CN205740074U - A kind of lightweight Multifunctional container gantry crane - Google Patents

Abstract

The utility model discloses a kind of lightweight Multifunctional container gantry crane, it includes door frame assembly, it is arranged on the walking dolly on four angles of door frame assembly, it is installed in the lifting mechanism on door frame assembly, suspender, it is characterized in that: described lifting mechanism includes the hoisting mechanism that hoists, towed fixed pulley dolly, towed traveling hoisting mechanism, the described hoisting mechanism that hoists is distributed in the lower end of door frame assembly, towed fixed pulley dolly arranges mutually with the girder of door frame assembly, described towed traveling hoisting mechanism is installed in the top of girder, described towed fixed pulley dolly correspondence is pulled by towed traveling hoisting mechanism.Each hoisting mechanism correspondence that hoists of the present utility model is distributed on four angles of door frame assembly, and its position distribution achieves machine gravity and moves down, and reduces superstructure load weight, it is achieved gantry container crane self structure lightweight.

Description

A lightweight multifunctional container gantry crane

technical field

The utility model relates to the field of cranes, in particular to a lightweight multifunctional container gantry crane.

Background technique

Container transportation originated in the United Kingdom in the early 19th century. So far, container transportation has developed rapidly in the United States, Germany, France and other European and American countries, and has become the best transportation method for countries all over the world to ensure international trade.

my country's railway container transportation began in the 1950s and has gone through more than 50 years of development. At present, my country's railway network has a scale of more than 90,000 kilometers, and the railway transportation capacity has been enhanced. Due to the wide coverage of the railway transportation network and the low transportation cost, it is very suitable for the development of multimodal transportation of railway containers, and its great competitive advantages can make it an important part of regional logistics and international logistics.

With the development of small and medium-sized container yards in my country's railways, the demand for rail-mounted gantry cranes continues to increase. In actual equipment selection, these multi-purpose medium and small railway freight yards have problems of being unaffordable, unmanageable, and unusable for large-scale professional rail-mounted gantry cranes, and general lifting equipment is very expensive. It is difficult to take into account the loading and unloading, stacking and handling work requirements of multi-purpose yards, so that these medium and small multi-purpose railway freight yards face many difficulties in the selection of loading and unloading equipment.

At present, my country has been able to mass-produce shoreside container cranes and tire cranes with international advanced levels in the 1990s, while the research and development capabilities of rail cranes are relatively backward, especially the lightweight multifunctional container doors suitable for container handling business in small and medium-sized railway freight yards. The research and development of type crane is still blank in China at present. Therefore, it is particularly urgent to research and develop the construction technology and equipment of lightweight, efficient and advanced lightweight multifunctional container gantry cranes.

Utility model content

The technical problem to be solved by the utility model is to provide a light-weight and multi-functional container gantry crane with simple structure, scattered arrangement and effective reduction of the weight of the crane in view of the shortcomings of the above-mentioned prior art.

The technical solution adopted by the utility model is: a lightweight multifunctional container gantry crane, which includes a door frame assembly, a walking trolley installed on the four corners of the door frame assembly, and a The hoisting mechanism, spreader, driver's cab, electrical system, and cable reel are characterized in that: the hoisting hoisting mechanism, the dragging type traveling hoisting mechanism and the dragging type fixed pulley trolley are arranged in a dispersed manner, The hoisting mechanism is located at the outrigger between the main girder and the lower beam of the gantry structure, and penetrates through the outrigger or is located on the side of the outrigger. The main girder of the gantry assembly is matched, and the tow-type fixed pulley trolley is correspondingly towed by the tow-type walking winch mechanism.

According to the above technical solution, the door frame assembly includes two door frames arranged in parallel, the door frame is composed of a main beam and legs at both ends of the main beam, and the two door frames are connected by an upper beam and a lower beam. Each mast is equipped with a set of hoisting mechanisms, and on the main girder there is a running track matched with the tow-type fixed pulley trolley. Each set of hoisting mechanisms includes two sets of hoisting hoisting mechanisms, Fixed pulley trolley, a set of drag type walking winch mechanism.

