CN112663366B - Fiber rope pre-drafting device and pre-drafting method - Google Patents
Fiber rope pre-drafting device and pre-drafting method Download PDFInfo
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- CN112663366B CN112663366B CN202011365059.2A CN202011365059A CN112663366B CN 112663366 B CN112663366 B CN 112663366B CN 202011365059 A CN202011365059 A CN 202011365059A CN 112663366 B CN112663366 B CN 112663366B
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Abstract
Fiber rope pre-drafting device, comprising: a device platform; the first drafting assembly is arranged and installed on the device platform and comprises at least one first rotating part for drafting the fiber rope; a movable assembly disposed on the device platform, configured to be movable on the device platform; the second drafting assembly is arranged on the movable assembly and comprises at least one second rotating part for drafting the fiber rope, the second rotating part is arranged in parallel with the first rotating part, and the distance between the second rotating part and the first rotating part is adjustable; the driving assembly is connected with the second rotating part and used for driving the second rotating part to move and adjusting the distance between the driving assembly and the first rotating part; a tension detection assembly configured to detect tension applied to the fiber rope; wherein the fiber rope is arranged on the first rotating component and the second rotating component, and the tension of the fiber rope is adjusted by adjusting the distance between the first rotating component and the second rotating component.
Description
Technical Field
The application belongs to the technical field of fiber ropes, and particularly relates to a fiber rope pre-drafting device and a pre-drafting method.
Background
The elongation at break is another of the most important performance criteria of a rope after subsequent breaking strength and linear density. Newly formed braided or twisted fiber ropes tend to have significant elongation under applied load due to their dense structure and a portion of the elongation is non-recoverable, which is in fact the structural elongation of the rope. For rope products with high rope dimensional stability requirements, such as hoisting ropes, electric hauling ropes, sailing ropes, deep sea buoy mooring lines, Floating Production Storage and Offloading (FPSO) single and multi point mooring lines, etc., it is desirable to eliminate structural elongation of the ropes during production.
The best means for eliminating the structural elongation of the rope is to carry out a circulating pre-drafting process treatment on the rope, namely, a certain tensile force is applied to carry out circulating pre-drafting of stretching, loosening, re-stretching and re-loosening on the rope. At present, the cyclic pre-drafting process treatment is generally carried out on a horizontal tensile machine, for rope products with larger length, such as a deep sea buoy mooring rope with the length of 500 meters or more, the rope can only be pre-stretched by applying tensile force to the rope by a vehicle on a site with larger span, the pre-drafting mode has the problems of complex operation, difficulty in accurately controlling the drafting force, easiness in sanding and staining of the rope in the pre-drafting process and potential safety hazards in stretching.
Disclosure of Invention
In view of this, the technical solution disclosed in the embodiments of the present application is to provide a fiber rope pre-drafting device to eliminate the structural elongation of the fiber rope, so that the fiber rope obtains an ideal mechanical performance index.
Some embodiments disclose a fiber rope pre-drafting apparatus, comprising:
a device platform;
the first drafting assembly is arranged and installed on the device platform and comprises at least one first rotating part for drafting the fiber rope;
a movable assembly disposed on the device platform, configured to be movable on the device platform;
the second drafting assembly is arranged on the movable assembly and comprises at least one second rotating part for drafting the fiber rope, the second rotating part is arranged in parallel with the first rotating part, and the distance between the second rotating part and the first rotating part is adjustable;
the driving assembly is connected with the second rotating part and used for driving the second rotating part to move and adjusting the distance between the driving assembly and the first rotating part;
a tension detection assembly configured to detect tension applied to the fiber rope;
wherein the fiber rope is arranged on the first rotating component and the second rotating component, and the tension of the fiber rope is adjusted by adjusting the distance between the first rotating component and the second rotating component.
Further, some embodiments disclose the fiber rope pre-drafting device, wherein the first drafting assembly further comprises:
the first gearbox is connected with the first rotating part and used for transmitting power to the first rotating part;
and the first motor is connected with the first gearbox and used for driving the first rotating component to rotate.
Some embodiments disclose the fiber rope pre-drafting apparatus, the second drafting assembly further comprising:
the second gearbox is connected with the second rotating part and used for transmitting power to the second rotating part;
and the second motor is connected with the second gearbox and used for driving the second rotating part to rotate.
Some embodiments disclose a fiber rope pre-drafting apparatus, wherein a first continuous groove is provided on a surface of a first rotating member.
Some embodiments disclose the fiber rope pre-drafting device, wherein a second continuous groove is arranged on the surface of the second rotating part.
Some embodiments disclose the fiber rope pre-drafting device, wherein the first continuous groove surface is provided with a rubber material.
Some embodiments disclose the fiber rope pre-drafting apparatus, wherein the second continuous groove surface is provided as a rubber material.
Some embodiments disclose a fiber rope pre-drafting device, wherein a ratio of a diameter of the first rotating member to a diameter of the fiber rope is 30-40: 1.
Some embodiments disclose the fiber rope pre-drafting device, wherein the ratio of the diameter of the second rotating part to the diameter of the fiber rope is 30-40: 1.
