Preparation process for preparing steel wire rope by utilizing macromolecular industrial filaments

Abstract

The invention discloses a preparation process for preparing a steel wire rope by using high-molecular industrial filaments, the steel wire rope comprises a rope core and a plurality of rope strands, the plurality of rope strands are wound on the outer surface of the rope core, each rope strand comprises a center wire, a plurality of inner layer wires and outer layer wires, the plurality of inner layer wires are wound on the outer surface of the center wire to form an inner core, and the outer layer wires are wound on the outer surface of the center wire. The production process of the steel wire rope comprises the following steps: step 1, immersing the filaments in oil and twisting the filaments into yarn counts; 2, configuring yarn counts, and twisting the yarn counts into a rope core; thirdly, surface treatment is conducted on the wire rod through pickling equipment; 4, roughly drawing the wire rod into a semi-finished steel wire; 5, carrying out heat treatment on the semi-finished steel wire; step 6, drawing the semi-finished steel wire into an outer-layer wire, an inner-layer wire and a central wire; 7, twisting the outer layer filaments, the inner layer filaments and the center filaments into rope strands; and 8, twisting the rope strands and the rope core into the steel wire rope. The method has the beneficial effect of being beneficial to improving the tensile strength and the compactness.

Description

Technical Field

[0001] The invention relates to the technical field related to steel wire ropes, and in particular to a preparation process for steel wire ropes by utilizing polymer industrial filaments. Background Art

[0002] Wire rope is a spiral bundle of steel wires twisted together according to certain rules with steel wires that meet the requirements of mechanical properties and geometric dimensions. Wire ropes are commonly used in lifting applications, such as elevators, escalators, etc. Wire ropes are composed of steel wires, rope cores and grease. Wire ropes are first twisted into strands with multiple layers of steel wires, and then a certain number of strands are twisted into a spiral rope with the rope core as the center. In material handling machinery, it is used for lifting, traction, tensioning and bearing. Wire ropes have high strength, light weight, stable operation, are not easy to break suddenly, and work reliably.

[0003] In the prior art, the steel wire rope structure mainly includes a metal rope core, and the outer surface of the steel wire rope is set as a spiral structure. The steel wire rope is a hollow structure surrounded by the metal rope core. The metal rope core is at least four, and the outer surface of the metal rope core is provided with six steel strands and evenly distributed on the outer surface of the metal rope core. The outer surface of the steel wire rope is covered with a rubber layer. Therefore, according to the existing production process, the steel wire rope is a hollow structure, and the outer surface of the metal rope core is twisted only by a single layer of steel strands, resulting in the steel wire rope having insufficient tensile strength and poor compactness. This makes it easy for the steel wire rope to break at the pulley due to the contact pressure between the steel wire rope and the pulley. Summary of the invention

