CN110142318B - Profile bending machine for power transmission tower - Google Patents
Profile bending machine for power transmission tower Download PDFInfo
- Publication number
- CN110142318B CN110142318B CN201910560200.5A CN201910560200A CN110142318B CN 110142318 B CN110142318 B CN 110142318B CN 201910560200 A CN201910560200 A CN 201910560200A CN 110142318 B CN110142318 B CN 110142318B
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- Prior art keywords
- horizontal
- compression bar
- shaped plate
- horizontal compression
- section bar
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- 238000005452 bending Methods 0.000 title claims abstract description 60
- 230000005540 biological transmission Effects 0.000 title claims abstract description 45
- 230000006835 compression Effects 0.000 claims abstract description 72
- 238000007906 compression Methods 0.000 claims abstract description 72
- 239000011324 bead Substances 0.000 claims description 15
- 239000004576 sand Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 13
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
Abstract
The invention discloses a section bar bending machine for a power transmission tower, wherein a top frame is fixed right above a base, a horizontal compression bar is movably connected between the top frame and the base up and down, two sides of the top of the base, which are positioned on the two sides of the horizontal compression bar, are respectively and symmetrically provided with sliding seats, one side of the top of each sliding seat, which faces the horizontal compression bar, is rotationally connected with a rotating roller, the top surface of the top frame is provided with a group of parallel horizontal tracks, each sliding seat slides along the horizontal tracks, a horizontal screw rod is rotationally connected in the base along the direction of the horizontal tracks, the surface of the horizontal screw rod and screw leads positioned on the two sides of the horizontal compression bar are equal and opposite in direction, and each sliding seat is respectively in transmission connection with the corresponding side of the horizontal screw rod through a nut pair. According to the profile bending machine for the power transmission tower, disclosed by the invention, the rotating roller rotates along with the two sides of the bent part of the profile due to bending deformation, and the whole tool seat for placing a workpiece is required to be overturned before is changed through the action of the rotating roller, so that the acting force of the horizontal compression bar is used for bending the profile as completely as possible, and the energy consumption is reduced.
Description
Technical Field
The invention relates to the technical field of profile bending equipment for power transmission towers, in particular to a profile bending machine for power transmission towers.
Background
The power transmission tower is a supporting point of an overhead line, one loop is erected on the power transmission tower and is a single loop power transmission tower, and two loops are erected on the power transmission tower and are double loop power transmission towers. The single loop refers to a loop loaded with a power supply; the double loop is a loop loaded with 2 power supplies. Generally, enterprises with high requirements on power supply reliability or regional important substations are powered by double-circuit lines, so that one power supply can be protected from power failure due to reasons, and the other power supply can continue to supply power. But a single power supply is often adopted for power supply for small and medium users with low requirements on power supply reliability.
Transmission towers are very common in power transmission, and transmission towers are formed by splicing profiles, wherein some of the transmission towers are bent, and the bent profiles are formed by bending the profiles through a bending machine.
The applicant has filed a number of patents relating to bending devices. However, in the previous bending equipment, two ends of a workpiece are required to be placed on a tool seat, then along with bending of a section bar, the two ends of the section bar drive the tool seat to rotate around the bending part, and because the tool seat structure is large and the weight is also large, the rotation of the tool seat structure needs to be performed under the action of a certain torque, and the bending device is required to provide additional acting force to enable the tool seat to rotate, so that the energy consumption is large. In addition, the heating and bending are required to heat the workpiece to a red-hot state, and the bent workpiece still needs to be cooled, so that a great amount of energy used for heating the bow is wasted, and the production energy consumption is high. In addition, when the previously applied patent carries out bending processing to the work piece of different models, its complex operation that needs to be changed still need wait for heating device cooling moreover, and latency is longer, still has certain danger.
