CN111173055A - Excavator steel wire rope winding device and winding method - Google Patents
Excavator steel wire rope winding device and winding method Download PDFInfo
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- CN111173055A CN111173055A CN201911414819.1A CN201911414819A CN111173055A CN 111173055 A CN111173055 A CN 111173055A CN 201911414819 A CN201911414819 A CN 201911414819A CN 111173055 A CN111173055 A CN 111173055A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
- E02F3/52—Cableway excavators
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
- E02F3/58—Component parts
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- Earth Drilling (AREA)
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Abstract
The invention discloses a steel wire rope winding device and a steel wire rope winding method for an excavator. The device comprises a lifting beam and a top pulley; the lifting beam comprises a body, semicircular rope grooves and limit stops, the lower portion of the body is hinged to the upper portion of the bucket, the upper portion of the body is of a square vertical plate structure which is provided with two parallel vertical plates and is provided with an opening at the upper end, the two sides of each vertical plate are respectively fixed with one semicircular rope groove, one side of each semicircular rope groove is fixed with the corresponding vertical plate, the other side of each semicircular rope groove is open, and the limit stops are detachably fixed on the peripheries of the semicircular rope; the top pulley is installed in the jib loading boom upper end, is provided with a plurality of grooving on the pulley of top, and wire rope connects the handle around the grooving respectively. The winding device and the winding method can use four steel wire ropes to wind the lifting beam to connect the bucket, and reduce the diameter of a single steel wire rope under the condition of ensuring the overall bearing capacity of the steel wire rope, thereby increasing the ratio of the diameter of the top pulley to the diameter of the steel wire rope and prolonging the service life of the steel wire rope; the additional torsional force of the tensile force of the steel wire rope on the bucket can be eliminated.
Description
Technical Field
The invention relates to the technical field of mining excavators, in particular to an excavator steel wire rope winding device and a winding method.
Background
Fig. 1 is a prior art mechanical front shovel type mining excavator, as shown in fig. 1, the prior art mechanical front shovel type mining excavator includes a bucket rod, a bucket handle, a top pulley and a bucket, the front portion of the bucket rod is hinged with the rear portion of the bucket, the lower portion of the bucket handle is provided with two ear holes, the bucket handle is hinged above the bucket through the two ear holes, two sides of the upper portion of the bucket handle are respectively provided with a rope winding portion, and two steel wire ropes from the top pulley respectively wind the rope winding portions to connect the bucket handle, so as to connect the bucket; because the diameter of the steel wire rope is large, one side surface of the rope winding part on the bucket lifting beam is opened for convenient replacement, so that the steel wire rope is conveniently put in; meanwhile, in order to prevent the steel wire rope in the rope winding part from falling off, a plurality of stop blocks are arranged on the outer side of the outer diameter of the rope winding part so as to limit the steel wire rope in the rope winding part by using the stop blocks; when the excavator works, the pushing and lifting actions of the bucket are realized through the back-and-forth movement of the bucket rod and the up-and-down movement of the steel wire rope.
Because one side of a rope winding part on the bucket lifting beam is required to be opened, only two steel wire ropes can be arranged on the existing bucket lifting beam; in order to ensure that the steel wire rope has enough bearing capacity, the total diameter of the steel wire rope used for connecting the bucket is required to meet certain requirements, and the diameter of a single steel wire rope is larger because only two steel wire ropes can be arranged on the existing bucket lifting beam.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a steel wire rope winding device and a steel wire rope winding method for an excavator.
Therefore, the invention discloses a steel wire rope winding device of an excavator, which comprises a lifting beam and a top pulley;
the lifting beam comprises a body, semicircular rope grooves and a limit stop, the lower part of the body is hinged to the upper part of the bucket, the upper part of the body is of a square vertical plate structure which is provided with two parallel vertical plates and is provided with an opening at the upper end, two sides of each vertical plate are respectively fixed with one semicircular rope groove, one side of each semicircular rope groove is fixed with the corresponding vertical plate, the other side of each semicircular rope groove is open and used for placing a steel wire rope, the limit stop is detachably fixed on the periphery of each semicircular rope groove, and the limit stop is used for limiting the steel wire rope in the semicircular rope groove;
the top pulley is arranged at the upper end of the crane boom, a plurality of rope grooves are formed in the top pulley, and the steel wire ropes respectively pass around the rope grooves to be connected with the lifting beam.
