WO2012055255A1

WO2012055255A1 - Hoisting mechanism for container crane and container crane

Info

Publication number: WO2012055255A1
Application number: PCT/CN2011/076127
Authority: WO
Inventors: 张寒; 杨启舟
Original assignee: 湖南三一智能控制设备有限公司; 三一集团有限公司
Priority date: 2010-10-28
Filing date: 2011-06-22
Publication date: 2012-05-03
Also published as: CN201942459U

Abstract

Disclosed are a hoisting mechanism for a container crane and a container crane. The hoisting mechanism includes a hoisting trolley frame and a spreader upper frame (1). Two sets of traveling pulley blocks (41, 42) and two sets of wire-rope-fastening devices (31, 32) are mounted on the spreader upper frame (1). The wire-rope-fastening device (31, 32) can slide along a direction parallel with the traveling direction of a trolley. Four sets of guiding pulley blocks (61, 62, 63, 64) and two dual-drums (51, 52) are mounted on the hoisting trolley frame. Each set of wire-rope, one end of which is fixedly connected to one dual-drum, wraps around one traveling pulley of the traveling pulley block corresponding in position with the dual-drum and one set of guiding pulleys in turn, and then is fixedly connected with one set of wire-rope-fastening device. The present invention realizes functions of shake-preventing, revolving, balancing and titled-pivoting of the spreader with relatively simple structure, convenient maintenance and usage, high safety and reliability, and distinct comprehensive performance.

Description

Container crane hoisting mechanism and container crane This application claims to be submitted to the China Patent Office on October 28, 2010, the application number is 201020580300.9, and the utility model name is "a container crane hoisting mechanism and container crane" Chinese patent application Priority is hereby incorporated by reference in its entirety. Technical field

The utility model relates to the technical field of machinery, in particular to a container crane lifting mechanism and a container crane. Background technique

Container gantry cranes are the main loading and unloading equipment for container terminals. Today, with the rapid development of container transportation industry, how to improve the efficiency of operations is an important issue for all terminals and ports to study.

Due to the diverse ground conditions of the working environment such as ports, docks, container yards, etc., there are unsatisfactory conditions such as settlement and bulging on the ground. This results in containers not being stacked on the ideal level, but with a certain degree of skew. . In addition, the deviation of the container ship and the container transport truck during the berthing or parking causes the length direction of the container not to be absolutely perpendicular to the running direction of the hoisting trolley. At the same time, the goods in the container are affected by unforeseen factors during loading and unloading, such as the shaking of the container ship during the sailing process, which may cause the container to be eccentric. Due to the existence of these objective conditions, the container gantry cranes are difficult to hoist and carry the boxes, which makes the boxes inaccurate and hoisting the eccentric load, which affects the loading and unloading efficiency of the container cranes and has potential safety hazards.

Under normal circumstances, under the conditions of the site setting of the dock and the external dimensions of the equipment, the operating efficiency is generally related to the driver's operational proficiency, the characteristics of the crane cart, the structural parameters of the trolley, and the braking characteristics. The effects of operational inertia and wind loads on these influencing factors are unpredictable, as each container being lifted is not the same, causing the container to oscillate back and forth in the vertical plane and to create a twist in the horizontal plane. Turn shocks. This sway and shock will directly affect the container alignment time and the comfort and safety of the operation during loading and unloading.

The existing device for mitigating and preventing swaying and oscillating is provided with a dedicated torque motor or hydraulic mechanism, and the driven reels are respectively disposed on both sides of the sling trolley direction, and the structure diagram thereof is as shown in FIG. 1 , but the system is more The complex and anti-shake effect is not ideal, and there is no anti-shake effect in the direction of the cart. In addition, there is also an anti-shake mechanism which is entangled with the hoisting wire rope. The structure of the anti-swaying mechanism is as shown in FIG. 2, and the anti-swaying mechanism has anti-shake effect in the direction of the spreader cart and the trolley, but the winding is complicated. The organization is huge.

Another crane two-way anti-shake system is also disclosed in the prior art. As shown in Figures 3a and 3b, the single reel and the double reel have the same principle. They consist of 1-8 sets of wire ropes and pulleys and reels. Each set of wire ropes is fixed at one end and the other end is wound at a certain angle through the pulley. The reel is fixed, and each group forms a plane triangle, which forms four inverted plane triangles. The two movement directions of the spreader have motion damping formed by two plane triangles to slow the swing of the tool. The direction of the cart has two triangles consisting of wire ropes 7 and 8, 3 and 4; the car has two triangles consisting of wire ropes 1 and 2, 5 and 6 for anti-shake. Such a mechanism is complicated, the number of wire ropes is large, the length is difficult to adjust, and the length of the wire rope is different during the use, and the length of the eight ropes is often adjusted.

