阅读说明：本技术 起重机小车及起重机 (Crane trolley and crane ) 是由 吴国锐 韦仕持 郝栋伟 于 2019-11-28 设计创作，主要内容包括：本发明提供了一种起重机小车及起重机,涉及起重机技术领域。该起重机小车包括小车架、第一滑轮组、第二滑轮组和安装于小车架上的驱动组件。第一滑轮组活动连接于小车架,驱动组件连接于第一滑轮组并用于驱动第一滑轮组选择性地靠近或者远离第二滑轮组。和/或,第二滑轮组活动连接于小车架,驱动组件连接于第二滑轮组并用于驱动第二滑轮组选择性地靠近或者远离第一滑轮组。本发明还提供了一种起重机,其采用了上述的起重机小车。本发明提供的起重机小车及起重机能高效率,低能耗完成抓放箱作业。(The invention provides a crane trolley and a crane, and relates to the technical field of cranes. The crane trolley comprises a trolley frame, a first pulley block, a second pulley block and a driving assembly arranged on the trolley frame. The first pulley block is movably connected to the trolley frame, and the driving assembly is connected to the first pulley block and used for driving the first pulley block to selectively approach or depart from the second pulley block. And/or the second pulley block is movably connected to the trolley frame, and the driving component is connected to the second pulley block and is used for driving the second pulley block to selectively approach or depart from the first pulley block. The invention also provides a crane, which adopts the crane trolley. The crane trolley and the crane provided by the invention can complete box grabbing and releasing operations with high efficiency and low energy consumption.)

1. A crane trolley is characterized by comprising a trolley frame, a first pulley block, a second pulley block and a driving component arranged on the trolley frame;

the first pulley block is movably connected to the trolley frame, and the driving assembly is connected to the first pulley block and is used for driving the first pulley block to selectively approach or depart from the second pulley block;

and/or the second pulley block is movably connected to the trolley frame, and the driving assembly is connected to the second pulley block and is used for driving the second pulley block to selectively approach or move away from the first pulley block.

2. The crane trolley of claim 1 wherein said first pulley block and said second pulley block are both movably connected to said trolley frame, said drive assembly comprising a first drive device and a second drive device, said first drive device and said second drive device both being mounted to said trolley frame;

the first driving device is connected to the first pulley block and is used for driving the first pulley block to selectively approach or depart from the second pulley block;

the second driving device is connected to the second pulley block and is used for driving the second pulley block to selectively approach or depart from the first pulley block.

3. The crane trolley according to claim 2, wherein the first drive means and the second drive means are located between the first pulley block and the second pulley block.

4. The crane trolley as claimed in claim 2, wherein the trolley frame comprises two bearing frames, the two bearing frames are provided with mounting sides on the sides close to each other, the mounting sides are provided with slideways, two ends of the first pulley block are respectively connected with the slideways in a sliding manner, and two ends of the second pulley block are respectively connected with the slideways in a sliding manner.

5. The crane trolley as claimed in claim 4, wherein the slideway comprises an upper and a lower rail beam, the upper and lower rail beams being spaced apart from each other on the mounting side, and wherein the end of the first pulley block is slidably disposed between the upper and lower rail beams and the end of the second pulley block is slidably disposed between the upper and lower rail beams.

6. The crane trolley as claimed in claim 5, wherein an anti-wear block is provided between the upper rail beam and the first pulley block;

and/or an anti-abrasion block is arranged between the lower rail bearing beam and the first pulley block;

and/or an anti-abrasion block is arranged between the upper rail bearing beam and the second pulley block;

and/or an anti-abrasion block is arranged between the lower rail bearing beam and the second pulley block.

7. The crane trolley as claimed in claim 2, wherein the first pulley block comprises a first pulley frame, a first pulley and a first pulley shaft, two ends of the first pulley frame are movably connected to the trolley frame, the first pulley shaft is connected to the first pulley frame, the first pulley is rotatably connected to the first pulley shaft, and the first driving device is connected to the first pulley frame;

the second pulley block comprises a second pulley frame, a second pulley and a second pulley shaft, two ends of the second pulley frame are slidably connected to the trolley frame, the second pulley shaft is connected to the second pulley frame, the second pulley is rotatably connected to the second pulley shaft, and the second driving device is connected to the second pulley frame.

