CN110588445A - Bolt-free contact line dropper wire clamp, carrier cable dropper wire clamp, dropper wire and integral dropper device - Google Patents
Bolt-free contact line dropper wire clamp, carrier cable dropper wire clamp, dropper wire and integral dropper device Download PDFInfo
- Publication number
- CN110588445A CN110588445A CN201911020367.9A CN201911020367A CN110588445A CN 110588445 A CN110588445 A CN 110588445A CN 201911020367 A CN201911020367 A CN 201911020367A CN 110588445 A CN110588445 A CN 110588445A
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- dropper
- clamp
- wire clamp
- carrier cable
- wire
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- 238000002788 crimping Methods 0.000 claims description 66
- 239000000725 suspension Substances 0.000 claims description 21
- 210000000078 claw Anatomy 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 229910000906 Bronze Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000010974 bronze Substances 0.000 claims description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 208000003656 Electric Burns Diseases 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010010214 Compression fracture Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
- B60M1/22—Separate lines from which power lines are suspended, e.g. catenary lines, supporting-lines under tension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
- B60M1/24—Clamps; Splicers; Anchor tips
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a bolt-free contact line dropper wire clamp, a carrier cable dropper wire clamp, a dropper wire and an integral dropper device, and relates to an electrified railway contact net erecting device. The invention relates to an integral dropper device which comprises a dropper wire, a bolt-free contact wire dropper wire clamp and a bolt-free carrier cable dropper wire clamp, wherein the bolt-free contact wire dropper wire clamp and the bolt-free carrier cable dropper wire clamp are rotatably connected to two ends of the dropper wire, the contact wire dropper wire clamp consists of a left half dropper wire clamp and a right half dropper wire clamp which are detachable and have the same structure, and is inserted together by taking a vertical shaft as a symmetrical shaft through a positioning clamping device and a locking device, and the carrier cable dropper wire clamp consists of a left half carrier cable dropper wire clamp and a right half dropper wire clamp which are detachable and have the same structure, and is inserted together by taking the vertical shaft as the symmetrical shaft through a carrier cable clamping and positioning device and the locking device. The integral dropper device of the invention does not need bolts when being connected with contact wires and carrier cables, and is quick and convenient to construct.
Description
Technical Field
The invention relates to an electrified railway contact net erecting device, in particular to an integral dropper device.
Background
A contact line parallel to the rail is arranged above the electrified railway rail, and the electric energy on the contact line is transmitted to the electric locomotive or the motor train unit through the sliding contact between the contact line and the locomotive pantograph. In order to ensure the current collection quality, the contact line is required to be straight and equal in height, so that the pantograph and the contact line can be smooth only in high-speed sliding contact without jumping, off-line and the like. For this purpose, a large number of integrated suspension devices are installed between the contact wire and the carrier cable for suspending the contact wire.
The existing integral dropper device is an assembly formed by pressing a plurality of parts, and the parts are produced by a stamping process. When the device is installed, the integral dropper is respectively fixed with the contact wire and the carrier cable into a whole through the contact wire dropper wire clamp and the carrier cable dropper wire clamp, namely the contact wire dropper wire clamp clamps the contact wire through fastening a bolt of the contact wire dropper wire clamp, and the carrier cable dropper wire clamp also clamps the carrier cable through fastening a bolt of the carrier cable dropper wire clamp.
An integral dropper device is required to be arranged between a carrier cable and a contact line for about 7 meters on average, bolts and nuts are required to be threaded and installed each time, then a torque wrench is used for fastening, the applied torque is about 25 N.m, and time and labor are wasted.
Because the contact net has elasticity, under the effect of pantograph in motion, the contact net can vibrate, and especially when high-speed railway moves, the vibration of contact net is more violent. Operation practices show that the integral dropper device with the structure has certain potential safety hazards in use. The integral dropper device has more parts, more movable parts exist in the mutual connection of the parts, the movable parts are easy to wear in vibration, for example, the contact position of the hanging ring and the heart-shaped protective ring is easy to wear, the wall thickness of the heart-shaped protective ring is only 1.5mm, the strength margin is small, the wear is serious in time, and the breakage is easy to occur; the dropper wire at the outlet of the crimping pipe is easy to break due to repeated bending; the bolt is easy to loosen, and the nut is easy to fall off if not found in time. All the problems can cause bow net faults, particularly high-speed rails, the driving speed is high, and the consequences are more serious after the integral dropper device breaks down. In order to prevent the occurrence of the faults, a large amount of manpower and material resources are invested in the operation process to supervise and check the operation state of key stressed parts including the integral dropper device and the like, and the operation cost is increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing a bolt-free contact line dropper clamp, a bolt-free carrier cable dropper clamp, a dropper wire and an integral dropper device consisting of the bolt-free contact line dropper clamp, the bolt-free carrier cable dropper clamp and the dropper wire which are quick and convenient to construct, low in operation cost, safe and reliable.