[0004] The invention aims to overcome the shortcomings of steel wire ropes in the prior art, namely, insufficient tensile strength and poor compactness, and provides a preparation process for steel wire ropes using polymer industrial filaments, which is beneficial to improving tensile strength and compactness.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A preparation process for preparing a steel wire rope using polymer industrial filaments, the steel wire rope comprises a rope core and a plurality of rope strands, the plurality of rope strands are evenly wound on the outer surface of the rope core, the rope strands comprise a central wire, a plurality of inner layer wires and a plurality of outer layer wires, the plurality of inner layer wires are evenly wound on the outer surface of the central wire to form an inner core, and the plurality of outer layer wires are evenly wound on the outer surface of the inner core. The preparation process for preparing a steel wire rope using polymer industrial filaments comprises the following steps: Step 1: prepare wire rod, polymer industrial filament and grease with kinematic viscosity ≥ 20 mm² / s, soak the polymer industrial filament in oil and twist it into yarn count simultaneously; Step 2, configuring the yarn count according to the process, and twisting the yarn count into a rope core synchronously; Step 3: The pickling equipment performs surface treatment on the wire rod, using hydrochloric acid to remove the oxide scale on the wire rod by pre-pickling and pickling, and then phosphating to attach the phosphating film; Step 4: the wire rod is roughly drawn into a semi-finished steel wire by straight-through drawing; Step 5, heat treating the semi-finished steel wire; after the heat treatment, the troostite is converted to improve the tensile strength; Step 6, the semi-finished steel wire is drawn into outer wire, inner wire and center wire through a water tank, and lubricated and water-cooled; Step 7, twist the outer layer wire, the inner layer wire and the center wire into rope strands, with the twist direction being left twist; Step 8, twisting the strands and the core together into a steel wire rope, with the twist direction being right alternating twist; The pickling equipment includes a mounting frame and a liquid storage tank, the mounting frame is located on the side of the liquid storage tank, a roller is provided on the mounting frame, the roller is rotatably connected to the mounting frame, an axis body is eccentrically arranged in the roller, one end of the axis body is fixedly connected to the bottom of the roller, the other end of the axis body is located in the open end of the roller, a sealing cover is hinged at the open end of the roller, a water pump is provided on the liquid storage tank, a water pipe is provided on the water pump, one end of the water pipe is connected to the liquid storage tank through the water pump, the other end of the water pipe passes through the side wall of the roller and is located in the roller, and the water pipe is rotatably connected to the roller. The polymer industrial filament can be polyethylene filament or polyester filament. The polymer industrial filament is used to prepare the wire rope, which has the performance characteristics of waterproof, oil-proof and good toughness. Several strands are evenly wound on the outer surface of the rope core, so the wire rope is a solid rope. At the same time, the strands are twisted into a double-layer solid structure through the outer layer, inner layer and center wire. Compared with the steel wire rope with hollow interior and thin strand structure, it has achieved the purpose of improving tensile strength and compactness to a certain extent. The pickling solution is stored in the liquid storage tank. When pickling the wire rod (i.e. the wire delivered in the form of coils), the operator opens the sealing cover, puts the wire rod into the drum and sets it on the shaft body, and closes the sealing cover; starts the equipment, and the water pump pumps the pickling solution in the liquid storage tank into the drum. After the extraction is completed, the drum rotates, and the wire rod produces a centrifugal effect under the action of the eccentrically set shaft body, so that the parts of the wire rod that originally fit each other can be staggered and separated, so that the wire rod can fully contact with the pickling solution, improving the pickling effect.

[0006] Preferably, in step one, the elongation at break of the polymer industrial filament is 16.5%±2.0, and the breaking strength is ≥8.00cN / dtex; the twist of the polymer industrial filament when twisted into yarn count is 55 turns / m, and the oil temperature is 105±10°C.

[0007] Preferably, in step 2, the number of strands of the rope core is 3, and the twist pitch is 20±1 mm, the diameter of the rope core is 4.9±0.1 mm, the linear density is 18±2 g / m, and the oil content is 7~12%.

[0008] Preferably, in step three, the total acidity of pickling is 70-100 points, and the free acidity is 6-11 points; the hydrochloric acid content of pre-pickling is 3%-8%, and the hydrochloric acid content of pickling is 8%-14%; during phosphating, the temperature of the phosphating tank is 70-90°C, and the weight of the phosphating film is ≥7.5g / mm².

[0009] Preferably, in steps six and seven, the diameter of the central wire is 0.60 mm; the diameter of the inner wire is 0.30 mm, and the tensile strength is 1770 MPa~2160 MPa; the diameter of the outer wire is 0.53 mm, and the tensile strength is 1620 MPa~1900 MPa; the diameter tolerances of the central wire, inner wire and outer wire are all ±0.01 mm; the strand diameter is 2.1±0.01 mm, the strand lay pitch is 18.4±0.6 mm, and the oil content is 1.2~2.0%.

[0010] Preferably, in step eight, the out-of-roundness of the steel wire rope after rope closing is ≥98%, the rope lay pitch is 52±1.5mm and the pre-tension is 12.8±1KN; in the no-load state, the diameter of the steel wire rope is 8.16~8.48mm; under 5% load, the diameter of the steel wire rope is 8.08~8.40mm; under 10% load, the diameter of the steel wire rope is 8.00-8.32mm; the rope strands are pre-deformed, pressed by wire molds, and post-deformed, and then twisted with the rope core into a steel wire rope, which is finally cut and packaged according to customer requirements and shipped.

