Gantry crane winding system and portal crane

Abstract

The utility model relates to a portal crane winding system and a portal crane, the portal crane winding system comprises a winding drum and a lifting appliance, each of four edges of the lifting appliance is connected with one end of each of two steel wire ropes which are distributed in a V shape, and the other ends of the steel wire ropes are connected into the winding drum and the lifting appliance; the two steel wire ropes parallel to the two edges of the advancing direction of the portal crane trolley are connected with the guide component, the guide component comprises a telescopic part, the telescopic part of the telescopic part is connected with a pulley, and the pulley makes contact with the steel wire ropes. The telescopic part can stretch out and draw back so that the included angle of the two steel wire ropes on the edge, parallel to the advancing direction of the trolley, of the lifting appliance can be changed through the pulley, the left-right inclining function of the lifting appliance is achieved through the winding system, and the applicability of the winding system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane technical field, concretely relates to a portal crane winding system and portal crane. BACKGROUND

[0002] The statements herein merely provide background information related to the utility model and do not necessarily constitute the prior art.

[0003] The container gantry crane is the mainstream equipment of the container wharf yard, and the most common winding form of the crane is 8-rope winding, and 8 steel wires are output by a single drum, guided through a pulley and connected to the fixed end of the steel wire on the upper frame of the lifting appliance, and the steel wires in the trolley and the car direction are in 4 completely equal V-shaped structures, so that the excellent roll damping of the lifting appliance in the trolley and the car direction is realized, and the planar rotation of the lifting appliance and the micro translation of the trolley and the car in two directions are realized through the translation mechanism of the intersection fixing point of the 4 steel wires on the upper frame, but the 8-rope winding cannot realize the left and right tilt function of the lifting appliance, which limits the application of the eight-rope winding system of the portal crane in the wharf with a large slope and the tire type portal crane. SUMMARY

[0004] The utility model discloses a portal crane winding system and portal crane can realize the left and right tilt function of the lifting appliance, improve the applicability of the winding system.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] Firstly, the utility model discloses an embodiment of a portal crane winding system, which comprises a drum and a lifting appliance, four edges of the lifting appliance are connected with the ends of two V-shaped steel wires respectively, the other ends of the steel wires are connected to the drum, in the lifting appliance, the two steel wires of the two edges parallel to the trolley running direction of the portal crane are connected with a guide member, the guide member comprises a telescopic component, the telescopic part of the telescopic component is connected with a pulley, the pulley is in contact with the steel wire, and the telescopic component can be telescopic to change the included angle of the two steel wires of the edge of the lifting appliance parallel to the trolley running direction through the pulley.

[0007] Optionally, the telescopic part of the telescopic component is connected with a pulley support, and the pulley support is rotatably connected with a pulley.

[0008] Optionally, the pulley support comprises two pulley mounting plates arranged in parallel, the pulley is arranged between the two pulley mounting plates and rotatably connected with a wheel shaft located between the two pulley mounting plates, and the two pulley mounting plates are connected with the telescopic part of the telescopic component.

[0009] Optionally, a first pin shaft is arranged between the two pulley mounting plates near the end of the telescopic part, and the telescopic part is hinged to the first pin shaft.

[0010] Optionally, the end of the fixed part of the telescopic part is hinged to a second pin shaft, and the second pin shaft is fixed on a fixed seat for fixing with the trolley of the gantry crane.

[0011] Optionally, a groove matched with the steel wire rope is arranged on the wheel surface of the pulley, and the steel wire rope is embedded in the groove.

[0012] Optionally, the groove is an arc-shaped groove matched with the steel wire rope.

[0013] Optionally, the pulley is rotatably connected to a pulley support through an axle, the pulley support is connected to the telescopic part, and the two ends of the axle extend into a guide groove of a guide seat, the guide groove is arranged along the running direction of the trolley of the gantry crane, and the guide seat is used for fixing with the trolley of the gantry crane.