According to the above technical solution, each set of hoisting mechanisms also includes a pulley block, a two-way lifting drum, and a wire rope set wound on the two-way lifting drum and the pulley block, and the wire rope set is connected between the spreader and the fixed pulley. The spatial positions between the trolleys form four inverted triangles, and the lower vertices of the four inverted triangles are symmetrically distributed at the four corners of the spreader.

According to the above technical scheme, each group of dragging type fixed pulley trolleys is composed of a first dragging type fixed pulley trolley and a second dragging type fixed pulley trolley, both of which have the same structure, and each dragging type fixed pulley trolley includes small The frame has a traveling wheel set on the trolley frame, and a set of fixed pulleys is symmetrically arranged at both ends of the traveling wheel set. Each set of fixed pulleys is composed of two fixed pulleys arranged side by side. The fixed pulleys of the two trolleys are misaligned. Arrangement, two tow-type fixed pulley trolleys are connected by connecting rods.

According to the above technical solution, the pulley block includes 4 fixed pulleys arranged on each dragging type fixed pulley trolley, 4 sets of movable pulleys arranged on the spreader, and the steel wire rope set includes a left steel wire rope and a right steel wire rope. Each set of movable pulleys includes two movable pulleys, and each set of movable pulleys corresponds to 4 fixed pulleys on a drag-type fixed pulley trolley. One end of the left steel wire rope is fixed on a two-way lifting drum, and the other end corresponds to After being configured with the fixed pulley on the first dragging type fixed pulley trolley and the two movable pulleys on the spreader, it is wound and fixed on the two-way hoisting drum, and one end of the right wire rope is fixed on the other two-way hoisting drum. On the tube, the other end is correspondingly arranged with the 4 fixed pulleys on the second drag type fixed pulley trolley and the 2 movable pulleys on the spreader, and then wound and fixed on the two-way lifting drum.

According to the above technical solution, the four corners of the left steel wire ropes are respectively guided by the first guide pulley set on the first guide pulley set and the second guide pulley set distributed around each gantry, and the first guide pulley set includes Two concentric guide pulleys on the left side of the mast and two eccentric redirection damping pulleys on the right side of the mast, the four corners of the steel wire rope on the right side are respectively guided by the second guide pulley group; the second The guide pulley block includes two eccentric redirection damping pulleys arranged on the left side of the mast and two concentric guide pulleys arranged on the right side of the mast.

According to the above technical solution, the hanger includes an upper hanger, a slewing mechanism and a lower hanger, the upper hanger is connected with the lower hanger through a slewing mechanism, and the slewing mechanism is used to realize the 360-degree rotation of the lower hanger. There are 4 connecting seats on the top, which are used to connect with the movable pulley. There are guide plates on the bottom ends of both sides of the lower hanger respectively, which are used to realize the rapid positioning when the container is hoisted. There are rotating lock mechanisms symmetrically on both sides of the lower hanger. .

According to the above technical solution, the rotary lock mechanism includes an electric push rod, an eccentric wheel, a connecting rod mechanism, a guide wheel assembly, and a twist lock assembly. One end of the electric push rod is connected with the eccentric wheel, and the eccentric wheel is connected with the connecting rod mechanism. , the link mechanism is connected with the twist lock assembly, and the guide wheel assembly provides guidance for the link mechanism.

According to the above technical solution, the linkage mechanism includes a swing rod, a horizontal rod, and a pull rod connected in sequence, the swing rod is connected with the eccentric wheel, the horizontal rod is configured with the guide wheel assembly, and the pull rod is connected with the twist lock assembly.

According to the above technical solution, the metal material of the crane is made of high-strength weather-resistant steel.