Optionally, in the excavator wire rope winding device, centers of the four semicircular rope grooves are offset in a horizontal direction in a plane parallel to the end face of the vertical plate, and the offset is symmetrical about the center of the lifting beam, so as to reduce an entry angle of the wire rope into and out of the rope groove on the top pulley;
the two semicircular rope grooves fixed on the inner sides of the two vertical plates have the same offset and opposite offset directions, the two semicircular rope grooves fixed on the outer sides of the two vertical plates have the same offset and opposite offset directions, and the offset direction of the two semicircular rope grooves fixed on the same vertical plate is opposite and the offset of one semicircular rope groove on the inner side is larger than that of the other semicircular rope groove on the outer side.
Optionally, in the excavator wire rope winding device, a curvature of the support surface of the semicircular rope groove is equal to or greater than 180 °.
Optionally, in the excavator wire rope winding device, a plurality of limit stoppers are uniformly distributed on the periphery of each semicircular rope groove.
Optionally, in the excavator wire rope winding device, the top pulley includes: the steel wire rope lifting device comprises a first supporting part, an intermediate supporting part, a second supporting part, a first pulley groove and a second pulley groove, wherein the first pulley groove is formed between the first supporting part and the intermediate supporting part, the second pulley groove is formed between the second supporting part and the intermediate supporting part, the first pulley groove and the second pulley groove are respectively provided with a plurality of rope grooves, and the steel wire rope bypasses the first pulley groove and the second pulley groove to be connected with the lifting beam.
In addition, the invention also discloses a steel wire rope winding method implemented by using the steel wire rope winding device of the excavator, and the winding method comprises the following steps:
dividing the steel wire rope into four steel wire ropes;
the four steel wire ropes firstly cross four rope grooves on one side of the top pulley;
respectively winding four steel wire ropes crossing the top pulley around four semicircular rope grooves and winding out the four semicircular rope grooves;
and enabling the four steel wire ropes wound out of the four semicircular rope grooves to cross over the four rope grooves on the other side of the top pulley.
Optionally, in the above method for winding a steel wire rope, the relative positional relationship of the four steel wire ropes at one side of the top pulley is the same as the relative positional relationship of the four steel wire ropes at the other side of the top pulley.
According to the excavator steel wire rope winding device and the winding method, the structure of the lifting beam is adjusted, four steel wire ropes can be used for winding the lifting beam to connect the bucket, and the diameter of a single steel wire rope is reduced under the condition that the overall bearing capacity of the steel wire rope is guaranteed, so that the ratio of the diameter of the top pulley to the diameter of the steel wire rope is increased, and the service life of the steel wire rope is prolonged; meanwhile, the structure of the top pulley and the arrangement mode of the steel wire rope on the top pulley are adjusted, so that the additional torsional force of the tensile force of the steel wire rope on the bucket can be eliminated, and the structure is simple.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a prior art mechanical face shovel mining excavator;
fig. 2 is a schematic structural view of a wire rope winding device of an excavator according to an embodiment of the present invention;
FIG. 3 is a view taken along line A of FIG. 2;
fig. 4 is a view from direction B of fig. 2.