In another aspect, some embodiments disclose a method for pre-drafting a fiber rope, according to which a fiber rope pre-drafting device performs a pre-drafting process on the fiber rope, the method specifically including:
(1) arranging a fiber rope to be wound on the first rotating part and the second rotating part in sequence;
(2) setting the drafting tension of the fiber rope;
(3) starting the first rotating part and the second rotating part to enable the fiber rope to be in a tensioned state and keep moving;
(4) and detecting the tension of the fiber rope, and adjusting the distance between the first rotating part and the second rotating part through the driving assembly according to the detected tension to ensure that the fiber rope obtains the tension equivalent to the set drafting tension, thereby realizing the continuous pre-drafting of the fiber rope.
The utility model provides a fiber rope drafting arrangement in advance, through the distance between adjustment first rotating member and the second rotating member, realize the tension control to fiber rope, and then realize drafting in advance under setting for the tensile force, the rotation through first rotating member and second rotating member drives fiber rope continuous movement simultaneously, make fiber rope obtain continuous pre-drafting in the removal, can realize the drafting in advance to arbitrary length fiber rope, and can accurate settlement and control the drafting pulling force in advance, good practical value has in fiber rope drafting arrangement in advance, wide application prospect has in fiber rope field of making.
Drawings
FIG. 1 example 1 schematic composition of a fiber rope pre-drafting system
FIG. 2 embodiment 2 is a schematic view of the arrangement of the first rotating member and the second rotating member
FIG. 3 embodiment 3 schematic composition of a fiber rope pre-drafting device
Reference numerals
1 first drafting assembly 2 second drafting assembly
3 movable assembly 4 drive assembly
5 first rope storage basket of tension detection assembly 6
7 second rope storage basket 8 control assembly
11 first rotating part 12 first gearbox
13 first motor 21 second rotating part
22 second gearbox 23 second electric machine
31 sliding platform 32 sliding rail
33 mobile platform 34 rolling wheel
111 first rotating shaft 112 first guide roller
113 first continuous groove 211 and second rotation shaft
212 second guide roller 213 second continuous groove
100 device platform 101 fiber rope
102 rolling track R1First direction of rotation
R2Second direction of rotation L rope spacing
Detailed Description
The word "embodiment" as used herein, is not necessarily to be construed as preferred or advantageous over other embodiments, including any embodiment illustrated as "exemplary". Performance index tests in the examples of this application, unless otherwise indicated, were performed using routine experimentation in the art. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; other test methods and techniques not specifically mentioned in the present application are those commonly employed by those of ordinary skill in the art.
The terms "substantially" and "about" are used herein to describe small fluctuations. For example, they may mean less than or equal to ± 5%, such as less than or equal to ± 2%, such as less than or equal to ± 1%, such as less than or equal to ± 0.5%, such as less than or equal to ± 0.2%, such as less than or equal to ± 0.1%, such as less than or equal to ± 0.05%. Numerical data represented or presented herein in a range format is used merely for convenience and brevity and thus should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. For example, a numerical range of "1 to 5%" should be interpreted to include not only the explicitly recited values of 1% to 5%, but also include individual values and sub-ranges within the indicated range. Thus, included in this numerical range are individual values, such as 2%, 3.5%, and 4%, and sub-ranges, such as 1% to 3%, 2% to 4%, and 3% to 5%, etc. This principle applies equally to ranges reciting only one numerical value. Moreover, such an interpretation applies regardless of the breadth of the range or the characteristics being described.
In this document, including the claims, all conjunctions such as "comprising," including, "" carrying, "" having, "" containing, "" involving, "" containing, "and the like are to be understood as being open-ended, i.e., to mean" including but not limited to. Only the conjunctions "consisting of … …" and "consisting of … …" are closed conjunctions.
In the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In the examples, some methods, means, instruments, apparatuses, etc. known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application. The fiber rope pre-drafting device disclosed herein can achieve pre-drafting for fiber ropes of various structures and various materials, such as 3-strand twisted rope, 4-strand twisted rope, 8-strand braided rope, 12-strand braided rope, double braided rope and coated rope; one or more general synthetic fiber ropes represented by terylene, chinlon, polypropylene, polyethylene, vinylon and the like, high-performance fiber material ropes represented by aramid fiber ropes, polyarylate fiber ropes, ultra-high molecular weight polyethylene fibers, PBO fibers and the like, and the like.
On the premise of no conflict, the technical features disclosed in the embodiments of the present application may be combined arbitrarily, and the obtained technical solution belongs to the content disclosed in the embodiments of the present application.