Disclosure of Invention
The invention aims at: the utility model provides a solve the defect of prior art, provide a section bar bending machine for steel pylons, the roller itself is followed the both sides of section bar kink department and is rotated because of buckling deformation, has changed the whole frock seat that needs to place the work piece before through the effect of roller to overturn, thereby make the effort of horizontal depression bar all be used for the bending of section bar as far as possible, reduce the energy consumption; through the functions of the limiting notch and the U-shaped plate, the profile can be limited on the rotating roller, and therefore the bending position of the profile is ensured to be accurate; through the action of the positioning beads of the U-shaped plate, the positioning of the section bar is more accurate, and the section bar can conveniently move relative to the rotating roller in the bending process; the friction force between the profile and the U-shaped plate is reduced by the action of the rollers of the U-shaped plate, so that the movement between the profile and the U-shaped plate is further facilitated; through the action of the U-shaped plate, not only can the profile be accurately positioned, but also different U-shaped plates can be replaced according to different profiles, so that the applicability of the bending machine is improved; the jacking bolts are positioned on one side of the rotating roller, which is opposite to the horizontal compression bar, so that screwing of the jacking bolts is facilitated, and interference of the jacking bolts on bending of the section bar is avoided; the U-shaped plate is propped against the horizontal compression bar by the jacking bolts, so that the distance between the U-shaped plate and the horizontal compression bar is reduced, and the bending machine can be suitable for bending shorter sectional materials; through the special structure of the screw rod, the drawing synchronous reverse movement on the two sides of the horizontal compression bar can be realized; the bending machine has the advantages that through the cylindrical cambered surface structures with different diameters, which are arranged on the horizontal compression bar, the bending machine can bend sectional materials to different radiuses, and the applicability of the bending machine is improved; through the action of the positioning convex strips, the positioning accuracy of the cylindrical cambered surface at the bottom of the horizontal compression bar can be ensured, and the bending effect is ensured; through the effect of the limiting roller, the shape of the section bar at two sides of the bending part of the section bar can be ensured, and the friction force between the section bar and the section bar can be reduced; through the spacing groove between two adjacent cylindrical cambered surfaces on the horizontal compression bar, the abrasion caused by the contact between the profile and the adjacent cylindrical cambered surfaces during bending is prevented.
The technical scheme adopted by the invention is as follows:
the utility model provides a section bar bending machine for steel pylons, includes the base, be fixed with the roof-rack through the support column directly over the base, swing joint has horizontal depression bar from top to bottom between roof-rack and the base, the top of base, be located the both sides of horizontal depression bar and be equipped with the slide respectively symmetrically, the slide top, one side rotation towards horizontal depression bar are connected with the roller, the roller is parallel with horizontal depression bar, the top surface fixedly connected with a set of parallel horizontal track of roof-rack, horizontal track is perpendicular with horizontal depression bar, the slide slides along horizontal track, rotate along horizontal track's direction in the base and be connected with horizontal lead screw, the screw lead on horizontal lead screw surface, be located horizontal depression bar both sides equals, opposite direction, the slide passes through the nut pair respectively with horizontal lead screw's corresponding side transmission is connected, the one end of horizontal lead screw provides the driving force through driving motor, the horizontal depression bar passes through the hydraulic piston and reciprocates, the hydraulic piston is fixed in the roof-rack.
According to the invention, a limit notch is formed in one side of the side wall of the rotating roller along the direction perpendicular to the rotating roller, a U-shaped plate is fixed in the limit notch, the bottom plate of the U-shaped plate is in contact with the bottom of the limit notch, the side plate of the U-shaped plate is attached to the groove wall of the limit notch, a plurality of mutually parallel rollers are uniformly distributed on the bottom plate in the U-shaped plate, the rollers are parallel to the horizontal compression bar, the rollers are respectively connected to the U-shaped plate in a rotating mode around respective axes, and the distance between the two side plates of the U-shaped plate is equal to the width of the section bar for the power transmission tower.
According to a further improvement scheme, a plurality of limiting notches are formed and are respectively and sequentially and uniformly distributed along the axis of the rotating roller.
According to a further improvement scheme, two ends of the rotating roller are respectively connected with the sliding seat in a rotating mode through supporting rods, the supporting rods are fixed on the sliding seat, and the rotating roller is connected with the supporting rods in a rotating mode.
