CN108046142B - Steel wire rope guiding device and mast crane - Google Patents
Steel wire rope guiding device and mast crane Download PDFInfo
- Publication number
- CN108046142B CN108046142B CN201810049382.5A CN201810049382A CN108046142B CN 108046142 B CN108046142 B CN 108046142B CN 201810049382 A CN201810049382 A CN 201810049382A CN 108046142 B CN108046142 B CN 108046142B
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- China
- Prior art keywords
- steel wire
- wire rope
- rope guiding
- rope
- pulley block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to a steel wire rope guiding device and a mast crane, wherein the steel wire rope guiding device comprises: a support part; the rotating part is arranged on the supporting part, a plurality of rope guiding holes which are arranged at intervals and used for the steel wire rope to pass through are formed in the rotating part, each rope guiding hole penetrates through the rotating part, the rotating part can rotate relative to the supporting part, and the rotation center line of the rotating part is parallel to the penetrating direction of the rope guiding holes. By using the steel wire rope guiding device, the steel wire ropes are not mutually wound and interfered, and are prevented from being twisted and wound together.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to a steel wire rope guiding device and a mast crane.
Background
The traditional crane can not meet the special working condition requirements in the field of ocean development in many aspects, and in view of the unique advantages of the mast crane, more and more domestic and foreign customers begin to select the mast crane, and particularly, the application of the mast crane to oil platforms and pipe-laying vessels is well reflected, so that the mast crane has a very broad prospect.
For example, chinese patent (application number: CN 201320385417.5) discloses a mast crane comprising: the gyration base, mast, davit, jack-up hoist engine, become amplitude hoist engine, the gyration base includes: a chassis; the rotary gear ring is fixed on the underframe; the rotary bearing consists of a bearing inner ring and a bearing outer ring, wherein the bearing inner ring is fixed on the underframe and is coaxial with the rotary gear ring; the power device comprises a motor and a gear, the motor is directly or indirectly fixed on the outer ring of the bearing, and the gear is fixed on a rotor shaft of the motor and meshed with the rotary gear ring; the bearing outer ring is provided with a revolving frame for connecting the mast and the suspension arm, the revolving frame is provided with a supporting table, and the amplitude-variable winch is arranged on the supporting table; the mast and the suspension arm are formed by splicing the holding rod joints, a fixed table is arranged in the bottom joint of the mast, and the hoisting winch is arranged on the fixed table.
Chinese patent (application number: CN 201420438237.3) discloses a movable mast crane, comprising a mast crane main body composed of a boom, a tripod, a base, a hoist and an electrical system, a base foundation, a weight and an oil cylinder, wherein a slide rail is laid on the base foundation, a slide slot matched with the slide rail is arranged at the bottom of the base, and the base is placed on the slide rail; the pressing reconfiguration is arranged at the rear part of the base; one end of the oil cylinder is fixed on the base, and the other end of the oil cylinder is connected with the base; the telescopic arm of the oil cylinder is parallel to the direction of the sliding rail on the base, and the oil cylinder drives the base to move so as to drive the crane main body to slide along the sliding rail.
The steel wire rope group in the mast type crane can generate a winding confusion phenomenon when the crane rotates.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a wire rope guide including: a support part; the rotating part is arranged on the supporting part, a plurality of rope guiding holes which are arranged at intervals and used for the steel wire rope to pass through are formed in the rotating part, each rope guiding hole penetrates through the rotating part, the rotating part can rotate relative to the supporting part, and the rotation center line of the rotating part is parallel to the penetrating direction of the rope guiding holes.
Further, the guide rope hole includes: the first rope guide hole group of symmetry setting, the second rope guide hole group of symmetry setting, the third rope guide hole group of symmetry setting.
Further, the symmetry center lines of the first rope guiding hole group, the second rope guiding hole group and the third rope guiding hole group are the same.
Further, the at least one rope guide aperture comprises at least one inner surface capable of being rotatably connected with the wire rope.
Further, the rope guide hole is at least partially formed by a roller.
Further, the rope guiding hole is formed by encircling four rollers which are distributed at intervals along the circumferential direction, wherein two rollers are oppositely arranged, the other two rollers are oppositely arranged, the outer surfaces of the adjacent rollers encircle the inner surface of the rope guiding hole, and the outer surfaces of the rollers can be rotatably connected with the steel wire rope.