[0014] Optionally, the telescopic part is a hydraulic oil cylinder with an axis arranged parallel to the running direction of the trolley of the gantry crane.

[0015] In the second aspect, the embodiment of the utility model provides a gantry crane which is provided with the winding system of the gantry crane.

[0016] The utility model has the advantages of the following:

[0017] The winding system of the utility model, the two steel wire ropes parallel to the two edges of the running direction of the trolley of the gantry crane are connected with the guide member, the guide member comprises a telescopic part, the telescopic part is connected with the pulley, the pulley is in contact with the steel wire rope, the telescopic part can be telescoped to realize the included angle of the two steel wire ropes of the parallel edge of the running direction of the trolley through the pulley, the two telescopic parts on one side of the spreader are elongated, can make the included angle of the two steel wire ropes increase, the spreader on this side rises, the two telescopic parts on the other side of the spreader are contracted, can make the included angle of the two steel wire ropes decrease, the spreader on this side falls, thereby realizing the left and right tilting function of the spreader, and the applicability of the eight-rope winding system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification of this application form a part of this application and serve to further provide a further understanding of the application, the illustrative embodiments of the application and its description serve to explain the application, and do not limit the application.

[0019] Figure 1 It is the whole structure schematic view of the utility model embodiment 1;

[0020] Figure 2 It is the guide member front view of the utility model embodiment 1.

[0021] Figure 3 This is a top view of the guide component of Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of the working principle of Embodiment 1 of this utility model. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the working principle of Embodiment 1 of this utility model. Figure 2 ;

[0024] Among them, 1. drum, 2. lifting device, 3. wire rope, 4. wire rope joint, 5. guide wheel, 6. guide wheel, 7. guide component;

[0025] 7-1. Fixed seat, 7-2. Pulley, 7-3. Pulley mounting plate, 7-4. Hydraulic cylinder, 7-5. Guide seat, 7-6. Guide groove. Detailed Implementation

[0026] For ease of description, the words "up," "down," "left," and "right" appearing in this utility model only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings. They do not limit the structure and are merely for the purpose of facilitating the description of this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1

[0028] This embodiment provides a winding system for a gantry crane, which is an eight-rope winding system, such as... Figure 1 As shown, the device includes a drum 1 and a lifting device 2. The axis of the drum 1 is parallel to the travel direction of the gantry crane trolley. The lifting device 2 has four edges, two of which are parallel to the travel direction of the gantry crane trolley and are defined as longitudinal edges in this embodiment. The other two edges are defined as transverse edges, which are perpendicular to the longitudinal edges.

[0029] Each edge of the lifting device 2 is connected to the bottom end of two wire ropes 3 via wire rope joints 4. The two wire ropes 3 connected at each edge are distributed in a V-shape. Since the lifting device 2 has four edges, it has eight wire ropes 3. The top ends of the eight wire ropes 3 are connected to the drum 1.

[0030] Among them, the tops of the two wire ropes 3 located at the longitudinal edge pass over the guide wheel 5 and are connected to the drum 1, and the tops of the two wire ropes 3 located at the transverse edge pass over the guide wheel 6 and are connected to the drum 1.

[0031] The above structure can adopt the structure of the existing eight-rope winding system of the portal crane, and further technical details are not described herein.

[0032] In the embodiment, the guide members 7 connected by the two steel wires 3 at the longitudinal edges of the spreader 2 are coaxially arranged, as shown in the figure, the guide member comprises a telescopic part, the telescopic part is installed on a fixing seat 7-1, the fixing seat 7-1 is used for being fixed on the trolley of the portal crane, and the axis direction of the telescopic part is parallel to the advancing direction of the trolley of the portal crane.