[0011] Preferably, the cross-section of the drum is circular, the shaft is horizontally arranged and parallel to the depth direction of the drum, and the shaft is located on the side of the central axis of the drum. The arrangement of the shaft makes it easier for the operator to sleeve the wire rod on the shaft, and during the pickling process, it is more conducive to staggering and separating the parts of the wire rod that originally fit together.

[0012] Preferably, the number of the water pumps is two, and the water pumps are detachably connected with a liquid inlet pipe and a liquid outlet pipe, the water pump is detachably connected and communicated with the liquid storage tank through the liquid inlet pipe, one end of the liquid outlet pipe is connected to the water pump, and the other end of the liquid outlet pipe is provided with a three-way valve, the liquid outlet pipe is detachably connected to one end of the water pipe through the three-way valve, the other end of the water pipe is provided with a rotating joint, the water pipe is detachably connected to an L-shaped pipe through the rotating joint, one side of the pipe passes through the bottom center of the drum and is sealed and fixed to the drum, the number of the water pumps is two, and the water pumps are detachably connected with a liquid inlet pipe and a liquid outlet pipe, the water pump is detachably connected and communicated with the liquid storage tank through the liquid inlet pipe, one end of the liquid outlet pipe is connected to the water pump, and the other end of the liquid outlet pipe is provided with a three-way valve, the liquid outlet pipe is connected to the water pump through the three-way valve It is detachably connected to one end of a water pipe, and a rotating joint is provided at the other end of the water pipe. The water pipe is detachably connected to an L-shaped pipe through the rotating joint. One side of the pipe passes through the bottom center of the drum and is sealed and fixed to the drum. The other side of the pipe is located inside the drum and is parallel to the bottom of the drum. One end of the pipe is located outside the drum and is sealed and rotatably connected to the water pipe through a rotating joint. The other end of the pipe is suspended in the drum. The bottom of the drum is respectively connected to a sensing block 1 and a sensing block 2 corresponding to the other side of the pipe, the sensing block 1 is located above the shaft body, and the sensing block 2 is located below the shaft body. A proximity switch 1 and a proximity switch 2 which are electrically connected to the sensing block 1 and the sensing block 2 respectively are provided on the mounting frame, and the proximity switch 1 and the proximity switch 2 are electrically connected to two water pumps respectively. After starting the equipment, the operator operates the corresponding control button to rotate the drum to a certain angle, and the pipeline corresponds to the first sensor block. The first sensor block transmits a signal to the control system through the proximity switch. The control system controls one of the water pumps to extract the pickling solution in the liquid storage tank into the drum; when the pickling is completed, the operator operates the corresponding control button again to rotate the drum until the pipeline corresponds to the second sensor block. The second sensor block transmits a signal to the control system through the proximity switch. The control system controls another water pump to extract the pickling solution in the drum into the liquid storage tank, thereby achieving the purpose of recycling the pickling solution and saving resources; the second sensor block is located below the shaft, so that when the pipeline corresponds to it, its suspended end faces downward, which is convenient for improving the extraction effect of the pickling solution in the drum.

[0013] Preferably, the mounting frame is provided with a plurality of long axes parallel to the drum, the long axes are located on the outside of the drum, and the plurality of long axes are evenly distributed along the circumference of the drum, the two ends of the long axes are rotatably connected to the front and rear sides of the mounting frame respectively, and the two ends of the long axes are sleeved with rollers, the rollers are rotatably connected to the long axes and contact with the surface of the drum, such a design is beneficial to the rotation of the drum on the one hand, and on the other hand, it is beneficial to ensure the position stability of the drum during rotation and to reduce noise; the drum is provided with two annular grooves respectively matching the rollers at the two ends of the long axes, the rollers are rotatably connected to the surface of the drum through the annular grooves, and the rollers match the annular grooves, which further improves the position stability of the drum during rotation, thereby helping to reduce noise; the side wall of the drum is provided with a pressure relief valve, the pressure relief valve is located above the shaft body, when the pickling solution is extracted from the drum, a pressure difference will be generated inside and outside the drum, so the pressure relief valve is used to balance the pressure difference inside and outside the drum.