Further, the support portion has a receiving portion, and the rotating portion is provided at the receiving portion.
Further, the rotating part is circular, the accommodating part is circular, at least one first roller is arranged on the outer circumferential surface of the rotating part, the first roller is in rolling connection with the accommodating part along the radial direction, and the radial direction is perpendicular to the rotation center line of the rotating part.
Further, along the axial direction, the part of the rotating part facing the accommodating part is provided with at least one second roller, the second roller is in rolling connection with the accommodating part along the axial direction, and the axial direction is parallel to the rotation center line of the rotating part.
Further, the second rollers are multiple and are arranged at intervals along the same circumference.
Further, the device further comprises a cover plate, wherein the cover plate is arranged on the rotating part and connected with the supporting part, and is used for limiting the movement of the rotating part in the axial direction.
Further, along the axial direction, the second roller is respectively in rolling connection with the cover plate and the accommodating part.
The invention also provides a mast crane, which comprises the steel wire rope guiding device.
Further, the method comprises the steps of: the general column is provided with a pulley block at the top and a winch at the bottom along the vertical direction, and the winch is connected with the pulley block through a plurality of steel wire ropes;
the steel wire rope guiding device is arranged on the general column and is positioned between the winch and the pulley block, the supporting part of the steel wire rope guiding device is fixedly connected with the general column, the steel wire ropes are in one-to-one correspondence with the rope guiding holes, and each steel wire rope is connected with the pulley block after passing through the corresponding rope guiding hole.
Further, the number of the steel wire rope guiding devices is at least two, and the steel wire rope guiding devices are arranged at intervals along the vertical direction.
Further, the method further comprises the following steps: one end of the arm support is connected with the general column, and the other end of the arm support is connected with the pulley block through the steel wire rope;
wherein one end of the arm support is rotatably connected with the general column in the vertical cross section and the horizontal cross section of the general column;
when the arm support rotates in the horizontal cross section for a set angle, a plurality of steel wire ropes penetrating through the steel wire rope guiding device are not mutually entangled and interfered.
Further, the number of the steel wire rope guiding devices is two, the steel wire rope guiding devices are arranged between the pulley block and one end of the arm support at intervals along the vertical direction, and the part from the pulley block of the general column to one end of the arm support is equally divided into three parts by the two steel wire rope guiding devices.
Further, when the arm support rotates by plus or minus 220 degrees in the horizontal cross section, a plurality of steel wire ropes penetrating through the steel wire rope guiding device are not mutually entangled and interfered.
Further, the plurality of steel wires between the pulley block and the steel wire rope guiding device close to the pulley block are not mutually entangled and interfered when the steel wire ropes revolve for plus or minus 70 degrees in the horizontal cross section;
the plurality of steel wires between the two steel wire rope guiding devices are not mutually entangled and interfered when rotating for plus or minus 70 degrees in the horizontal cross section;
the plurality of steel wires between the winch and the steel wire rope guiding device close to the winch are not mutually entangled and interfered when the steel wire ropes revolve by plus or minus 80 degrees in the horizontal cross section.
Further, the winch comprises: the first luffing steel wire rope and the second luffing steel wire rope are respectively connected with the luffing winch, the pulley block and the other end of the arm support in sequence and respectively penetrate through first rope guide hole groups symmetrically arranged in the steel wire rope guide device;
the first main hook steel wire rope and the second main hook steel wire rope are respectively connected with the main hook winch, the pulley block and the other end of the arm support in sequence and respectively penetrate through second rope guide hole groups symmetrically arranged in the steel wire rope guide device;
the first auxiliary hook steel wire rope and the second auxiliary hook steel wire rope are respectively connected with the auxiliary hook winch, the pulley block and the other end of the arm support in sequence and respectively penetrate through third rope guide hole groups symmetrically arranged in the steel wire rope guide device.
As described above, the wire rope guiding device provided by the invention is applied to the mast crane, the supporting part is arranged on the supporting part of the mast crane, and after the wire rope on the mast crane passes through the wire rope guiding hole of the wire rope guiding device, when the arm support makes rotary motion, the wire rope can drive the rotating part to rotate around the vertical direction relative to the supporting part, and the wire ropes are separated by the wire rope guiding holes and do not mutually winding interference, so that twisting and winding are avoided.