In some embodiments, a fiber rope pre-drafting apparatus comprises:
a device platform; the device platform is usually the basis of a fiber rope pre-drafting device, usually with a reasonable structure and a plane area provided with each component assembly and each component, so as to arrange each component reasonably to make them fit with each other, for example, the device platform has enough strength to support the weight of the device, has a reasonable plane to fix each component, and the reasonable structure sets the connecting parts and the structure between the components;
the first drafting assembly is arranged and installed on the device platform and comprises at least one first rotating part for drafting the fiber rope; usually, the first drafting assembly is one of the important components for rope pre-drafting, and is fixed on a reasonable position of the device platform so as to arrange the fiber rope on a reasonable position, for example, the rope is arranged on a first rotating component by fixing or winding so as to apply reasonable tension to the fiber rope, the first rotating component is a component which can rotate around the rotating shaft of the first rotating component, the fiber rope arranged on the first rotating component moves synchronously with the first rotating component, and simultaneously, the continuous movement of the fiber rope is realized so as to perform pre-drafting treatment on the continuously moving fiber rope;
a movable assembly disposed on the device platform, configured to be movable on the device platform; the movable component is usually arranged on a reasonable part of the device platform and can move, such as slide, roll and the like, in a set area, and the device platform is usually provided with a structure matched with the movable component so as to realize the movement of the movable component, such as a slide rail for sliding the movable component, a track convenient for directional rolling and the like;
the second drafting assembly is arranged and installed on the movable assembly and comprises at least one second rotating part for drafting the fiber rope, the second rotating part is arranged in parallel with the first rotating part, the distance between the second rotating part and the first rotating part is adjustable, and usually, the rotating shaft of the second rotating part and the rotating shaft of the first rotating part are positioned in the same plane; the second drafting assembly is also one of important components for drafting the fiber rope, and usually the fiber rope needs to be fixed on a reasonable position of the second drafting assembly, for example, the rope is arranged on the second rotating component by fixing or winding, so that the fiber rope can obtain the applied tension, the second rotating component is a component which can rotate around the rotating shaft of the second rotating component, the fiber rope arranged on the second rotating component moves synchronously with the second rotating component, and simultaneously, the continuous movement of the fiber rope is realized, so as to perform the pre-drafting treatment on the continuously moving fiber rope; usually, after the fiber rope is arranged on the first rotating part and the second rotating part at the same time, the fiber rope is respectively connected with the two rotating parts in a reasonable mode, so that the fiber rope is in a stretching state between the two rotating parts, further, the stretching degree of the fiber rope can be adjusted by adjusting the distance between the first rotating part and the second rotating part, so as to apply a set stretching force to the fiber rope, the stretching force is equivalent to the tension of the fiber rope, and the tension of the fiber rope can be monitored in real time through the tension detection assembly; the first rotating member and the second rotating member are generally arranged in parallel, so that the rotating shafts thereof are parallel to each other so as to maintain a constant distance during the rotation thereof;
the driving assembly is connected with the second rotating part and used for driving the second rotating part to move and adjusting the distance between the driving assembly and the first rotating part; the driving assembly is generally capable of providing a certain pulling or pressing force to push the second rotating member to achieve the movement of the position thereof on the device platform so as to adjust the distance from the first rotating member; usually, the second drafting assembly is fixedly arranged on the movable assembly, and is fixed with the position of the movable assembly, the driving assembly directly drives the second rotating part to enable the second rotating part to synchronously move with the second drafting assembly and the movable assembly, so that the second rotating part moves, and the driving assembly is directly connected with the second rotating part, so that the moving distance of the second rotating part can be more accurately controlled; as the drive assembly, a hydraulic drive assembly may be selected;
a tension detection assembly configured to detect tension applied to the fiber rope; for example, a rope tension meter may be provided to detect the tension of the fiber rope; the model of the rope tension meter can be determined according to the tension of a drafting rope and the like, and can also be designed and customized according to the operation requirement of a pre-drafting device so as to be matched with the structure of the rope tension meter; alternatively, a torque sensor may be selected, which is provided on the rotation shaft of the second rotation member; optional tension sensors disposed on the rotation axis of the first rotation member and the rotation axis of the second rotation member;
the fiber rope is arranged on the first rotating component and the second rotating component, the tension of the fiber rope is adjusted by adjusting the distance between the first rotating component and the second rotating component, the part of the fiber rope, which is positioned outside the first rotating component, is in a free state, namely no external force is applied, so that no extra tension exists between the fiber rope and the first rotating component, the part of the fiber rope, which is positioned outside the second rotating component, is also in a free state, namely no external force is applied, so that no extra tension exists between the fiber rope and the second drafting component, the fiber rope is ensured to be only subjected to the tension of the first rotating component and the second rotating component to obtain the pre-drafting, and the control of the pre-drafting process is accurate. The fiber rope in a free state facilitates the recovery of recoverable deformations after being drafted.
As an alternative embodiment, the first drafting assembly further comprises: the first gearbox is connected with the first rotating part and used for transmitting power to the first rotating part; and the first motor is connected with the first gearbox and used for driving the first rotating component to rotate. The first rotatable part is usually cylindrical and arranged to rotate around its centre axis, during which rotation movement of the fibre rope is achieved, i.e. the entire fibre rope can be continuously drawn. The first motor is matched with the first gearbox to provide power for the rotation of the first rotating component. In order to achieve drafting of the fiber rope, the fiber rope may be wound around an outer surface of the first rotating member, and a relative position between the fiber rope and the outer surface may be fixed by a friction force between the fiber rope and the outer surface so that the fiber rope can move with rotation of the first rotating member. In order to make the position of the fiber rope more stable and reliable, the fiber rope can be continuously wound on the outer surface of the first rotating component for a plurality of times, the fiber rope is fixed on the surface of the first rotating component only by winding for a plurality of times, and the fiber rope moves synchronously with the first rotating component in the rotating process, for example, 2 times, 3 times, 4 times, 5 times, 6 times, 7 times, 8 times and the like, and the winding times are selected according to the diameter, the material, the surface friction force and the like of the first rotating component of the fiber rope for the purpose of proper winding strength and winding efficiency; it is generally preferred that the number of windings is 5-7. One winding usually means that the fibre rope is wound one turn on the first rotating part.
