CN112030583A

CN112030583A - Steel wire rope

Info

Publication number: CN112030583A
Application number: CN201910482486.XA
Authority: CN
Inventors: 崔子锋; 王雪梅; 张文成; 郝家良
Original assignee: JIANFENG SLING CO Ltd
Current assignee: JIANFENG SLING CO Ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-12-04

Abstract

The invention relates to a steel wire rope, which belongs to the technical field of steel wire ropes and comprises a steel wire rope body, wherein the steel wire rope body comprises a rope core and a preset number of spiral rope strands twisted around the rope core, the rope core comprises a first rope core and a second rope core, the first rope core is a steel core, the second rope core is a fiber core or a composite core formed by winding a plurality of unit steel wires on the outer layer of the fiber core, the first rope core is positioned at least one end part of the steel wire rope body, one end part of the first rope core, which is close to the second rope core, is woven in the rope strands, and the other end part, which is far away from the second rope core, is used for traction of the steel wire rope body, so that the traction operation of the steel wire rope is more convenient and stable, and the traction efficiency of the steel wire rope is improved.

Description

Steel wire rope

Technical Field

The invention relates to the technical field of steel wire ropes, in particular to a steel wire rope convenient to pull.

Background

The steel wire rope is a spiral rope formed by twisting a plurality of layers of steel wires into strands according to a certain rule and then twisting a certain number of strands by taking a rope core as a center, wherein the steel wires meet the requirements on mechanical property and geometric dimension; the core of the steel wire rope comprises a fiber core and a steel core; the fiber core is characterized in that grease is easy to store, a continuous lubricating effect can be provided for the steel wire rope, the steel core can provide extra tension for the steel wire rope and can strongly support an outer layer rope strand, and the structural integrity of the steel wire rope is ensured.

When a steel wire rope with a fiber core as a rope core is subjected to traction operation, if a steel wire rope body or a steel wire rope sleeve made of the steel wire rope body is used as a traction part, when a traction mechanism is connected with the traction part through a fixing device and penetrates through a gap, the traction part is difficult to pass through the gap due to overlarge volume, metal fatigue of the traction part is easily caused in mutual friction with the gap, the traction part is gradually broken, and potential safety hazards exist; in order to solve the problem of overlarge volume of a traction part during traction, if a single rope strand is taken as a traction part, but the rope strand is twisted on the outer side of a rope core, the single rope strand can be separated from a steel wire rope due to uneven stress of the steel wire rope, so that the structure of the steel wire rope is damaged or even scrapped; if the rope core of the fiber core is used as a traction part, the traction force is increased along with the increase of the traction distance or height of the steel wire rope, however, the rope core of the traction part is broken due to insufficient bearing force, so that the traction cannot be continuously completed, the traction efficiency is reduced, and great potential safety hazard exists in the traction process; therefore, it is necessary to provide a steel wire rope which is convenient, stable, safe and efficient in traction.

Disclosure of Invention

In view of the above situation, the present invention mainly solves the problem of traction of a steel wire rope in the prior art, and provides a steel wire rope, wherein the first rope core is used as a traction rope core to realize efficient traction of the steel wire rope, and meanwhile, the convenience, stability and safety of traction operation are ensured.

To achieve the object, the present invention provides a steel wire rope comprising a steel wire rope body including a core and a predetermined number of strands twisted spirally around the core, characterized in that: the rope core comprises a first rope core and a second rope core, the first rope core is a steel core, the second rope core is a fiber core or a composite core formed by winding a plurality of unit steel wires on the outer layer of the fiber core, the first rope core is positioned at least one end part of the steel wire rope body, one end part of the first rope core close to the second rope core is woven in the rope strand, the other end part of the first rope core far away from the second rope core is used for traction of the steel wire rope body, the second rope core can store grease for the steel wire rope and provide continuous lubrication, the steel core can provide extra tensile force for the steel wire rope as a traction rope core for traction, and meanwhile, the steel core can strongly support the outer layer of the steel wire rope, and when the steel core is used as a traction part, the structural integrity of the steel wire rope is effectively ensured.

Preferably, the method comprises the following steps: the length of the first rope core is 600 mm-2600 mm, and enough use allowance of the first rope core is guaranteed.