In order that the above-recited features of the present invention can be understood in detail, a preferred embodiment of the invention is illustrated in the accompanying drawings.
Drawings
FIG. 1 is a side view of a mast crane according to an embodiment of the invention;
FIG. 2 is a side view of a wire rope guide of an embodiment of the present invention;
FIG. 3 is a top view of a wire rope guide according to an embodiment of the present invention;
FIG. 4 is an enlarged view of portion C of FIG. 3;
FIG. 5 is an enlarged view of portion A of FIG. 2;
fig. 6 is an enlarged view of a portion B in fig. 2.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present invention with specific examples. While the description of the invention will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the invention described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the invention. The following description contains many specific details for the purpose of providing a thorough understanding of the present invention. The invention may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the invention.
Referring to fig. 1 and 2, the present invention provides a wire rope guide 1, the wire rope guide 1 including a support portion 10 and a rotation portion 20, the wire rope guide 1 being mounted on a mast crane 2 through the support portion 10. Wherein the mast crane 2 comprises: a general column 3 arranged along the vertical direction (shown in the M direction in fig. 1), wherein a pulley block 7 is arranged at the top of the general column 3 along the vertical direction, a winch 4 is arranged at the bottom of the general column, and the winch 4 is connected with the pulley block 7 through a plurality of steel wire ropes 6; the mast crane 2 further comprises: the arm support 5, one end of the arm support 5 is connected with the general column 3, and the other end is connected with the pulley block 7 through the steel wire rope 6; one end of the boom 5 is rotatably connected to the general column 3 in a vertical cross section and in a horizontal cross section of the general column 3.
The vertical cross section is a cross section of the general column 3 in the vertical direction, and the horizontal cross section is a cross section of the general column 3 in the horizontal direction (indicated by the N direction in fig. 1). That is, the boom 5 can be rotated in the vertical direction, and at the same time, the boom 5 can be rotated in the horizontal direction. The "vertical direction" may be a strict vertical direction or a direction offset by a certain angle in the vertical direction, and the "horizontal direction" may be a strict horizontal direction or a direction offset by a certain angle in the horizontal direction.
In this embodiment, the rotating portion 20 of the wire rope guiding device 1 is disposed on the supporting portion 10, referring to fig. 3 and 4, the rotating portion 20 is provided with a plurality of rope guiding holes 20a for passing the wire rope 6 on the general post 3, each rope guiding hole 20a penetrates the rotating portion 20. In this embodiment, the wire rope guiding device 1 is provided between the winch 4 and the pulley block 7, and the penetrating direction of the rope guiding hole 20a is vertical. The supporting part 10 of the steel wire rope guiding device 1 is fixedly connected with the general column 3, the steel wires 6 are in one-to-one correspondence with the rope guiding holes 20a, and each steel wire rope 6 passes through the corresponding rope guiding hole 20a and then is connected with the pulley block 7.
When the arm support 5 rotates in the vertical direction, the steel wire rope 6 moves in the rope guide hole 20a along the vertical direction, and the steel wire rope and the arm support do not interfere with each other; when the arm support 5 rotates in the horizontal direction, that is, when the arm support 5 rotates, the steel wire rope 6 rotates around the vertical direction, and the steel wire rope 6 is likely to twist. Since the wire rope guide 1 is provided on the general post 3 in this embodiment, the rotation portion 20 of the wire rope guide 1 can rotate relative to the support portion 10, and the rotation center line (shown by X in fig. 2) of the rotation portion 20 is parallel to the penetrating direction (shown by Z in fig. 2) of the wire rope guide hole 20 a. That is, the rotation center line of the rotation portion 20 is parallel to the vertical direction. After the design, when the steel wire ropes 6 rotate around the vertical direction, each steel wire rope 6 passes through one rope guiding hole 20a and drives the rotating part 20 to rotate around the vertical direction relative to the supporting part 10, and the steel wire ropes 6 are separated by the rope guiding holes 20a and are not mutually wound and interfered, so that the steel wire ropes are prevented from being twisted and wound together.
The wire rope guide 1 of the present invention is not limited to the use in the mast crane 2, and the wire rope guide 1 of the present invention may be used when wires are wound around each other in other fields.