Description of reference numerals:
1-bucket rod, 2-bucket lifting beam, 4-bucket, 5-lifting arm, 6-steel wire rope, 7-lifting beam, 71-body, 72-semicircular rope groove, 73-limit stop, 8-top pulley, 81-first supporting part, 82-middle supporting part, 83-second supporting part, 84-first pulley groove and 85-second pulley groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
Fig. 1 is a prior art mechanical front shovel type mining excavator, as shown in fig. 1, the prior art mechanical front shovel type mining excavator comprises a bucket rod 1, a bucket handle 2, a top pulley 8 and a bucket 4, wherein the front part of the bucket rod 1 is hinged with the rear part of the bucket 4, two ear holes are arranged at the lower part of the bucket handle 2, the bucket handle 2 is hinged above the bucket 4 through the two ear holes arranged thereon, two rope winding parts are respectively arranged at two sides of the upper part of the bucket handle 2, the top pulley 8 is arranged at the upper end of a crane boom 5 and used for realizing the reversing of a steel wire rope 6, and two steel wire ropes 6 from the top pulley 8 respectively wind the rope winding parts to be connected with the bucket handle 2 so as to connect the bucket 4; because the diameter of the steel wire rope 6 is large, one side surface of the rope winding part on the bucket lifting beam 2 is opened for convenient replacement, so that the steel wire rope 6 is conveniently put in; meanwhile, in order to prevent the steel wire rope 6 in the rope winding part from falling off, a plurality of stop blocks are arranged on the outer side of the outer diameter of the rope winding part, so that the stop blocks are utilized to limit the steel wire rope 6 in the rope winding part; when the excavator works, the pushing and lifting actions of the bucket 4 are realized through the back and forth movement of the bucket rod 1 and the up and down movement of the steel wire rope 6.
Because one side of the rope winding part on the bucket lifting beam 2 is required to be opened, only two steel wire ropes 6 can be arranged on the existing bucket lifting beam 2; in order to ensure that the steel wire rope 6 has enough bearing capacity, the total diameter of the steel wire rope 6 for connecting the bucket 4 needs to meet certain requirements, because only two steel wire ropes 6 can be arranged on the existing bucket lifting beam 2, the diameter of a single steel wire rope 6 is larger, when the diameter of the top pulley 8 is fixed, the diameter of the steel wire rope 6 is larger, the ratio of the diameter of the top pulley 8 to the diameter of the steel wire rope 6 is relatively smaller, and the service life of the steel wire rope 6 is shorter.
In order to solve the problem that the service life of the steel wire rope 6 is short due to the fact that the ratio of the diameter of the top pulley 8 to the diameter of the steel wire rope 6 is relatively small, one embodiment of the invention provides a steel wire rope winding device of an excavator, which comprises a lifting beam 7 and a top pulley 8 as shown in fig. 2-4; the lifting beam 7 comprises a body 71, semicircular rope grooves 72 and limit stops 73, the lower portion of the body 71 is hinged to the upper portion of the bucket 4, the upper portion of the body 71 is of a square vertical plate structure provided with two parallel vertical plates and an opening at the upper end, the two sides of each vertical plate are respectively fixed with the semicircular rope groove 72, one side of each semicircular rope groove 72 is fixed with the corresponding vertical plate, the other side of each semicircular rope groove 72 is open and used for placing the steel wire rope 6, the limit stops 73 are detachably fixed on the peripheries of the semicircular rope grooves 72, and the limit stops 73 are used for limiting the steel wire rope 6 in the semicircular; the top pulley 8 is installed at the upper end of the crane boom 5, a plurality of rope grooves are formed in the top pulley 8, and the steel wire ropes 6 are wound around the rope grooves respectively to be connected with the lifting beam 7.
Wherein, two risers are arranged with respect to the center of the body 71.
The invention provides a steel wire rope winding device of an excavator, which is described by a specific embodiment;
when the excavator steel wire rope winding device provided by the embodiment of the invention is used, the four steel wire ropes 6 are arranged, the four steel wire ropes 6 cross over four rope grooves on one side of a top pulley 8 arranged at the upper end of a crane boom 5, then the four steel wire ropes 6 crossing over the top pulley 8 are respectively wound and wound out of four semicircular rope grooves 72, finally the four steel wire ropes 6 wound out of the four semicircular rope grooves 72 cross over four rope grooves on the other side of the top pulley 8, and the relative position relationship of the four steel wire ropes 6 on one side of the top pulley 8 is consistent with the relative position relationship of the four steel wire ropes 6 on the other side of the top pulley 8.