[0014] Preferably, one of the long shafts is provided with a gear and a driven wheel, the gear and the driven wheel are fixedly connected to the long shaft, the surface of the drum is provided with a plurality of tooth blocks, the plurality of tooth blocks are evenly distributed along the circumference of the drum and mesh with the gears, the mounting frame is detachably connected with a reduction motor, the output end of the reduction motor is provided with a driving wheel, the driving wheel is provided with a belt, one set of the belt is provided on the driving wheel, and the other end of the belt is sleeved on the driven wheel. The reduction motor drives one of the long shafts to rotate through the belt transmission, and the long shaft meshes with the plurality of tooth blocks through the gears to drive the drum to rotate.

[0015] The beneficial effects of the present invention are as follows: the steel wire rope is prepared by using polymer industrial filaments, which has the performance characteristics of being waterproof, oil-proof and having good toughness; compared with the steel wire rope with a hollow interior and a thin strand structure, it achieves the purpose of improving the tensile strength and compactness to a certain extent; the wire rod can be fully in contact with the pickling solution to improve the pickling effect; the purpose of recycling and reusing the pickling solution is achieved, which is beneficial to saving resources; it is easy to improve the extraction effect of the pickling solution in the drum; it is beneficial to ensure the position stability of the drum when it rotates, and it is beneficial to reduce noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the steel wire rope in the present invention; Figure 2 This is a process flow chart of preparing steel wire ropes using polymer industrial filaments in the present invention; Figure 3 It is a structural schematic diagram of the pickling equipment; Figure 4 yes Figure 3 Right view of; Figure 5 It is a schematic diagram of the structure after the wire rod is placed in the pickling equipment.

[0017] In the figure: 1. rope core, 2. rope strand, 3. center wire, 4. inner wire, 5. outer wire, 6. inner core, 7. mounting frame, 8. liquid storage tank, 9. drum, 10. shaft body, 11. sealing cover, 12. water pump, 13. water pipe, 14. liquid inlet pipe, 15. liquid outlet pipe, 16. three-way valve, 17. rotary joint, 18. pipeline, 19. induction block 1, 20. induction block 2, 21. proximity switch 1, 22. proximity switch 2, 23. long shaft, 24. roller, 25. annular groove, 26. gear, 27. driven wheel, 28. tooth block, 29. reduction motor, 30. driving wheel, 31. belt, 32. pressure relief valve. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] Unless otherwise specified, the relative arrangement of the components, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present application. For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" are used in the embodiments to illustrate the relationship between an element or feature shown in the figure and another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be fixed "on" other elements or features. Therefore, the exemplary term "lower" can include both upper and lower orientations. The device can be fixed in other ways (rotated 90 degrees or located in other orientations), and the spatial relative description used here can be interpreted accordingly. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, process and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, process and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0021] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0022] like Figure 1 In the embodiment described, a preparation process for preparing a steel wire rope using polymer industrial filaments, wherein the steel wire rope includes a rope core 1 and a plurality of rope strands 2, wherein the plurality of rope strands 2 are evenly wound on the outer surface of the rope core 1, and wherein the rope strands 2 include a central wire 3, a plurality of inner wires 4 and a plurality of outer wires 5, wherein the plurality of inner wires 4 are evenly wound on the outer surface of the central wire 3 to form an inner core 6, and the plurality of outer wires 5 are evenly wound on the outer surface of the inner core 6, such as Figure 2 As shown, the preparation process of the steel wire rope using polymer industrial filaments comprises the following steps: Step 1: prepare wire rod, polymer industrial filament and grease with kinematic viscosity ≥ 20 mm² / s, soak the polymer industrial filament in oil and twist it into yarn count simultaneously; Step 2, configuring the yarn count according to the process, and synchronously twisting the yarn count into a rope core 1; Step 3: The pickling equipment performs surface treatment on the wire rod, using hydrochloric acid to remove the oxide scale on the wire rod by pre-pickling and pickling, and then phosphating to attach the phosphating film; Step 4: the wire rod is roughly drawn into a semi-finished steel wire by straight-through drawing; Step 5, heat treating the semi-finished steel wire; Step 6, the semi-finished steel wire is drawn into an outer wire 5, an inner wire 4 and a center wire 3 through a water tank, and lubricated and water-cooled; Step 7, twisting the outer layer wire 5, the inner layer wire 4 and the center wire 3 into the rope strand 2, with the twist direction being left twist; Step 8, the rope strands 2 and the rope core 1 are twisted together to form a steel wire rope, and the twist direction is right alternating twist; like Figure 3 , Figure 4 and Figure 5 In the illustrated embodiment, the pickling equipment includes a mounting frame 7 and a liquid storage tank 8. The mounting frame 7 is located on the side of the liquid storage tank 8. A roller 9 is provided on the mounting frame 7. The roller 9 is rotatably connected to the mounting frame 7. An eccentric shaft 10 is provided inside the roller 9. One end of the shaft 10 is fixedly connected to the bottom of the roller 9. The other end of the shaft 10 is located inside the open end of the roller 9. A sealing cover 11 is hinged at the open end of the roller 9. A water pump 12 is provided on the liquid storage tank 8. A water pipe 13 is provided on the water pump 12. One end of the water pipe 13 is connected to the liquid storage tank 8 through the water pump 12. The other end of the water pipe 13 passes through the side wall of the roller 9 and is located inside the roller 9. The water pipe 13 is rotatably connected to the roller 9.