Preferably, the method comprises the following steps: the first rope core extends out of the steel wire rope body to form a rope core exposed section with a preset length, the rope core exposed section is used as a traction part of the steel wire rope, the time for stripping the first rope core from the steel wire rope body on a traction site is saved, and the traction part is small in size, so that the convenient traction operation of the steel wire rope is facilitated, and the traction efficiency is improved.

Further: the length of the exposed section of the rope core is 400-1200 mm, enough use allowance is reserved, traction and use are convenient, and practicability is improved.

Further: the exposed section of the rope core comprises a steel wire rope sleeve used for traction, the steel wire rope sleeve comprises a ring part and a positioning part fixed on the ring part, the positioning part is used for fixing the steel wire rope sleeve, the steel wire rope sleeve is used for serving as a traction part, and the exposed section of the rope core is made into the time of the steel wire rope sleeve, so that the practicability and the traction efficiency are improved.

Further: the diameter of the steel wire rope body is D, and the maximum size of the cross section of the positioning piece is D₁Wherein D is₁<D. The volume size of the traction part is reduced, and the steel wire rope is convenient to realize traction and sleeve penetration.

Further: the steel wire rope sleeve is provided with a manganese series phosphating coating for protecting the steel wire rope sleeve and avoiding metal fatigue caused by friction.

Further: the positioning piece is an annular clamping piece and is used for fixing the steel wire rope sleeve.

Further: the annular clamping piece is an annular locking hoop and is used for fixing wire rope sleeves with different diameters.

The invention has the beneficial effects that:

the invention provides a steel wire rope, which comprises a steel wire rope body, wherein at least one end part of the steel wire rope body is provided with a first rope core, the first rope core is a steel core, one end part of the steel core, which is close to a second rope core, is woven in a rope strand, the other end part of the steel core, which is far away from the second rope core, is used as a traction part for traction of the steel wire rope body, because the size of the steel core is smaller than that of the steel wire rope body, and the steel core is positioned at the axis position of the steel wire rope body, the structure in the steel wire rope body is most stable, the size of the steel core is smaller than that of the steel wire rope body when the steel core is directly used as the traction part or manufactured into a ring sleeve type traction part, the flexibility is better, so that the steel wire rope body can be more smoothly driven to pass through gaps, the traction efficiency is greatly, the service life is prolonged, and the integrity of the steel wire rope is ensured; and the steel core possesses enough big holding capacity, can realize long distance or higher high traction when carrying out the operation of pulling wire rope guarantees not to appear breaking, improves the stability of structure, further improves the efficiency and the security of pulling.

Drawings

Fig. 1 is a schematic view of a partial cross-sectional structure of a first steel wire rope according to an embodiment of the present invention;

fig. 2 is a schematic view of a partial cross-sectional structure of a second steel cord according to an embodiment of the present invention;

fig. 3 is a schematic view of a partial cross-sectional structure of a third steel cord according to an embodiment of the present invention;

fig. 4 is a schematic view of a partial cross-sectional structure of a fourth steel cord according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fifth steel wire rope according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a sixth steel wire rope according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a seventh steel wire rope according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a steel cord according to an embodiment of the present invention;

fig. 9 is another schematic cross-sectional view of a steel cord according to an embodiment of the present invention;

FIG. 10 is a cross-sectional view of the positioning member of FIGS. 5, 6 and 7;

figure 11 is a schematic view of the construction of the wire rope sling according to figures 5, 6 and 7;

in the figure: 1-rope core, 2-rope strand, 3-first rope core, 31-exposed rope core section, 311-steel wire rope sleeve, 3111-ring part, 3112-positioning piece and 4-second rope core.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments. It should be noted that: referring to fig. 8 and 9, the steel wire rope type in fig. 8 is a west lu type steel wire rope with 6 strands per 19 cores, the steel wire rope type in fig. 9 is a waring type steel wire rope with 6 strands per 19 cores, the following drawings and examples adopt the above two steel wire ropes for illustration, and are only used for more clearly explaining the technical scheme of the present invention, but do not indicate or suggest that the steel wire rope in question must be the above steel wire rope, so the protection scope of the present invention cannot be limited thereby.