According to a further improved scheme, positioning beads are symmetrically arranged on the side wall in the U-shaped plate, the positioning beads move along limiting grooves formed in the side wall of the U-shaped plate, the diameter of each limiting groove is matched with that of each positioning bead, the positioning beads are connected with the bottoms of the limiting grooves through springs with pre-compression stress, check rings are coaxially fixed in the grooves of the limiting grooves, and the inner diameters of the check rings are smaller than the diameter of the positioning beads.
The invention further adopts the improvement that the connecting line of the locating bead and the axle center of the rotating roller is vertical to the bottom of the limit notch.
According to a further improvement scheme, the distance between the positioning beads and the rollers is smaller than the thickness of the section bar for the power transmission tower.
According to the invention, the bottom of the limit notch is lower than the bottom edge of the notch at the position between the two side plates of the U-shaped plate, the height of the bottom edge of the notch is lower than or equal to the height of the top surface of the bottom plate of the U-shaped plate, and the U-shaped plate is fixed in the limit notch through a jacking bolt.
According to a further improvement scheme, the bottom edge of the notch at one side, far away from the horizontal compression bar, of the limiting notch is provided with a threaded hole matched with a jacking bolt, and the jacking bolt penetrates through the threaded hole to jack and fix the U-shaped plate and the bottom edge of the notch at the other side.
According to a further improved scheme, two ends of the horizontal compression bar are fixed at the end parts of piston rods of the hydraulic piston, the side wall surfaces of the horizontal compression bar are sequentially provided with a plurality of cylindrical cambered surfaces with different diameters, two sides of the piston rods facing the rotating roller are symmetrically provided with a row of parallel limit rollers, two ends of the limit rollers are respectively connected with a connecting frame in a rotating mode, the connecting frame is fixed on the piston rods, and a common tangent line of one side of the limit rollers facing the rotating roller is tangent with the cylindrical cambered surface at the bottom of the horizontal compression bar.
According to a further improvement scheme, rotating shafts arranged on the coaxial centers of the two ends of the limiting roller are rotatably connected with the connecting frame.
According to a further improvement scheme, one end of the piston rod, which faces the horizontal compression bar, is provided with a cylindrical arc concave surface, and the cylindrical arc concave surface is separated from a cylindrical arc surface positioned at the top of the horizontal compression bar.
According to a further improvement scheme, a spacing groove is formed in the surface of the horizontal compression bar and located between two adjacent cylindrical cambered surfaces along the axis direction.
According to a further improved scheme, two ends of the horizontal compression bar are fixed with the piston rod through the connecting rod, the connecting rod is provided with a through hole, the end part of the horizontal compression bar is provided with a threaded rod parallel to the axis of the horizontal compression bar, the outer diameter of the threaded rod is matched with the through hole, the threaded rod is respectively provided with matched nuts on two sides of the connecting rod, and the horizontal compression bar is fixed with the connecting rod through the nuts.
According to a further improved scheme of the invention, positioning grooves are respectively formed in the upper side and the lower side of the through hole on the end face of the connecting rod facing the horizontal compression rod, positioning convex strips corresponding to each cylindrical cambered surface are respectively formed in the end face of the horizontal compression rod facing the connecting rod, the structure of each positioning convex strip is matched with the positioning groove, and when one cylindrical cambered surface is located right below the horizontal compression rod, the positioning convex strips corresponding to the cylindrical cambered surfaces are in matched connection with the positioning grooves.
According to a further improvement scheme, the driving motor is a servo motor.
The invention has the beneficial effects that:
according to the profile bending machine for the power transmission tower, the rotating roller rotates along with the bending deformation of the two sides of the bent part of the profile, and the whole tool seat for placing a workpiece is required to be overturned before through the action of the rotating roller, so that the acting force of the horizontal compression bar is used for bending the profile as completely as possible, and the energy consumption is reduced.
Secondly, according to the profile bending machine for the power transmission tower, through the functions of the limiting notch and the U-shaped plate, the profile can be limited on the rotating roller, and therefore the bending position of the profile is ensured to be accurate.