[0023] In step 1, the breaking elongation of the polymer industrial filament is 16.5%±2.0, and the breaking strength is ≥8.00cN / dtex; the twist of the polymer industrial filament when twisted into yarn count is 55 turns / m, and the oil temperature is 105±10°C.

[0024] In step 2, the number of strands of the rope core 1 is 3, and the twist pitch is 20±1 mm, the diameter of the rope core 1 is 4.9±0.1 mm, the linear density is 18±2 g / m, and the oil content is 7-12%.

[0025] In step three, the total acidity of pickling is 70~100 points, and the free acidity is 6~11 points; the hydrochloric acid content of pre-pickling is 3%~8%, and the hydrochloric acid content of pickling is 8%~14%; during phosphating, the temperature of the phosphating tank is 70~90℃, and the weight of the phosphating film is ≥7.5g / mm².

[0026] In steps six and seven, the diameter of the center wire 3 is 0.60mm; the diameter of the inner layer wire 4 is 0.30mm, and the tensile strength is 1770Mpa~2160Mpa; the diameter of the outer layer wire 5 is 0.53mm, and the tensile strength is 1620Mpa~1900Mpa; the diameter tolerances of the center wire 3, the inner layer wire 4 and the outer layer wire 5 are all ±0.01mm; the strand diameter of the rope strand 2 is 2.1±0.01mm, the strand lay pitch is 18.4±0.6mm, and the oil content is 1.2~2.0%.

[0027] In step eight, the out-of-roundness of the wire rope after rope closing is ≥98%, the rope lay pitch is 52±1.5mm and the pre-tension is 12.8±1KN; under no-load state, the wire rope diameter is 8.16~8.48mm; under 5% load, the wire rope diameter is 8.08~8.40mm; under 10% load, the wire rope diameter is 8.00-8.32mm; the rope strand 2 is pre-deformed, pressed by wire die, and post-deformed, and then twisted with the rope core 1 into a wire rope, and finally cut and packaged according to customer requirements for shipment.

[0028] like Figure 4 and Figure 5 As shown, the cross-sectional shape of the drum 9 is circular, the shaft 10 is arranged horizontally and parallel to the depth direction of the drum 9 , and the shaft 10 is located on the side of the central axis of the drum 9 .