In addition, the number of the rope guide holes 20a is not limited, and may be set correspondingly according to the number of the wire ropes 6. Referring to fig. 3 and 4, in the present embodiment, the rope guide hole 20a includes: a first set of symmetrically disposed rope holes 28, a second set of symmetrically disposed rope holes 21, and a third set of symmetrically disposed rope holes 29. The mutual positional relationship of the rope guide hole groups is not limited as long as the corresponding steel wire ropes can pass through.
In this embodiment, referring to fig. 3, the symmetry center lines (shown in L in fig. 3) of the first rope guide hole group 28, the second rope guide hole group 21, and the third rope guide hole group 29 are the same. By such a design, the rotation part 20 can smoothly rotate synchronously with the wire rope 6 when the wire rope 6 passing through each wire rope hole 20a rotates around the vertical direction.
With continued reference to fig. 3 and 4, at least one of the rope guide openings 20a of the present invention includes at least one inner surface capable of rotatably coupling with the wire rope 6. Wherein the rope guide hole 20a is at least partially formed by a roller. After the rope guiding hole 20a is at least partially formed by the roller, the contact between the steel wire rope 6 and the rope guiding hole 20a after passing through the rope guiding hole 20a is at least partially rolling friction, so that the steel wire rope 6 is not damaged, and meanwhile, the steel wire rope 6 can smoothly move in the rope guiding hole 20 a.
Referring to fig. 4, in this embodiment, the rope guiding holes 20a in each rope guiding hole group are formed by four rollers distributed at intervals along the circumferential direction, two rollers 21a are disposed opposite to each other, the other two rollers 21b are disposed opposite to each other, the outer surfaces of the adjacent rollers form the inner surfaces of the rope guiding holes 20a, and the inner surfaces of the rope guiding holes 20a are circular in cross section. The outer surface of the roller can be rotatably connected with the wire rope 6. By such a design, the contact portions of the wire rope 6 and the rope guide hole 20a are both rolling friction, and can move in the rope guide hole 20a more smoothly. In other embodiments, the cord guide hole 20a may be formed by one roller or by another number of rollers. In addition, in the embodiment, the rope guiding holes in each rope guiding hole group are surrounded by four rollers which are distributed at intervals along the circumferential direction; in other embodiments, the rope guiding holes in part of the rope guiding hole group are surrounded by four rollers which are distributed at intervals along the circumferential direction, and the rope guiding holes in part of the rope guiding hole group are formed by the rollers.
With continued reference to fig. 2 and 3, the support portion 10 of the present invention has a housing portion 11, and the rotating portion 20 is provided in the housing portion 11. The shape of the rotating portion 20 and the shape of the housing portion 11 are not limited, as long as the rotating portion 20 is provided in the housing portion 11 and is rotatable with respect to the supporting portion 10. The shape of the support portion 10 is not limited as long as it can be fixedly connected to the general post 3. In this embodiment, the rotating part 20 is in a circular shape, the supporting part 10 is in a circular shape, and the accommodating part 11 is in a circular shape; that is, the cross section of the rotating portion 20 is circular, the cross section of the supporting portion 10 is circular, and the cross section of the accommodating portion 11 is circular. The weight reducing hole 20b is provided in the center of the rotating portion 20, and weight reduction of the rotating portion 20 is achieved.
Referring to fig. 3 to 5, the outer circumferential surface of the rotating part 20 of the present invention is provided with at least one first roller 23, and in this embodiment, the outer circumferential surface of the rotating part 20 is provided with a plurality of first rollers 23, six first rollers 23 are shown in fig. 3, and in other embodiments, other numbers of first rollers may be provided. Each of the first rollers 23 is in rolling connection with the accommodating portion 11 in a radial direction (shown in Y direction in fig. 2 and 4), as shown in fig. 2, which is perpendicular to the rotation center line of the rotating portion 20. After such arrangement, the contact between the rotating part 20 and the accommodating part 11 in the radial direction is rolling friction, which is beneficial for the rotating part 20 to rotate around the rotation center line relative to the supporting part 10.
Referring to fig. 5, in the present embodiment, the outer peripheral surface of the rotating portion 20 has symmetrically disposed first clamping portions 22, and the first roller 23 is disposed between the two first clamping portions 22 and is rotatably connected to the first clamping portions 22 by the shaft 50.