The beneficial effects obtained by the utility model are as follows: 1. Each hoisting hoisting mechanism of the utility model is correspondingly distributed on the four corners of the mast assembly, and its position distribution realizes the downward movement of the center of gravity of the whole machine, reducing the upper 2. The lifting mechanism of the utility model forms a plurality of inverted triangles along the direction of the main girder and the direction perpendicular to the main girder, and through the multi-directional triangular arrangement, combined with damping pulleys, it realizes 3. The 4 sets of hoisting winches of the utility model can act alone, or two or three or four combined actions, and are used for loading and unloading other goods, realizing one machine with multiple functions; 4. 1. The spreader in the utility model adopts the electric push rod to drive the rotary lock mechanism, which has few structural elements, compact structure, convenient installation and debugging, safe and reliable performance, and easy guarantee of the transmission accuracy of the mechanism; and in the case of small and medium-sized freight yards, the workload is not large. The spreader can be replaced at any time according to the need to realize the loading and unloading operations of different boxes, which simplifies the system, is light in weight, and is easy to maintain. It can effectively reduce the load of the main beam and the running power of the whole machine, and reduce the cost of the spreader at the same time.

Description of drawings

Fig. 1 is the front view of the utility model.

Fig. 2 is a side view of the utility model.

Fig. 3 is the front view of the door frame assembly in the utility model.

Fig. 4 is a side view of the mast assembly in the utility model.

Fig. 5 is a schematic cross-sectional view of the main beam in the utility model.

Fig. 6 is a partial structural schematic diagram of the main girder in the present invention.

7-8 are schematic layout diagrams of the lifting mechanism in the present invention.

Fig. 9 is the front view of the drag-type fixed pulley trolley in the utility model.

Fig. 10 is a top view of the tow-type fixed pulley trolley in the utility model.

Fig. 11 is a schematic diagram of the winding of a group of wire ropes of the hoisting mechanism in the utility model.

Fig. 12 is a schematic diagram of the wire rope winding of the two-way lifting drum in the utility model.

Fig. 13 is a schematic diagram of the wire rope winding of the traveling reel in the dragging type traveling hoist.

Fig. 14 is a schematic diagram of the left wire rope winding and the right wire rope winding.

Fig. 15 is a schematic diagram of an inverted triangle formed by the winding of the left steel wire rope and the right steel wire rope along the direction of the main girder.

Fig. 16 is a schematic diagram of an inverted triangle formed by the left wire rope winding in the direction perpendicular to the main girder.

Fig. 17 is the main sectional view of the damping pulley in the utility model.

Fig. 18 is a structural schematic diagram of the damping pulley in the utility model.

Fig. 19-Fig. 20 are schematic diagrams of moment analysis of the damping pulley in the utility model.

Figure 21 is the front view of the hanger in the utility model.

Fig. 22 is a top view of the sling in the utility model.

Fig. 23 is the front view of the upper hanger in the utility model.

Figure 24 is a top view of the upper hanger in the utility model.

Fig. 25-Fig. 28 are structural schematic diagrams of the relay lock mechanism of the present utility model.

Fig. 29 is the front view of the walking trolley in the utility model.

Fig. 30 is a schematic diagram of the arrangement of jacks at both ends of the trolley frame in the present invention.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figures 1 and 2, this embodiment provides a light-weight multifunctional container gantry crane, which includes a gantry assembly 1, a walking trolley 4 installed on the four corners of the gantry assembly 1, an The hoisting mechanism 2, spreader 3, driver's cab 5, stairway railing 6, electrical system 7, cable reel 62, and windproof anchor 63 arranged on the mast assembly.