[0029] like Figure 3 and Figure 4 As shown, there are two water pumps 12, and the water pumps 12 are detachably connected with a liquid inlet pipe 14 and a liquid outlet pipe 15, respectively. The water pump 12 is detachably connected and communicated with the liquid storage tank 8 through the liquid inlet pipe 14, one end of the liquid outlet pipe 15 is connected to the water pump 12, and the other end of the liquid outlet pipe 15 is provided with a three-way valve 16, and the liquid outlet pipe 15 is detachably connected to one end of the water pipe 13 through the three-way valve 16, and the other end of the water pipe 13 is provided with a rotary joint 17, and the water pipe 13 is detachably connected with an L-shaped pipe 18 through the rotary joint 17, one side of the pipe 18 passes through the bottom center of the drum 9 and is sealed and fixed to the drum 9, and the other side of the pipe 18 is located at the drum 9 The drum 9 is provided with a first sensing block 19 and a second sensing block 20 which are respectively connected to the drum 9 and parallel to the bottom of the drum 9. One end of the pipe 18 is located outside the drum 9 and is sealed and rotatably connected to the water pipe 13 through a rotary joint 17. The other end of the pipe 18 is suspended in the drum 9. The bottom of the drum 9 is respectively connected with a sensing block 19 and a sensing block 20 which correspond to the other side of the pipe 18. The sensing block 19 is located above the shaft 10, and the sensing block 20 is located below the shaft 10. A proximity switch 1 21 and a proximity switch 22 which are respectively electrically connected to the sensing block 19 and the sensing block 20 are provided on the mounting frame 7. The proximity switch 1 21 and the proximity switch 22 are respectively electrically connected to the two water pumps 12.

[0030] The mounting frame 7 is provided with a plurality of long shafts 23 which are parallel to the drum 9. The long shafts 23 are located on the outside of the drum 9 and are evenly distributed along the circumference of the drum 9. The two ends of the long shafts 23 are rotatably connected to the front and rear sides of the mounting frame 7 respectively. Both ends of the long shafts 23 are sleeved with rollers 24 which are rotatably connected to the long shafts 23 and contact the surface of the drum 9. The drum 9 is provided with two annular grooves 25 which match the rollers 24 at the two ends of the long shaft 23 respectively. The rollers 24 are rotatably connected to the surface of the drum 9 through the annular grooves 25. The side wall of the drum 9 is provided with a pressure relief valve 32 which is located above the shaft body 10.

[0031] A gear 26 and a driven wheel 27 are respectively provided on one of the long shafts 23, and the gear 26 and the driven wheel 27 are fixedly connected to the long shaft 23. A plurality of tooth blocks 28 are provided on the surface of the drum 9, and the plurality of tooth blocks 28 are evenly distributed along the circumference of the drum 9 and mesh with the gear 26. A reduction motor 29 is detachably connected to the mounting frame 7, and a driving wheel 30 is provided on the output end of the reduction motor 29, and a belt 31 is provided on the driving wheel 30, and one set of the belt 31 is provided on the driving wheel 30, and the other end of the belt 31 is sleeved on the driven wheel 27.

[0032] The liquid storage tank 8 stores pickling solution. When pickling the wire rod (i.e., the wire rod delivered in the form of coils), the operator opens the sealing cover 11, puts the wire rod into the drum 9 and sets it on the shaft 10, and closes the sealing cover 11. After starting the equipment, the operator operates the corresponding control button to rotate the drum 9 by a certain angle, and the pipeline 18 corresponds to the induction block 19. The induction block 19 transmits a signal to the control system through the proximity switch 21. The control system controls one of the water pumps 12 to work and extract the pickling solution in the liquid storage tank 8 into the drum 9. After the extraction is completed, the reduction motor 29 drives one of the long shafts 23 to rotate through the belt 31. The long shaft 23 is meshed with a plurality of tooth blocks 28 through the gear 26 to drive the drum 9 to rotate. The wire rod produces a centrifugal effect under the action of the eccentrically set shaft 10, so that the parts of the wire rod that originally fit each other can be staggered and separated, so that the wire rod can fully contact with the pickling solution and improve the pickling effect. When the pickling is completed, the operator operates the corresponding control button again to rotate the drum 9 until the pipe 18 corresponds to the induction block 20. The induction block 20 transmits a signal to the control system through the proximity switch 22. The control system controls another water pump 12 to extract the pickling solution in the drum 9 into the liquid storage tank 8, thereby achieving the purpose of recycling the pickling solution and saving resources. The induction block 20 is located below the shaft 10, so that when the pipe 18 corresponds to it, its suspended end faces downward, which is convenient for improving the extraction effect of the pickling solution in the drum 9.