With continued reference to fig. 2, 3 and 6, in the axial direction (shown in the Z-direction in fig. 2 and 6), the portion of the rotating portion 20 facing the accommodating portion 11 is provided with at least one second roller 24, and in this embodiment, the portion of the rotating portion 20 facing the accommodating portion 11 is provided with a plurality of second rollers 24, eight second rollers 24 being shown in fig. 3, and in other embodiments, other numbers of second rollers may be provided. The second roller 24 is in rolling connection with the housing 11 in an axial direction, which is parallel to the rotation center line of the rotating portion 20 as shown in fig. 2. After such arrangement, the contact between the rotating portion 20 and the accommodating portion 11 in the axial direction is rolling friction, which facilitates the rotation of the rotating portion 20 relative to the supporting portion 10 about the rotation center line.
In this embodiment, the second rollers 24 are plural and are arranged at intervals along the same circumference, so that the rotating portion 20 is stably connected with the accommodating portion 11 in a rolling manner through the second rollers 24, and the rotating portion 20 is facilitated to rotate around the rotation center line relative to the supporting portion 10.
With continued reference to fig. 2 and in combination with fig. 5 and 6, the wire rope guide 1 further includes a cover plate 30 disposed over the rotating portion 20 and connected to the supporting portion 10 for restricting movement of the rotating portion 20 in the axial direction (Z direction shown in fig. 2 and 6) while allowing the rotating portion 20 to be restricted to a rotational movement within the accommodating portion 11 of the supporting portion 10, i.e., to rotate relative to the supporting portion 10 about a rotation center line. The connection manner of the support portion 10 and the cover plate 30 is not limited, as long as the rotation portion 20 can be restrained from moving in the axial direction after the connection; the support portion 10 and the cover plate 30 are connected by bolts 40 in this embodiment.
Referring to fig. 6, in the present embodiment, a through hole penetrating the rotating portion 20 along the axial direction is provided on the rotating portion 20, a portion of the rotating portion 20 facing the cover plate 30 is provided with second clamping portions 25 symmetrically arranged, and the second roller 24 is disposed between the two second clamping portions 25 and is rotatably connected with the second clamping portions 25 through a shaft 60. Meanwhile, in the axial direction (shown in the Z direction in fig. 6), the second roller 24 passes through the through-hole to be respectively in rolling connection with the cover plate 30 and the receiving portion 11. The rotating part 20 is in rolling connection with the cover plate 30 and the accommodating part 11 respectively in the axial direction through the second roller 24, so that the rotating part 20 can rotate around the rotation center line relative to the supporting part 10.
With continued reference to fig. 1, the present invention also provides a mast crane 2, comprising a wire rope guiding device 1 according to any of the embodiments described above. The mast crane 2 includes: the general column 3 is provided with a pulley block 7 at the top and a winch 4 at the bottom along the vertical direction (shown as the M direction in fig. 1), and the winch 4 is connected with the pulley block 7 through a plurality of steel wire ropes 6. The steel wire rope guiding device 1 is arranged on the general column 3 and is arranged between the winch 4 and the pulley block 7, the supporting part 10 of the steel wire rope guiding device 1 is fixedly connected with the general column 3, the steel wires 6 are in one-to-one correspondence with the rope guiding holes 20a, and each steel wire rope 6 passes through the corresponding rope guiding hole 20a and then is connected with the pulley block 7. The mast crane 2 further comprises: the arm support 5, one end of the arm support 5 is connected with the general column 3, and the other end is connected with the pulley block 7 through the steel wire rope 6; one end of the boom 5 is rotatably connected to the general column 3 in a vertical cross section and in a horizontal cross section of the general column 3. When the arm support 5 rotates in the horizontal cross section for a set angle, a plurality of steel wire ropes 6 passing through the steel wire rope guiding device 1 are not mutually entangled and interfered.