It can be seen that when the prior art solves the above problems of skew, eccentric load, etc., the method of lifting of the spreader, tilting of the spreader, balance of the spreader, and the like are usually adopted. In order to realize the swinging, tilting and balancing functions of the spreader, two sets of electric push rods or hydraulic cylinder mechanisms are usually adopted, but the mechanism is complicated and the cost is high. Utility model content

In view of the defects in the prior art, the embodiment of the present invention provides a container crane hoisting mechanism with a simple structure and convenient maintenance, which has the two-way anti-rolling effect of the running direction of the cart and the running direction of the trolley, and realizes the swing of the spreader at the same time. , balance and tilt functions.

In order to solve the above technical problem, the embodiment of the present invention provides a container crane hoisting mechanism, including a lifting small frame, which has an upper frame, and the upper frame is installed with two sets. a movable pulley block and two sets of wire rope fixing devices; the wire rope fixing device can slide parallel to the running direction of the trolley; the lifting small frame is equipped with four sets of guiding pulley blocks and two double reels; the container crane lifting mechanism The utility model further comprises four sets of wire rope sets, one end of each set of wire rope sets is fixedly connected to a double roll, and is sequentially wound around a movable pulley, a set of guide pulleys and a set of the movable pulley set corresponding to the position of the double roll. The set of wire rope fixing devices is fixedly connected; wherein, the two sets of wire ropes share a double reel and a set of wire rope fixing devices, and the movable pulley and the guiding pulley group wound by each set of wire ropes are different.

Preferably, the two sets of moving pulley blocks are symmetrically arranged in the middle of the upper frame, the axes thereof are collinear and parallel to the running direction of the trolley; the two sets of wire rope fixing devices are symmetrically arranged on both sides of the spreader parallel to the running direction of the trolley; The four sets of guiding pulley blocks are symmetrically arranged at four corners of the lifting trolley frame; the two double-connecting reels correspond to the positions of the two sets of moving pulley blocks, and the axes thereof are parallel to each other and perpendicular to the traveling direction of the trolley.

Preferably, each set of guiding pulley sets comprises: a horizontal pulley, the axis is perpendicular to the plane of the lifting small frame; the first vertical pulley, the axis is parallel to the running direction of the cart; the second vertical pulley, the axis is parallel to the running direction of the lifting trolley; The eight vertical pulley axes of the four sets of guide pulleys are coplanar, and the plane of the plane is parallel to the plane of the lifting frame and the plane of the spreader.

Preferably, one end of the wire rope set is fixed on the double reel, and the other end is taken out from the inner side of the two double reels, firstly bypassing a moving pulley in the movable pulley block, and then sequentially bypassing the first vertical pulley in the guiding pulley block, The horizontal pulley and the second vertical pulley are then fixedly connected to the wire rope fixing device.

Preferably, the wire rope fixing device comprises: a wire rope joint block and a telescopic push rod. Preferably, the wire rope joint block and the spreader upper frame are coupled to each other by a roller and a slide rail; one end of the telescopic push rod is connected to the wire rope joint block, and the other end is fixedly connected to the tool upper frame.

Preferably, the telescopic push rod is an electric push rod or a hydraulic push rod.

The utility model also provides a container crane comprising the above-mentioned container crane hoisting mechanism.