Thirdly, the profile bending machine for the power transmission tower can enable the profile to be positioned more accurately through the action of the positioning beads of the U-shaped plate, and is convenient for relative movement between the profile and the rotating roller in the bending process.
Fourth, the profile bending machine for the power transmission tower reduces friction force between the profile and the U-shaped plate through the action of the rollers of the U-shaped plate, and is further convenient for moving between the profile and the U-shaped plate.
Fifth, the profile bending machine for the power transmission tower not only can accurately position the profile through the action of the U-shaped plate, but also can replace different U-shaped plates according to different profiles, so that the applicability of the bending machine is improved.
Sixthly, the profile bending machine for the power transmission tower is characterized in that the jacking bolts are positioned on one side of the rotating roller, which is opposite to the horizontal compression bar, so that screwing of the jacking bolts is facilitated, and interference of the jacking bolts on bending of the profile is avoided; and the U-shaped plate is propped against the horizontal compression bar by the jacking bolts, so that the distance between the U-shaped plate and the horizontal compression bar is reduced, and the bending machine can be suitable for bending shorter sectional materials.
Seventh, according to the section bar bending machine for the power transmission tower, through the special structure of the screw rod, drawing synchronous reverse movement on two sides of the horizontal compression bar can be realized.
Eighth, according to the profile bending machine for the power transmission tower, through the cylindrical cambered surface structures with different diameters, which are arranged on the horizontal compression bar, the profile can be bent to different radiuses, and the applicability of the bending machine is improved.
Ninth, the profile bending machine for the power transmission tower can ensure accurate positioning of the cylindrical cambered surface at the bottom of the horizontal compression bar through the action of the positioning convex strips, and ensures the bending effect.
Tenth, the profile bending machine for the power transmission tower can ensure the profile shape of two sides of a profile bending part and reduce friction force with the profile through the action of the limiting roller.
Eleventh, according to the profile bending machine for the power transmission tower, through the spacing groove between two adjacent cylindrical cambered surfaces on the horizontal compression bar, the profile is prevented from being contacted with the adjacent cylindrical cambered surfaces to cause abrasion during bending.
Fig. 1 is a schematic side view of the present application.
Fig. 2 is a schematic front view of the present application with the front support post removed.
Fig. 3 is an enlarged schematic view of the horizontal strut position of the present application.
Fig. 4 is an enlarged schematic top view of the turning roll of the present application.
Fig. 5 is an enlarged schematic top view of the rotating roller at the position of the limit notch.
Referring to fig. 1-5, the profile bending machine for the power transmission tower comprises a base 1, a top frame 2 is fixed right above the base 1 through a support column 10, a horizontal compression bar 3 is movably connected between the top frame 2 and the base 1 up and down, sliding seats 5 are symmetrically arranged on the top of the base 1 and on two sides of the horizontal compression bar 3 respectively, a rotating roller 8 is rotatably connected to the top of the sliding seats 5 and one side facing the horizontal compression bar 3, the rotating roller 8 is parallel to the horizontal compression bar 3, a group of parallel horizontal tracks 6 is fixedly connected to the top surface of the top frame 2, the horizontal tracks 6 are perpendicular to the horizontal compression bar 3, the sliding seats 5 slide along the horizontal tracks 6, a horizontal screw rod is rotatably connected in the base 1 along the direction of the horizontal tracks 6, the thread leads on the surface of the horizontal screw rod are equal and opposite in direction, the sliding seats 5 are respectively in transmission connection with the corresponding sides of the horizontal screw rod through nut pairs, one end of the horizontal screw rod provides driving force through a driving motor 7, the horizontal compression bar 3 moves up and down through a hydraulic piston 4, and the hydraulic piston 4 is fixed on the top frame 2.
A limit notch 9 is arranged on one side of the side wall of the rotary roller 8 along the direction vertical to the rotary roller 8, a U-shaped plate 12 is fixed in the limit notch 9, the bottom plate of the U-shaped plate 12 is contacted with the bottom of the limit notch 9, the side plate of the U-shaped plate 12 is attached to the groove wall of the limit notch 9, the bottom plate in the U-shaped plate 12 is uniformly provided with a plurality of rollers 23 which are parallel to each other, the rollers 23 are parallel to the horizontal compression bar 3, the rollers 23 are respectively connected to the U-shaped plate 12 in a rotating way around respective axes, and the distance between the two side plates of the U-shaped plate 12 is equal to the width of the section bar for the power transmission tower.