8. The crane trolley as claimed in claim 7, wherein the first sheave frame has a rectangular configuration at both ends thereof and the second sheave frame has a rectangular configuration at both ends thereof.

9. The crane trolley of claim 7 wherein the first and second sheave carriages are parallel to each other.

10. A crane comprising a crane trolley according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of cranes, in particular to a crane trolley and a crane.

Background

The vigorous demand of container transportation and the throughput of container ports in the world are continuously increased, the requirements for container loading and unloading technical equipment and technology are more updated, and the development and design of efficient container loading and unloading design and system technology are urgently needed to meet the requirements of container transportation on scale, high speed and automation on wharf loading and unloading productivity.

At present, when a container is in a universal port on a shore bridge, the container is lifted to the upper part of a container truck or the container truck is lifted to a ship by a single lifting trolley, and the problem that the efficiency is low because a crane (the shore bridge or the yard bridge) is deviated from the position of the container and a lifting appliance cannot well grab the container is frequently encountered at present.

To the above-mentioned problem, among the solutions that exist among the prior art, the angle that the hoist that possesses the hoist function of verting verts is generally about 5, and the scope that can cover is less relatively, only can accomplish the case of grabbing at the position that hoist and container relative position are close. And adopt the cart to inching the complete machine and can make hoist short distance translation carry out to the case operation, because the cart needs to inching the operation many times, frequently inching the cart has increased the loading and unloading operation time to the motor loss and the oil consumption of hoist cart mechanism have been increased. And the whole equipment can be in a shaking state during operation, so that the service life of a metal mechanism of the crane is shortened, and the comfort of an equipment operator is also reduced. In addition, the lifting appliance upper frame with the transverse triggering function is adopted, so that the load is increased for the whole machine design, the operation environment of the upper frame is severe, the box is greatly impacted when being grabbed and placed, and fault points can be added for the crane.

Disclosure of Invention

The object of the invention consists, for example, in providing a crane trolley which enables the handling of boxes with high efficiency and low energy consumption.

The object of the invention is also to provide a crane which enables the handling of the boxes with high efficiency and low energy consumption.

Embodiments of the invention may be implemented as follows:

the embodiment of the invention provides a crane trolley which comprises a trolley frame, a first pulley block, a second pulley block and a driving assembly arranged on the trolley frame.

The first pulley block is movably connected to the trolley frame, and the driving assembly is connected to the first pulley block and used for driving the first pulley block to selectively approach or depart from the second pulley block.

And/or the second pulley block is movably connected to the trolley frame, and the driving assembly is connected to the second pulley block and is used for driving the second pulley block to selectively approach or move away from the first pulley block.

Optionally, the first pulley block and the second pulley block are both movably connected to the trolley frame, the driving assembly includes a first driving device and a second driving device, and the first driving device and the second driving device are both mounted on the trolley frame.

The first driving device is connected to the first pulley block and is used for driving the first pulley block to selectively approach or depart from the second pulley block.

The second driving device is connected to the second pulley block and is used for driving the second pulley block to selectively approach or depart from the first pulley block.

Optionally, the first drive and the second drive are located between the first pulley block and the second pulley block.

Optionally, the trolley frame comprises two bearing frames, one side of each of the two bearing frames, which is close to each other, is provided with a mounting side surface, the mounting side surface is provided with a slideway, two ends of the first pulley block are respectively connected with the two slideways in a sliding manner, and two ends of the second pulley block are respectively connected with the two slideways in a sliding manner.

Optionally, the slideway comprises an upper rail bearing beam and a lower rail bearing beam, the upper rail bearing beam and the lower rail bearing beam are arranged on the installation side at intervals, the end of the first pulley block is slidably arranged between the upper rail bearing beam and the lower rail bearing beam, and the end of the second pulley block is slidably arranged between the upper rail bearing beam and the lower rail bearing beam.

Optionally, an anti-abrasion block is arranged between the upper rail supporting beam and the first pulley block.

And/or an anti-abrasion block is arranged between the lower rail bearing beam and the first pulley block.

And/or an anti-abrasion block is arranged between the upper rail bearing beam and the second pulley block.