Compared with the prior art, the container crane lifting mechanism provided by the utility model is With the above structure, when the spreader is lifted, the internal shape of each inverted triangle formed by the wire rope group between the lifting frame and the spreader upper frame is changed, but the four triangles remain congruent due to the four inverted triangles. In the running direction of the cart and the running direction of the trolley, the steady state is maintained, and the wire rope generates a reverse pulling force on the running direction of the cart and the running direction of the trolley, that is, the swing damping, thereby eliminating the inertia swing in the running direction of the cart and the trolley. When the spreader moves and suddenly brakes or decelerates, the spreader sway, but whether it is the running direction of the cart or the running direction of the cart, there are motion damping of four space triangles, thereby slowing the swing of the spreader. Both the cart and the cart are in a stable state in both directions, and the anti-rolling effect is good; each wire rope is evenly stressed, which reduces the wear on the wire rope and prolongs the life. The electric push rod and the wire rope fixing device are installed at a midpoint of the wide side of the upper frame of the tool, and the swinging and balancing functions of the spreader are realized by the combination of the two sets of electric push rods; the two rolls are symmetrically installed In the middle of the lifting frame, the axis of the reel is perpendicular to the running direction of the lifting frame, by controlling one of the reels in the reel group to rotate, the other reel remains stationary or the two reels are opposite Rotating, so that the spreader can realize the function of tilting in the running direction of the crane frame. The utility model realizes various functions such as anti-rolling, turning, balancing and tilting, and the structure is still relatively simple, convenient to maintain and use, high in safety and reliability, and comprehensive in performance. DRAWINGS

1 is a schematic view showing the structure of a device for mitigating and preventing swaying and oscillating in the prior art;

2 is a schematic structural view of another device for mitigating and preventing swaying and oscillating in the prior art;

3a is a schematic structural view of a two-way anti-shake system of a single reel crane in the prior art;

Figure 3b is a schematic structural view of a two-way anti-rolling system of a double reel crane in the prior art;

4 is a schematic structural view of a container crane hoisting mechanism according to an embodiment of the present invention; FIG. 5 is a schematic structural view of a wire rope joint block provided by an embodiment of the present invention; FIG. 6 is a schematic structural view of a container crane hoisting mechanism provided by an embodiment of the present invention. detailed description

The container crane hoisting mechanism provided by the embodiment of the present invention will be described in detail below with reference to FIG. 4, FIG. 5 and FIG.

As shown in FIG. 4 and FIG. 6 , the container crane hoisting mechanism provided by the embodiment of the present invention may include: a spreader upper frame 1 and a lifting small frame (not shown), wherein: the spreader is placed on the shelf 1 Two electric push rods (electric push rod 21 and electric push rod 22), two wire rope joint blocks (wire rope joint block 31 and wire rope joint block 32), two sets of movable pulley blocks (moving pulley group 41 and moving pulley group 42);

The lifting trolley frame is provided with two reels (reel 51 and reel 52), four sets of guiding pulley groups (guide pulley group 61, guiding pulley group 62, guiding pulley group 63 and guiding pulley group 64);

4 sets of steel wire ropes (wire rope set 71, wire rope set 72, wire rope set 73, wire rope set 74) are respectively wound between the corresponding reel and the pulley block, and the two ends of each set of wire rope are fixedly connected to the reel and the wire rope joint block.

As shown in Fig. 5, the electric push 4 dry 21-end is fixedly connected to the upper frame 1, and the other end is connected to the wire rope joint block 31. The wire rope joint block 31 realizes the relative movement between the wire rope joint block and the spreader upper frame 1 by means of a slide rail 9 coupled with the track roller 8 by means of a slide rail fixed to the spreader upper frame 1. The structure of the electric push rod 22 and the wire rope block 32, and the connection relationship with the spreader upper frame 1 are similar.

The movable pulley block 41 and the movable pulley block 42 are symmetrically arranged on the upper middle portion of the upper frame 1, and the axes thereof are collinear and parallel to the traveling direction of the trolley. Wherein, the movable pulley group 41 includes a movable pulley 411 and the movable pulley 412, the movable pulley block 42 includes a movable pulley 421 and a movable pulley 422, and the movable pulley block is coupled to the reel and the guide pulley block through the wire rope set.

The reel 51 and the reel 52 are symmetrically arranged in the middle of the lifting frame, the axes of which are parallel to each other and perpendicular to the running direction of the trolley; wherein the two reels correspond to the positions of the two sets of moving pulleys, specifically, the reel 51 is located directly above the movable pulley block 41, and the spool 52 is located directly above the movable pulley block 42. The reels 51, 52 are double reels, that is, two sets of steel cords are wound around each reel, and the ropes are taken out from the same side. The wire rope set is coupled to the guide pulley block and the upper frame 1 .

4 sets of guide pulleys, 3 in each group, are symmetrically mounted at the four corners of the lifting frame. Each set of guiding pulleys includes: a horizontal pulley whose axis is perpendicular to the plane of the lifting small frame; one vertical pulley whose axis is parallel to the running direction of the cart; and the other vertical pulley whose axis is parallel to the lifting trolley Running direction. The axes of the eight vertical pulleys are coplanar, and the plane of the plane and the plane of the lifting frame are parallel to each other.