[0033] In the embodiment, the guide members 7 connected by the two steel wires 3 at the longitudinal edges of the spreader 2 are coaxially arranged, as shown in the figure, the guide member comprises a telescopic part, the telescopic part is installed on a fixing seat 7-1, the fixing seat 7-1 is used for being fixed on the trolley of the portal crane, and the axis direction of the telescopic part is parallel to the advancing direction of the trolley of the portal crane. Figures 2-3

[0034] The telescopic part comprises a fixed part and a telescopic part, and the telescopic part can produce telescopic movement relative to the fixed part.

[0035] The telescopic part comprises a fixed part and a telescopic part, and the telescopic part can produce telescopic movement relative to the fixed part.

[0036] Further, in order to prevent the pulley 7-2 from being separated from the steel wire 3, a groove is arranged on the wheel surface of the pulley 7-2, the groove adopts an arc-shaped groove matched with the steel wire, the steel wire 3 is embedded in the arc-shaped groove,

[0037] When the telescopic parts of the two guide members 7 at the same side are extended, the pulley 7-2 acts on the steel wire 3, and since the length of the steel wire 3 remains unchanged, the included angle between the two steel wires 3 becomes larger, and the edge of the spreader 2 at the side is lifted. On the contrary, if the telescopic parts of the two guide members 7 are retracted, the pulley 7-2 acts on the steel wire 3, and since the length of the steel wire 3 remains unchanged, the included angle between the two steel wires 3 becomes smaller, and the edge of the spreader 2 at the side is lowered.

[0038] The pulley support comprises two pulley mounting plates 7-3 arranged in parallel, the pulley mounting plates 7-3 are arranged parallel to the advancing direction of the trolley of the portal crane, the pulley 7-2 is arranged between the two pulley mounting plates 7-3 and is rotationally connected with the pulley mounting plates 7-3 through an axle.

[0039] The end portions of the two pulley mounting plates 7-3 close to the telescopic part are connected with the telescopic part, and the telescopic part drives the two pulley mounting plates to move parallel to the advancing direction of the trolley of the portal crane.​

[0040] In this embodiment, the telescopic component adopts a hydraulic cylinder 7-4 with its axis parallel to the travel direction of the gantry crane trolley. The cylinder body of the hydraulic cylinder 7-4 serves as the fixed part, and its piston rod serves as the telescopic part.

[0041] The end of the cylinder body of the hydraulic cylinder 7-4 is hinged to the second pin, which is fixed on the fixed seat 7-1. The fixed seat 7-1 is used to weld and fix it to the trolley of the gantry crane.

[0042] The piston rod of the hydraulic cylinder 7-4 is hinged to the first pin, which is fixed between the ends of the two pulley mounting plates 7-3 near the extension of the hydraulic cylinder 7-4.

[0043] Furthermore, in order to guide the movement of the pulley bracket and pulley 7-2, both ends of the axle connected to pulley 7-2 extend to the outside of pulley mounting plate 7-3. The ends of the axle are embedded in the guide groove 7-6 provided in guide seat 7-5. The long axis of guide groove 7-6 is set along the travel direction of the gantry crane trolley. The axle is slidably connected to guide seat 7-5 through guide groove 7-6, and the movement of pulley bracket and pulley 7-2 is guided by guide groove 7-6.

[0044] The guide seat 7-5 is used for welding and fixing to the trolley of the gantry crane.

[0045] The working principle of the winding system in this embodiment for left and right tilt adjustment is as follows:

[0046] like Figures 4-5 As shown, when the spreader and container are tilted to the right, the two sets of hydraulic cylinders 7-4 on the left extend, and the distance between the two sets of pulleys 7-2 and the center line changes from 2335mm to 2408mm. The two sets of pulleys 7-2 move outward by 73mm along the direction of travel of the trolley. Since the overall length of the wire rope 3 remains unchanged during this process, the left edge of the spreader 2 and the wire rope joint 4 move upward by 130mm.

[0047] The two sets of hydraulic cylinders 7-4 on the right retract, and the distance between the two sets of pulleys 7-2 and the center line changes from 2335mm to 2260mm. The two sets of pulleys 7-2 move inward by 75mm along the direction of the trolley's travel. Since the overall length of the wire rope 3 on this side remains unchanged during this process, the right edge of the lifting device 2 is connected to the wire rope joint 4 and moves down by 130mm.

