CN113186744A - Ultra-fine tungsten wire rope and preparation method and application thereof - Google Patents
Ultra-fine tungsten wire rope and preparation method and application thereof Download PDFInfo
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- CN113186744A CN113186744A CN202110590517.0A CN202110590517A CN113186744A CN 113186744 A CN113186744 A CN 113186744A CN 202110590517 A CN202110590517 A CN 202110590517A CN 113186744 A CN113186744 A CN 113186744A
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 123
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 238000004804 winding Methods 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/1012—Rope or cable structures characterised by their internal structure
- D07B2201/102—Rope or cable structures characterised by their internal structure including a core
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/1028—Rope or cable structures characterised by the number of strands
- D07B2201/1032—Rope or cable structures characterised by the number of strands three to eight strands respectively forming a single layer
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3021—Metals
- D07B2205/3082—Tungsten (W)
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- Ropes Or Cables (AREA)
Abstract
The invention discloses an ultra-fine tungsten wire rope and a preparation method and application thereof, wherein the ultra-fine tungsten wire rope comprises a central strand and an outer wrapping strand, wherein the outer wrapping strand comprises a first outer wrapping strand which is pre-deformed and has a spiral structure and torque and a second outer wrapping strand which is directly wound by protofilaments; and the plurality of first outer wrapping strands or the plurality of first outer wrapping strands and the plurality of second outer wrapping strands are stranded on the periphery of the central strand to form the tungsten wire rope. According to the invention, the tungsten wire rope structure is changed by controlling the pitch length of the central strand, the outer wrapping strand and the tungsten wire rope and increasing the pre-deformation process of the first outer wrapping strand, so that the feasibility of the preparation of the ultra-fine tungsten wire rope is realized, the transmission control capability of the high-precision high-tension precision robot arm in the medical industry is further realized, and the precision of the transmission control of the robot arm is ensured.
Description
Technical Field
The invention relates to the technical field of tungsten wire ropes, in particular to an ultra-fine tungsten wire rope and a preparation method and application thereof.
Background
With the development of precision medical instruments at home and abroad, various use requirements of a metal wire rope transmission device in a mechanical arm for composite medical operations are continuously increased, and a thicker traditional steel wire rope (the diameter is more than 1mm) is adopted for transmission in the past. On the one hand, the service life is low; on the other hand, the rope body is thick, so that the precision of the repeated position is low during transmission, and the industrial requirements cannot be met at present. In addition, under the condition of ensuring toughness and tension, the traditional tungsten wire rope is thicker and has the minimum bending diameter of 30mm, and when the diameter is smaller than 30mm, the traditional tungsten wire rope can generate plastic deformation, so that the rope body is limited in bending use, the traditional tungsten wire rope is also applied to a metal wire rope transmission device in a precision robot arm, the transmission precision is low, and the industrial requirement cannot be met; more importantly, the bottleneck of the production of the superfine tungsten wire rope cannot be broken through at home at present.
Disclosure of Invention
In view of the above-mentioned drawbacks or shortcomings, an object of the present invention is to provide an ultra-fine tungsten wire rope, a method for preparing the same, and applications thereof.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
an ultra-fine tungsten wire rope comprises a central strand and an outer wrapping strand, wherein the outer wrapping strand comprises a first outer wrapping strand which is pre-deformed and has a spiral structure and torque, and a second outer wrapping strand which is directly wound by protofilaments; and the plurality of first outer wrapping strands or the plurality of first outer wrapping strands and the plurality of second outer wrapping strands are stranded on the periphery of the central strand to form the tungsten wire rope.
The central strand is formed by winding 7 central strand protofilaments; the first outer wrapping strand and the second outer wrapping strand are wound by 7 outer wrapping strand protofilaments.
The diameter of the central strand is 0.083-0.135 mm.
The pitch of the pre-deformed first wrap strand is 2.88-3.52 mm.
The central strand is wound into a first tungsten wire rope through 6 pre-deformed first wrapping strands with the same structure.
The diameter of the first tungsten wire rope is 0.36 mm.
And 6 second outer wrapping strands with the same structure are twisted on the periphery of the central strand to form an outer wrapping strand layer, and 12 pre-deformed first outer wrapping strands with the same structure are wound on the periphery of the outer wrapping strand layer to form a second tungsten wire rope.
