Method of manufacturing roofs of close construction

FIELD: metallurgy.

SUBSTANCE: method of making ropes of a closed structure is as follows. The steel core 1 is made in one technological operation with a linear contact of the wires both over the layers and in the layer itself. All layers of the core are made with the same pitch of the web, in one direction with simultaneous deformation with a reduction ratio of the cross-sectional area of the core 812%. On top of the steel core are coils of shaped wires 2 and 3 of different profile and section. Subsequent extraction of the rope with a fixed load, by applying a load in the range (0.350.55) P, where P - aggregate breaking force of a rope, endurance of loading and the subsequent unloading. The cycle is repeated one to five times. Such a drawing mode allows to stabilise the elastoplastic properties, to remove the residual structural elongation.

EFFECT: improving the quality of the rope of a closed structure, increasing the service life, increasing the efficiency when commissioning.

1 dwg

 



 

Same patents:

FIELD: machine building.

SUBSTANCE: proposed device comprises mechanical reduction gearboxes, and the drive of feeder, braiding mechanism and product assembly mechanism. Note here that said braiding mechanism is composed by two discs to revolve in opposition equipped with three grooves each for fitting strands being braided therein. Switch is arranged between disc shafts to swing in synchronism with revolution of discs to displace the strands in said grooves. Guide plate is arranged above said disc and has the opening for tightening of strands. Feeder is composed of weights secured at strand end. Product assembly mechanism is composed by gripper to fix the start of strands that is rigidly secured at the nut displacing vertically with the help of screw relative to braiding mechanism. Switch working surface shape complies with preset path of stands at braining (ref. to fig. 2). Product assembly mechanism is equipped with reverser and variator to change the gripper displacement rate relative to braiding mechanism.

EFFECT: higher system response speed.

3 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: machine for SZ stranding of a umbilical cord/a power umbilical cord, comprising multiple lengthy elements that differ in cross section, material, function and quantity, differing by the fact that the machine (1) for stranding comprises the following sequence of components, when observed in direction of pulling, starting from the inlet: the first draw plate (3) for reception and collection of the first group of lengthy elements (10a-10c), substantially, in rectilinear form, from appropriate devices (11) for storage of lengthy elements, a fixed second draw plate (4) for reception and collection of the second group of lengthy elements (10d-10f), substantially in rectilinear form, from appropriate devices (16) for storage of lengthy elements and for their combination with elements of the first group into an assembled bundle (18), at least one support facility (5) to hold the assembled bundle (18) radially; a rotary device (6) for twisting rotation of the bundle (18) in opposite directions by type of SZ oscillations and a winding device (7) for winding of the SZ-stranded bundle of (18) lengthy elements (10a-10f) with a tape along the circumference right downstream the rotary device (6).

EFFECT: higher reliability of operation.

10 cl, 9 dwg

FIELD: textile, cotton.

SUBSTANCE: this invention refers to the rope production and can be used for the production of the wire ropes with the target form of the cross-section. The machine has the weaving reducer and straining rolling block, distribution pattern and two straining blocks. The blocks are made to be able to change their location. The first block is installed behind the weaving device in 2-3 steps from the t-rope laying at the angle equal to the angle of the rope strand laying. The second block is sequentially installed behind the first one in 2 t distance, the value of the rope compression in the first block is 0.3 - 0.8 of the value of the rope compression in the second block. The form of the rollers of the second straining block is chosen depending on the cross section of the finished rope.

EFFECT: invention improves service characteristics of the ropes, for example the extension of their service life period.

3 cl, 1 dwg, 1 ex

FIELD: technological processes.

SUBSTANCE: method of double-layer cable lay includes operations of laying the first layer of strands, and then the second layer of strands around the core. During performance of operation of strands first layer laying tension of every strand of the first layer is measured. Radial and angular shift of tension resultant is measured in respect to longitudinal axis of cable. Bending moment value is determined. Prior to laying of the second layer of cable strands every strand is tightened so that bending moment is equal in value to bending moment of the first layer of strands and opposite in direction.

EFFECT: increase of service life and quality of double-layer cable.

2 cl, 3 dwg

FIELD: technique for twisting or cabling of multiple-strand wires or cables.

SUBSTANCE: machine has rotating arch section on which wire or cable moves in longitudinal direction during twisting or cabling, carrier band extending along longitudinal surface of arch on which wire or cable is moving, and drive mechanism for moving carrier band in direction of movement of wire or cable. Carrier band is movable at a velocity deviating from that of wire or cable by no more than 5%. According to one of versions of embodiment, machine comprises fork-like arch having opposite ends, inner surface and outer surface, carrier band movable in one direction over inner surface of arch and in opposite direction over outer surface of arch, pulleys positioned in the vicinity of arch ends and adapted for moving carrier band from one arch surface to another, and drive means for driving of carrier band into motion. Machine has stretching means designed for maintaining said carrier band at constant tension.

EFFECT: increased efficiency by reducing friction force occurring as a result of centrifugal force and/or Coriolis interaction force acting upon wire during movement thereof on said arch and reduced tension exercised by wire during movement thereof in arch.