In an alternative embodiment, the first rotating member includes a first guide roller, and the first guide roller is provided with a rotating shaft, and rotates around the rotating shaft.
As an alternative embodiment, the first rotating member is provided with a first continuous groove on its surface. Usually, the first continuous groove is arranged on the outer surface of the first rotating component in a spiral shape to form a spiral continuous groove, so that the fiber rope can be arranged in the continuous groove, the position of the fiber rope on the surface of the rotating component is better stabilized, the contact area of the fiber rope and the surface of the first rotating component is increased, the friction force between the fiber rope and the first rotating component is increased, and the rope is ensured to obtain proper tension.
As an alternative, the surface of the first rotating member is provided with a rubber material to enhance the friction of its surface against the fiber rope. For example, a guide roller with a rubber surface material is selected as the first rotating member, or a rubber sleeve is arranged on the surface of the first rotating member, or a rubber pad is arranged in the first continuous groove, so that the shape of the guide roller is tightly matched with that of the continuous groove.
The rubber material can be ethylene propylene rubber, butadiene acrylonitrile rubber, styrene butadiene rubber or silicon rubber as an alternative embodiment, and ethylene propylene diene monomer is more preferable.
Further, as an optional embodiment, the hardness of the rubber material can be set to be 65-85 degrees on the shore; a more preferred embodiment is 75 degrees shore hardness.
In an alternative embodiment, the ratio of the diameter of the first rotating member to the diameter of the fiber rope is 30 to 40: 1. The diameter of the first rotating member is one of important factors influencing the pre-drafting effect of the fiber rope, if the diameter is too small, the fiber rope is prone to bending fatigue in the pre-drafting process, a macromolecular structure of the fiber rope is damaged to a certain extent, and the service life of the fiber rope subjected to the pre-drafting treatment is damaged, generally, the diameter of the first rotating member is set to be in direct relation with the diameter of the fiber rope, and the bending fatigue can be avoided within a certain range, for example, the ratio of the diameter of the first rotating member to the diameter of the fiber rope is greater than 20:1, for example, 30-40: 1 is an optional embodiment.
As an alternative embodiment, the second drafting assembly of the fiber rope pre-drafting device comprises: the second gearbox is connected with the second rotating part and used for transmitting power to the second rotating part; and the second motor is connected with the second gearbox and used for driving the second rotating part to rotate. The second rotating member is usually cylindrical and arranged to rotate around its centre axis, during which rotation movement of the fibre rope is achieved, i.e. the entire fibre rope can be continuously drawn. The second motor and the second gearbox are matched with each other to provide driving force for the rotation of the second rotating part. In order to arrange the fiber rope on the second rotating member to realize the drafting, the fiber rope may be wound on the outer surface thereof, and the relative position of the fiber rope and the outer surface is fixed by the friction force therebetween, so that the fiber rope can move forward along with the rotation of the second rotating member. In order to make the position of the fiber rope more stable and reliable, the fiber rope can be continuously wound on the outer surface of the second rotating component for a plurality of times, the fiber rope is fixed on the surface of the second rotating component only by winding for a plurality of times, and the fiber rope moves synchronously with the second rotating component in the rotating process of the fiber rope, for example, 2 times, 3 times, 4 times, 5 times, 6 times, 7 times, 8 times and the like, and the winding times are selected according to the diameter, the material, the surface friction force and the like of the second rotating component of the fiber rope for the purpose of proper winding strength and winding efficiency; it is generally preferred that the number of windings is 5-7. One winding usually means that the fibre rope is wound one turn on the second turning part.
In an alternative embodiment, the second rotating member includes a second guide roller, and the second guide roller is provided with a rotating shaft, and rotates around the rotating shaft.
As an alternative, the second rotating member is provided with a second continuous groove on its surface. The second continuous groove is arranged on the outer surface of the second rotating component in a spiral shape to form a spiral continuous groove, so that the fiber rope can be arranged in the continuous groove, the position of the fiber rope on the surface of the second rotating component is better stabilized, the contact area between the fiber rope and the surface of the second rotating component is increased, the friction force between the fiber rope and the second rotating component is increased, and the rope is ensured to obtain proper tension.