And/or an anti-abrasion block is arranged between the lower rail bearing beam and the second pulley block.

Optionally, the first pulley block includes a first pulley frame, a first pulley and a first pulley shaft, two ends of the first pulley frame are movably connected to the trolley frame, the first pulley shaft is connected to the first pulley frame, the first pulley is rotatably connected to the first pulley shaft, and the first driving device is connected to the first pulley frame.

The second pulley block comprises a second pulley frame, a second pulley and a second pulley shaft, two ends of the second pulley frame are slidably connected to the trolley frame, the second pulley shaft is connected to the second pulley frame, the second pulley is rotatably connected to the second pulley shaft, and the second driving device is connected to the second pulley frame.

Optionally, both ends of the first pulley frame are rectangular, and both ends of the second pulley frame are rectangular.

Optionally, the first and second sheave carriages are parallel to each other.

A crane includes a crane trolley. The crane trolley comprises a trolley frame, a first pulley block, a second pulley block and a driving assembly arranged on the trolley frame.

The first pulley block is movably connected to the trolley frame, and the driving assembly is connected to the first pulley block and used for driving the first pulley block to selectively approach or depart from the second pulley block.

And/or the second pulley block is movably connected to the trolley frame, and the driving assembly is connected to the second pulley block and is used for driving the second pulley block to selectively approach or move away from the first pulley block.

The beneficial effects of the crane trolley provided by the invention relative to the prior art comprise, for example:

the crane trolley provided by the invention can increase or decrease the width between the first pulley block and the second pulley block according to the actual requirement by arranging the first pulley block and the second pulley block independently and enabling the first pulley block to selectively approach or move away from the second pulley block or enabling the second pulley block to selectively approach or move away from the first pulley block, and can also realize the purpose of moving the first pulley block or the second pulley block, so that the positions of the first pulley block and/or the second pulley block can be conveniently controlled according to the actual placement condition of the container, the container can be conveniently grabbed, and the purposes of grabbing and placing the container with high efficiency and low energy consumption can be further realized.

Furthermore, the crane trolley can enable the first pulley block and the second pulley block to be independent mutually and connected with the trolley frame in a sliding mode, so that the first pulley block and the second pulley block can move independently relative to the trolley frame, the purpose of adjusting the distance between the first pulley block and the second pulley block can be achieved, the purpose of adjusting the overall positions of the first pulley block and the second pulley block is achieved, the positions of the first pulley block and the second pulley block can be adjusted according to the actual conditions of the container, the container can be conveniently grabbed, and therefore the purposes of high efficiency and low energy consumption of box grabbing and placing operation can be achieved.

The invention also provides a crane, the crane adopts the crane trolley, and the beneficial effects of the crane relative to the prior art are the same as the beneficial effects of the crane trolley relative to the prior art, and are not repeated herein.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a crane trolley provided in an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of a crane trolley provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first view angle of a first pulley block according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second view angle of the first pulley block according to the embodiment of the present invention.

Icon: 10-a crane trolley; 100-trolley frame; 110-a carrier; 111-upper rail-bearing beam; 112-lower rail-bearing beam; 113-a slide; 114-an anti-abrasion block; 200-a first pulley block; 210-a first sheave bracket; 220-a first pulley; 230-a first pulley shaft; 300-a second pulley block; 310-a second sheave rack; 320-a second pulley; 330-second pulley shaft; 400-a drive assembly; 410-a first drive; 420-second driving means.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

The embodiment provides a crane, which is used for grabbing a specified container and can grab the container to a specified position. And the crane can complete the box grabbing and releasing operation with high efficiency and low energy consumption. The crane comprises a lifting appliance, a crane trolley 10 and an operating mechanism, wherein the lifting appliance is connected to the crane trolley 10 and used for grabbing containers, the operating mechanism is connected with the crane trolley 10, the operating mechanism is used for controlling the crane trolley 10 to move and facilitating the lifting appliance to grab the containers, and the crane trolley 10 can achieve high-efficiency and low-energy-consumption box grabbing and releasing operation.