So set up, through four wire rope 6 winding handles 7 in order to connect scraper bowl 4, can be under the condition of guaranteeing wire rope 6's bearing capacity, reduce single wire rope 6's diameter to increase the ratio of 8 diameters of top pulley and 6 diameters of wire rope, improve wire rope 6's life.
Because the rope grooves on the top pulley 8 are distributed along the axial direction of the top pulley 8, in order to enable the four steel wire ropes 6 wound out of the four semicircular rope grooves 72 to be aligned with the rope grooves on the top pulley 8 as far as possible in the horizontal direction, the deflection angle of the steel wire ropes 6 to the top pulley 8 is reduced; the centers of the four semicircular rope grooves 72 are offset in the horizontal direction in a plane parallel to the end face of the vertical plate, and the offset is symmetrical about the center of the lifting beam 7.
Further, because the centers of the four semicircular rope grooves 72 are alternately offset in the horizontal direction, the additional horizontal component force of the tensile force of the steel wire rope 6 can generate a deflection moment on the lifting beam 7; for this reason, as shown in fig. 2 to 4, in an embodiment of the present invention, centers of the four semicircular rope grooves 72 are offset from a center of the body 71 in a horizontal direction in a plane parallel to the end surface of the vertical plate, offsets of the two semicircular rope grooves 72 fixed on inner sides of the two vertical plates are the same and have opposite offset directions, offsets of the two semicircular rope grooves 72 fixed on outer sides of the two vertical plates are the same and have opposite offset directions, and offsets of the two semicircular rope grooves 72 fixed on the same vertical plate are opposite and an offset of one semicircular rope groove 72 located on the inner side is greater than an offset of the other semicircular rope groove 72 located on the outer side.
Specifically, as shown in fig. 2 to 4, a zero point o of the xoy coordinate system in fig. 4 represents the center of the handle 7, the x axis points to the horizontal direction parallel to the plane of the end face of the vertical plate, the y axis points to the horizontal direction perpendicular to the plane of the end face of the vertical plate, and the centers of the four semicircular rope grooves 72 are offset in the x direction and the y direction relative to the center of the handle 7; based on the installation manner of the four semicircular rope grooves 72, the arrangement of the steel ropes 6 is performed, so that the first steel rope s1 and the fourth steel rope s4 of the four steel ropes 6 wound out from the rope groove on one side of the top pulley 8 are respectively wound around the two semicircular rope grooves 72 positioned on the inner sides of the two vertical plates and are wound out, the second steel rope s2 and the third steel rope s3 of the four steel ropes 6 wound out from the rope groove on one side of the top pulley 8 are respectively wound around the two semicircular rope grooves 72 positioned on the outer sides of the two vertical plates and are wound out, and the four steel ropes wound out of the four semicircular rope grooves 72 are made to cross over the four rope grooves on the other side of the top pulley 8; among the four wire ropes 6, a first wire rope s1, a second wire rope s2, a third wire rope s3, and a fourth wire rope s4 are sequentially arranged on one side and the other side of the top sheave 8.
Thus, the rope grooves of the top pulley 8 corresponding to the first steel wire rope s1 and the fourth steel wire rope s4 are located at the extreme edge of the pulley shaft, the two corresponding semicircular rope grooves 72 are located on the inner sides of the two vertical plates of the lifting beam 7, the offset of the two semicircular rope grooves 72 on the x axis is large, and the offset angle of the two steel wire ropes on the y axis is small; rope grooves of the top pulley 8 corresponding to the second steel wire rope s2 and the third steel wire rope s3 are located in the middle of the pulley shaft, two corresponding semicircular rope grooves 72 are located on the outer sides of two vertical plates of the lifting beam 7, the offset of the two semicircular rope grooves 72 on the x axis is smaller than that of the other two semicircular rope grooves 72, and the offset angle of the two steel wire ropes on the y axis is larger; at this time, the force components of the first wire rope s1 and the fourth wire rope s4 in the horizontal direction generate an additional deflecting moment on the lifting beam 7, the force components of the second wire rope s2 and the third wire rope s3 in the horizontal direction generate another additional deflecting moment in opposite directions on the lifting beam 7, and the two deflecting moments are mutually offset.