4 sets of steel wire ropes, one end of each set of wire ropes is fixed on the corresponding wire rope reel, and the other end is connected around the movable pulley block and the guide pulley block in turn and connected with the corresponding wire rope joint block. The wire rope winding method realizes the four-rope 3 magnification form by the movable pulley block provided on the upper frame 1, and the winding method is relatively simple. Specifically, the winding method of the wire rope set is: the wire rope set 71 is fixed on the roll 51, and the other end is taken out from the inner side of the two rolls, firstly bypassing the movable pulley 411 on the upper frame of the spreader, and then bypassing the guide in turn. a vertical pulley 613, a horizontal pulley 612, and a vertical pulley 611 in the pulley block 61, and then connected downwardly to the joint a on the wire rope joint block 31;

The wire rope set 72 is fixed on the reel 51 at the other end, and the other end is taken out from the inner side of the two reels. First, the movable pulley 412 on the upper frame of the spreader is bypassed, and then the vertical pulley 623 and the horizontal pulley in the guide pulley block 62 are sequentially bypassed. 622, a vertical pulley 621, and then connected downwardly to the joint b on the wire rope joint block 32;

The wire rope set 73-end is fixed on the reel 52, and the other end is taken out from the inner side of the two reels. First, the movable pulley 421 on the upper frame of the spreader is bypassed, and then the vertical pulley 633 and the horizontal pulley in the guide pulley block 63 are sequentially bypassed. 632, a vertical pulley 631, and then connected downwardly to the joint c on the wire rope joint block 32; One end of the wire rope set 74 is fixed on the reel 52, and the other end is taken out from the inner side of the two reels. First, the movable pulley 422 on the upper frame of the spreader is bypassed, and then the vertical pulley 643 and the horizontal pulley 642 in the guide pulley block 64 are sequentially bypassed. The vertical pulley 641 is then connected downwardly to the joint d on the wire rope joint block 31.

Another embodiment of the present invention also provides a container crane having the above-described container crane hoisting mechanism.

The container crane hoisting mechanism provided by the embodiment of the present invention is described below, and the working principle and the realization process of the anti-rolling function, the tilting function, the turning function and the balancing function are explained.

1, the realization of the anti-roll function

The four sets of wire rope sets are formed by the above winding manner, so that two sets of congruent inverted triangles are formed in the spatial position between the lifting small frame and the spreader upper frame, and the lower vertices of the four inverted triangles are symmetrically distributed The four-point midpoint position of the upper frame; the angle between the planes of the four inverted triangles and the moving direction of the cart and the moving direction of the trolley are both right angles. The four inverted triangles are isosceles triangles. When the spreader and the spreader are lifted up and down, the internal shape of each inverted triangle changes, but the four triangles remain the same, because the four inverted triangles remain stable in the running direction of the cart and the running direction of the trolley, the wire rope pair The sway of the running direction of the cart and the running direction of the trolley generates a reverse pulling force, that is, sway damping, thereby eliminating the inertia sway in the running direction of the cart and the running direction of the trolley. When the load moves and suddenly brakes or decelerates, the spreader sways, but there are four spatial triangular motion dampings, both in the direction of the cart and in the direction of the car, thus slowing the swing of the spreader.

2, the realization of the tilt function

Under normal conditions, the plane on which the spreader rack 1 is placed is kept horizontal. When the spreader is required, the rack 1 is in the running direction of the trolley, and when the movable pulley 412 is tilted downward, it can be realized in the following three ways:

Method 1: The reel 52 remains stationary, the reel 51 rotates to release the wire rope set 71 and the wire rope set 72 wound thereon, and the two sets of the wire ropes between the hoisting small frame and the upper frame are lengthened, thereby making the spreader The upper frame 1 is moved toward the movable pulley 412 - the side is tilted downward. Mode 2: The reel 51 remains stationary, the reel 52 rotates around the replayed wire rope set 73 and the wire rope set 74, and the two sets of wire ropes between the lifting small frame and the upper frame 1 become shorter, thereby making the spreader The upper frame 1 is moved toward the movable pulley 412 - the side is inclined downward.

Method 3: The reel 51 rotates to release the wire rope set 71 and the wire rope set 72 wound thereon, and the two sets of the wire ropes between the lifting small frame and the spreader upper frame 1 become long, and the reel 52 rotates around and reproduces The wire rope set 73 and the wire rope set 74, the two sets of the wire ropes between the lifting frame and the spreader upper frame are shortened, so that the spreader upper frame 1 is slanted downward toward the movable pulley 412.