The diameter of the second tungsten wire rope is 0.36 mm.
A preparation method of an ultra-fine tungsten wire rope comprises the following steps:
1) winding a plurality of protofilaments into a central strand or an outer wrapping strand;
2) pre-deforming a first outer wrapping strand in the outer wrapping strands in advance to form a pre-deformed outer wrapping strand with a spiral structure and torque;
3) winding a plurality of first wrapping strands around the periphery of the central strand by taking the central strand as the center to form a tungsten wire rope; or the plurality of second outer wrapping strands are wound around the periphery of the central strand by taking the central strand as the center to form an outer wrapping strand layer, and finally the plurality of pre-deformed first outer wrapping strands are wound around the periphery of the outer wrapping strand layer to form the tungsten wire rope.
An application of ultra-fine tungsten wire rope in the transmission control of the medical apparatus high-precision high-tension precision robot arm.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an ultra-fine tungsten wire rope, which realizes a pre-twisting function through a first wrapping strand with a thread pitch structure and torque, can better realize point-to-point contact between a tungsten wire rope strand and a strand in a winding process so as to increase a contact surface and friction force, effectively ensure that each strand of tungsten wire is uniformly and more tightly stressed, reduce the diameter of the tungsten wire rope relative to the diameter of the traditional tungsten wire rope, and greatly improve the toughness and the tension of the tungsten wire rope; the periphery of the central strand is wound with a plurality of predeformed outer wrapping strands to form the ultra-fine tungsten wire rope with the special structure, and compared with the traditional tungsten wire rope with the same specification, the ultra-fine tungsten wire rope with the special structure has the advantages of smaller diameter, better tension and flexibility.
The invention provides a preparation method of an ultra-fine tungsten wire rope, which is characterized in that an outer wrapping wire is pre-deformed before twisting the tungsten wire rope to form a spiral structure and torque; each pre-deformed tungsten wire rope is effectively ensured to be uniformly stressed and wound more tightly, so that the diameter of the tungsten wire rope is smaller, and the structure innovation enables the tensile force and the flexibility of the tungsten wire rope to be improved simultaneously; meanwhile, the pitch length of the central strand, the second outer wrapping strand and the pre-deformed first outer wrapping strand are controlled in the primary twisting and winding process, so that the preparation of the ultra-fine tungsten wire rope (the diameter of the rope is 0.36mm) is realized, the production bottleneck of the domestic fine tungsten wire rope is broken through, and the industrial blank is filled.
The ultra-fine tungsten wire rope provided by the invention is applied to the transmission control of the medical instrument high-precision high-tension precision robot arm; the tungsten wire rope has the characteristics of corrosion resistance and high temperature resistance, so that the service life of the transmission of the robot arm is prolonged; more importantly, the diameter of the ultra-fine tungsten wire rope is far smaller than the diameter of a traditional steel wire rope (the diameter is larger than 1mm) and the diameter of a traditional tungsten wire rope (the diameter is larger than 1mm), and the ultra-fine tungsten wire rope is softer and has smaller minimum bending diameter, so that the ultra-fine tungsten wire rope has higher repeated position precision, and can meet the precision requirement of transmission control of a precision robot arm.
Drawings
FIG. 1 is a schematic cross-sectional view of an ultra-fine tungsten wire rope according to the present invention;
FIG. 2 is a schematic cross-sectional view of the ultra-fine tungsten wire rope according to the present invention.
In the figure, 1.1-wrapping the strand; 1.2 — central strand; 2-the central strand; 3.1 — first over-wrap strand; 3.2-second outer wrap strand; 4-a first tungsten wire rope; 5-second tungsten wire rope.
Detailed Description
The present invention will now be described in detail with reference to the drawings, wherein the described embodiments are only some, but not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
Example one
As shown in fig. 1 and 2, the present invention provides an ultra-fine tungsten wire rope, comprising a central strand 2 and an outer wrapping strand, wherein the outer wrapping strand comprises a first outer wrapping strand 3.1 which is pre-deformed and has a spiral structure and torque, and a second outer wrapping strand 3.2 which is directly wound by a precursor; the plurality of first outer wrapping strands 3.1 or the plurality of first outer wrapping strands 3.1 and the plurality of second outer wrapping strands 3.2 are twisted on the periphery of the central strand 2 to form a tungsten wire rope.