Referring to fig. 1, the crane trolley 10 includes a trolley frame 100, a first pulley block 200, a second pulley block 300, and a driving assembly 400 mounted on the trolley frame 100. The first pulley block 200 is movably connected to the trolley frame 100, and the driving assembly 400 is connected to the first pulley block 200 and is used for driving the first pulley block 200 to selectively approach or move away from the second pulley block 300. And/or, the second pulley block 300 is movably connected to the trolley frame 100, and the driving assembly 400 is connected to the second pulley block 300 and is used for driving the second pulley block 300 to selectively get close to or get away from the first pulley block 200. In addition, a spreader is connected to the first pulley block 200 and the second pulley block 300.

It should be noted that, among other things, the manner in which the first pulley block 200 and the second pulley block 300 are mounted on the trolley frame 100 may be as follows: the first pulley block 200 is fixedly installed on the trolley frame 100, the second pulley block 300 is movably connected to the trolley frame 100, and at this time, the driving assembly 400 is connected to the second pulley block 300, so that the driving assembly 400 can drive the second pulley block 300 to move relative to the trolley frame 100 and selectively approach or depart from the first pulley block 200. Alternatively, the first pulley block 200 is movably connected to the trolley frame 100, the second pulley block 300 is fixedly connected to the trolley frame 100, and at this time, the driving assembly 400 is connected to the first pulley block 200, so that the driving assembly 400 can drive the first pulley block 200 to move relative to the trolley frame 100 and selectively approach or depart from the second pulley block 300. Alternatively, the first pulley block 200 and the second pulley block 300 are both movably connected to the trolley frame 100, and at this time, the driving assembly 400 is simultaneously connected to the first pulley block 200 and the second pulley block 300, and the driving assembly 400 can drive the first pulley block 200 and the second pulley block 300 to move relative to the trolley frame 100 and selectively approach each other or move away from each other.

The first pulley block 200 and the second pulley block 300 can be arranged independently, the first pulley block 200 can selectively move close to or away from the second pulley block 300, or the second pulley block 300 can selectively move close to or away from the first pulley block 200, and then the width between the first pulley block 200 and the second pulley block 300 can be increased or reduced according to actual requirements. And the purpose of moving the first pulley block 200 and/or the second pulley block 300 can be realized, so that the position of the first pulley block 200 and/or the second pulley block 300 can be controlled according to the actual placement condition of the container, the container can be conveniently grabbed, and the purpose of grabbing and releasing the container with high efficiency and low energy consumption can be realized. Wherein moving the first pulley block 200 and/or the second pulley block 300 refers to moving only the first pulley block 200, or only the second pulley block 300, or both the first pulley block 200 and the second pulley block 300. Likewise, controlling the position of the first pulley block 200 and/or the second pulley block 300 refers to adjusting the position of the first pulley block 200 only, or adjusting the position of the second pulley block 300 only, or adjusting the positions of the first pulley block 200 and the second pulley block 300 simultaneously.

Further, in the present embodiment, the connection manner of the first pulley block 200 and the second pulley block 300 with the trolley frame 100 is exemplified in the following manner, the first pulley block 200 and the second pulley block 300 are movably connected to the trolley frame 100, the driving assembly 400 includes a first driving device 410 and a second driving device 420, and the first driving device 410 and the second driving device 420 are both mounted on the trolley frame 100. The first driving device 410 is connected to the first pulley block 200 and is used for driving the first pulley block 200 to selectively approach or depart from the second pulley block 300. The second driving means 420 is connected to the second pulley block 300 and is used to drive the second pulley block 300 selectively closer to or farther from the first pulley block 200.

That is, the first pulley block 200 and the second pulley block 300 can be driven separately by providing separate driving structures, so that the first driving device 410 and/or the second driving device 420 can be selectively activated according to actual conditions to selectively control the first pulley block 200 and/or the second pulley block 300 to move relative to the trolley frame 100, thereby realizing the adjustment of the position of the first pulley block 200 and/or the second pulley block 300 to facilitate the grabbing of the container. The first pulley block 200 and the second pulley block 300 can move towards the same direction, so that the grabbing position can be adjusted, and the container can be grabbed conveniently; of course, the distance between the first pulley block 200 and the second pulley block 300 can be adjusted, so that the swinging of the lifting appliance is reduced, and the safety of lifting and taking the container is improved.

