Rope arranger of portal crane and crane

Abstract

Compared with the prior art, the rope guider of the portal crane and the crane disclosed by the utility model comprise a bracket main body, a rope guider and a rope guider, the threaded lead screw is rotationally mounted on the bracket main body; the guide rod assembly is mounted on the bracket main body; the threaded lead screw and the guide rod assembly are arranged in parallel. The transmission gear is arranged at one end of the threaded lead screw and used for being in meshing transmission with the winding drum gear ring. The first mounting seat and the second mounting seat are slidably mounted on the guide rod assembly; the first mounting seat is matched and connected with a left-hand thread structure of the threaded lead screw; the second mounting seat is matched and connected with a right-hand thread structure of the threaded lead screw; the first rope blocking roller assembly is arranged on the first mounting base and used for restraining the steel wire rope; according to the rope arranger of the portal crane, disclosed by the utility model, the steel wire rope can be effectively prevented from being separated from a groove and disordered due to inclined pulling, the service life of the steel wire rope is prolonged, and the use efficiency and the safety of the crane are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and more specifically, to a rope arrangement device for a gantry crane and a crane. Background Art

[0002] The rope guide is used in the operation of gantry crane. When the gantry crane performs section turning operation, the wire rope is pulled obliquely, and a rope guide is required to prevent the wire rope from falling out of the groove and becoming tangled.

[0003] In the prior art, patent CN 219259426 U discloses a rope guide for lifting equipment. In this solution, the wire rope passes through a fixed ring and is then wound around a guide pulley. The guide pulley is fixed on a guide rod and can move left and right along the axis of the drum. However, the above-mentioned prior art solution has the problem of unstable movement of the guide wheel on the guide rod. Since the fixed ring cannot move, when the drum is long and the wire rope is at both ends, the angle between the wire rope and the fixed ring is too large, which makes the wire rope wear more serious.

[0004] Therefore, how to provide a rope guide for a gantry crane that can effectively prevent the wire rope from slipping out of the groove and becoming tangled during oblique pulling, reduce the degree of damage to the wire rope, and extend the service life of the wire rope has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a rope arranger for a gantry crane, which can achieve good synchronization between the rope roller and the wire rope, solve the problems of rope slipping and rope tangling caused by oblique rope arrangement of double-outlet rope drums, reduce the degree of damage to the wire rope, and extend the service life of the wire rope. In addition, the utility model also provides a crane, which also has the above beneficial effects.

[0006] The utility model provides a rope arranger for a gantry crane, comprising: a bracket main body; a threaded screw rotatably mounted on the bracket main body; a guide rod assembly mounted on the bracket main body; the threaded screw and the guide rod assembly are arranged in parallel; a transmission gear is provided at one end of the threaded screw for meshing with the drum gear ring for transmission; one end of the threaded screw is a left-handed thread structure, and the other end is a right-handed thread structure; a first mounting seat and a second mounting seat are slidably mounted on the guide rod assembly; the first mounting seat is cooperated and connected with the left-handed thread structure of the threaded screw; the second mounting seat is cooperated and connected with the right-handed thread structure of the threaded screw; the transmission gear is used to drive the threaded screw to rotate and drive the first mounting seat and the second mounting seat to make relative reciprocating motion along the guide rod assembly; a first rope stop roller assembly is provided on the first mounting seat for constraining the wire rope; a second rope stop roller assembly is provided on the first mounting seat for constraining the wire rope.

[0007] Furthermore, in a preferred embodiment of the present invention, the bracket body includes: an intermediate bracket structure; a first bracket structure located on one side of the intermediate bracket structure; and a second bracket structure located on the other side of the intermediate bracket structure.

[0008] Furthermore, in a preferred embodiment of the present invention, the threaded screw is rotatably mounted on the bracket body in the following manner: the threaded screw is rotatably assembled and connected to the bracket body via an angular contact ball bearing.

[0009] Furthermore, in a preferred embodiment of the present invention, the first rope stop roller assembly includes: a first rope stop roller and a second rope stop roller provided on the first mounting seat; a gap structure for the wire rope to pass through is provided between the first rope stop roller and the second first rope stop roller.

[0010] Furthermore, in a preferred embodiment of the present invention, the second rope stop roller assembly includes: a third rope stop roller and a fourth rope stop roller provided on the second mounting seat; a gap structure for the wire rope to pass through is provided between the third rope stop roller and the fourth rope stop roller.

[0011] Furthermore, in a preferred embodiment of the present invention, it further comprises: an anti-collision limit switch group provided on the bracket body.

[0012] Furthermore, in a preferred embodiment of the present invention, the anti-collision limit switch group includes: a left limit switch and a right limit switch provided on the bracket body.