Based on the above embodiment, the central strand 2 is made by winding 7 central strands 1.2; the diameter of the central strand 2 is 0.083-0.135 mm.
In the invention, the first wrapping strand 3.1 is pre-deformed before winding to form a spiral structure pre-deformed wrapping strand with the thread pitch of 2.88-3.25 mm, so that the pre-twisting function is realized, point-to-point contact between strands in the winding process can be better realized, the contact surface is increased, the friction force is increased, uniform and tighter stress of each strand is effectively ensured, the diameter of the ultra-fine tungsten wire rope is reduced compared with that of the traditional tungsten wire rope, and the toughness and the tension of the tungsten wire rope are greatly improved. Furthermore, the filaments of the ultra-fine tungsten wire rope (i.e. the outer filament 1.1 and the central filament 1.2) can be selected from filaments with a thinner diameter, and preferably, the filaments of the ultra-fine tungsten wire rope have a diameter of 0.025mm to 0.042 mm.
Based on the above example, the pitch of the central strand 2 is 0.56-0.945 mm; the diameter is 0.083-0.135 mm.
Preferably, the second outer wrapping strand 3.2 is formed by directly winding 7 outer wrapping strands 1.1.
In the present invention, as shown in fig. 1, the central strand 2 is wound into a first tungsten wire rope 4 with a specification of 6 × 7+ IWSC by 6 first outer wrapping strands 3.1 which are pre-deformed and have the same structure; preferably, the diameter of the first tungsten wire rope 4 is 0.36 mm.
In the invention, as shown in fig. 2, 6 second outer wrapping strands 3.2 with the same structure are twisted on the periphery of the central strand 2, and 12 first outer wrapping strands 3.1 which are pre-deformed and have the same structure are wound on the periphery of the 3.2 layers of the second outer wrapping strands to form a second tungsten wire rope 5 with the specification of 18 × 7+ IWSC; preferably, the diameter of the second tungsten wire rope 5 is 0.36 mm.
The tungsten wire rope is mainly of a traditional 19 x 7 structure, has a diameter larger than 1.0mm, and is mainly suitable for preparing a single crystal silicon rod by a Czochralski method in the photovoltaic industry. The diameter of the ultra-fine tungsten wire rope is less than 1.0mm, the minimum diameter of the tungsten wire rope can reach 0.36mm, the production bottleneck of the domestic fine tungsten wire rope is broken through, and the blank of the industry is filled. Furthermore, the tungsten wire rope has the characteristics of corrosion resistance and high temperature resistance.
Experimental data table one:
example two
A preparation method of an ultra-fine tungsten wire rope comprises the following steps: 1) winding a plurality of protofilaments into a central strand 2 or an outer wrapping strand;
2) pre-deforming a first outer wrapping strand 3.1 in the outer wrapping strands in advance to form a pre-deformed outer wrapping strand with a spiral structure and torque; 3) winding a plurality of first wrapping strands 3.1 around the center strand 2 by taking the center strand 2 as the center to form a tungsten wire rope; or the second outer wrapping strand 3.2 is wound around the periphery of the central strand 2 by taking the central strand 2 as the center to form an outer wrapping strand layer, and finally the periphery of the outer wrapping strand layer is wound with the pre-deformed first outer wrapping strand 3.1 to form the tungsten wire rope.
Further, in step 3), a plurality of outer wrapping strand layers are arranged on the periphery of the central strand 2, the first outer wrapping strand 3.1 and the second outer wrapping strand 3.2 on the periphery of the central strand 2 can be wound on the outer side of the central strand 2 alternately to increase the tensile force of the tungsten wire rope, and the outer wrapping strand layer structure on the outer side of the central strand 2 includes, but is not limited to, the above structures; compared with the traditional tungsten wire rope with the same specification, the ultra-fine tungsten wire rope has small diameter, so that the tungsten wire rope is thinner, and the tensile force and flexibility effect are improved.