Optionally, in this embodiment, the first driving device 410 and the second driving device 420 are located between the first pulley block 200 and the second pulley block 300. By disposing the first driving means 410 and the second driving means 420 between the first pulley block 200 and the second pulley block 300, the entire construction of the hoist trolley 10 can be made compact, and the installation stability of the first driving means 410 and the second driving means 420 can be ensured. It should be understood that in other embodiments, the first driving device 410 and/or the second driving device 420 may also be disposed outside the first pulley block 200 and the second pulley block 300. The outer sides of the first pulley block 200 and the second pulley block 300 refer to a side of the first pulley block 200 away from the second pulley block 300 and a side of the second pulley block 300 away from the first pulley block 200.

In addition, the first driving device 410 and the second driving device 420 may be hydraulic cylinders, electric push rods, or different driving structures such as gear racks, pulley steel cables, and the like. The number of the first driving devices 410 and the number of the second driving devices 420 may also be set according to actual requirements, in this embodiment, the number of the first driving devices 410 and the number of the second driving devices 420 are both one, in other embodiments, the number of the first driving devices 410 may also be two or four, and similarly, the number of the second driving devices 420 may also be two or four.

The trolley frame 100 comprises two bearing frames 110, wherein the two sides of the two bearing frames 110 close to each other are provided with mounting side faces, the mounting side faces are provided with slide ways 113, two ends of the first pulley block 200 are respectively connected with the two slide ways 113 in a sliding manner, and two ends of the second pulley block 300 are respectively connected with the two slide ways 113 in a sliding manner. The first driving device 410 and the second driving device 420 may be disposed on a carrier (not shown) installed between the two carriers 110, or the first driving device 410 and the second driving device 420 may be disposed on the carriers 110 directly.

Further, in the present embodiment, the two bearing frames 110 are parallel to each other and extend along a first direction, the first pulley block 200 and the second pulley block 300 are both disposed between the two bearing frames 110, and the first pulley block 200 and the second pulley block 300 are both slidably connected to the two bearing frames 110 through the slideways 113, so that the first pulley block 200 and the second pulley block 300 can slide along the slideways 113, wherein when the first pulley block 200 and the second pulley block 300 slide along the slideways 113, the first pulley block 200 and the second pulley block 300 can both be regarded as sliding along the bearing frames 110, that is, the first pulley block 200 and the second pulley block 300 can reciprocate along the first direction. In the present embodiment, the first pulley block 200 and the second pulley block 300 both move in a translational manner relative to the carriage 110.

Alternatively, referring to fig. 1 and 2, the slideway 113 includes an upper rail supporting beam 111 and a lower rail supporting beam 112, the upper rail supporting beam 111 and the lower rail supporting beam 112 are spaced apart from each other at the installation side, and the slideway 113 is formed by a space between the spaced upper rail supporting beam 111 and the lower rail supporting beam 112. And the end of the first pulley block 200 is slidably disposed between the upper and lower rail supporting beams 111 and 112, and the end of the second pulley block 300 is slidably disposed between the upper and lower rail supporting beams 111 and 112. The upper rail bearing beam 111 and the lower rail bearing beam 112 which are arranged at intervals form a slideway 113, so that the upper rail bearing beam 111 and the lower rail bearing beam 112 can jointly provide sliding bearing effect for the first pulley block 200 and the second pulley block 300, and the sliding stability of the first pulley block 200 and the second pulley block 300 can be ensured.

The first pulley block 200 and the second pulley block 300 are slidably connected to the slideway 113 in the same way, and the first pulley block 200 is taken as an example for illustration. Wherein, the upper side of the end of the first pulley block 200 is slidably connected with the upper rail supporting beam 111, and the lower side of the end of the first pulley block 200 is slidably connected with the lower rail supporting beam 112, so that the first pulley block 200 can slide along the slideway 113.

In addition, optionally, an anti-abrasion block 114 is provided between the upper rail beam 111 and the first pulley block 200. And/or an anti-abrasion block 114 is arranged between the lower rail supporting beam 112 and the first pulley block 200. And/or an anti-abrasion block 114 is arranged between the upper rail supporting beam 111 and the second pulley block 300. And/or an anti-abrasion block 114 is arranged between the lower rail supporting beam 112 and the second pulley block 300.