As an alternative, the second rotating member surface is provided with a rubber material to enhance the friction of its surface against the fibre rope. For example, a guide roller with a rubber material surface is selected as the second rotating member, or a rubber sleeve is arranged on the surface of the second rotating member, or a rubber pad is arranged in the second continuous groove, so that the shape of the guide roller is tightly matched with that of the continuous groove. The rubber material can be ethylene propylene rubber, butadiene acrylonitrile rubber, styrene butadiene rubber or silicon rubber as an alternative embodiment, and ethylene propylene diene monomer is more preferable. Further, as an optional embodiment, the hardness of the rubber material can be set to be 65-85 degrees on the shore; a more preferred embodiment is 75 degrees shore hardness.
In an alternative embodiment, the ratio of the diameter of the second rotating member to the diameter of the fiber rope is 30 to 40: 1. The diameter of the second rotating member is one of important factors influencing the pre-drafting effect of the fiber rope, if the diameter is too small, the fiber rope is prone to bending fatigue in the pre-drafting process, a macromolecular structure of the fiber rope is damaged to a certain extent, and the service life of the fiber rope subjected to the pre-drafting treatment is damaged, generally, the diameter of the second rotating member is set to be in direct relation with the diameter of the fiber rope, and the bending fatigue can be avoided within a certain range, for example, the ratio of the diameter of the second rotating member to the diameter of the fiber rope is greater than 20:1, for example, 30-40: 1 is an optional embodiment.
As an alternative embodiment, the hydraulic drive assembly comprises: the hydraulic plunger is fixedly connected with the second drafting assembly and is used for driving the second drafting assembly to move; the hydraulic cylinder is used for installing a hydraulic plunger, and the hydraulic plunger and the hydraulic cylinder are mutually matched in a sealing manner so as to enable the hydraulic plunger to move in the hydraulic cylinder; the hydraulic pump is used for providing pressure liquid for the hydraulic cylinder and providing hydraulic power; the motor is connected with the hydraulic pump and used for driving the hydraulic pump to work; and a liquid storage tank which is communicated with the hydraulic pump and is used for storing pressure liquid. In a preferred embodiment, the hydraulic plunger and the second rotating member of the second drafting unit have their rotating shafts arranged in the same plane and perpendicular to each other. Further, in a more preferred embodiment, the hydraulic plunger is disposed in the same plane as the second rotating member turning shaft and the first rotating member turning shaft, the first rotating member turning shaft and the second rotating member turning shaft are disposed in parallel with each other, and the hydraulic plunger is perpendicular to the first rotating member turning shaft and the second rotating member turning shaft.
As an alternative, the first drafting assembly and the second drafting assembly are arranged identically, so as to achieve better control over the synchronous rotation of the two. The first drafting unit is the same as the second drafting unit, which generally means that the components thereof are respectively the same, for example, the first rotating member and the second rotating member are the same, so as to achieve the same arrangement, obtain the same drafting force, and facilitate synchronous control. The fiber rope keeps the same speed in the process of moving along with the first rotating component and the second rotating component, so that the fiber rope is in a stretching state under proper tension, but is not enough for pre-drafting. Generally, the first rotating member and the second rotating member have the same structure, shape and material.
As an alternative, the direction of rotation of the first rotating member may be the same as or opposite to the direction of rotation of the second rotating member, and this direction of rotation is usually adjusted in relation to the way the fiber rope is wound on the first rotating member or the second rotating member to ensure that the fiber rope obtains a movement that is compatible with the pre-drafting needs.
Usually, the fiber rope pre-drafting device further comprises a control component, such as a variable frequency electric controller, an information processor and the like, for controlling the first drafting component, the second drafting component, the driving component and the tension detection component. For example, the variable frequency electric controller may control the rotation states of the first rotating member and the second rotating member, and control the driving unit to adjust the distance between the first rotating member and the second rotating member based on the tension information obtained by the tension detecting unit, thereby controlling the tension of the fiber rope so that the fiber rope obtains a set tension and realizing the pre-drafting of the fiber rope. Usually, the tension detection component monitors the tension of the fiber rope in real time, and the control component dynamically adjusts the distance between the first rotating component and the second rotating component in real time according to the real-time tension so as to maintain the tension obtained by the fiber rope within a set tension range. The first rotating part and the second rotating part keep synchronous rotation state, the fiber ropes keep uniform movement, continuous pre-drafting of the fiber ropes is achieved, and therefore pre-drafting of the fiber ropes with any length can be achieved.
In another aspect, some embodiments disclose a method for pre-drafting a fiber rope, according to which a fiber rope pre-drafting device performs a pre-drafting process on the fiber rope, the method specifically including:
(1) arranging a fiber rope to be wound on the first rotating part and the second rotating part in sequence; usually, the fiber rope is wound on the first rotating part for a plurality of times, and then the fiber rope is further wound on the second rotating part for a plurality of times, so that the fiber rope obtains enough friction force with the surface of the rotating part, and the fiber rope obtains uniform movement and keeps a stable state in the synchronous rotation process of the first rotating part and the second rotating part; synchronous rotation generally refers to simultaneous rotation and having the same linear velocity; the fiber rope wound on the first rotating component and the second rotating component, the parts of the fiber rope positioned outside the first rotating component and the second rotating component are in a free state, namely, the fiber rope outside the first rotating component is not subjected to external force for changing the tension of the fiber rope, and the fiber rope outside the second rotating component is not subjected to external force for changing the tension of the fiber rope;
(2) setting the drafting tension of the fiber rope; setting the pre-drafting tension of the fiber rope so that the control component further instructs the driving component to control the movement of the second rotating component according to the actually measured tension of the fiber rope;
(3) starting the first rotating part and the second rotating part to enable the fiber rope to be in a tensioned state and keep moving; starting the first rotating part and the second rotating part to synchronously rotate, obtaining the power of uniform movement by the fiber rope, and keeping the fiber rope between the first rotating part and the second rotating part in a uniform linear motion state;
(4) the tension of the fiber rope is detected, and according to the detected tension, the distance between the first rotating component and the second rotating component is adjusted through the driving assembly, so that the fiber rope obtains the tension equivalent to the set drafting tension, and the fiber rope is drafted in advance.