As shown in Figure 3-6, the door frame assembly includes two door frames arranged in parallel, the door frame is composed of a main beam 8 and legs 9 at both ends of the main beam 8, and the two door frames pass through the upper beam 10. The lower beam 12 is connected, and a small beam 11 can be set between the upper beam and the lower beam. The main structural form of the main beam 8 adopts a box-shaped beam section, with partitions and longitudinal ribs, and ear beams are set on both sides of the lower part as a trolley Walk the track. The ear beam structure is composed of wear plates 13 , ear beam cover plates 14 , ear beam webs 15 , and ear beam partitions 16 . The ear beam is set with a downward slope of 1:5, which is convenient for the automatic centering of the wheels when the tow-type fixed pulley trolley is running, and the wear plate is convenient for quick replacement. The legs 9 are variable cross-section structures. Both the small beam 11 and the lower beam 12 are of box beam structure. The upper beam 10, the small beam 11 and the outriggers 12 on each side form a "well" structure, which is convenient for quick overall assembly on site. Among them, the metal material of the mast assembly is made of high-strength weather-resistant steel. Through the optimization of the structure, compared with the traditional crane of the same type and function, the weight is only 1/2, which effectively reduces the weight of the crane and realizes the complete machine lightweight.

As shown in Figure 7-8, a set of hoisting mechanisms is correspondingly provided on each mast, and there are two sets of hoisting mechanisms on the mast assembly. Every group of hoisting mechanisms includes two sets of hoisting hoisting mechanisms 17, one group of dragging type fixed pulley trolley 18, and a set of dragging type walking hoisting mechanisms 19. Each hoisting hoisting mechanism 17 is correspondingly distributed on any part of each outrigger 9, penetrates the outrigger or is located on the side of the outrigger. The structure of the gantry crane itself is lightweight. The dragging type fixed pulley dolly 18 is hung on the lower ear beam of the main beam 8 of the door frame, and the dragging type walking winch mechanism 19 is installed on the top of the main beam 8 . In the utility model, the force bearing of the mast assembly is improved through the distributed arrangement of the hoisting mechanism.

In this embodiment, the lifting mechanism has an anti-sway function, and each group of lifting mechanisms also includes a pulley block, a two-way lifting drum, and a steel wire rope set wound on the two-way lifting drum and the pulley block, and the steel wire rope set A plurality of inverted triangles are formed at the spatial position between the spreader and the fixed pulley trolley, and the lower vertices of the inverted triangles are symmetrically distributed on the spreader. The utility model utilizes the geometric principle to form a flexible connection mode with certain rigidity through the winding angle of the steel wire rope group and different fixed positions, thereby adding geometric interference damping to the hanger with the nature of the single pendulum, and eliminating the inertial swing amplitude, thereby eliminating the swing of the spreader and realizing anti-sway along the direction of the main girder and the direction perpendicular to the main girder.

Wherein, the hoisting hoisting mechanism 17 adopts the same direction and two-way hoisting reel, one side of which is left-handed and the other side is right-handed (as shown in Figure 12), the direction of rotation of the rope groove is symmetrical, and the steel wire ropes are respectively fixed on the two ends of the reel body or In the middle, it is driven by a variable frequency deceleration motor with a brake and an encoder. 2 pieces are respectively established on the left and right sides of the lower beam, 4 pieces in total. The four sets of hoisting hoisting mechanisms 17 of the utility model can realize the hoisting action independently, and also can be linked, and the operation is flexible.

As shown in Figures 9-10, each group of dragging type fixed pulley trolleys 18 is composed of a first dragging type fixed pulley trolley and a second dragging type fixed pulley trolley. Beam on the walking track of the ear beam. Each dragging type fixed pulley trolley comprises trolley frame 26, is provided with traveling wheel set 29 and 1 group of fixed pulleys 27 symmetrically on both sides of trolley frame 26, and each group of fixed pulleys is made up of two fixed pulleys arranged side by side, The fixed pulleys of two groups of trolleys are misplaced and arranged to avoid wire rope interference. Both ends of the trolley frame 26 are provided with rope-supporting pulleys 25. The running wheel set 29 is a tapered structure. Two drag-type fixed pulley trolleys are connected by connecting rod 28 to form a group, and the fixed pulleys of the two trolleys are arranged in a dislocation manner. In order to ensure that the trolley runs smoothly, a buffer device 23 (shown in FIG. 7 ) is provided at the extreme position of the trolley frame running track. A tensioning device 22 is also arranged on the trolley frame, and its tensioning device 22 adopts a spiral mechanical locking structure and is designed for adjusting the length of the wire rope. Wherein, the trolley frame 26 is a main structural part and a bearing part, and has sufficient strength, rigidity, fatigue strength and stability. For ease of installation, the trolley frame 26 is designed in sections, and the joints are connected by high-strength flange bolts.