[0013] Furthermore, in a preferred embodiment of the present invention, the guide rod assembly includes: a first guide rod and a second guide rod provided on the bracket body; the first guide rod and the second guide rod are provided in parallel.

[0014] Furthermore, in a preferred embodiment of the present invention, the first rope-stopping roller assembly and the second rope-stopping roller assembly are both arranged perpendicular to the threaded screw.

[0015] In addition, the utility model also provides a crane, including the rope arrangement device of the gantry crane as described above, which also has the above-mentioned technical effects.

[0016] The cam is mounted on a pair of guide wheels, the guide wheels being mounted on said frame and the guide wheels being mounted on said frame. The second rope stop roller assembly for restraining the wire rope is on the first mounting seat. The rope guide of the gantry crane involved in the utility model is installed on the rope outlet side of the drum when in use, and is driven by the transmission gear and the large gear ring of the drum. When the drum reels in and releases the wire rope, the transmission gear drives the threaded screw to rotate and drive the two mounting seats to make reciprocating motion in opposite directions along the guide rod, and the wire rope remains between the two rope stop rollers. Compared with the existing technology, the rope guide of the gantry crane involved in the embodiment of the utility model has good synchronization with the wire rope, and two sets of rope stop roller groups are arranged on the left and right of the threaded screw, which can follow the relative movement of the two wire ropes, effectively avoiding the problems of wire rope derailment and rope tangling due to oblique pulling, reducing the damage to the wire rope, extending the service life of the wire rope, and improving the efficiency and safety of the crane. Compared with the existing technology, it has significant technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only 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.

[0018] Figure 1 A front view of a rope guide for a gantry crane provided by an embodiment of the utility model;

[0019] Figure 2 A top view of a rope guide for a gantry crane provided in an embodiment of the present utility model;

[0020] Figure 3 A left side view of a rope guide for a gantry crane provided in an embodiment of the present utility model;

[0021] Figure 4for Figure 2 A partial enlarged view of . DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the embodiments described are only 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 those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0023] It should be noted that when an element is referred to as being “fixed on” or “set on” another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0026] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by people familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in this utility model without affecting the efficacy and objectives that can be achieved by the present utility model.

[0027] like Figures 1 to 4As shown, the rope arranger of the gantry crane provided by the embodiment of the present utility model comprises: a bracket body 3; a threaded screw 5 rotatably mounted on the bracket body; a guide rod assembly 7 mounted on the bracket body; the threaded screw 5 and the guide rod assembly 7 are arranged in parallel; a transmission gear 2 is provided at one end of the threaded screw 5 for meshing with the drum gear ring 1 for transmission; one end of the threaded screw 5 is a left-handed thread structure, and the other end is a right-handed thread structure; a first mounting seat 801 and a second mounting seat 802 are slidably mounted on the guide rod assembly 7; the first mounting seat 801 is cooperated and connected with the left-handed thread structure of the threaded screw 5; the second mounting seat 802 is cooperated and connected with the right-handed thread structure of the threaded screw 5; the transmission gear 2 is used to drive the threaded screw 5 to rotate and drive the first mounting seat 801 and the second mounting seat 802 to make relative reciprocating motion along the guide rod assembly 7; it is provided on the first mounting seat 801 The first rope stop roller assembly 401 is used to constrain the wire rope; the second rope stop roller assembly 402 is provided on the first mounting seat 801 to constrain the wire rope. When in use, the rope guide is installed on the rope outlet side of the drum, and is driven by the transmission gear 2 and the large gear ring 1 of the drum to mesh with the transmission gear 2. When the drum reels in and releases the wire rope, the transmission gear 2 drives the threaded screw 5 to rotate and drive the two mounting seats 8 to reciprocate in opposite directions along the guide rod, and the wire rope is kept between the two rope stop rollers 4. Compared with the prior art, the rope guide of the gantry crane involved in the embodiment of the present invention has good synchronization with the wire rope, and two sets of rope stop roller groups are respectively provided on the left and right of the threaded screw 5, which can follow the relative movement of the two wire ropes, effectively avoiding the problems of de-grooving and tangled ropes caused by oblique pulling of the wire rope, reducing the damage to the wire rope, extending the service life of the wire rope, and improving the efficiency and safety of the crane. Compared with the prior art, it has significant technical effects.

[0028] Specifically, in a specific embodiment of the present invention, the support body includes 3: an intermediate support structure; a first support structure located on one side of the intermediate support structure; and a second support structure located on the other side of the intermediate support structure.

[0029] Specifically, in a specific embodiment of the present utility model, the threaded screw 5 is rotatably mounted on the bracket body in the following manner: the threaded screw 5 is rotatably assembled and connected to the bracket body 3 via an angular contact ball bearing 6 .