The pre-drafting process is continuously carried out until one-time pre-drafting of the whole fiber rope is finished, and the process can be repeated for multiple times if multiple pre-drafting is required.
The technical details are further illustrated in the following examples.
Example 1
Fig. 1 is a schematic view of the composition of a fiber rope pre-drafting apparatus disclosed in example 1.
In embodiment 1, the device platform 100 is horizontally arranged, and includes a horizontally arranged plane for arranging other components, wherein the first drafting assembly 1 is arranged on the left side plane of the device platform 100, the second drafting assembly 2 is arranged on the right side of the first drafting assembly 1, the second drafting assembly 2 is arranged and installed on the movable assembly 3, and the movable assembly 3 is arranged on the device platform 100 and can freely move on the device platform 100; a driving component 4 is arranged at the right side of the second drafting component 2, and a tension detecting component 5 is a torsion sensor and is arranged on a rotating shaft of the second rotating component in a matching way so as to detect the tension applied to the fiber rope;
the first drafting assembly 1 comprises a first rotating part 11 which is arranged on the plane of the device platform 100 through a base, a first gearbox 12 which is connected with the first rotating part 11 and transmits rotating power to the first rotating part, and a first motor 13 which is arranged on the plane of the device platform 100 and connected with the first gearbox 12;
the second drafting assembly 2 comprises a second rotating part 21 which is arranged on the movable assembly 3 through a base, a second gearbox 22 is arranged and connected with the second rotating part 21 to provide rotating power for the second rotating part, and a second motor 23 is arranged and arranged on the movable assembly 3 and connected with the second gearbox 22; the second rotating part 21 and the first rotating part 11 are horizontally arranged, and the rotating shaft of the first rotating part 11 and the rotating shaft of the second rotating part 21 are positioned in the same plane and are parallel to each other;
the movable assembly 3 comprises a sliding platform 31, a sliding rail 32 is arranged at the bottom of the sliding platform 31 and matched with the sliding platform, the sliding rail 32 is arranged on the device platform 100, and the extending direction of the sliding rail 32 is perpendicular to the axial direction of the second rotating part 21; the sliding platform 31 has a plane suitable for arranging the second drafting assembly 2, and the sliding platform 31 can freely slide along the extending direction of the slide rail 32.
When the fiber rope 101 is subjected to pre-drafting operation, the fiber rope 101 is sequentially wound on the first rotating part 11 and then wound on the second rotating part 21, two end parts of the fiber rope 101 are kept in a free state, the part of the fiber rope 101, which is positioned between the first rotating part 11 and the second rotating part 21, is kept in a stretching state, the first rotating part 11 and the second rotating part 21 are started to synchronously rotate, the stretched fiber rope can be in a uniform-speed moving state, the driving assembly 4 can apply pre-drafting tension to the fiber rope 101 by adjusting the distance between the driving assembly 4 and the first rotating part 11 by moving the second rotating part 21, and the pre-drafting operation is performed, and in the pre-drafting process, the tension detecting assembly 5 monitors the real-time tension of the rope in real time so as to control the operation of the driving assembly 4.
Example 2
Fig. 2 is a schematic view of the arrangement of the first rotating member and the second rotating member disclosed in embodiment 2.
In embodiment 2, the first rotating member 11 includes a first rotating shaft 111 and a cylindrical first guide roller 112 fixedly connected thereto, a first continuous groove 113 is provided on a surface of the first guide roller 112, and the first continuous groove 113 is distributed on the surface of the first guide roller 112 in a spiral shape; the first rotation member 11 is arranged to rotate clockwise, as indicated by R in the figure1The first rotational direction shown;
the second rotating part 21 comprises a second rotating shaft 211 and a cylindrical second guide roller 212 fixedly connected with the second rotating shaft, the surface of the second guide roller 112 is provided with a second continuous groove 213, and the second continuous groove 213 is distributed on the surface of the second guide roller 212 in a spiral shape; the second rotating member 21 is arranged to rotate in a counterclockwise direction, as indicated by R in the figure2The second rotational direction;
the first rotating shaft 111 and the second rotating shaft 211 are arranged in parallel in the same plane, and the distance between the two is L, i.e. L can be considered as the distance between the fiber rope and the first rotating member 11 and the second rotating member 21, i.e. the rope spacing L; the second rotating shaft 211 is movable in the plane to change the rope pitch L;
one end of the fiber rope 101 is kept in a free state, and the other end is continuously wound in the first continuous groove 113 seven times in a clockwise direction and then continuously wound in the second continuous groove 213 seven times in a counterclockwise direction, after which the end of the fiber rope 101 is in a free state; when the portion of the fiber rope between the first rotating member 11 and the second rotating member 21 is in a stretched state, the extending direction of the fiber rope coincides with the moving direction of the fiber rope and also coincides with the moving direction of the second rotating shaft 211.