As shown in Figures 7 and 11, the pulley block includes 4 fixed pulleys 27 arranged on each dragging type fixed pulley trolley, 4 sets of movable pulleys 22 arranged on the spreader, and distributed around each door frame. The first guide pulley group and the second guide pulley group, each group of movable pulleys includes 2 movable pulleys, each group of movable pulleys is configured with 4 fixed pulleys on each dragging type fixed pulley trolley, and the steel wire rope group includes left steel wire ropes 30 and The right steel wire rope 31, the four corners of the left steel wire rope are respectively guided by the first guide pulley group, and the first guide pulley group includes two concentric guide pulleys arranged on the left side of the door frame and two concentric guide pulleys arranged on the right side of the door frame. Two eccentric redirection damping pulleys, the four corners of the steel wire rope on the right side are respectively guided by the second guide pulley set; the second guide pulley set includes two eccentric redirection damping pulleys and an Two concentric guide pulleys arranged on the right side of the mast; wherein, the hoisting movement of the left steel wire rope 30 and the right steel wire rope 31 can act independently or together, and the hoisting is selected according to the form, specification and weight of the hoisted goods.

As shown in Figures 11 and 14, the winding mode of the left steel wire rope 30 is:

One end of the left steel wire rope 30 is fixed on the two-way hoisting drum of the left hoisting mechanism, and the other end is correspondingly wound to the No. 20 concentric guide pulley, No. 4 fixed pulley, No. 10 movable pulley, and No. 3 fixed pulley. Take No. 19 eccentric redirection damping pulley, No. 18 eccentric redirection damping pulley, No. 6 fixed pulley, No. 11 movable pulley, No. 5 fixed pulley, No. 17 concentric guide pulley, and finally return to the left hoisting hoist Wrapped and fixed on the two-way lifting reel.

The winding method of the wire rope on the right side is:

One end of the wire rope 31 on the right side is fixed on the two-way hoisting drum of the winch mechanism on the right side, and the other end corresponds to the No. 23 concentric guide pulley on the first dragging type fixed pulley trolley, and the No. 1 fixed pulley is used, and the No. 9 fixed pulley is used. Moving pulley, No. 2 fixed pulley, No. 24 eccentric redirection damping pulley, No. 21 eccentric redirection damping pulley, No. 7 fixed pulley, No. 12 movable pulley, No. 8 fixed pulley, No. 22 second guide pulley , and finally return to the two-way hoisting drum of the hoist on the right side to wind and fix it.

Finally, as shown in Figure 15, along the direction of the main beam, the left steel wire rope 30 and the right steel wire rope 31 form two large inverted triangles at the spatial position between the spreader and the fixed pulley trolley, realizing the anti-corrosion protection along the main beam direction. shake. Perpendicular to the direction of the main girder, the fixed pulley and the movable pulley wound by the steel wire rope on the left form a small triangle through an unequal arrangement, and the fixed pulley and the movable pulley wound by the right steel wire rope also form a small triangle through an unequal arrangement, thus Realize anti-rolling in the direction perpendicular to the main girder. Combined along the direction of the main girder and the direction perpendicular to the main girder, the multi-directional triangular arrangement and the damping pulley are used to achieve the purpose of anti-sway in all directions.

To sum up, the 4 sets of hoisting winches of the utility model can be operated individually, or in combination of two or three or four, and can be used for loading and unloading other goods, so as to realize one machine with multiple functions.

