Trolley traction device and quay crane

Abstract

The invention provides a trolley traction device and a quay crane, and relates to the technical field of hoisting. The trolley traction device comprises a trolley running winding drum, a first bend wheel assembly, a second bend wheel assembly, a first steering wheel assembly and a second steering wheel assembly. A first bend wheel assembly and a second bend wheel assembly are arranged on the sea side of a trolley operation winding drum, so that a first traction rope and a second traction rope are output from the sea side of the trolley operation winding drum, and the trolley operation winding drum can be arranged on the upper portion of a machine room bottom frame through the arrangement mode; a sunken chassis does not need to be arranged at the bottom of the machine room chassis, so that the manufacturing difficulty of the machine room chassis is simplified; due to the fact that the trolley running winding drum is arranged on the upper portion of the machine room chassis, guardrails do not need to be arranged around the trolley running winding drum, the space utilization rate of the machine room is effectively improved, the size of the machine room can be reduced, and the production cost of the machine room is reduced.

Description

Technical Field

[0001] The present invention relates to the field of lifting technology, and in particular to a trolley traction device and a quay crane. Background Art

[0002] At present, most of the quay cranes are equipped with trolley traction mechanisms that are arranged on a sunken chassis of the machine room frame to facilitate the trolley traction wire rope to be pulled out from the front and rear sides of the machine room. This can avoid interference between the wire rope and the machine room frame.

[0003] However, the trolley traction mechanism is arranged on the sunken chassis, which firstly increases the manufacturing difficulty of the entire machine room chassis. Secondly, the trolley traction mechanism is not coplanar with the main plane of the chassis, which increases the workload of the subsequent installation of the entire mechanism. Thirdly, the maintenance space and convenience of the entire mechanism are limited on the sunken chassis. Summary of the invention

[0004] The invention provides a trolley traction device, which is used to solve the problems in the prior art that the manufacturing of a machine room chassis is difficult and the installation and maintenance of the trolley traction mechanism are inconvenient.

[0005] The present invention provides a trolley traction device, comprising: A machine room, wherein the lower part of the chassis of the machine room is flat; A trolley running drum, the trolley running drum is arranged on the upper part of the bottom frame of the machine room, and the outer circumference of the trolley running drum is respectively wound with a first traction rope and a second traction rope in opposite directions; A first redirecting wheel assembly, the first redirecting wheel assembly being arranged on the sea surface of the trolley running reel; A second redirecting wheel assembly, the second redirecting wheel assembly is arranged on the sea surface of the trolley running reel; A first steering wheel assembly and a second steering wheel assembly, wherein the first steering wheel assembly and the second steering wheel assembly are arranged at both ends of the beam in a one-to-one correspondence; the first traction rope is output from the sea-side of the trolley running drum, and is connected to the sea-side of the trolley after bypassing the first redirecting wheel assembly and the first steering wheel assembly in sequence; the second traction rope is output from the sea-side of the trolley running drum, and is connected to the land side of the trolley after bypassing the second redirecting wheel assembly and the second steering wheel assembly in sequence.

[0006] According to a trolley traction device provided by the present invention, the first redirecting wheel assembly includes two first redirecting wheel groups, the two first redirecting wheel groups are arranged at intervals along the length direction of the trolley running drum, and the two first traction ropes output by the trolley running drum are wound around the two first redirecting wheel groups in a one-to-one correspondence.

[0007] According to a trolley traction device provided by the present invention, the first redirecting wheel group includes a first upper redirecting wheel and a first lower redirecting wheel, the first upper redirecting wheel is arranged above the first lower redirecting wheel, and the first traction rope output by the trolley running drum passes around the first upper redirecting wheel and the first lower redirecting wheel in sequence.

[0008] According to a trolley traction device provided by the present invention, the first upper redirecting wheel and the first lower redirecting wheel are in the same vertical plane, and the center of the first upper redirecting wheel and the center of the first lower redirecting wheel are on the same vertical line.

[0009] According to a trolley traction device provided by the present invention, the second redirecting wheel assembly includes two second redirecting wheel groups, the two second redirecting wheel groups are arranged at intervals along the length direction of the trolley running drum, and the two second traction ropes output by the trolley running drum are wound around the two second redirecting wheel groups in a one-to-one correspondence; the two second redirecting wheel groups are located between the two first redirecting wheel groups.