[0030] Specifically, in a specific embodiment of the present utility model, the first rope stop roller assembly 401 includes: a first rope stop roller and a second rope stop roller provided on the first mounting seat 801; a gap structure for the wire rope to pass through is provided between the first rope stop roller and the second first rope stop roller.

[0031] Specifically, in a specific embodiment of the present invention, the second rope stop roller assembly 402 includes: a third rope stop roller and a fourth rope stop roller provided on the second mounting seat 802; a gap structure for the wire rope to pass through is provided between the third rope stop roller and the fourth rope stop roller.

[0032] It should be noted that in the embodiment of the present utility model, two rope-blocking rollers perpendicular to the threaded screw 5 are installed on the first mounting seat 801 and the second mounting seat 802. The wire rope passes through the gap between the two rope-blocking rollers. A transmission gear 2 is installed on the left end of the threaded screw 5. During installation, the rope-laying device gear 2 directly meshes with the large gear ring 1 of the drum. When in use, the rope-laying device is installed on the rope outlet side of the drum, and is transmitted through the meshing transmission gear 2 and the large gear ring 1 of the drum. When the drum reels and releases the wire rope, the transmission gear 2 drives the threaded screw 5 to rotate and drive the two mounting seats to make reciprocating motion in opposite directions along the guide rod. The wire rope remains between the two rope-blocking rollers, and the rope-blocking roller group has good synchronization with the wire rope. Two sets of rope-blocking roller groups are arranged on the left and right of the threaded screw 5, which can move relative to the two wire ropes, effectively avoiding the problems of wire rope derailment and tangled ropes caused by oblique pulling, significantly reducing the degree of damage to the wire rope, and extending the service life of the wire rope.

[0033] Specifically, in a specific embodiment of the present utility model, it further includes: an anti-collision limit switch group 9 provided on the bracket body 3.

[0034] Specifically, in a specific embodiment of the present utility model, the anti-collision limit switch group includes: a left limit switch and a right limit switch provided on the bracket body 3 .

[0035] It should be noted that in the specific embodiment of the present invention, the bracket body 3 and the threaded screw 5 are rotated and assembled using angular contact ball bearings, which can withstand a larger axial load. The transmission gear 2 is engaged with the large gear ring of the reel, and the transmission accuracy is high. The bracket body 3 is provided with left and right limit switches of the mounting seat, which has a better anti-collision effect compared with the existing technology.

[0036] Specifically, in a specific embodiment of the present utility model, the guide rod assembly 7 includes: a first guide rod and a second guide rod provided on the bracket body 3; the first guide rod and the second guide rod are provided in parallel.

[0037] Specifically, in the specific embodiment of the present utility model, the first rope-stopping roller assembly 401 and the second rope-stopping roller assembly 402 are both arranged perpendicular to the threaded screw 5 .

[0038] In addition, an embodiment of the present invention also provides a crane, including the rope guide of the gantry crane as described above, which also has the above-mentioned technical effects.

[0039] More specifically, when a gantry crane performs a section turning operation, the wire rope is pulled diagonally, and a rope guide is required to prevent the wire rope from slipping out of the groove and becoming tangled. Conventional rope guides for lifting equipment, after the wire rope passes through a fixed ring, are wound around a guide pulley. The guide pulley is fixed to a guide rod and can move left and right along the axis of the drum. This leads to unstable movement of the guide wheel on the guide rod. Because the fixed ring cannot move, when the drum is long, the angle between the wire rope and the fixed ring is too large at both ends, causing more severe wear on the wire rope. Furthermore, this rope guide cannot be used on double-outlet rope drums and cannot withstand large axial loads.

[0040] Based on the above technical background, the technical solution involved in the embodiment of the utility model converts the power source into a drum through a transmission mechanism, so that the rope roller follows the wire rope with good synchronization. By arranging two sets of threads with different rotation directions on the screw rod, it can be used to solve the rope arrangement problem of the double-outlet rope drum, and at the same time meet the rope arrangement requirements of the double-outlet rope drum.