The same principle, in exchange for the movement properties of the two reels, there are three ways to achieve the hanger on the shelf 1 in the trolley running direction, the movable pulley 421 - side down.

3, the realization of small angle rotation function

Since the electric push rod and the spreader upper frame 1 are fixedly connected, the wire rope joint block and the spreader upper frame 1 are coupled with the slide rail 9 by the roller 8, so that relative movement between the spreader upper frame 1 and the wire rope joint block can be generated. . Therefore, from the lifting d, the top of the spreader 1 is viewed from above, and the rotation of the spreader 1 is different according to the rotation axis, and it is divided into two types: clockwise and counterclockwise. The following six types of turning can be realized. The implementation of hour hand rotation, mode 4-6 is the implementation of counterclockwise rotation:

Method 1: The electric push rod 21 contracts its push rod, and the electric push rod 22 extends its push rod. The spreader upper frame 1 rotates clockwise with the vertical line where its geometric center is located.

Mode 2: The electric push rod 21 maintains the intermediate state, and the electric push rod 22 extends its push rod, and the spreader upper frame 1 is the mid-perpendicular line of the isosceles triangle determined by the vertical pulley 621, the vertical pulley 631 and the wire rope joint block 32. (The lower cylinder is called the axis a) is the rotation axis and rotates clockwise.

Mode 3: The electric push rod 22 maintains the intermediate state, and the electric push rod 21 contracts its push rod, and the spreader upper frame 1 is the vertical line of the isosceles triangle determined by the vertical pulley 611, the vertical pulley 641, and the wire rope joint pulley 1 ( The lower cylinder, called the axis b), is the axis of rotation and rotates clockwise.

Mode 4: The electric push rod 22 contracts its push rod while the electric push rod 21 extends its push rod. The spreader 1 is rotated counterclockwise with the vertical line of its geometric center as the axis of rotation.

Mode 5: The electric push rod 21 maintains the intermediate state, while the electric push rod 22 contracts its push rod, and the spreader upper frame 1 rotates counterclockwise with the axis b as the rotation axis.

Mode 6: The electric push rod 22 maintains the intermediate state, and the electric push rod 21 extends its push rod, and the spreader upper frame 1 rotates counterclockwise with the axis a as the rotation axis.

4, the realization of the spreader balance function

The balance function of the spreader is to push the wire rope joint block by the electric push rod, change the relative position of the spreader upper frame 1 and the wire rope joint block, to adjust the position of the center of gravity of the upper frame 1 and the lower container thereof, so as to connect the two wire rope joints at the midpoint of the pulley. Realized in the vertical plane where the center of gravity of the container is located, the vertical plane is perpendicular to the running direction of the trolley. The specific implementation process is as follows:

If the center of gravity of the container deviates from the side of the movable pulley 412 of the upper shelf 1, at this time, the two electric push rods extend the push rod at the same time, and the specific extended length is deviated from the two steel wire rope joints according to the vertical plane of the center of gravity of the container. The distance of the point is determined by the distance. In this way, the connection between the midpoints of the two wire rope joint blocks is returned to the vertical plane where the center of gravity of the container is located, thereby achieving balance of the spreader;

If the center of gravity of the container deviates from the side of the movable pulley 421 of the upper frame 1, the two electric push rods simultaneously retract the push rod, and the specific retracted length is deviated from the midpoint of the two wire rope joints according to the vertical plane of the center of gravity of the container. The distance of the connection is determined. In this way, the connection between the midpoints of the two wire rope joints is returned to the vertical plane where the center of gravity of the container is located, thereby achieving balance of the spreader.

In the above embodiment, the electric push rod can also be replaced by a hydraulic push rod; the wire rope joint block can also be replaced by other wire rope fixing devices capable of generating relative motion with the upper frame.

In the above embodiment, the electric push rod and the wire rope joint block constitute a wire rope fixing device, and the device can be replaced by other structures capable of connecting and fixing the wire rope and capable of moving relative to the frame.