[0010] According to a trolley traction device provided by the present invention, the second redirecting wheel group includes a second upper redirecting wheel and a second lower redirecting wheel, the second upper redirecting wheel is arranged above the second lower redirecting wheel, and the second traction rope output by the trolley running drum is passed around the second upper redirecting wheel and the second lower redirecting wheel in sequence.

[0011] According to a trolley traction device provided by the present invention, the second upper redirecting wheel and the second lower redirecting wheel are in the same vertical plane, and the center of the second upper redirecting wheel and the center of the second lower redirecting wheel are on the same vertical line.

[0012] According to a trolley traction device provided by the present invention, the height of the second upper redirecting wheel is less than the height of the first upper redirecting wheel, and the height of the second lower redirecting wheel is equal to the height of the first lower redirecting wheel.

[0013] A trolley traction device provided according to the present invention also includes: A tensioning adjustment assembly, wherein the tensioning adjustment assembly is connected to the first upper redirecting wheel or the second steering wheel assembly, and the tensioning adjustment assembly is used to adjust the distance from the first upper redirecting wheel or the second steering wheel assembly to the trolley running drum, so as to adjust the tension of the first traction rope or the second traction rope.

[0014] The present invention also provides a quay crane, comprising a beam, a pitch mechanism and any one of the above-mentioned trolley traction devices, wherein the machine room is arranged on the beam; the pitch mechanism is arranged on the upper part of the chassis of the machine room and is located on the land side of the trolley running drum.

[0015] The trolley traction device provided by the present invention respectively arranges a first redirecting wheel assembly and a second redirecting wheel assembly on the sea side of the trolley running drum, so that the first traction rope and the second traction rope are both output from the sea side of the trolley running drum. With such an arrangement, the trolley running drum can be arranged on the upper part of the machine room frame, and there is no need to arrange a sunken frame at the bottom of the machine room frame, thereby simplifying the manufacturing difficulty of the machine room frame; since the trolley running drum is arranged on the upper part of the machine room frame, there is no need to arrange a guardrail around the trolley running drum, which effectively improves the space utilization rate of the machine room, thereby reducing the volume of the machine room and reducing the production cost of the machine room. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is one of the three-dimensional structural schematic diagrams of the trolley traction device provided by the present invention.

[0018] Figure 2 It is a side cross-sectional structural schematic diagram of the machine room provided by the present invention.

[0019] Figure 3 This is the second three-dimensional structural schematic diagram of the trolley traction device provided by the present invention.

[0020] Figure 4 It is a structural schematic diagram of the quay crane provided by the present invention.

[0021] Reference numerals: 100, trolley running drum; 110, first traction rope; 120, second traction rope; 200, first redirecting wheel assembly; 210, first upper redirecting wheel; 220, first lower redirecting wheel; 300, second redirecting wheel assembly; 310, second upper redirecting wheel; 320, second lower redirecting wheel; 400, first steering wheel assembly; 410, first steering wheel; 500, second steering wheel assembly; 510, second steering wheel; 600, tensioning adjustment assembly; 700, trolley; 710, guide wheel; 800, pitch mechanism; 900, machine room; 910, beam. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0025] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0027] Combine the following Figure 1-Figure 3 The specific structure and working principle of the trolley traction device of the present invention are described.

[0028] like Figure 1 As shown, the trolley traction device includes a machine room 900, a trolley running drum 100, a first redirecting wheel assembly 200, a second redirecting wheel assembly 300, a first steering wheel assembly 400 and a second steering wheel assembly 500. The lower part of the chassis of the machine room 900 is a plane. The trolley running drum 100 is arranged on the upper part of the chassis of the machine room 900. The outer periphery of the trolley running drum 100 is respectively wound with a first traction rope 110 and a second traction rope 120 in opposite directions; the first redirecting wheel assembly 200 is arranged on the sea surface of the trolley running drum 100; the second redirecting wheel assembly 300 is arranged on the sea side of the trolley running drum 100; the first steering wheel assembly 400 and the second steering wheel assembly 500 are arranged at both ends of the beam 910 in a one-to-one correspondence; the first traction rope 110 is output from the sea side of the trolley running drum 100, and is connected to the sea side of the trolley 700 after bypassing the first redirecting wheel assembly 200 and the first steering wheel assembly 400 in sequence; the second traction rope 120 is output from the sea side of the trolley running drum 100, and is connected to the land side of the trolley 700 after bypassing the second redirecting wheel assembly 300 and the second steering wheel assembly 500 in sequence.