As shown in Figures 7 and 11, the drag-type traveling hoist mechanism includes a traveling hoist 19, a third guide pulley block 20 distributed at the four corners of each mast, and the third guide pulley block 20 includes 4 concentric guide pulleys. The wire rope winding method is as follows: the drag type wire rope 24 is fixed on the traveling hoist, winds from the traveling hoist to the No. 13 concentric guide pulley, passes through the No. 14 concentric guide pulley, passes through the tensioning device on the trolley frame, and passes through the No. 15 concentric guide pulley The pulleys go on No. 16 concentric guide pulleys, and finally return to the traveling hoist. The drum rope grooves are in the same direction of rotation, and the two ends or the middle are equipped with locking wire rope devices.

In this embodiment, the eccentric redirection damping pulley is an eccentric structure with the bottom diameter circle of the wire rope and the center pin shaft circle 32 of the pulley (as shown in Figures 19 and 20). When the damping pulley is balanced, the radius of gyration L1=L2, Turning torque, L1*F=L2*F; when the damping pulley rotates, the turning radius L1 at one rope entry becomes larger, and the turning radius L2 at the other rope entry becomes smaller, L1*F>L2*F, naturally Form the torque that prevents it from rotating, and keep the torque balance at the two rope entry places. The pin shaft of the guide wheel adopts a material with a large friction coefficient to increase the friction resistance and restrain the rotation of the pulley.

As shown in Figures 21-24, the hanger in this embodiment includes an upper hanger 64, a rotary mechanism, and a lower hanger 33. The upper hanger 64 is connected with the lower hanger 33 through a rotary mechanism, and the rotary mechanism is used to realize The lower hanger is 360-degree rotatable, and the upper hanger 64 is provided with four connecting seats 34, which are used to realize quick connection by the bearing pin and the movable pulley. Guide plates 35 are arranged on the two right-angle sides of the lower hanger 33 for realizing quick positioning when the container is hoisted. At both ends of the end beam 37 of the lower hanger 33, a turn lock mechanism 36 is installed.

In this embodiment, the rotary mechanism includes a rotary motor 65 installed on the upper hanger 64, a worm gear mechanism 66 connected to the output shaft of the rotary motor 65, and a rotary shaft 67 configured with the worm gear mechanism. The upper connecting seat of 67 links to each other with the upper hanger 64, and the lower connecting seat on the rotary shaft links to each other with the lower hanger 33, to realize the 360-degree rotation of the lower hanger, and realize the loading and unloading requirements of the "door-to-door" of the railway container.

As shown in Figures 25-28, the twist lock mechanism includes an electric push rod 38, an eccentric wheel 39, a linkage mechanism 40, a guide wheel assembly 41, and a twist lock assembly 42. One end of the electric push rod 38 is connected to the eccentric wheel 39 is connected, the eccentric wheel 39 is connected with the link mechanism 40, and the link mechanism 40 is connected with the twist lock assembly 42, and the guide wheel assembly 41 provides the guiding function for the link mechanism 40. According to reasonable stroke calculation, the electric push rod 38 drives the eccentric wheel 39 to rotate 90°, and then the connecting rod mechanism 40 can drive the rotary pin of the rotary lock assembly to rotate 90°, so that the rotary lock mechanism can be opened and closed. The electric push rod 38 is an electric actuator. Its working principle is that the rotation of the motor is changed into a linear motion through the worm or gear, and the connecting rod mechanism can complete the reciprocating action by pushing and pulling back and forth. It has the advantages of small size, convenient installation, and environmental protection. It has the advantages of no pollution, stable operation, large load, high precision and synchronous automatic control. The electric push rod adopts a minimum thrust of 300kg.f. As shown in Figure 27, the link mechanism 40 includes a swing rod 43, a horizontal rod 44, and a pull rod 45 connected in sequence, the swing rod 43 is connected to the eccentric wheel 39, and the horizontal rod 44 is configured with the guide wheel assembly 41. The pull rod 15 is connected with the twist lock assembly 42 . Wherein, the horizontal bar 44 can do linear motion along the guide wheel assembly 41; Wherein, as shown in Figure 28, the twist lock assembly is made up of revolving pin 46, seat ring 47, sliding sleeve 48, slide plate 49, convex ball block 50, concave ball block 51, guide sleeve 52. The seat ring 47 is composed of a male and a female seat ring, which is convenient for assembly and disassembly. This mechanism drives the seat ring 47 to rotate by the link mechanism 40, thereby drives the rotating pin 46 to rotate. Oil grooves are set in the slide plate 49, the convex ball block 50, and the concave ball block 51, which is convenient for lubrication. The guide sleeve 52 can protect the revolving pin 46 from mechanical damage when the container is hoisted.