[0048] Since the wire rope 3 of the lateral edge of the spreader 2 and the wire rope joint 4 do not change, they can be used as the hinge point of the left and right tilting, and the wire rope joint 4 on the left side of the spreader 2 is moved up by 130mm together with the left edge of the spreader 2, and the wire rope joint 4 on the right side is moved down by 130mm together with the right edge of the spreader 2, so that the spreader 2 is tilted to the right by 3 degrees, and the four groups of pulleys 7-2 are kept in position, that is, the right tilting posture is kept.

[0049] The eight-wire winding system of the portal crane of the embodiment realizes the missing left and right tilting function of the conventional eight-wire winding system through the four guide members 7, and improves the applicability of the eight-wire winding system.

[0050] Embodiment 2

[0051] The embodiment provides a portal crane provided with the eight-wire winding system of the portal crane of the embodiment 1, wherein the fixed seat 7-1 and the guide seat 7-5 are welded and fixed with a trolley of the portal crane, and the remaining structure of the portal crane can adopt the prior art, and is not described in detail here.

[0052] Although the specific embodiments of the utility model are described above with reference to the drawings, it is not a limitation on the protection scope of the utility model, and those skilled in the art should understand that various modifications or deformations made by the skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A portal crane winding system comprising a drum and a spreader, at four edges of the spreader, each edge is connected with one end of two V-shaped distributed steel wires, the other end of the steel wires is connected to the drum, characterized in that, In the spreader, two steel wires parallel to the two edges of the direction of travel of the trolley of the gantry crane are connected with the guide member, the guide member comprises a telescopic part, the telescopic part of the telescopic part is connected with the pulley, the pulley is in contact with the steel wire, and the telescopic part can be telescoped to change the included angle of the two steel wires of the edge of the spreader parallel to the direction of travel of the trolley through the pulley.

2. A portal crane winding system as claimed in claim 1, characterized in that The telescopic part of the telescopic part is connected with the pulley support, and the pulley support is rotationally connected with the pulley.

3. A portal crane winding system as claimed in claim 2, characterized in that The pulley support comprises two pulley mounting plates arranged in parallel, the pulley is arranged between the two pulley mounting plates and is rotationally connected with the wheel shaft located between the two pulley mounting plates, and the two pulley mounting plates are connected with the telescopic part of the telescopic part.

4. A portal crane winding system as claimed in claim 3, characterized in that The two pulley mounting plates are provided with a first pin shaft between the end portions close to the telescopic part, and the telescopic part of the telescopic part is hinged with the first pin shaft.

5. A portal crane winding system as claimed in claim 4, characterized in that The end portion of the fixed part of the telescopic part is hinged with a second pin shaft, the second pin shaft is fixed on a fixed seat, and the fixed seat is used for fixing with the trolley of the gantry crane.

6. A portal crane winding system as claimed in claim 1, characterized in that The pulley is provided with a groove matched with the steel wire on the wheel surface, and the steel wire is embedded in the groove.

7. A portal crane winding system as claimed in claim 6, characterized in that The groove adopts an arc-shaped groove matched with the steel wire.

8. A portal crane winding system as claimed in claim 1, characterized in that The pulley is rotationally connected with the pulley support through the wheel shaft, the pulley support is connected with the telescopic part of the telescopic part, the two end portions of the wheel shaft extend into the guide groove of the guide seat, the guide groove is arranged along the direction of travel of the trolley of the gantry crane, and the guide seat is used for fixing with the trolley of the gantry crane.

9. A portal crane winding system as claimed in claim 1, characterized in that The telescopic part adopts a hydraulic oil cylinder with an axis arranged parallel to the direction of travel of the trolley of the gantry crane.

10. A portal crane, characterized in that The gantry crane winding system is provided.

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