12 cl, 4 dwg

The invention relates to a wire strands, in particular for the reinforcement of rubber and plastic products, the method of making such wire strands and the device for implementing the method

Kanatova machine // 2123079
The invention relates to hardware industry, but rather to canadawomen machines, and can be used in the production of steel cords and multi-layered rope

The invention relates to the production of woven products and relates to a technology for obtaining high-quality woven products (cables, cores and ropes) on a cigar machine of rotary type

The invention relates to the technology of production of woven products; ropes of polymeric materials, ropes of metal and composite, core, and ropes of fibrous materials, and the twist of the strands in the finished woven product in a cigar machine of rotary type

The invention relates to a device for slyvania jgutierrez products, especially the relatively large cross section with alternating direction of lay (type, SZ), consisting of a rotor, rotating with variable direction of rotation and/or variable speed, with two opposing slave parallel to the axis of the rotor along the endless path drive chains for clamping tacks, which cover the product, send it along a predetermined portion of the path defined by the push bar, and then release

FIELD: technique for twisting or cabling of multiple-strand wires or cables.

SUBSTANCE: machine has rotating arch section on which wire or cable moves in longitudinal direction during twisting or cabling, carrier band extending along longitudinal surface of arch on which wire or cable is moving, and drive mechanism for moving carrier band in direction of movement of wire or cable. Carrier band is movable at a velocity deviating from that of wire or cable by no more than 5%. According to one of versions of embodiment, machine comprises fork-like arch having opposite ends, inner surface and outer surface, carrier band movable in one direction over inner surface of arch and in opposite direction over outer surface of arch, pulleys positioned in the vicinity of arch ends and adapted for moving carrier band from one arch surface to another, and drive means for driving of carrier band into motion. Machine has stretching means designed for maintaining said carrier band at constant tension.

EFFECT: increased efficiency by reducing friction force occurring as a result of centrifugal force and/or Coriolis interaction force acting upon wire during movement thereof on said arch and reduced tension exercised by wire during movement thereof in arch.

12 cl, 4 dwg

FIELD: technological processes.

SUBSTANCE: method of double-layer cable lay includes operations of laying the first layer of strands, and then the second layer of strands around the core. During performance of operation of strands first layer laying tension of every strand of the first layer is measured. Radial and angular shift of tension resultant is measured in respect to longitudinal axis of cable. Bending moment value is determined. Prior to laying of the second layer of cable strands every strand is tightened so that bending moment is equal in value to bending moment of the first layer of strands and opposite in direction.

EFFECT: increase of service life and quality of double-layer cable.

2 cl, 3 dwg

FIELD: textile, cotton.

SUBSTANCE: this invention refers to the rope production and can be used for the production of the wire ropes with the target form of the cross-section. The machine has the weaving reducer and straining rolling block, distribution pattern and two straining blocks. The blocks are made to be able to change their location. The first block is installed behind the weaving device in 2-3 steps from the t-rope laying at the angle equal to the angle of the rope strand laying. The second block is sequentially installed behind the first one in 2 t distance, the value of the rope compression in the first block is 0.3 - 0.8 of the value of the rope compression in the second block. The form of the rollers of the second straining block is chosen depending on the cross section of the finished rope.

EFFECT: invention improves service characteristics of the ropes, for example the extension of their service life period.

3 cl, 1 dwg, 1 ex

FIELD: machine building.

SUBSTANCE: machine for SZ stranding of a umbilical cord/a power umbilical cord, comprising multiple lengthy elements that differ in cross section, material, function and quantity, differing by the fact that the machine (1) for stranding comprises the following sequence of components, when observed in direction of pulling, starting from the inlet: the first draw plate (3) for reception and collection of the first group of lengthy elements (10a-10c), substantially, in rectilinear form, from appropriate devices (11) for storage of lengthy elements, a fixed second draw plate (4) for reception and collection of the second group of lengthy elements (10d-10f), substantially in rectilinear form, from appropriate devices (16) for storage of lengthy elements and for their combination with elements of the first group into an assembled bundle (18), at least one support facility (5) to hold the assembled bundle (18) radially; a rotary device (6) for twisting rotation of the bundle (18) in opposite directions by type of SZ oscillations and a winding device (7) for winding of the SZ-stranded bundle of (18) lengthy elements (10a-10f) with a tape along the circumference right downstream the rotary device (6).

EFFECT: higher reliability of operation.

10 cl, 9 dwg

FIELD: machine building.

SUBSTANCE: proposed device comprises mechanical reduction gearboxes, and the drive of feeder, braiding mechanism and product assembly mechanism. Note here that said braiding mechanism is composed by two discs to revolve in opposition equipped with three grooves each for fitting strands being braided therein. Switch is arranged between disc shafts to swing in synchronism with revolution of discs to displace the strands in said grooves. Guide plate is arranged above said disc and has the opening for tightening of strands. Feeder is composed of weights secured at strand end. Product assembly mechanism is composed by gripper to fix the start of strands that is rigidly secured at the nut displacing vertically with the help of screw relative to braiding mechanism. Switch working surface shape complies with preset path of stands at braining (ref. to fig. 2). Product assembly mechanism is equipped with reverser and variator to change the gripper displacement rate relative to braiding mechanism.

EFFECT: higher system response speed.

3 cl, 2 dwg

FIELD: metallurgy.

SUBSTANCE: method of making ropes of a closed structure is as follows. The steel core 1 is made in one technological operation with a linear contact of the wires both over the layers and in the layer itself. All layers of the core are made with the same pitch of the web, in one direction with simultaneous deformation with a reduction ratio of the cross-sectional area of the core 812%. On top of the steel core are coils of shaped wires 2 and 3 of different profile and section. Subsequent extraction of the rope with a fixed load, by applying a load in the range (0.350.55) P, where P - aggregate breaking force of a rope, endurance of loading and the subsequent unloading. The cycle is repeated one to five times. Such a drawing mode allows to stabilise the elastoplastic properties, to remove the residual structural elongation.

EFFECT: improving the quality of the rope of a closed structure, increasing the service life, increasing the efficiency when commissioning.

1 dwg

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