The number of the steel wire rope guiding devices 1 on the mast crane 2 is at least two, and the steel wire rope guiding devices are arranged at intervals along the vertical direction. Other numbers of wire rope guide 1 may be chosen in other embodiments. In this embodiment, the mast crane 2 is a 1600T mast crane. The number of the steel wire rope guide devices 1 is two, the steel wire rope guide devices are arranged between the pulley block 7 of the general column 3 and one end of the arm support 5 connected with the general column 3 at intervals along the vertical direction, and the parts from the pulley block 7 connected with the general column 3 to one end of the arm support 5 connected with the general column 3 are evenly divided into three parts by the two steel wire rope guide devices 1. So that when the arm support 5 rotates by plus or minus 220 degrees in the horizontal cross section, a plurality of steel wire ropes 6 passing through the steel wire rope guiding device 1 do not mutually wind and interfere.
Wherein, the plurality of steel wires 6 between the pulley block 7 and the steel wire rope guiding device 1 close to the pulley block 7 are not mutually entangled and interfered when rotating for plus or minus 70 degrees in the horizontal cross section; the plurality of steel wires 6 between the two steel wire rope guiding devices 1 are not mutually entangled and interfered when rotating for plus or minus 70 degrees in the horizontal cross section; the plurality of steel wires 6 between the winch 4 and the steel wire rope guiding device 1 close to the winch 4 do not mutually intertwine and interfere when rotating by plus or minus 80 degrees in the horizontal cross section. Namely, by arranging two steel wire rope guide devices 1 on the general column 3, when the arm support 5 rotates by plus or minus 220 degrees in the horizontal cross section, the steel wire ropes 6 are not mutually wound and interfered, and are prevented from being twisted and wound together.
Specifically, in the present embodiment, the winch 4 includes: the luffing winch, the first luffing steel wire rope and the second luffing steel wire rope are respectively connected with the luffing winch, the pulley block 7 and the other end of the arm support 5 in sequence and respectively penetrate through first rope guide hole groups 28 symmetrically arranged in the steel wire rope guide device 1; the main hook winch, the first main hook steel wire rope and the second main hook steel wire rope are respectively connected with the main hook winch, the pulley block 7 and the other end of the arm support 5 in sequence, and respectively penetrate through second rope guide hole groups 21 symmetrically arranged in the steel wire rope guide device 1; the auxiliary hook winch, the first auxiliary hook wire rope and the second auxiliary hook wire rope are respectively connected with the auxiliary hook winch, the pulley block 7 and the other end of the arm support 5 in sequence, and respectively penetrate through third rope guide hole groups 29 symmetrically arranged in the wire rope guide device 1.
In this embodiment, the two main hook wire ropes, the two auxiliary hook wire ropes and the two amplitude-variable wire ropes on the mast crane 2 do not generate the phenomenon of intertwining confusion and mutual interference when the boom 5 rotates, and the mast crane 2 can work normally.
It should be noted that the number of winches 4 is not limited, the number of wire ropes 6 is not limited, and the rotation angle of the arm support 5 is not limited. The steel wire rope guiding device 1 can be selected and used according to the number of winches 4, the number of steel wire ropes 6 and the rotation angle of the arm support 5, and only the phenomenon that the steel wire ropes 6 are intertwined and disordered and interfere with each other when the arm support 5 rotates can be guaranteed.
In summary, the above embodiments are provided to illustrate the principles of the present invention and its efficacy, but not to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. The mast crane is characterized by comprising a steel wire rope guiding device and a general column; the steel wire rope guiding device comprises a supporting part and a rotating part; the rotating part is arranged on the supporting part, a plurality of rope guiding holes which are arranged at intervals and used for the steel wire rope to pass through are arranged on the rotating part, each rope guiding hole penetrates through the rotating part, the rotating part can rotate relative to the supporting part, and the rotation center line of the rotating part is parallel to the penetrating direction of the rope guiding holes;
the rope guiding holes comprise first rope guiding hole groups which are symmetrically arranged, second rope guiding hole groups which are symmetrically arranged and third rope guiding hole groups which are symmetrically arranged;
the symmetrical center lines of the first rope guide hole group, the second rope guide hole group and the third rope guide hole group are the same;
the at least one rope guiding hole comprises at least one inner surface capable of being rotatably connected with the steel wire rope;
the rope guide hole is at least partially formed by a roller;
the rope guiding holes are formed by encircling four rollers which are distributed at intervals along the circumferential direction, wherein two rollers are oppositely arranged, the other two rollers are oppositely arranged, the outer surfaces of the adjacent rollers encircle the inner surfaces of the rope guiding holes, and the outer surfaces of the rollers can be rotatably connected with the steel wire rope;
the supporting part is provided with a containing part, and the rotating part is arranged on the containing part;
the rotary part is circular, the accommodating part is circular, the outer circumferential surface of the rotary part is provided with at least one first roller, the first roller is in rolling connection with the accommodating part along the radial direction, and the radial direction is perpendicular to the rotation center line of the rotary part;
at least one second roller is arranged at the part of the rotating part facing the accommodating part along the axial direction, the second roller is in rolling connection with the accommodating part along the axial direction, and the axial direction is parallel to the rotation center line of the rotating part;
along the vertical direction, a pulley block is arranged at the top of the general column, a winch is arranged at the bottom of the general column, and the winch is connected with the pulley block through a plurality of steel wire ropes;
the steel wire rope guiding device is arranged on the general column and is positioned between the winch and the pulley block, the supporting part of the steel wire rope guiding device is fixedly connected with the general column, the steel wire ropes are in one-to-one correspondence with the rope guiding holes, and each steel wire rope is connected with the pulley block after passing through the corresponding rope guiding hole.