[0029] The trolley traction device provided by the present invention respectively arranges the first redirecting wheel assembly 200 and the second redirecting wheel assembly 300 on the sea side of the trolley running drum 100, so that the first traction rope 110 and the second traction rope 120 are both output from the sea side of the trolley running drum 100. With such an arrangement, the trolley running drum 100 can be arranged on the upper part of the machine room frame, and there is no need to arrange a sunken frame at the bottom of the machine room frame, thereby simplifying the manufacturing difficulty of the machine room frame; since the trolley running drum 100 is arranged on the upper part of the machine room frame, there is no need to arrange a guardrail around the trolley running drum 100, which effectively improves the space utilization rate of the machine room 900, thereby reducing the volume of the machine room 900 and reducing the production cost of the machine room 900.

[0030] In one embodiment of the present invention, Figure 1 As shown, the trolley running drum 100 is located above the moving track of the trolley 700, and the trolley running drum 100 is perpendicular to the moving track of the trolley 700. The first traction rope 110 is output from the upper part of the trolley running drum 100, and the second traction rope 120 is output from the lower part of the trolley running drum 100. Regardless of whether the trolley running drum 100 rotates forward or reverse, one of the first traction rope 110 and the second traction rope 120 is wound around the outer periphery of the trolley running drum 100, and the other of the first traction rope 110 and the second traction rope 120 is released from the outer periphery of the trolley running drum 100.

[0031] In one embodiment of the present invention, Figure 1 As shown, the first redirecting wheel assembly 200 includes two first redirecting wheel groups, and the two first redirecting wheel groups are arranged at intervals along the length direction of the trolley running drum 100. The distance between the two first redirecting wheel groups is greater than the distance between the two second redirecting wheel groups, and the two first redirecting wheel groups are arranged in parallel and symmetrically. The two first traction ropes 110 output by the trolley running drum 100 are wound around the two first redirecting wheel groups in a one-to-one correspondence. Specifically, the first traction rope 110 extends toward the sea side of the trolley running drum 100 after bypassing the corresponding first redirecting wheel group, and then extends toward the land side of the trolley running drum 100 after bypassing the first steering wheel assembly 400. The first traction rope 110 between the first redirecting wheel group and the trolley running drum 100 is at an acute angle to the horizontal plane, and of course it can also be in a horizontal state.

[0032] It should be noted here that the first redirecting wheel set is connected to the beam 910, and the distance between the first redirecting wheel set and the trolley running drum 100 is specifically determined according to the position of the trolley running drum 100 on the chassis of the machine room.

[0033] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the first redirecting wheel group includes a first upper redirecting wheel 210 and a first lower redirecting wheel 220. The first upper redirecting wheel 210 is arranged above the first lower redirecting wheel 220. The first upper redirecting wheel 210 and the first lower redirecting wheel 220 are both rotatably matched with the beam 910. The first traction rope 110 outputted from the trolley running drum 100 passes around the first upper redirecting wheel 210 and the first lower redirecting wheel 220 in sequence. The first traction rope 110 outputted from the trolley running drum 100 first passes around the first upper redirecting wheel 210, and the first traction rope 110 changes from horizontal motion to downward motion. After the first traction rope 110 passes around the first lower redirecting wheel 220, the first traction rope 110 changes from downward motion to seaward motion toward the trolley running drum 100 (i.e., toward the sea). Figure 1This allows a certain distance between the first traction rope 110 between the first steering wheel assembly 400 and the first lower redirecting wheel 220 and the machine room chassis, thereby avoiding interference between the first traction rope 110 between the first steering wheel assembly 400 and the first lower redirecting wheel 220 and the machine room chassis.

[0034] In one embodiment of the present invention, Figure 1 As shown, the first upper redirecting wheel 210 and the first lower redirecting wheel 220 are in the same vertical plane, which can avoid the wear of the first traction rope 110, the first upper redirecting wheel 210 and the first lower redirecting wheel 220, and extend the service life of the first traction rope 110. The center of the first upper redirecting wheel 210 and the center of the first lower redirecting wheel 220 are in the same vertical straight line, so that the first traction rope 110 between the first upper redirecting wheel 210 and the first lower redirecting wheel 220 is in an inclined state; of course, in order to make the first traction rope 110 between the first upper redirecting wheel 210 and the first lower redirecting wheel 220 in a vertical state, the center of the first upper redirecting wheel 210 and the center of the first lower redirecting wheel 220 may not be in the same vertical straight line.