The limiting notches 9 are arranged in a plurality, and are uniformly distributed along the axis of the rotating roller 8 in sequence.
The two ends of the rotary roller 8 are respectively connected with the sliding seat 5 in a rotating way through supporting rods 16, the supporting rods 16 are fixed on the sliding seat 5, and the rotary roller 8 is connected with the supporting rods 16 in a rotating way.
The side wall symmetry in "U" template 12 is equipped with location pearl 24, location pearl 24 removes along the spacing groove of locating "U" template 12 lateral wall, the diameter in spacing groove matches with location pearl 24, be connected through the spring that is equipped with compressive stress between the tank bottom in location pearl 24 and the spacing groove, the groove coaxial in spacing groove is fixed with the retaining ring, the internal diameter of retaining ring is less than the diameter of location pearl 24.
The connecting line of the positioning bead 24 and the axle center of the rotary roller 8 is vertical to the groove bottom of the limit notch 9.
The distance between the positioning beads 24 and the rollers 23 is smaller than the thickness of the section bar for the power transmission tower.
The groove bottom of the limit groove 9 is lower than the groove bottom edge corresponding to the position between the two side plates of the U-shaped plate 12, the height of the groove bottom edge is lower than or equal to the height of the top surface of the bottom plate of the U-shaped plate 12, and the U-shaped plate 12 is fixed in the limit groove 9 through the jacking bolts 13.
The notch bottom edge of one side, far away from the horizontal compression bar 3, of the limiting notch 9 is provided with a threaded hole matched with a jacking bolt 13, and the jacking bolt 13 penetrates through the threaded hole to tightly jack and fix the U-shaped plate 12 and the notch bottom edge of the other side.
The two ends of the horizontal compression bar 3 are fixed at the end parts of the piston rods 14 of the hydraulic piston 4, the side wall surfaces of the horizontal compression bar 3 are sequentially provided with a plurality of cylindrical cambered surfaces 20 with different diameters, a row of parallel limit rollers 11 are symmetrically arranged on two sides of the piston rods 14 facing the rotating roller 8, the two ends of the limit rollers 11 are respectively connected with a connecting frame 18 in a rotating mode, the connecting frames 18 are fixed on the piston rods 14, and a common tangent line of the limit rollers 11 facing one side of the rotating roller 8 is tangent with the cylindrical cambered surfaces 20 at the bottom of the horizontal compression bar 3.
The rotating shafts 22 arranged on the coaxial centers of the two ends of the limiting roller 11 are rotatably connected with the connecting frame 18.
The end of the piston rod 14 facing the horizontal compression bar 3 is provided with a cylindrical arc concave surface 21, and the cylindrical arc concave surface 21 is separated from a cylindrical arc surface 20 positioned at the top of the horizontal compression bar 3.
The surface of the horizontal compression bar 3 and the space between two adjacent cylindrical cambered surfaces 20 are provided with spacing grooves along the axial direction.
The two ends of the horizontal compression bar 3 are fixed with the piston rod 14 through the connecting rod 17, the connecting rod 17 is provided with a through hole, the end part of the horizontal compression bar 3 is provided with a threaded rod 19 parallel to the axis of the horizontal compression bar 3, the outer diameter of the threaded rod 19 is matched with the through hole, the threaded rods 19 are respectively provided with matched nuts on the two sides of the connecting rod 17, and the horizontal compression bar 3 is fixed with the connecting rod 17 through the nuts.
The connecting rod 17 is equipped with the constant head tank respectively towards on the side terminal surface of horizontal depression bar 3, be located the upside down side of through-hole, be equipped with respectively on the terminal surface that horizontal depression bar 3 faced connecting rod 17 with every cylindrical cambered surface 20 respectively the location sand grip 15, the structure and the constant head tank matching of location sand grip 15, when a certain cylindrical cambered surface 20 is located the horizontal depression bar 3 under, the location sand grip 15 and the constant head tank matching connection that this cylindrical cambered surface 20 corresponds.