Wherein, the winding pitch of the central strand 2 is 0.56 mm-0.945 mm, and the diameter thereof is 0.083-0.135 mm; the winding pitch of the first wrapping strand 3.1 is 2.88-3.52 mm, and the diameter of the first wrapping strand is 0.075-0.126 mm. Exemplarily, a second tungsten wire rope 5 of the gauge 18 x 7+ IWSC, wherein the pitch of the central strand 2 is 0.56mm and the diameter is 0.083 mm; the winding pitch of the first wrapping strand 3.1 is 2.88mm, and the diameter is 0.075 mm; a first tungsten wire rope 4 of gauge 6 x 7+ IWSC, wherein the pitch of the central strand 2 is 0.945mm, the diameter being 0.135 mm; the first wrapping strand 3.1 has a winding pitch of 3.52mm and a diameter of 0.126 mm. The diameter of the central strand 2 in the tungsten wire rope is 1.1 times of that of the outer wrapping strand; further improving the tension of the ultra-fine tungsten wire rope. It should be noted that, in the winding preparation process of the tungsten wire rope, the diameter of the tungsten wire rope actually produced due to the winding stress is smaller than that of the theoretical tungsten wire rope.
In the preparation process of the tungsten wire rope, the first wrapping strand 3.1 is added for predeformation to realize a pretwisting function, so that the wrapping strand has torque, the tungsten wire rope is effectively ensured to be uniformly stressed and more compact before twisting, the diameter of the tungsten wire rope is reduced compared with that of the traditional tungsten wire rope with the same specification (under the condition that the number of strands and the thread pitch are the same), the toughness and the tension of the tungsten wire rope are greatly improved, and the tension and the flexibility of the ultra-fine tungsten wire rope are improved; providing conditions for realizing the ultra-fine tungsten wire rope, controlling the pitch length of the central strand 2, the outer wrapping strand and the tungsten wire rope in the winding preparation process, and selecting the monofilaments (namely the outer wrapping protofilament 1.1 and the central protofilament 1.2) in the tungsten wire rope with the diameter of 0.025-0.042 mm; realizing the preparation of the ultra-fine tungsten wire rope (the diameter of the rope is 0.36 mm).
Experimental data table two:
therefore, the ultra-fine tungsten wire rope with the special structure adopts two winding structures of 18 × 7+1WSC and 6 × 7+1WSC to replace the traditional two structures of 19 × 7 and 7 × 7, the toughness and the tension of the rope body are improved by changing the diameter size of the central strand 2, the thread pitch of the two traditional winding structures is increased (the thread pitch is increased to 10-14 times of the diameter of the rope), and the outer wrapping strand is subjected to pre-deformation spiral deformation before winding. The structural innovation simultaneously improves the tensile force and the flexibility of the tungsten wire rope with the existing structure, and simultaneously, the monofilaments (namely the outer coated protofilament 1.1 and the central protofilament 1.2) of the tungsten wire rope can be selected from protofilaments with smaller diameters (the diameter is 0.025mm-0.042mm), so that the preparation of the ultra-fine tungsten wire rope (the diameter of the rope is 0.36mm) is realized, the production bottleneck of the domestic fine tungsten wire rope is broken through, and the industrial blank is filled; because the selected material is tungsten, the invention has the characteristics of corrosion resistance and high temperature resistance.
EXAMPLE III
The application of the ultra-fine tungsten wire rope in the transmission control of the medical instrument high-precision high-tension precision robot arm is provided. The tungsten wire rope has the characteristics of corrosion resistance and high temperature resistance, so that the service life of the transmission of the robot arm is prolonged; more importantly, the preparation method of the ultra-fine tungsten wire rope provided by the invention realizes the preparation of the ultra-fine tungsten wire rope (the diameter of the rope is 0.36mm), the diameter of the ultra-fine tungsten wire rope is far smaller than that of the traditional steel wire rope (the diameter is more than 1mm), and the ultra-fine tungsten wire rope is softer and has higher repeated position precision because the thinner minimum bending diameter is smaller, so that the ultra-fine tungsten wire rope can meet the precision requirement of the transmission control of the arm of a precision robot, and the tension and the flexibility of the ultra-fine tungsten wire rope are far higher than those of the traditional steel wire rope.
The invention realizes the high precision, excellent tensile resistance and flexibility, corrosion resistance and high temperature resistance of the transmission control of the high-precision high-tension precision robot arm in the medical industry, and greatly prolongs the service life of the metal wire rope transmission device in the mechanical arm.