[0035] In one embodiment of the present invention, Figure 1 As shown, the second redirecting wheel assembly 300 includes two second redirecting wheel groups, which are arranged at intervals along the length direction of the trolley running drum 100, and the two second redirecting wheel groups are located between the two first redirecting wheel groups. The two second redirecting wheel groups are arranged in parallel and symmetrically, and the distances between the two first redirecting wheel groups and the corresponding first redirecting wheel groups are equal. The two second traction ropes 120 output by the trolley running drum 100 are wound around the two second redirecting wheel groups in a one-to-one correspondence. Specifically, the second traction rope 120 extends toward the land side of the trolley running drum 100 after bypassing the corresponding second redirecting wheel group, and then extends toward the sea side of the trolley running drum 100 after bypassing the second steering wheel assembly 500. The second traction rope 120 between the second redirecting wheel group and the trolley running drum 100 is in a horizontal state, and can also be at an acute angle with the horizontal plane.

[0036] It should be noted here that the second redirecting wheel set is connected to the beam 910, and the distance between the second redirecting wheel set and the trolley running drum 100 is specifically determined according to the position of the trolley running drum 100 on the chassis of the machine room.

[0037] In one embodiment of the present invention, Figure 1 and Figure 2As shown, the second redirecting wheel group includes a second upper redirecting wheel 310 and a second lower redirecting wheel 320. The second upper redirecting wheel 310 is arranged above the second lower redirecting wheel 320. The second upper redirecting wheel 310 and the second lower redirecting wheel 320 are both rotatably matched with the beam 910. The second traction rope 120 outputted from the trolley running drum 100 sequentially bypasses the second upper redirecting wheel 310 and the second lower redirecting wheel 320. The second traction rope 120 outputted from the trolley running drum 100 first bypasses the second upper redirecting wheel 310, and the second traction rope 120 changes from horizontal movement to downward movement. After the second traction rope 120 bypasses the second lower redirecting wheel 320, the second traction rope 120 changes from downward movement to movement toward the land side of the trolley running drum 100 (i.e., toward the land side). Figure 1 This allows a certain distance between the second traction rope 120 between the second lower redirecting wheel 320 and the second steering wheel assembly 500 and the machine room chassis, thereby avoiding interference between the second traction rope 120 between the second lower redirecting wheel 320 and the second steering wheel assembly 500 and the machine room chassis.

[0038] In one embodiment of the present invention, Figure 1 As shown, the second upper redirecting wheel 310 and the second lower redirecting wheel 320 are in the same vertical plane, which can avoid the wear of the second traction rope 120, the second upper redirecting wheel 310 and the second lower redirecting wheel 320, and extend the service life of the second traction rope 120. The center of the second upper redirecting wheel 310 and the center of the second lower redirecting wheel 320 are on the same vertical line, so that the second traction rope 120 between the second upper redirecting wheel 310 and the second lower redirecting wheel 320 is in an inclined state. Of course, in order to make the second traction rope 120 between the second upper redirecting wheel 310 and the second lower redirecting wheel 320 in a vertical state, the center of the second upper redirecting wheel 310 and the center of the second lower redirecting wheel 320 may not be on the same vertical line.

[0039] In one embodiment of the present invention, the second upper redirecting wheel 310 is arranged in parallel with the first upper redirecting wheel 210, and the height of the second upper redirecting wheel 310 is less than that of the first upper redirecting wheel 210, that is, the height of the highest point of the rope groove of the second upper redirecting wheel 310 is less than that of the highest point of the rope groove of the first upper redirecting wheel 210. The height of the second lower redirecting wheel 320 is equal to the height of the first lower redirecting wheel 220, and the central axis of the second lower redirecting wheel 320 is in the same straight line as the central axis of the first lower redirecting wheel 220.

[0040] In one embodiment of the present invention, two guide wheels 710 are provided on both sides of the trolley 700, and the two guide wheels 710 are arranged at intervals along the length direction of the trolley running reel 100. Of course, the number of guide wheels 710 on each side of the trolley 700 is not limited thereto, and is specifically determined according to the number of traction ropes.

[0041] In one embodiment of the present invention, Figure 1 As shown, the first steering wheel assembly 400 includes two first steering wheels 410, which are arranged at one end of the beam 910 close to the sea surface, and the two first steering wheels 410 are arranged at intervals along the length direction of the trolley running drum 100. The two first steering wheels 410 are arranged vertically, and the two first steering wheels 410 are both rotatably matched with the beam 910. The distance between the two first steering wheels 410 is equal to the distance between the two first lower redirecting wheels 220. After the two first traction ropes 110 pass around the corresponding first lower redirecting wheels 220, they pass around the corresponding first steering wheels 410, and finally pass around the guide wheels 710 of the sea surface of the trolley 700 and are connected to each other.