The driving motor 7 is a servo motor.
When the steel wire rope bending device is used, the horizontal compression bar 3 and the connecting rod 17 are loosened through the nuts, the proper cylindrical cambered surface 20 is selected to be positioned at the bottom of the horizontal compression bar 3 according to the radius of a bending part to be formed by the section bar for the power transmission tower, then the horizontal compression bar 3 and the connecting rod 17 are fixed through the nuts, and the proper limiting rollers 11 are fixed on the two sides of the piston rod 14 facing the rotating roller 8, so that the common tangent line of the limiting rollers 11 facing the corresponding side rotating roller 8 is tangent with the cylindrical cambered surface 20 positioned at the bottom of the horizontal compression bar 3; according to the length of the section bar for the transmission tower, the distance between the sliding seats 5 is adjusted through the driving motor 7, so that the distance between the axes of the rotating rollers 8 is equal to the length of the section bar for the transmission tower; the two ends of the section bar for the power transmission tower are respectively placed in the U-shaped plate 12, and the two ends of the section bar for the power transmission tower are respectively positioned by the positioning beads 24 under the action of the positioning beads 24; then, the hydraulic piston 4 is started to enable the horizontal compression bar 3 to move downwards, when the horizontal compression bar 3 moves downwards to be in contact with the section bar for the power transmission tower, the driving motor 7 is started to enable the sliding seat 5 to move to one side of the horizontal compression bar 3 along the horizontal track 6, the driving motor 7 is a servo motor to enable the U-shaped plate 12 to be always in contact with the section bar for the power transmission tower until the horizontal compression bar 3 moves downwards to the maximum stroke, the driving motor 7 stops rotating, then the horizontal compression bar 3 moves upwards to the maximum stroke through the hydraulic piston 4, an operator takes out the section bar for the power transmission tower after completing bending, and finally the driving motor 7 is started to enable the sliding seat 5 to return to the initial position along the horizontal track 6.
Claims (8)
1. The utility model provides a section bar bending machine for steel pylons which characterized in that: the hydraulic piston type hydraulic piston comprises a base (1), wherein a top frame (2) is fixedly arranged right above the base (1) through a supporting column (10), a horizontal pressing rod (3) is movably connected between the top frame (2) and the base (1) up and down, sliding seats (5) are symmetrically arranged at the top of the base (1) and on two sides of the horizontal pressing rod (3) respectively, a rotating roller (8) is rotatably connected to one side of the top of the sliding seats (5) facing the horizontal pressing rod (3), the rotating roller (8) is parallel to the horizontal pressing rod (3), a group of parallel horizontal tracks (6) are fixedly connected to the top surface of the top frame (2), the horizontal tracks (6) are perpendicular to the horizontal pressing rod (3), the sliding seats (5) slide along the horizontal tracks (6), horizontal screw rods are rotatably connected to the surfaces of the horizontal screw rods in the directions of the horizontal tracks (6), the screw leads on two sides of the horizontal pressing rod (3) are equal and opposite in directions, the sliding seats (5) are respectively in transmission connection with corresponding sides of the horizontal screw rods through nut pairs, one end of the horizontal motor (7) is used for providing a hydraulic driving force for driving the piston (4) through the horizontal pressing rod (4);
the side wall of the rotating roller (8) is provided with a limit notch (9) along the direction perpendicular to the rotating roller (8), a U-shaped plate (12) is fixed in the limit notch (9), the bottom plate of the U-shaped plate (12) is in contact with the bottom of the limit notch (9), the side plate of the U-shaped plate (12) is attached to the groove wall of the limit notch (9), a plurality of rollers (23) which are parallel to each other are uniformly distributed on the bottom plate in the U-shaped plate (12), the rollers (23) are parallel to the horizontal compression bar (3), the rollers (23) are respectively connected with the U-shaped plate (12) in a rotating way around respective axes, and the distance between the two side plates of the U-shaped plate (12) is equal to the width of the section bar for the power transmission tower;
the two ends of the horizontal compression bar (3) are fixed at the end parts of a piston rod (14) of the hydraulic piston (4), a plurality of cylindrical cambered surfaces (20) with different diameters are sequentially arranged on the side wall surface of the horizontal compression bar (3), a row of parallel limit rollers (11) are symmetrically arranged on two sides of the piston rod (14) facing the rotary rollers (8), two ends of each limit roller (11) are respectively and rotatably connected to a connecting frame (18), the connecting frames (18) are fixed on the piston rod (14), and a common tangent line of the limit rollers (11) facing one side of the rotary rollers (8) is tangent with the cylindrical cambered surfaces (20) at the bottom of the horizontal compression bar (3).