Claims

1. A process for preparing a steel wire rope using polymer industrial filaments, the steel wire rope comprising a rope core (1) and a plurality of rope strands (2), the plurality of rope strands (2) being evenly wound around the outer surface of the rope core (1), wherein: The rope strand (2) comprises a central wire (3), a plurality of inner wires (4) and a plurality of outer wires (5), wherein the plurality of inner wires (4) are uniformly wound around the outer surface of the central wire (3) to form an inner core (6), and the plurality of outer wires (5) are uniformly wound around the outer surface of the inner core (6). The preparation process of the steel wire rope comprises the following steps: Step 1: prepare wire rod, polymer industrial filament and grease with kinematic viscosity ≥ 20 mm² / s, soak the polymer industrial filament in oil and twist it into yarn count simultaneously; Step 2, configuring the yarn count according to the process, and synchronously twisting the yarn count into a rope core (1); Step 3: The pickling equipment performs surface treatment on the wire rod, using hydrochloric acid to remove the oxide scale on the wire rod by pre-pickling and pickling, and then phosphating to attach the phosphating film; Step 4: the wire rod is roughly drawn into a semi-finished steel wire by straight-through drawing; Step 5, heat treating the semi-finished steel wire; Step six, the semi-finished steel wire is drawn into an outer wire (5), an inner wire (4) and a center wire (3) through a water tank, and lubricated and water-cooled; Step 7, twisting the outer layer wire (5), the inner layer wire (4) and the center wire (3) into a rope strand (2), with the twist direction being left twist; Step 8, the rope strands (2) and the rope core (1) are twisted together to form a steel wire rope, with the twist direction being right alternating twist; The pickling equipment comprises a mounting frame (7) and a liquid storage tank (8), wherein the mounting frame (7) is located on a side of the liquid storage tank (8), a roller (9) is provided on the mounting frame (7), and the roller (9) is rotatably connected to the mounting frame (7), an eccentric shaft (10) is provided inside the roller (9), one end of the shaft (10) is fixedly connected to the bottom of the roller (9), the other end of the shaft (10) is located inside the open end of the roller (9), and a sealing cover (11) is hinged at the open end of the roller (9), a water pump (12) is provided on the liquid storage tank (8), and a water pipe (13) is provided on the water pump (12), one end of the water pipe (13) is connected to the liquid storage tank (8) through the water pump (12), and the other end of the water pipe (13) is located inside the roller (9) after passing through the side wall of the roller (9), and the water pipe (13) is rotatably connected to the roller (9).

2. The process for preparing steel wire rope using polymer industrial filaments according to claim 1, characterized in that: In step 1, the breaking elongation of the polymer industrial filament is 16.5%±2.0, and the breaking strength is ≥8.00cN / dtex; the twist of the polymer industrial filament when twisted into yarn count is 55 turns / m, and the oil temperature is 105±10°C.

3. The process for preparing steel wire rope using polymer industrial filaments according to claim 1, characterized in that: In step 2, the number of strands of the rope core (1) is 3, the twist pitch is 20±1 mm, the diameter of the rope core (1) is 4.9±0.1 mm, the linear density is 18±2 g / m, and the oil content is 7-12%.

4. The process for preparing steel wire rope using polymer industrial filaments according to claim 1, characterized in that In step 3, the total acidity of pickling is 70~100 points, and the free acidity is 6~11 points; the hydrochloric acid content of pre-pickling is 3%~8%, and the hydrochloric acid content of pickling is 8%~14%; during phosphating, the temperature of the phosphating tank is 70~90℃, and the weight of the phosphating film is ≥7.5g / mm².

5. The process for preparing steel wire rope using polymer industrial filaments according to claim 1, characterized in that: In step 6 and step 7, the diameter of the central wire (3) is 0.60 mm; the diameter of the inner wire (4) is 0.30 mm, and the tensile strength is 1770 MPa-2160 MPa; the diameter of the outer wire (5) is 0.53 mm, and the tensile strength is 1620 MPa-1900 MPa; the diameter tolerances of the central wire (3), the inner wire (4) and the outer wire (5) are all ±0.01 mm; the strand diameter of the rope strand (2) is 2.1±0.01 mm, the strand lay pitch is 18.4±0.6 mm, and the oil content is 1.2-2.0%.

