the pitch boom, one end of the oblique brace is hinged to the main frame, and the other end of the oblique brace is hinged to the frame.

5. The hoisting machine according to claim 3, characterized in that the luffing boom comprises a basic arm, a telescopic arm and a telescopic cylinder;

The basic arm has a telescopic cavity, one end of the telescopic arm is connected to the telescopic cavity, the telescopic oil cylinder is arranged in the telescopic cavity, and the two ends of the telescopic oil cylinder are respectively connected to the basic arm and the telescopic arm;

The basic arm is hinged to the support frame and the amplitude-changing cylinder respectively.

6. The hoisting machine according to claim 1 is characterized in that the frame includes a front frame and a rear frame, the front frame has a cavity, and one end of the rear frame is slidably connected to the cavity to adjust the length of the hoisting machine.

7. The hoisting machine according to claim 1 is characterized in that two revolving bridges are movably connected to the frame, wheels are provided on the revolving bridges, and a telescopic device is provided between the frame and the revolving bridges. The telescopic device telescopes to drive the revolving bridges to swing so as to adjust the wheelbase of the wheels.

8. The hoisting machine according to claim 7 is characterized in that a slewing motor and a slewing support seat are provided on the slewing bridge, the slewing support seat includes a swing bearing and a slewing support, the swing bearing is connected to the slewing bridge, the slewing support is rotatably connected to the swing bearing, the wheel is connected to the slewing support, the slewing motor and the slewing support are transmission-connected to drive the slewing support to rotate so as to adjust the driving direction of the wheel.