Optionally, another arrangement symmetrical to the above arrangement may be adopted in an embodiment of the present invention to achieve the same technical effect.
In an embodiment of the present invention, the distance between the two vertical plates disposed on the handle 7 can be determined according to the sizes of the actually used steel wire rope 6 and the semicircular rope groove 72, so as to facilitate the installation of the semicircular rope groove 72 and the steel wire rope 6.
As shown in fig. 2 and 3, in one embodiment of the present invention, the arc of the support surface of the semicircular rope groove 72 is equal to or greater than 180 °.
Further, in an embodiment of the present invention, in order to prevent the wire rope 6 from being separated from the semicircular rope grooves 72 during the operation of the excavator, a plurality of removable limit stoppers 73 are uniformly distributed on the outer circumference of each semicircular rope groove 72.
Optionally, four limit stoppers 73 are uniformly distributed on the periphery of each semicircular rope groove 72.
Further, as shown in fig. 2, in an embodiment of the present invention, the top pulley 8 includes: the first supporting part 81, the middle supporting part 82, the second supporting part 83, set up the first pulley groove 84 between first supporting part 81 and middle supporting part 82, and set up the second pulley groove 85 between second supporting part 83 and middle supporting part 82, all be provided with a plurality of grooving on first pulley groove 84 and the second pulley groove 85, wire rope 6 is in proper order around first pulley groove 84, semicircle grooving 72 and second pulley groove 85 (or in proper order around second pulley groove 85, semicircle grooving 72 and first pulley groove 84) connection handle 7.
In this way, by providing the first pulley groove 84 and the second pulley groove 85, the distance between the same steel wire rope 6 that is wound around the top pulley 8 can be increased, so that the steel wire rope 6 wound out of the semicircular rope groove 72 can be aligned with the rope grooves of the first pulley groove 84 and the second pulley groove 85 of the top pulley 8; by providing the intermediate support portion 82, the support distance and the bending moment of the pulley shaft of the top pulley 8 can be effectively reduced.
Optionally, in an embodiment of the present invention, a double-lug hole structure is disposed at a lower portion of the body 71, and the body 71 is hinged to an upper portion of the bucket 4 through the double-lug hole structure.
In addition, an embodiment of the present invention further provides a wire rope winding method implemented by using the above-mentioned excavator wire rope winding device, where the winding method includes the following steps:
dividing the steel wire ropes 6 into four steel wire ropes;
the four steel wire ropes 6 firstly cross four rope grooves on one side of a top pulley 8;
the four steel wire ropes 6 crossing the top pulley 8 are respectively wound around the four semicircular rope grooves 72 and are wound out from the four semicircular rope grooves 72;
the four steel cables 6 wound out of the four semicircular grooves 72 are passed over the four grooves on the other side of the top sheave 8.
Alternatively, the relative positional relationship of the four wire ropes 6 on one side of the top pulley 8 is the same as the relative positional relationship of the four wire ropes 6 on the other side of the top pulley 8.