[0041] Specifically, the rope arranger of the gantry crane involved in the embodiment of the present utility model includes: a transmission gear 2, a bracket body 3, a rope stop roller 4, a threaded screw 5, an angular contact ball bearing 6, a guide rod assembly 7, a first mounting seat 801, a second mounting seat 802, and an anti-collision limit switch group 9, wherein the bracket body 3 is equipped with an anti-collision limit switch group, the threaded screw 5 and the guide rod assembly 7 are assembled parallel to each other between the bracket 3, the threaded screw 5 and the bracket body 3 are rotated and assembled using an angular contact ball bearing 6, the mounting seat 8 is threadedly matched with the threaded screw 5, and is slidingly matched with the guide rod 7, and the first mounting seat 801 and the second mounting seat 802 are equipped with two rope stop rollers perpendicular to the threaded screw 5 The wire rope passes through the gap between the two rope-stopping rollers, and a transmission gear 2 is installed on the left end of the threaded screw 5. When installed, the rope-moving device gear 2 directly meshes with the large gear ring 1 of the drum. When in use, the rope-moving device is installed on the rope-out side of the drum, and is transmitted through the meshing of gear 2 with the large gear ring 1 of the drum. When the drum reels in and releases the wire rope, the gear 2 drives the threaded screw 5 to rotate and drive the two mounting seats to make reciprocating motion in opposite directions along the guide rod. The wire rope remains between the two rope-stopping rollers, which effectively avoids the problems of the wire rope being out of the groove and tangled due to oblique pulling, reduces the damage to the wire rope, extends the service life of the wire rope, and improves the efficiency and safety of the crane. Compared with the existing technology, it has significant technical effects.

[0042] To sum up, compared with the prior art, the rope arranger of the gantry crane involved in the embodiment of the utility model adopts angular contact ball bearings for the rotation assembly of the bracket and the threaded screw, which can withstand a large axial load, and the gear is engaged with the large gear ring of the drum, with high transmission accuracy. The rope stop roller follows the wire rope with good synchronization and can withstand high torque. The bracket is provided with left and right extreme limit switches of the mounting seat to prevent collision. Two sets of rope stop rollers are provided on the left and right of the threaded screw, which can move relative to the two wire ropes, effectively avoiding the oblique pulling of the wire rope and the occurrence of rope tangling, reducing the damage problem of the wire rope, extending the service life of the wire rope, and improving the efficiency and safety of the crane.

[0043] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rope guide for a gantry crane, characterized in that: include: a bracket body (3); Rotating a threaded screw (5) mounted on the bracket body; A guide rod assembly (7) mounted on the bracket body; The threaded screw (5) and the guide rod assembly (7) are arranged in parallel; A transmission gear (2) provided at one end of the threaded screw (5) and used for meshing with the drum gear ring (1) for transmission; One end of the threaded screw (5) is a left-handed thread structure, and the other end is a right-handed thread structure; A first mounting seat (801) and a second mounting seat (802) slidably mounted on the guide rod assembly (7); The first mounting seat (801) is connected in cooperation with the left-handed thread structure of the threaded screw (5); the second mounting seat (802) is connected in cooperation with the right-handed thread structure of the threaded screw (5); The transmission gear (2) is used to drive the threaded screw (5) to rotate and drive the first mounting seat (801) and the second mounting seat (802) to perform relative reciprocating motion along the guide rod assembly (7); A first rope-stopping roller assembly (401) provided on the first mounting seat (801) and used for restraining the steel wire rope; A second rope-stopping roller assembly (402) is provided on the first mounting seat (801) and is used to constrain the steel wire rope.

2. The rope guide of a gantry crane according to claim 1, characterized in that: The support body includes (3): an intermediate support structure; a first support structure located on one side of the intermediate support structure; and a second support structure located on the other side of the intermediate support structure.

3. The rope guide of the gantry crane according to claim 2, characterized in that: The threaded screw (5) is rotatably mounted on the bracket body, specifically: the threaded screw (5) is rotatably assembled and connected to the bracket body (3) via an angular contact ball bearing (6).

4. The rope guide of the gantry crane according to claim 3, characterized in that: The first rope-stopping roller assembly (401) comprises: a first rope-stopping roller and a second rope-stopping roller arranged on the first mounting seat (801); a gap structure for the wire rope to pass through is provided between the first rope-stopping roller and the second first rope-stopping roller.

5. The rope guide of the gantry crane according to claim 4, characterized in that: The second rope-blocking roller assembly (402) comprises: a third rope-blocking roller and a fourth rope-blocking roller arranged on the second mounting seat (802); a gap structure for the wire rope to pass through is provided between the third rope-blocking roller and the fourth rope-blocking roller.

6. The rope guide for a gantry crane according to claim 1, characterized in that: Also includes: An anti-collision limit switch group (9) is provided on the bracket body (3).

7. The rope guide of a gantry crane according to claim 6, characterized in that: The anti-collision limit switch group comprises a left limit switch and a right limit switch which are arranged on the bracket body (3).

8. The rope guide for a gantry crane according to claim 1, characterized in that: The guide rod assembly (7) comprises: a first guide rod and a second guide rod provided on the bracket body (3); the first guide rod and the second guide rod are provided in parallel.

9. The rope guide for a gantry crane according to any one of claims 1 to 8, characterized in that: The first rope-stopping roller assembly (401) and the second rope-stopping roller assembly (402) are both arranged perpendicular to the threaded lead screw (5).

10. A crane, characterized in that: A rope guide for a gantry crane comprising the device described in any one of claims 1 to 9.

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