When it is necessary to lift the container, control the whereabouts of the spreader, use the guide plates 35 on both sides of the spreader to realize the precise positioning of the revolving pin, adjust the spreader so that the four turnlock hooks are aligned with the four oblong holes of the container, and then lower the spreader. The limit sensors of the four corners of the container transmit signals to the control room. After the position is in place, the electric push rod is activated, and the revolving pin is driven to rotate 90 degrees through the linkage mechanism, and the revolving lock head is fastened to the lock hole; the container and the spreader are locked as a whole, In the locked state, it can be lifted.

The spreader in the present invention adopts the electric push rod to drive the rotary lock mechanism, which has few structural elements, compact structure, convenient installation and debugging, safe and reliable performance, and easy to ensure the transmission accuracy of the mechanism. Through the rotary mechanism, the container can be rotated freely by 360 degrees, which is effective. The work efficiency is improved, and the "door-to-door" loading and unloading requirements of railway containers are realized. And in the case of small and medium-sized freight yards, the spreader can be replaced at any time according to the needs to realize the loading and unloading operations of different boxes, which simplifies the system, is light in weight, easy to maintain, and can effectively reduce the load of the main girder and the running power of the whole machine. Reduce the cost of the spreader.

In this embodiment, the wheels of the traveling trolley are load-bearing traveling parts of the whole machine. Frequent work over the years may easily cause wheel rim wear and bearing damage. Therefore, the utility model focuses on the structure that can quickly replace the wheels of the traveling trolley. As shown in Figures 29-30, the traveling trolley includes a balance beam 55, the upper end of the balance beam 55 is connected to the lower crossbeam of the door frame assembly through a hinge seat 54, and the lower end is connected to the trolley frame 56. The frame 56 is equipped with a geared motor 53 with a brake and an encoder, and a traveling wheel set 57. A jack seat matched with a jack 59 is provided on the front end of the balance beam 55. Both sides of the trolley frame 56 are provided with There is a jack seat 61 matched with the jack 58. The three jack seats are equipped with three jacks correspondingly, forming a triangular structure. When the traveling wheel set needs to be replaced, the jack is in place and starts to lift to make the traveling wheel leave the rail surface. Use tools to separate the bearing from the trolley frame, and then carry out the traveling wheel assembly. Group replacement.

Claims (10)

1. a lightweight Multifunctional container gantry crane, it includes door frame assembly, is arranged on four angles of door frame assembly On walking dolly, the lifting mechanism being installed on door frame assembly, suspender, drivers' cab, electrical system, cable drum, its feature Be: described in hoist hoisting mechanism and towed traveling hoisting mechanism and towed fixed pulley dolly dispersed placement, described in hoist Hoisting mechanism is at the supporting leg between the girder and sill of portal-framed structure, and described towed traveling hoisting mechanism is positioned at girder On, described towed fixed pulley dolly arranges mutually with the girder of door frame assembly, and described towed fixed pulley dolly is corresponding by pulling Formula traveling hoisting mechanism pulls.

A kind of lightweight Multifunctional container gantry crane the most according to claim 1, it is characterised in that: described door frame Assembly includes two door frames be arrangeding in parallel, and described door frame is made up of girder and the supporting leg at girder two ends, and two door frames pass through Entablature, sill connect, and be correspondingly arranged on one group of lifting mechanism, be provided with and surely slide with towed on girder on each door frame The wheel walking rails that arranges mutually of dolly, often group lifting mechanism include two sets hoist hoisting mechanism, one group of towed fixed pulley dolly, A set of towed traveling hoisting mechanism.