Therefore, the excavator steel wire rope winding device and the winding method provided by the embodiment of the invention can use four steel wire ropes 6 to wind the lifting beam 7 to connect the bucket 4 by adjusting the structure of the lifting beam, and reduce the diameter of a single steel wire rope 6 under the condition of ensuring the overall bearing capacity of the steel wire rope 6, so that the ratio of the diameter of the top pulley 8 to the diameter of the steel wire rope 6 is increased, and the service life of the steel wire rope 6 is prolonged; meanwhile, the structure of the top pulley 8 and the arrangement mode of the steel wire rope 6 on the top pulley 8 are adjusted, so that the torsion force added to the bucket 4 by the tensile force of the steel wire rope can be eliminated, and the structure is simple.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The device for winding the steel wire rope of the excavator is characterized by comprising a lifting beam and a top pulley;
the lifting beam comprises a body, semicircular rope grooves and a limit stop, the lower part of the body is hinged to the upper part of the bucket, the upper part of the body is of a square vertical plate structure which is provided with two parallel vertical plates and is provided with an opening at the upper end, two sides of each vertical plate are respectively fixed with one semicircular rope groove, one side of each semicircular rope groove is fixed with the corresponding vertical plate, the other side of each semicircular rope groove is open and used for placing a steel wire rope, the limit stop is detachably fixed on the periphery of each semicircular rope groove, and the limit stop is used for limiting the steel wire rope in the semicircular rope groove;
the top pulley is arranged at the upper end of the crane boom, a plurality of rope grooves are formed in the top pulley, and the steel wire ropes respectively pass around the rope grooves to be connected with the lifting beam.
2. The excavator wire rope winding device according to claim 1, wherein the centers of the four semicircular rope grooves are offset in the horizontal direction in a plane parallel to the end face of the vertical plate, and the offset is symmetrical about the center of the handle so as to reduce the cut-in angle of the wire rope into and out of the rope groove on the top pulley;
the two semicircular rope grooves fixed on the inner sides of the two vertical plates have the same offset and opposite offset directions, the two semicircular rope grooves fixed on the outer sides of the two vertical plates have the same offset and opposite offset directions, and the offset direction of the two semicircular rope grooves fixed on the same vertical plate is opposite and the offset of one semicircular rope groove on the inner side is larger than that of the other semicircular rope groove on the outer side.
3. The excavator wire rope winding apparatus of claim 1 wherein the arc of the bearing surface of the semicircular rope groove is equal to or greater than 180 °.
4. The excavator wire rope winding device of claim 1, wherein a plurality of limit stoppers are uniformly distributed on the periphery of each semicircular rope groove.
5. The excavator rope winding arrangement of claim 1, wherein the top sheave comprises: the steel wire rope lifting device comprises a first supporting part, an intermediate supporting part, a second supporting part, a first pulley groove and a second pulley groove, wherein the first pulley groove is formed between the first supporting part and the intermediate supporting part, the second pulley groove is formed between the second supporting part and the intermediate supporting part, the first pulley groove and the second pulley groove are respectively provided with a plurality of rope grooves, and the steel wire rope bypasses the first pulley groove and the second pulley groove to be connected with the lifting beam.
6. A wire rope winding method implemented by the excavator wire rope winding apparatus according to any one of claims 1 to 5, wherein the winding method comprises:
dividing the steel wire rope into four steel wire ropes;
the four steel wire ropes firstly cross four rope grooves on one side of the top pulley;
respectively winding four steel wire ropes crossing the top pulley around four semicircular rope grooves and winding out the four semicircular rope grooves;
and enabling the four steel wire ropes wound out of the four semicircular rope grooves to cross over the four rope grooves on the other side of the top pulley.
7. The winding method according to claim 6, wherein the relative positional relationship of the four wire ropes on one side of the top sheave coincides with the relative positional relationship of the four wire ropes on the other side of the top sheave.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911414819.1A CN111173055B (en) | 2019-12-31 | 2019-12-31 | Excavator steel wire rope winding device and winding method |
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| CN201911414819.1A CN111173055B (en) | 2019-12-31 | 2019-12-31 | Excavator steel wire rope winding device and winding method |
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| CN111173055B CN111173055B (en) | 2022-02-18 |
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| CN114809149A (en) * | 2022-04-25 | 2022-07-29 | 太原重工股份有限公司 | Bucket and mining excavator |
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|---|---|---|---|---|
| CN114809149A (en) * | 2022-04-25 | 2022-07-29 | 太原重工股份有限公司 | Bucket and mining excavator |
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| Publication number | Publication date |
|---|---|
| CN111173055B (en) | 2022-02-18 |
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