Example 1

Referring to fig. 1, 8 and 9, a steel cord of the type of a xilu-type steel cord having 6 strands 2 per 19 cores or a warrington-type steel cord having 6 strands 2 per 19 cores according to example 1 includes a steel cord body including a core 1 and a predetermined number of strands 2 twisted in a spiral shape around the core 1.

Referring to fig. 1, the core 1 includes a first core 3 and a second core 4, the first core 3 is a steel core, the second core 4 is a fiber core or a composite core formed by winding a plurality of unit steel wires around an outer layer of the fiber core, the first core 3 is located at one end of the steel wire rope body, one end of the first core 3 close to the second core 4 is woven in the strand 2, and the other end thereof away from the second core 4 is used for traction of the steel wire rope body, so that the traction operation of the steel wire rope is convenient and efficient; the second rope core 4 can store grease for the steel wire rope, a continuous lubricating effect is provided, the steel core is used as a traction rope core for traction, and the steel core has enough bearing capacity, so that the stability of the structure of the first rope core 3 used as a traction part is improved, the steel wire rope can be dragged for a long distance or at a higher height during traction operation, breakage is avoided, and the traction efficiency and the safety of the steel wire rope are further improved.

Referring to fig. 1, the length of the first rope core 3 is 600mm to 2600mm, and a sufficient size margin is provided for the first rope core 3 to serve as a traction core to manufacture a traction part, in this embodiment, the first rope core 3 is used for manufacturing the traction part, so that the steel wire rope is conveniently pulled, and meanwhile, the steel wire rope is prevented from breaking when being pulled, and the complete quality of the steel wire rope is ensured.

Preparation work before use:

referring to fig. 1 and 3, the steel wire rope shown in fig. 1 is processed at a traction work site, one end of the steel wire rope body provided with the first rope core 3 is disassembled, so that part of the strands 2 are separated from the first rope core 3, a rope core exposed section 31 of the first rope core 3 with a preset length is reserved, the separated strands 2 are removed along the joint of the strands 2 and the steel wire rope body, and only the rope core exposed section 31 is reserved to be connected with the steel wire rope body, wherein the state is shown in fig. 3; directly utilize the exposed section 31 of rope core of predetermined length that first rope core 3 of wire rope body was disassembled and is exposed is as drawing the position, because it is small and pliability good to draw the position, can be more smooth and easy when drawing, has reduced simultaneously and has drawn the position and wear the fatigue that produces because of the friction when winding the clearance, is favorable to realizing wire rope's convenient operation of drawing has improved traction efficiency.

Referring to fig. 3, in the process of processing the steel wire rope, the length of the exposed section 31 of the rope core, which is obtained by disassembling the steel wire rope body 1, is 400 mm-1200 mm, and sufficient use allowance is reserved, so that the steel wire rope is convenient to clamp by a traction mechanism, and the practicability of the steel wire rope is improved.

Referring to fig. 3 and 5, or processing the steel cable shown in fig. 3 at a traction work site, the exposed segment 31 of the cable core in fig. 3 is further woven or made into a closed steel cable jacket 311, which is shown in fig. 5.

Referring to fig. 5, the wire rope cover 311 includes a ring portion 3111 and a positioning member 3112 for fixing the ring portion 3111, and the positioning member 3112 is used for fixing the wire rope cover 311 in a closed state to ensure the integrity thereof.

Referring to fig. 5, 8, 9 and 11, in the manufacturing process of the traction site, the size of the ring portion 3111 of the wire rope sleeve 311 should be changed according to the diameter of the wire rope, that is, D: a is 1:10, and a: B is 1: 2; for example: when the diameter of the steel wire rope is D-16 mm, the specification of the steel wire rope sleeve 311 is a-160 mm, and B-320 mm.

Referring to fig. 5 and 10, the positioning member 3112 of the cable jacket 311 may be formed into a ring-shaped fastener for fixing the cable jacket 311 during the manufacturing process, and the ring-shaped fastener may be a ring-shaped locking band for fixing cable jackets 311 with different diameters.