Considering the container crane hoisting mechanism provided by the embodiment of the present invention Process error during the implementation of the embodiment of the present invention, the four inverted triangles formed by the wire rope group between the lifting frame and the spreader shelf may not meet the strict two or two congruence or four The angle between the planes of the inverted triangles and the direction of movement of the cart and the direction of movement of the cart may not be right angles, but according to the above structure, the functions of the spreader can be reduced, rotated, tilted and balanced, and the process error is caused. The structural change of the container crane hoisting mechanism described in the embodiment of the present invention is still within the protection scope of the present invention.

Compared with the prior art, the container crane hoisting mechanism provided by the embodiment of the present invention realizes three times the wire rope multiplying ratio by setting two sets of moving pulley blocks on the upper frame of the tool, and the wire rope winding method is opposite to the single cylinder, the hoisting mechanism The output torque of the reducer is small; secondly, the hoisting mechanism forms a set of two sets of congruent inverted triangles in a spatial position between the lifting frame and the upper frame by the winding manner of the wire rope, the four The lower vertex of the inverted triangle is symmetrically distributed at the midpoint of the four sides of the upper frame, and the angle between the respective planes and the moving direction of the cart and the moving direction of the trolley is a right angle, which realizes the running direction of the cart and the two-way anti-rolling of the running direction of the trolley. The effect is achieved by controlling the electric push rod to realize the balance function of the spreader and various forms of rotation; in addition, the spreader function of the spreader can be realized by single motor rotation or relative reverse rotation of the double motor. The hoisting mechanism realizes various functions such as anti-rolling, turning, balancing and tilting of the spreader, and the structure is still relatively simple, convenient to maintain, safe and reliable, and comprehensive performance is outstanding.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present invention. Retouching should also be considered as the scope of protection of the present invention.

Claims

Rights request

1. A container crane hoisting mechanism, comprising a lifting frame and a spreader, wherein

The rack is mounted with two sets of movable pulley blocks and two sets of wire rope fixing devices; the wire rope fixing device can slide parallel to the running direction of the trolley;

The lifting trolley frame is equipped with four sets of guiding pulley blocks and two double reels; the container crane hoisting mechanism further comprises four sets of steel wire ropes, one end of each set of steel wire ropes is fixedly connected to a double reel, and a moving pulley and a set of guiding pulleys respectively wound in the movable pulley group corresponding to the position of the double reel are fixedly connected with a set of wire rope fixing devices; wherein, the two sets of steel wire ropes share a double reel and a set of wire rope fixing devices The moving pulley and the guiding pulley group wound by each set of wire ropes are different.

2. The container crane hoisting mechanism according to claim 1, wherein the two sets of moving pulley blocks are symmetrically arranged in the middle of the upper frame, the axes thereof are collinear and parallel to the running direction of the trolley; and the two sets of wire ropes are fixed. The device is symmetrically arranged on two sides with the upper frame parallel to the running direction of the trolley; the four sets of guiding pulley blocks are symmetrically arranged at four corners of the lifting small frame; the two double-connected reels correspond to the positions of the two sets of moving pulley blocks, The axes are parallel to each other and perpendicular to the direction of travel of the cart.

3. The container crane hoisting mechanism according to claim 1, wherein each set of guiding pulley blocks comprises: a horizontal pulley, the axis is perpendicular to the plane of the lifting small frame; the first vertical pulley, the axis is parallel to the running direction of the cart The second vertical pulley has an axis parallel to the running direction of the lifting trolley; wherein the eight vertical pulley axes of the four sets of guiding pulley blocks are coplanar, and the plane of the plane is parallel to the plane of the lifting small frame and the upper plane of the spreader.

4. The container crane hoisting mechanism according to claim 3, wherein one end of the wire rope set is fixed on the double reel, and the other end is taken out from the inner side of the two double reels, firstly bypassing the movable pulley block. A moving pulley is then sequentially passed around the first vertical pulley, the horizontal pulley and the second vertical pulley in the guiding pulley block, and then fixedly connected with the wire rope fixing device.

5. A container crane hoisting mechanism according to any one of claims 1 to 4, The wire rope fixing device comprises: a wire rope joint block and a telescopic push rod.

The container crane hoisting mechanism according to claim 5, wherein the wire rope joint block and the spreader upper frame are coupled to each other by a roller and a slide rail; one end of the telescopic push rod and the wire rope joint The trolley is connected, and the other end is fixedly connected to the upper shelf.

7. The container crane hoisting mechanism according to claim 5, wherein the telescopic push rod is an electric push rod or a hydraulic push rod.

A container crane, comprising the container crane hoisting mechanism according to any one of claims 1 to 7.