During the pre-drafting process, the first rotating member 11 rotates at R1Rotated in the direction R, the second rotating member 212The direction of the rotation is changed, and the fiber rope 101 moves in the direction indicated by the dotted arrow in the figure, thereby realizing the continuous pre-drafting of the fiber rope.
Example 3
Fig. 3 is a schematic view of the composition of a fiber rope pre-drafting device disclosed in example 3.
In embodiment 3, the device platform 100 is horizontally disposed, and includes a horizontally disposed plane for disposing other components, wherein the first drafting component is disposed on the left side plane of the device platform 100, the second drafting component is disposed on the right side of the first drafting component, the second drafting component is disposed and mounted on the movable component, and the movable component is disposed on the device platform 100 and can freely move on the device platform 100; a driving component 4 is arranged at the right side of the second drafting component, and a tension detecting component 5 is a tension sensor and is arranged on the rotating shaft of the first rotating component and the rotating shaft of the second rotating component in a matching way so as to detect the tension applied to the fiber rope;
the first drafting assembly comprises a first rotating part, the first rotating part is arranged on the plane of the device platform 100 through a base, a first gearbox is arranged and connected with the first rotating part to transmit rotating power to the first rotating part, and a first motor 13 is arranged and arranged on the plane of the device platform 100 and connected with the first gearbox;
the second drafting assembly comprises a second rotating part which is arranged on the movable assembly through the base, a second gearbox is arranged and connected with the second rotating part and used for transmitting rotating power to the second rotating part, and a second motor 23 is arranged and arranged on the movable assembly and connected with the second gearbox; the second rotating part and the first rotating part are horizontally arranged, and the rotating shaft of the first rotating part and the rotating shaft of the second rotating part are positioned in the same plane and are parallel to each other;
the movable assembly comprises a movable platform 33, a rolling wheel 34 matched with the movable platform 33 is arranged at the bottom of the movable platform 33, a rolling track 102 is arranged on the device platform 100, and the extending direction of the rolling track 102 is vertical to the axial direction of the second rotating part; the rolling wheels 34 are fittingly arranged in the rolling track 102 and can freely roll in the extending direction thereof.
The control component 8 is arranged and connected with the first motor 13, the second motor 23 and the driving component 4 respectively;
when the fiber rope 101 is subjected to pre-drafting operation, the fiber rope 101 is sequentially wound on a first rotating part and then wound on a second rotating part, two end parts of the fiber rope 101 are kept in a free state, the free end of the fiber rope positioned outside the first rotating part can be freely placed in a second rope storage basket 7, the free end of the fiber rope positioned outside the second rotating part can be freely placed in a first rope storage basket 6, the part of the fiber rope 101 positioned between the first rotating part and the second rotating part is kept in a stretching state, the first rotating part and the second rotating part are started to synchronously rotate, the stretched fiber rope can be in a uniform-speed moving state, the driving assembly 4 adjusts the distance between the fiber rope and the first rotating part by moving the second rotating part, namely, pre-drafting tension can be applied to the fiber rope 101 to perform pre-drafting operation, during the pre-drafting process, the tension detection component 5 monitors the rope tension in real time, so that the control component 8 controls the driving component 4 according to the real-time tension information.
The utility model provides a fiber rope drafting arrangement in advance, through the distance between adjustment first rotating member and the second rotating member, realize the tension control to fiber rope, and then realize drafting in advance under setting for the tensile force, the rotation through first rotating member and second rotating member drives fiber rope continuous movement simultaneously, make fiber rope obtain continuous pre-drafting in the removal, can realize the drafting in advance to arbitrary length fiber rope, and can accurate control and set for the draft pulling force in advance, good practical value has in fiber rope drafting arrangement in advance, wide application prospect has in fiber rope field of making.
The technical solutions and the technical details disclosed in the embodiments of the present application are only examples to illustrate the inventive concept of the present application, and do not constitute limitations on the technical solutions of the present application, and all the inventive changes, substitutions, or combinations that are made to the technical details disclosed in the present application without creativity are the same as the inventive concept of the present application and are within the protection scope of the claims of the present application.