Referring to fig. 5, 8, 9 and 10, the diameter of the steel cable body is D, and the maximum dimension of the cross section of the positioning member 3112 is D₁Wherein D is₁<D, in the process of processing and manufacturing the steel wire rope sleeve 311, the relation can be realized, and compared with the traction part directly made of the steel wire rope body in the prior art, the steel wire rope sleeve 311 reduces the volume size of the traction part of the steel wire rope, is convenient for efficiently and quickly realizing the traction and the winding of the steel wire rope, and improves the traction efficiency.

The use process comprises the following steps:

first, the rope core exposed segment 31 shown in fig. 3 or the wire rope cover 311 shown in fig. 5 is directly pulled by a pulling mechanism, so that the wire rope can be pulled.

Then, a traction mechanism is started, the exposed segment 31 of the rope core shown in fig. 3 or the steel wire rope sleeve 311 shown in fig. 5 is drawn by the traction mechanism and is wound in a certain gap, and particularly when the steel wire rope is wound in a pulley groove of a pulley, the traction part is easy to pass through the pulley groove due to small volume; meanwhile, the problem that metal fatigue is caused due to abrasion of the steel wire rope body at the gap is avoided, the service life is prolonged, and the integrity of the steel wire rope is ensured.

Finally, when the steel wire rope reaches the required position, the traction mechanism is closed, and under the condition of finishing the traction operation, a worker can remove the exposed rope core section 31, the steel wire rope sleeve 311 or the first rope core 3 and the strand 2 wrapped on the outer layer thereof contained in the steel wire rope for traction in different states according to requirements.

Referring to fig. 1 and 3, when the steel wire rope is produced, the steel wire rope in which the first rope core 3 extends out of the steel wire rope body to form the exposed rope core section 31 with the predetermined length can be directly produced on the basis of the technical scheme of fig. 1, wherein the exposed rope core section 31 has a length of 400mm to 1200mm, and sufficient use allowance is reserved, so that the steel wire rope is convenient to be clamped by a traction mechanism, and the practicability of the steel wire rope is improved.

Referring to fig. 1 and 5, or in the manufacturing of the steel wire rope, the steel wire rope with the steel wire rope jacket 311 can be directly manufactured on the basis of the technical scheme of fig. 1, so that the time for peeling the first rope core 3 from the steel wire rope body and manufacturing the steel wire rope jacket 311 at a traction site is saved.

The wire rope sleeve 311 includes a ring portion 3111 and a positioning member 3112 for fixing the ring portion 3111, wherein the positioning member 3112 is configured to fix the wire rope sleeve 311 in a closed state, so as to ensure the integrity thereof; in the manufacturing process of the ring portion 3111 in a traction field, the specification size of the ring portion 3111 should be changed correspondingly according to the diameter size of the steel wire rope, that is, D: a is 1:10, and a: B is 1: 2; for example: when the diameter of the steel wire rope is D equal to 16mm, the specification of the steel wire rope sleeve 311 is a 160mm, and B is 320 mm; the positioning member 3112 can be made into an annular fastener for fixing the wire rope sleeve 311 during the manufacturing process, and the annular fastener can be an annular locking hoop for fixing the wire rope sleeves 311 with different diameters; in the manufacturing process, a manganese-based phosphate coating is provided on the wire rope sleeve 311 to protect the wire rope sleeve 311 and avoid metal fatigue caused by friction.

Further, the diameter of the steel wire rope body is D, and the maximum size of the section of the positioning piece 3112 is D₁Wherein D is₁<D, in the process of processing and manufacturing the steel wire rope sleeve 311, the relation can be realized, and compared with the traction part directly made of the steel wire rope body in the prior art, the steel wire rope sleeve 311 reduces the volume size of the traction part of the steel wire rope, is convenient for efficiently and quickly realizing the traction and the winding of the steel wire rope, and improves the traction efficiency.

Example 2

Referring to fig. 2, the steel wire rope provided by this embodiment is improved based on the technical solution of embodiment 1, the first rope cores 3 may be located at two end portions of the steel wire rope body, and both end portions of the steel wire rope body, where the first rope cores 3 are located, may be used as traction portions of the steel wire rope, so that time for a worker to select the traction portions of the steel wire rope is reduced, the worker may use the two traction portions to perform traction of the steel wire rope body at the same time, and traction efficiency of the steel wire rope is improved.