In this embodiment, the anti-abrasion blocks 114 are disposed between the upper rail supporting beam 111 and the first pulley block 200, between the lower rail supporting beam 112 and the first pulley block 200, between the upper rail supporting beam 111 and the second pulley block 300, and between the lower rail supporting beam 112 and the second pulley block 300, so as to prevent the first pulley block 200 from being excessively worn with the upper rail supporting beam 111 and the lower rail supporting beam 112, and prevent the second pulley block 300 from being excessively worn with the upper rail supporting beam 111 and the lower rail supporting beam 112, so as to improve the service lives of the first pulley block 200, the second pulley block 300, the upper rail supporting beam 111, and the lower rail supporting beam 112, and ensure the overall strength and safety performance of the crane trolley 10.

It should be understood that in other embodiments, the arrangement of any one wear block 114 between the upper rail beam 111 and the first pulley block 200, the wear block 114 between the lower rail beam 112 and the first pulley block 200, the wear block 114 between the upper rail beam 111 and the second pulley block 300, and the wear block 114 between the lower rail beam 112 and the second pulley block 300, or the arrangement of any two wear blocks 114, or the arrangement of any three wear blocks 114, may be eliminated.

Further, referring to fig. 1, fig. 3 and fig. 4, in the present embodiment, the first pulley block 200 includes a first pulley frame 210, a first pulley 220 and a first pulley shaft 230, two ends of the first pulley frame 210 are movably connected to the trolley frame 100, the first pulley shaft 230 is connected to the first pulley frame 210, the first pulley 220 is rotatably connected to the first pulley shaft 230, and the first driving device 410 is connected to the first pulley frame 210. Two ends of the first pulley frame 210 are respectively connected to the sliding ways 113 on the two bearing frames 110, so that the first pulley frame 210 can slide along the sliding ways 113. In addition, in the present embodiment, the first pulley frame 210 is perpendicular to the two bearing frames 110, and two first pulleys 220 are disposed on the first pulley frame 210 at intervals.

Similarly, in this embodiment, the second pulley block 300 includes a second pulley frame 310, a second pulley 320 and a second pulley shaft 330, two ends of the second pulley frame 310 are slidably connected to the trolley frame 100, the second pulley shaft 330 is connected to the second pulley frame 310, the second pulley 320 is rotatably connected to the second pulley shaft 330, and the second driving device 420 is connected to the second pulley frame 310. Two ends of the second pulley frame 310 are respectively connected to the sliding ways 113 on the two bearing frames 110, so that the second pulley frame 310 can slide along the sliding ways 113. In addition, in the present embodiment, the second pulley frame 310 is perpendicular to the two loading frames 110, and two second pulleys 320 are disposed on the second pulley frame 310 at intervals. That is, the first pulley frame 210 and the second pulley frame 310 are parallel to each other, and the first pulley frame 210 and the second pulley frame 310 are extended along a second direction, wherein the first direction and the second direction are perpendicular.

Further, both ends of the first pulley frame 210 are rectangular, and both ends of the second pulley frame 310 are rectangular. The end of the first pulley yoke 210 is rectangular, so that the upper side and the lower side of the end of the first pulley yoke 210 are parallel to each other, and the end of the first pulley yoke 210 is slidably connected to the upper rail supporting beam 111 and the lower rail supporting beam 112. Similarly, the end of the second pulley frame 310 is rectangular, so that the upper side and the lower side of the end of the second pulley frame 310 are parallel to each other, and the end of the second pulley frame 310 is slidably connected to the upper rail supporting beam 111 and the lower rail supporting beam 112.

In summary, in the crane and the crane trolley 10 provided in this embodiment, the first pulley block 200 and the second pulley block 300 are independently disposed, and the first pulley block 200 can be selectively moved close to or away from the second pulley block 300, or the second pulley block 300 can be selectively moved close to or away from the first pulley block 200, so as to increase or decrease the width between the first pulley block 200 and the second pulley block 300 according to actual requirements, and further achieve the purpose of moving the first pulley block 200 or the second pulley block 300, so as to control the position of the first pulley block 200 and/or the second pulley block 300 according to the actual placement condition of the container, so as to conveniently grab the container, and further achieve the purpose of grabbing and releasing the container with high efficiency and low energy consumption.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.