Claims (10)
1. Fiber rope is draft device in advance, characterized in that, this draft device in advance includes:
a device platform;
the first drafting assembly is arranged and mounted on the device platform and comprises at least one first rotating part for drafting the fiber rope, and a spiral first continuous groove is formed in the outer surface of the first rotating part;
a movable assembly disposed on the device platform, configured to be movable on the device platform;
the second drafting assembly is arranged and mounted on the movable assembly and comprises at least one second rotating part for drafting the fiber rope, and a spiral second continuous groove is formed in the outer surface of the second rotating part; the second rotating part and the first rotating part are arranged in parallel, and the distance between the second rotating part and the first rotating part is adjustable;
the driving assembly is connected with the second rotating component and used for driving the second rotating component to move and adjusting the distance between the driving assembly and the first rotating component;
a tension detection assembly configured to detect tension applied to the fiber rope;
the fiber rope is arranged to be sequentially wound in the first continuous groove on the first rotating component and the second continuous groove on the second rotating component, the part, located outside the first rotating component, of the fiber rope is in a free state, the part, located outside the second rotating component, of the fiber rope is also in a free state, and the tension of the fiber rope located between the first rotating component and the second rotating component is adjusted by adjusting the distance between the first rotating component and the second rotating component, so that the fiber rope is pre-drafted.
2. A fiber rope pre-drafting apparatus as claimed in claim 1, wherein the first drafting assembly further comprises:
the first gearbox is connected with the first rotating part and used for transmitting power to the first rotating part;
and the first motor is connected with the first gearbox and used for driving the first rotating component to rotate.
3. A fiber rope pre-drafting apparatus as claimed in claim 1, wherein the second drafting assembly further comprises:
the second gearbox is connected with the second rotating part and used for transmitting power to the second rotating part;
and the second motor is arranged and connected with the second gearbox and used for driving the second rotating part to rotate.
4. A fiber rope pre-drafting apparatus according to claim 1, wherein a surface of the first rotating member is provided with a rubber material.
5. A fiber rope pre-drafting apparatus according to claim 1, wherein a surface of the second rotating member is provided with a rubber material.
6. A fiber rope pre-drafting arrangement according to claim 1, wherein the first continuous groove surface is provided as a rubber material.
7. A fibre rope pre-drafting arrangement according to claim 1, wherein the second continuous groove surface is provided as a rubber material.
8. The fiber rope pre-draft device according to claim 2, wherein a ratio of a diameter of the first rotating member to a diameter of the fiber rope is 30 to 40: 1.
9. The fiber rope pre-draft device according to claim 3, wherein a ratio of a diameter of the second rotating member to a diameter of the fiber rope is 30 to 40: 1.
10. A method for pre-drafting a fiber rope, characterized in that, in the process of pre-drafting the fiber rope by the fiber rope pre-drafting device according to any one of claims 1 to 9, the method specifically comprises:
(1) arranging a fiber rope to be wound on the first rotating part and the second rotating part in sequence;
(2) setting the drafting tension of the fiber rope;
(3) starting the first rotating component and the second rotating component to enable the fiber rope to be in a tensioned state and keep moving;
(4) and detecting the tension of the fiber rope, and controlling the driving assembly to adjust the distance between the first rotating part and the second rotating part according to the detected tension so that the fiber rope obtains the tension equivalent to the set drafting tension, thereby realizing the continuous pre-drafting of the fiber rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011365059.2A CN112663366B (en) | 2020-11-27 | 2020-11-27 | Fiber rope pre-drafting device and pre-drafting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011365059.2A CN112663366B (en) | 2020-11-27 | 2020-11-27 | Fiber rope pre-drafting device and pre-drafting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112663366A CN112663366A (en) | 2021-04-16 |
| CN112663366B true CN112663366B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011365059.2A Active CN112663366B (en) | 2020-11-27 | 2020-11-27 | Fiber rope pre-drafting device and pre-drafting method |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4309474C1 (en) * | 1993-03-24 | 1994-05-19 | Saurer Allma Gmbh | Tension control on cabling machine with two-for-one twisting spindles - has roller pairs in enclosed housing which can be threaded up by suction generated through an air gun |
| CN107130451A (en) * | 2017-05-15 | 2017-09-05 | 江苏星火特钢有限公司 | High speed tubular stranding machine with identical tension automaton |
| CN110219189A (en) * | 2019-05-24 | 2019-09-10 | 山东鲁普科技有限公司 | A kind of fibrecord annealing device and method |
| CN210314634U (en) * | 2019-07-24 | 2020-04-14 | 龙游龙纤新材料有限公司 | Pre-drafting machine for producing high-strength high-modulus polyethylene fibers |
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- 2020-11-27 CN CN202011365059.2A patent/CN112663366B/en active Active
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Address after: 271000 NO.67, leigushi street, Taishan District, Tai'an City, Shandong Province Patentee after: SHANDONG ROPE TECHNOLOGY Co.,Ltd. Country or region after: China Patentee after: Qingdao Marine Science and Technology Center Patentee after: Qingdao Rupert rope net Research Institute Co.,Ltd. Address before: 271000 NO.67, leigushi street, Taishan District, Tai'an City, Shandong Province Patentee before: SHANDONG ROPE TECHNOLOGY Co.,Ltd. Country or region before: China Patentee before: QINGDAO NATIONAL LABORATORY FOR MARINE SCIENCE AND TECHNOLOGY DEVELOPMENT CENTER Patentee before: Qingdao Rupert rope net Research Institute Co.,Ltd. |