Referring to fig. 2 and 4, of course, when producing the steel wire rope, on the basis of the technical solution of fig. 2, the steel wire rope in which the first rope core 3 extends to the outside of the steel wire rope body to form the exposed rope core section 31 with the predetermined length can be directly produced, wherein the length of the exposed section 31 of the rope core is 400 mm-1200 mm, and enough use allowance is reserved, so that the exposed section is convenient for being clamped by a traction mechanism, the practicability of the steel wire rope is improved, as shown in fig. 4, the steel wire rope with the exposed rope core sections 31 at two ends is directly provided, so that the time for workers to expose the two first rope cores 3 from the steel wire rope body on a traction work site is saved, the efficiency of traction work is improved, the two exposed rope core sections 31 can be selected as traction parts of the steel wire rope, the two traction parts are small in size and can be simultaneously pulled by a traction mechanism, and traction operation can be conveniently and efficiently completed.

Referring to fig. 2 and 6, or when manufacturing the steel wire rope, the steel wire rope with the steel wire rope jacket 311 may be directly manufactured on the basis of the technical solution of fig. 2, as shown in fig. 6, one end of the steel wire rope body is provided with the exposed rope core section 31, and the other end of the steel wire rope body is provided with the steel wire rope jacket 311 made of the exposed rope core section 31, and the design of the structure saves the time for peeling the first rope core 3 from the steel wire rope body and weaving or manufacturing the steel wire rope jacket 311 at a towing site; the exposed rope core section 31 and the steel wire rope sleeve 311 are small in size, can serve as the traction part of the steel wire rope and can be simultaneously dragged by the traction mechanism, and the traction operation can be conveniently and efficiently completed.

Referring to fig. 6 and 7, a further step of weaving or manufacturing the exposed core segment 31 of the other end of the steel cord body of fig. 6 into a closed steel cord sleeve 311 is shown in fig. 7; the time for weaving or manufacturing the two steel wire rope sleeves 311 on the traction site is saved; two the wire rope cover 311 all can regard as the position of pulling, and two pull the position small and can be pulled by drive mechanism simultaneously, can accomplish the operation of pulling by convenient efficient.

The foregoing description is only of particular embodiments of the present invention, but it will be understood by those skilled in the art that the present invention is by way of illustration only, the scope of the present invention being defined by the appended claims. Accordingly, all equivalent changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A steel cord comprising a steel cord body including a core and a predetermined number of strands twisted into a spiral around the core, characterized in that: the rope core comprises a first rope core and a second rope core, the first rope core is a steel core, the second rope core is a fiber core or a composite core formed by winding a plurality of unit steel wires on the outer layer of the fiber core, the first rope core is positioned at least one end part of the steel wire rope body, one end part of the first rope core close to the second rope core is woven in the rope strand, and the other end part of the first rope core far away from the second rope core is used for traction of the steel wire rope body.

2. A steel cord according to claim 1, characterized in that: the length of the first rope core is 600 mm-2600 mm.

3. A steel cord according to claim 1 or 2, characterized in that: the first rope core extends out of the steel wire rope body to form a rope core exposed section with a preset length.

4. A steel cord according to claim 3, characterized in that: the length of the exposed section of the rope core is 400 mm-1200 mm.

5. A steel cord according to claim 3, characterized in that: the exposed section of the rope core comprises a steel wire rope sleeve for traction, and the steel wire rope sleeve comprises a ring part and a positioning piece for fixing the ring part.

6. A steel cord according to claim 5, characterized in that: the diameter of the steel wire rope body is D, and the maximum size of the cross section of the positioning piece is D₁Wherein D is₁<D。

7. A steel cord according to claim 5, characterized in that: the steel wire rope sleeve is provided with a manganese series phosphating coating.

8. A steel cord according to claim 5, characterized in that: the positioning piece is an annular clamping piece.

9. A steel cord according to claim 8, characterized in that: the annular clamping piece is an annular locking hoop.