2. A section bar bender for pylon according to claim 1, wherein: the side wall symmetry in "U" template (12) is equipped with location pearl (24), location pearl (24) remove along the spacing groove of locating "U" template (12) lateral wall, the diameter in spacing groove matches with location pearl (24), be connected through the spring that is equipped with prestressing force between the tank bottom in location pearl (24) and spacing groove, the groove coaxial in spacing groove is fixed with the retaining ring, the internal diameter of retaining ring is less than the diameter of location pearl (24).
3. A section bar bender for pylon according to claim 2, wherein: the connecting line of the positioning bead (24) and the axle center of the rotary roller (8) is vertical to the groove bottom of the limit groove opening (9).
4. A section bar bender for pylon according to claim 2, wherein: the distance between the positioning beads (24) and the rollers (23) is smaller than the thickness of the section bar for the power transmission tower.
5. A section bar bender for pylon according to claim 1, wherein: the groove bottom of the limiting groove opening (9) is lower than the groove opening bottom edge corresponding to the position between the two side plates of the U-shaped plate (12), the height of the groove opening bottom edge is lower than or equal to the height of the top surface of the bottom plate of the U-shaped plate (12), and the U-shaped plate (12) is fixed in the limiting groove opening (9) through a jacking bolt (13).
6. A section bar bender for pylon as in claim 5, wherein: the limiting notch (9) is far away from the notch bottom edge at one side of the horizontal compression bar (3) and is provided with a threaded hole matched with the jacking bolt (13), and the jacking bolt (13) penetrates through the threaded hole to tightly fix the U-shaped plate (12) and the notch bottom edge at the other side.
7. A section bar bender for pylon according to claim 1, wherein: the two ends of the horizontal compression bar (3) are fixed with the piston rod (14) through the connecting rod (17), the connecting rod (17) is provided with a through hole, the end part of the horizontal compression bar (3) is provided with a threaded rod (19) parallel to the axis of the horizontal compression bar (3), the outer diameter of the threaded rod (19) is matched with the through hole, the threaded rods (19) are positioned on two sides of the connecting rod (17) and are respectively provided with matched nuts, and the horizontal compression bar (3) is fixed with the connecting rod (17) through the nuts.
8. A section bar bender for pylon as claimed in claim 7, wherein: the connecting rod (17) is equipped with the constant head tank respectively towards on the side terminal surface of horizontal depression bar (3), be located the upside of through-hole, be equipped with on the terminal surface of horizontal depression bar (3) towards connecting rod (17) respectively with every cylindrical cambered surface (20) respectively location sand grip (15), the structure and the constant head tank matching of location sand grip (15), when a certain cylindrical cambered surface (20) are located under horizontal depression bar (3), location sand grip (15) and constant head tank matching connection that this cylindrical cambered surface (20) corresponds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910560200.5A CN110142318B (en) | 2019-06-26 | 2019-06-26 | Profile bending machine for power transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910560200.5A CN110142318B (en) | 2019-06-26 | 2019-06-26 | Profile bending machine for power transmission tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110142318A CN110142318A (en) | 2019-08-20 |
| CN110142318B true CN110142318B (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910560200.5A Active CN110142318B (en) | 2019-06-26 | 2019-06-26 | Profile bending machine for power transmission tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110142318A (en) | 2019-08-20 |
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