6. The process for preparing steel wire rope using polymer industrial filaments according to claim 1, characterized in that: In step eight, the out-of-roundness of the wire rope after the rope is ≥98%, the rope lay length is 52±1.5mm, and the pre-tension is 12.8±1KN; under no-load condition, the wire rope diameter is 8.16~8.48mm; under 5% load, the wire rope diameter is 8.08~8.40mm; Under a load of 10%, the diameter of the steel wire rope is 8.00-8.32 mm. The rope strands (2) are pre-deformed, pressed by a wire die, and post-deformed before being twisted with the rope core (1) to form a steel wire rope, which is finally cut and packaged according to customer requirements before shipment.

7. A process for preparing steel wire rope using polymer industrial filaments according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: The cross-sectional shape of the roller (9) is circular, the shaft body (10) is arranged horizontally and is parallel to the depth direction of the roller (9), and the shaft body (10) is located on the side of the central axis of the roller (9).

8. A process for preparing steel wire rope using polymer industrial filaments according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: The number of the water pumps (12) is two. The water pumps (12) are detachably connected to a liquid inlet pipe (14) and a liquid outlet pipe (15). The water pump (12) is detachably connected to and communicates with the liquid storage tank (8) via the liquid inlet pipe (14). One end of the liquid outlet pipe (15) is connected to the water pump (12). The other end of the liquid outlet pipe (15) is provided with a three-way valve (16). The liquid outlet pipe (15) is detachably connected to one end of the water pipe (13) via the three-way valve (16). The other end of the water pipe (13) is provided with a swivel joint (17). The water pipe (13) is detachably connected to an L-shaped pipe (18) via the swivel joint (17). One side of the pipe (18) passes through the bottom center of the drum (9) and is sealed and fixed to the drum (9). The other side of the pipe (18) is located at the drum ( 9) and is parallel to the bottom of the drum (9); one end of the pipe (18) is located outside the drum (9) and is sealed and rotatably connected to the water pipe (13) through a rotary joint (17); the other end of the pipe (18) is suspended in the drum (9); the bottom of the drum (9) is respectively connected to a sensing block 1 (19) and a sensing block 2 (20) corresponding to the other side of the pipe (18); the sensing block 1 (19) is located above the shaft (10); the sensing block 2 (20) is located below the shaft (10); a proximity switch 1 (21) and a proximity switch 2 (22) are respectively provided on the mounting frame (7) and are electrically connected to the sensing block 1 (19) and the sensing block 2 (20); the proximity switch 1 (21) and the proximity switch 2 (22) are respectively electrically connected to the two water pumps (12).

9. A process for preparing steel wire rope using polymer industrial filaments according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: The mounting frame (7) is provided with a plurality of long shafts (23) which are parallel to the roller (9), the long shafts (23) being located outside the roller (9), and the plurality of long shafts (23) being evenly distributed along the circumference of the roller (9), and the two ends of the long shafts (23) being rotatably connected to the front and rear sides of the mounting frame (7) respectively, and rollers (24) being sleeved on the two ends of the long shafts (23), and the rollers (24) being rotatably connected to the long shafts (23) and in contact with the surface of the roller (9); the roller (9) is provided with two annular grooves (25) which are respectively matched with the rollers (24) at the two ends of the long shaft (23), and the rollers (24) are rotatably connected to the surface of the roller (9) through the annular grooves (25); and a pressure relief valve (32) is provided on the side wall of the roller (9), and the pressure relief valve (32) is located above the shaft body (10).

10. The process for preparing steel wire rope using polymer industrial filaments according to claim 9, characterized in that: A gear (26) and a driven wheel (27) are respectively provided on one of the long shafts (23), and the gear (26) and the driven wheel (27) are both fixedly connected to the long shaft (23). A plurality of tooth blocks (28) are provided on the surface of the drum (9), and the plurality of tooth blocks (28) are evenly distributed along the circumference of the drum (9) and mesh with the gear (26). A reduction motor (29) is detachably connected to the mounting frame (7), and a driving wheel (30) is provided on the output end of the reduction motor (29). A belt (31) is provided on the driving wheel (30), and one set of the belt (31) is provided on the driving wheel (30), and the other end of the belt (31) is sleeved on the driven wheel (27).

Images