[0042] In one embodiment of the present invention, Figure 1 As shown, the second steering wheel assembly 500 includes two second steering wheels 510, which are arranged at one end of the beam 910 close to the land side, and the two second steering wheels 510 are arranged at intervals along the length direction of the trolley running drum 100. The two second steering wheels 510 are arranged vertically, and the two second steering wheels 510 are both rotatably matched with the beam 910. The distance between the two second steering wheels 510 is equal to the distance between the two second lower redirecting wheels 320. After the two second traction ropes 120 pass around the corresponding second lower redirecting wheels 320, they pass around the corresponding second steering wheels 510, and finally pass around the guide wheels 710 on the land side of the trolley 700 and are connected to each other.

[0043] In one embodiment of the present invention, Figure 1 As shown, the trolley traction device also includes a tensioning adjustment assembly 600, which is connected to the first upper redirecting wheel 210 or the second steering wheel assembly 500. The tensioning adjustment assembly 600 is used to adjust the distance from the first upper redirecting wheel 210 or the second steering wheel assembly 500 to the trolley running drum 100 to adjust the tension of the first traction rope 110 or the second traction rope 120.

[0044] In one embodiment of the present invention, Figure 1 As shown, the tension adjustment assembly 600 includes an oil cylinder, which is located on the land side of the trolley running drum 100, and the cylinder body of the oil cylinder is connected to the crossbeam of the beam 910. The second steering wheel 510 can slide relative to the beam 910 along the length direction of the beam 910. The telescopic rod of the oil cylinder is connected to the second steering wheel 510, and the oil cylinder drives the second steering wheel 510 to slide along the length direction of the beam 910, thereby adjusting the tension of the second traction rope 120. Preferably, the tension adjustment assembly 600 includes two oil cylinders, and the telescopic rods of the two oil cylinders are connected to the two second steering wheels 510 in a one-to-one correspondence, and the tension of the two second traction ropes 120 can be adjusted separately through the two oil cylinders.

[0045] In one embodiment of the present invention, Figure 3 As shown, the tension adjustment assembly 600 includes an oil cylinder, which is located at the sea side of the trolley running drum 100, and the cylinder body of the oil cylinder is connected to the crossbeam of the beam 910. The first upper redirecting wheel 210 can slide relative to the beam 910 along the length direction of the beam 910. The telescopic rod of the oil cylinder is connected to the first upper redirecting wheel 210, and the oil cylinder drives the first upper redirecting wheel 210 to slide along the length direction of the beam 910, thereby adjusting the tension of the first traction rope 110. Preferably, the tension adjustment assembly 600 includes two oil cylinders, and the telescopic rods of the two oil cylinders are connected to the two first upper redirecting wheels 210 in a one-to-one correspondence. The tension of the two first traction ropes 110 can be adjusted separately by the two oil cylinders. Since there are many other devices arranged at the tail of the beam 910 and the maintenance space is tight, by setting the oil cylinder at the sea side of the trolley running drum 100, the maintenance space at the tail of the beam 910 can be increased, which is convenient for repairing the oil cylinder.

[0046] The trolley traction device provided by the present invention respectively arranges the first redirecting wheel assembly 200 and the second redirecting wheel assembly 300 on the sea side of the trolley running drum 100, so that the first traction rope 110 and the second traction rope 120 are both output from the sea side of the trolley running drum 100. With such an arrangement, the trolley running drum 100 can be arranged on the upper part of the machine room frame, and there is no need to arrange a sunken frame at the bottom of the machine room frame, thereby simplifying the manufacturing difficulty of the machine room frame; since the trolley running drum 100 is arranged on the upper part of the machine room frame, there is no need to arrange a guardrail around the trolley running drum 100, which effectively improves the space utilization rate of the machine room 900, thereby reducing the volume of the machine room 900 and reducing the production cost of the machine room 900.