2. A mast crane according to claim 1, wherein the second rollers are plural and are arranged at intervals in the same circumferential direction.
3. A mast crane according to claim 1, further comprising a cover plate disposed over the rotating portion and coupled to the support portion for limiting movement of the rotating portion in the axial direction.
4. A mast crane according to claim 3, wherein the second roller is in rolling connection with the cover plate and the receiving portion, respectively, in the axial direction.
5. A mast crane according to claim 1, wherein there are at least two wire rope guides spaced apart in the vertical direction.
6. A mast crane according to claim 5, further comprising:
one end of the arm support is connected with the general column, and the other end of the arm support is connected with the pulley block through the steel wire rope;
wherein one end of the arm support is rotatably connected with the general column in the vertical cross section and the horizontal cross section of the general column;
when the arm support rotates in the horizontal cross section for a set angle, a plurality of steel wire ropes penetrating through the steel wire rope guiding device are not mutually entangled and interfered.
7. A mast crane according to claim 6, wherein the number of the wire rope guide is two, and the wire rope guide is arranged between the pulley block and one end of the arm frame at intervals along the vertical direction, and the part from the pulley block of the general column to one end of the arm frame is equally divided into three parts by the two wire rope guides.
8. A mast crane according to claim 7, wherein the plurality of wire ropes passing through the wire rope guide do not intertwine and interfere when the boom is rotated by plus or minus 220 degrees in the horizontal cross section.
9. A mast crane according to claim 8, wherein the plurality of wire ropes between the pulley block and the wire rope guide adjacent the pulley block do not intertwine and interfere when rotated by plus or minus 70 degrees in the horizontal cross section;
the plurality of steel wires between the two steel wire rope guiding devices are not mutually entangled and interfered when rotating for plus or minus 70 degrees in the horizontal cross section;
the plurality of steel wires between the winch and the steel wire rope guiding device close to the winch are not mutually entangled and interfered when the steel wire ropes revolve by plus or minus 80 degrees in the horizontal cross section.
10. A mast crane according to claim 6, wherein the winch comprises:
the first luffing steel wire rope and the second luffing steel wire rope are respectively connected with the luffing winch, the pulley block and the other end of the arm support in sequence and respectively penetrate through first rope guide hole groups symmetrically arranged in the steel wire rope guide device;
the first main hook steel wire rope and the second main hook steel wire rope are respectively connected with the main hook winch, the pulley block and the other end of the arm support in sequence and respectively penetrate through second rope guide hole groups symmetrically arranged in the steel wire rope guide device;
the first auxiliary hook steel wire rope and the second auxiliary hook steel wire rope are respectively connected with the auxiliary hook winch, the pulley block and the other end of the arm support in sequence and respectively penetrate through third rope guide hole groups symmetrically arranged in the steel wire rope guide device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810049382.5A CN108046142B (en) | 2018-01-18 | 2018-01-18 | Steel wire rope guiding device and mast crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810049382.5A CN108046142B (en) | 2018-01-18 | 2018-01-18 | Steel wire rope guiding device and mast crane |
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| CN108046142A CN108046142A (en) | 2018-05-18 |
| CN108046142B true CN108046142B (en) | 2023-09-26 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108046142A (en) | 2018-05-18 |
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