A kind of lightweight Multifunctional container gantry crane the most according to claim 2, it is characterised in that: described often group Lifting mechanism also includes assembly pulley, two-way hoisting drum and is wound in the steel wire rope on described two-way hoisting drum, assembly pulley Group, described steel wire rope group locus between described suspender and fixed pulley dolly forms multiple del, described fall three The lower summit of dihedral is symmetrically distributed on described suspender.

A kind of lightweight Multifunctional container gantry crane the most according to claim 3, it is characterised in that: described often group Towed fixed pulley dolly is made up of the first towed fixed pulley dolly and the second towed fixed pulley dolly, both structure phases With, every towed fixed pulley dolly includes trolley frame, is provided with traveling wheels on trolley frame, symmetrical at the two ends of traveling wheels Being provided with 1 group of fixed pulley, often group fixed pulley is made up of two fixed pulleys being arranged side by side, and the fixed pulley dislocation of two dollies is arranged, It is connected by connecting rod between two towed fixed pulley dollies.

A kind of lightweight Multifunctional container gantry crane the most according to claim 4, it is characterised in that: described pulley Group is included on every towed fixed pulley dolly 4 fixed pulleys arranged, the 4 groups of movable pulleys arranged on suspender, described steel Cord group includes left side steel wire rope and right side steel wire rope, and often group movable pulley includes two movable pulleys, and often group movable pulley and one drag Dragging 4 fixed pulleys on formula fixed pulley dolly corresponding, one end of described left side steel wire rope is fixed on a two-way hoisting drum, After fixed pulley in other end correspondence and the first towed fixed pulley dolly and 2 movable pulley phase configuration on suspender, it is wound around also Being fixed on this two-way hoisting drum, one end of right side steel wire rope is fixed on another two-way hoisting drum, the other end corresponding with After 4 fixed pulleys on second towed fixed pulley dolly and 2 movable pulley phase configuration on suspender, it is wound around and is fixed on this pair On hoisting drum.

A kind of lightweight Multifunctional container gantry crane the most according to claim 5, it is characterised in that: at each door Surrounding on frame is distributed the first leading block group and the second leading block group, and four angles of described left side steel wire rope are respectively by the One leading block group guides, and described first leading block group includes two the concentric leading blocks being installed on the left of door frame and installs On the right side of door frame two eccentric changed course damper pulley, four angles of described right side steel wire rope are respectively by the second leading block group Guide；Described second leading block group includes being installed in the eccentric changed course damper pulley of two on the left of door frame and is installed in door frame right Two concentric leading blocks of side.

A kind of lightweight Multifunctional container gantry crane the most according to claim 1 and 2, it is characterised in that: described Suspender includes over sling, slew gear and lower suspension bracket, and described over sling is connected with lower suspension bracket by slew gear, described turn-around machine Structure is used for realizing the revolution of 360 degree of lower suspension bracket, is provided with 4 and connects seat, for being connected with movable pulley, at lower suspension bracket on over sling Bottom, both sides is respectively arranged with guide plate, and quick location during for realizing container hanging, the lateral symmetry at lower suspension bracket sets There is rotating lock mechanism.

A kind of lightweight Multifunctional container gantry crane the most according to claim 7, it is characterised in that: rotating lock mechanism Including electric pushrod, eccentric, linkage, guide wheel assembly, rotation lock assembly, a termination of described electric pushrod and eccentric phase Even, eccentric is connected with linkage, and described linkage is connected with rotation lock assembly, and described guide wheel assembly provides for linkage Guide effect.

A kind of lightweight Multifunctional container gantry crane the most according to claim 8, it is characterised in that: described connecting rod Fork that mechanism includes being sequentially connected, horizon bar, pull bar, described fork is connected with eccentric, and horizon bar matches with guide wheel assembly Putting, pull bar is connected with rotation lock assembly.

A kind of lightweight Multifunctional container gantry crane the most according to claim 1 and 2, it is characterised in that: described The metal material of crane uses high-strength weathering steel to make.