[0047] like Figure 4 As shown, the present invention also provides a quay crane, comprising a beam, a pitch mechanism and a trolley traction device as described in any of the above embodiments, wherein the machine room is arranged on the beam; the pitch mechanism is arranged on the upper part of the chassis of the machine room and is located on the land side of the trolley running drum. The quay crane quay crane can simplify the structure of the trolley traction device by arranging the pitch mechanism 800 on the land side of the trolley running drum 100, and facilitate the installation and removal of the trolley running drum 100.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A trolley traction device, It is characterized in that include: A machine room (900), wherein the lower part of the frame of the machine room (900) is a flat surface; A trolley running drum (100), the trolley running drum (100) being arranged on the upper part of the bottom frame of the machine room (900); a first traction rope (110) and a second traction rope (120) are respectively wound around the outer circumference of the trolley running drum (100) in opposite directions; A first redirecting wheel assembly (200), the first redirecting wheel assembly (200) being arranged on the sea surface of the trolley running reel (100); A second redirecting wheel assembly (300), the second redirecting wheel assembly (300) being arranged on the sea surface of the trolley running reel (100); A first steering wheel assembly (400) and a second steering wheel assembly (500), the first steering wheel assembly (400) and the second steering wheel assembly (500) are arranged at two ends of the beam (910) in a one-to-one correspondence; the first traction rope (110) is output from the sea side of the trolley running drum (100), and is connected to the sea side of the trolley (700) after bypassing the first redirecting wheel assembly (200) and the first steering wheel assembly (400) in sequence; the second traction rope (120) is output from the sea side of the trolley running drum (100), and is connected to the land side of the trolley (700) after bypassing the second redirecting wheel assembly (300) and the second steering wheel assembly (500) in sequence.

2. The trolley traction device according to claim 1, It is characterized in that The first redirecting wheel assembly (200) comprises two first redirecting wheel groups, the two first redirecting wheel groups are arranged at intervals along the length direction of the trolley running drum (100), and the two first traction ropes (110) output by the trolley running drum (100) are wound around the two first redirecting wheel groups in a one-to-one correspondence.

3. The trolley traction device according to claim 2, It is characterized in that The first redirecting wheel assembly comprises a first upper redirecting wheel (210) and a first lower redirecting wheel (220); the first upper redirecting wheel (210) is arranged above the first lower redirecting wheel (220); and the first traction rope (110) output by the trolley running drum (100) passes around the first upper redirecting wheel (210) and the first lower redirecting wheel (220) in sequence.

4. The trolley traction device according to claim 3, It is characterized in that The first upper redirecting wheel (210) and the first lower redirecting wheel (220) are located in the same vertical plane, and the center of the first upper redirecting wheel (210) and the center of the first lower redirecting wheel (220) are located on the same vertical straight line.

5. The trolley traction device according to claim 3, It is characterized in that The second redirecting wheel assembly (300) comprises two second redirecting wheel groups, the two second redirecting wheel groups are arranged at intervals along the length direction of the trolley running drum (100), and the two second traction ropes (120) output by the trolley running drum (100) are wound around the two second redirecting wheel groups in a one-to-one correspondence; the two second redirecting wheel groups are located between the two first redirecting wheel groups.

6. The trolley traction device according to any one of claims 3 to 5, It is characterized in that The second redirecting wheel assembly comprises a second upper redirecting wheel (310) and a second lower redirecting wheel (320), wherein the second upper redirecting wheel (310) is arranged above the second lower redirecting wheel (320), and the second traction rope (120) outputted by the trolley running drum (100) passes around the second upper redirecting wheel (310) and the second lower redirecting wheel (320) in sequence.

7. The trolley traction device according to claim 6, It is characterized in that The second upper redirecting wheel (310) and the second lower redirecting wheel (320) are located in the same vertical plane, and the center of the second upper redirecting wheel (310) and the center of the second lower redirecting wheel (320) are located on the same vertical straight line.

8. The trolley traction device according to claim 6, It is characterized in that The height of the second upper redirecting wheel (310) is less than the height of the first upper redirecting wheel (210), and the height of the second lower redirecting wheel (320) is equal to the height of the first lower redirecting wheel (220).

9. The trolley traction device according to any one of claims 3 to 5, It is characterized in that Also includes: A tension adjustment assembly (600), the tension adjustment assembly (600) being connected to the first upper redirecting wheel (210) or the second steering wheel assembly (500), the tension adjustment assembly (600) being used to adjust the distance between the first upper redirecting wheel (210) or the second steering wheel assembly (500) and the trolley running drum (100), so as to adjust the tension of the first traction rope (110) or the second traction rope (120).

10. A quay crane, It is characterized in that It comprises a beam (910), a pitch mechanism (800) and the trolley traction device according to any one of claims 1 to 9, wherein the machine room (900) is arranged on the beam; the pitch mechanism (800) of the quay crane is arranged on the upper part of the chassis of the machine room (900) and is located on the land side of the trolley running drum (100).

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