The ultra-fine tungsten wire rope manufactured by the method can be widely applied to the fields of precision robots, photovoltaic solar energy, high-temperature vacuum industry transmission systems and bearing systems by virtue of the ultra-fine structure, excellent tensile resistance and excellent flexibility.
It will be appreciated by those skilled in the art that the above embodiments are merely preferred embodiments of the invention, and thus, modifications and variations may be made in the invention by those skilled in the art, which will embody the principles of the invention and achieve the objects and objectives of the invention while remaining within the scope of the invention.
Claims (10)
1. The ultra-fine tungsten wire rope is characterized by comprising a central strand (2) and an outer wrapping strand, wherein the outer wrapping strand comprises a first outer wrapping strand (3.1) which is pre-deformed and has a spiral structure and torque, and a second outer wrapping strand (3.2) which is directly wound by protofilaments; the plurality of first outer wrapping strands (3.1) or the plurality of first outer wrapping strands (3.1) and second outer wrapping strands (3.2) are stranded on the periphery of the central strand (2) to form a tungsten wire rope.
2. The ultra fine tungsten cord according to claim 1, characterized in that the central strand (2) is wound from 7 central strand strands (1.2); the first outer wrapping strand (3.1) and the second outer wrapping strand (3.2) are formed by winding 7 outer wrapping strand protofilaments (1.1).
3. The ultra fine tungsten wire rope according to claim 1, characterized in that the diameter of the central strand (2) is 0.083-0.135 mm.
4. The ultra fine tungsten wire rope according to claim 1, characterized in that the pre-deformed pitch of the first sheath strand (3.1) is 2.88-3.52 mm.
5. The ultra fine tungsten wire rope according to claim 1, characterized in that the central strand (2) is wound into a first tungsten wire rope (4) by 6 first outer wrapping strands (3.1) of identical structure that are pre-deformed.
6. The ultra fine tungsten wire rope according to claim 5, wherein the diameter of the first tungsten wire rope (4) is 0.36 mm.
7. The ultra-fine tungsten wire rope according to claim 1, characterized in that 6 second sheath strands (3.2) of the same structure are twisted around the periphery of the central strand (2) to form a sheath strand layer, and 12 first sheath strands (3.1) of the same structure are wound around the periphery of the sheath strand layer to form a second tungsten wire rope (5).
8. The ultra-fine tungsten wire rope according to claim 7, wherein the diameter of the second tungsten wire rope (5) is 0.36 mm.
9. The method for producing the ultra-fine tungsten wire rope according to claim 1, comprising the steps of:
1) winding a plurality of protofilaments into a central strand (2) or an outer wrapping strand;
2) pre-deforming a first outer wrapping strand (3.1) in the outer wrapping strands in advance to form a pre-deformed outer wrapping strand with a spiral structure and torque;
3) winding a plurality of first wrapping strands (3.1) around the center strand (2) by taking the center strand (2) as the center to form a tungsten wire rope; or a plurality of second outer wrapping strands (3.2) are wound around the periphery of the central strand (2) by taking the central strand (2) as the center to form an outer wrapping strand layer, and finally a plurality of pre-deformed first outer wrapping strands (3.1) are wound around the periphery of the outer wrapping strand layer to form the tungsten wire rope.
10. Use of the ultra fine tungsten wire rope according to any one of claims 1 to 8 for high precision high tension precision robotic arm drive control of medical devices.
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| CN214831474U (en) * | 2021-05-28 | 2021-11-23 | 宝鸡志普有色金属加工有限公司 | Ultra-fine tungsten wire rope |
-
2021
- 2021-05-28 CN CN202110590517.0A patent/CN113186744A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092830A (en) * | 1993-03-23 | 1994-09-28 | 村田机械株式会社 | Braider |
| CN104514160A (en) * | 2013-09-28 | 2015-04-15 | 泰安鲁普耐特塑料有限公司 | Preparation method of superfine fiber rope |
| CN105040700A (en) * | 2015-08-13 | 2015-11-11 | 上海勘测设计研究院有限公司 | Equipment for removing sediments in small-diameter pipe pile and application method thereof |
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