The invention relates to a bolt-free contact line dropper clamp, which consists of a left half dropper clamp and a right half dropper clamp of a contact line, wherein the left half dropper clamp and the right half dropper clamp of the contact line are detachable, the left half dropper clamp and the right half dropper clamp of the contact line have the same structure, are inserted together by a positioning and clamping device and a locking device by taking a vertical shaft as a symmetrical shaft, the positioning and clamping device and the locking device are positioned at the middle layer of the left half dropper clamp body and the right half dropper clamp body of the contact line, the positioning and clamping device consists of a first positioning pin which is connected with the left half dropper clamp body of the contact line and transversely extends rightwards, a first positioning groove which is matched with the first positioning pin and is positioned on the right half dropper clamp body of the contact line, a second positioning and clamping pair which is composed of a second positioning pin which is connected with the left half dropper clamp body of the contact line and transversely extends leftwards, a second positioning groove which is matched with the second positioning pin and is, the two side straight faces of the first positioning pin and the second positioning pin are parallel and have a proper gap, the anti-loosening device consists of a first anti-loosening pair which is arranged on the right side of the first positioning pin and is positioned on the contact line left half string clamp body, a first upper straight rack plate which is matched with the first upper straight rack plate and is arranged on the right side of the first positioning groove and is positioned below the contact line right half string clamp body, a second anti-loosening pair which is arranged on the left side of the second positioning pin and is positioned on the contact line right half string clamp body, a second upper straight rack plate which is matched with the second upper straight rack plate and is arranged on the left side of the second positioning pin and is positioned below the contact line left half string clamp body, and a second lower straight rack plate which is matched with the second upper straight rack plate and is arranged below the contact line left half string clamp body, the plane where the tooth tops of the first upper straight rack plate and the second upper straight rack plate are positioned is flush with the bottom faces of the, the plane where the tooth roots of the first lower straight rack plate and the second lower straight rack plate are located is flush with the bottom surfaces of the second positioning groove and the first positioning groove, the upper layer of the body of the contact line left half string clamp and the right half string clamp are respectively provided with a half hollow cylinder by taking the vertical axis of the body of the contact line string clamp as a symmetry axis, the shape of the inner wall of the whole hollow cylinder formed by the butt joint of the two half hollow cylinders is matched with the shape of the sphere at the lower end of the spherical crimping pipe of the string connected with the whole hollow cylinders, the lower layer of the body of the contact line left half string clamp and the body of the contact line right half string clamp are respectively provided with a string clamping claw by taking the horizontal axis of the body of the contact line string clamp as a symmetry axis, the two string clamping claws are respectively matched with the string clamping grooves of the clamped contact line, and a first threaded through hole for disassembly is formed on the body of the contact line left half string, the position of the first threaded through hole is aligned with the left end face of the second positioning pin, a second threaded through hole for disassembly is formed in the right end of the first positioning groove and on the right half contact line dropper wire clamp body, the position of the second threaded through hole is aligned with the right end face of the first positioning pin, the outer shape of the middle lower part of the contact line dropper wire clamp body is a cuboid, the front side wall of the contact line dropper wire clamp body is formed by splicing the side wall of the second positioning groove connected with the left half contact line dropper wire clamp body and the side wall of the right half contact line dropper wire clamp body matched with the second positioning groove, the rear side wall of the contact line dropper wire clamp body is formed by splicing the side wall of the first positioning groove connected with the right half contact line dropper wire clamp body and the side wall of the left half contact line dropper wire clamp body matched with the first positioning groove, the insertion ends of the side walls of the first positioning groove and the second, The right end face of the contact line right half-hanging string clamp body is respectively provided with a first threading hole, a second threading hole and at least one crimping hole, the first threading hole and the second threading hole are respectively parallel to the first threaded through hole and the second threaded through hole and extend into the first positioning pin and the second positioning pin, and the axis of the crimping hole is vertical to the axis of the corresponding first threading hole and the axis of the corresponding second threading hole.
The bolt-free contact line dropper clamp comprises a first upper straight rack plate, a first lower straight rack plate, a second upper straight rack plate and a second lower straight rack plate, wherein the tooth height of teeth of the first upper straight rack plate, the first lower straight rack plate, the second upper straight rack plate and the second lower straight rack plate is 0.5 mm.
The invention relates to a bolt-free contact line dropper wire clamp, wherein an angle formed by a side straight surface and a side inclined surface of a first positioning pin and a second positioning pin is 5 degrees, and an angle formed by the side straight surface and the side inclined surface of the first positioning slot and the second positioning slot is 5 degrees.
The invention relates to a bolt-free contact line dropper clamp which is different from the prior art in that the bolt-free contact line dropper clamp comprises a left half dropper clamp and a right half dropper clamp which are detachable, the left half dropper clamp and the right half dropper clamp are identical in structure and are inserted together by a positioning clamping device and a locking device by taking a vertical shaft as a symmetrical shaft, the positioning clamping device comprises a first positioning clamping pair and a second positioning clamping pair, the first positioning clamping pair comprises a first positioning pin and a first positioning groove matched with the first positioning pin, the second positioning clamping pair comprises a second positioning pin and a second positioning groove matched with the second positioning pin, the horizontal sections of the first positioning pin and the second positioning pin are in a right trapezoid shape, the front side surface of the first positioning pin and the rear side surface of the second positioning pin are in a straight surface, the rear side surface of the first positioning pin and the front side surface of the second positioning pin are in an inclined surface, the first locating slot and the second locating slot are also in a right trapezoid shape, when a contact line needs to be clamped, any half-string clamp is pushed by external force, the two half-string clamps are inserted into each other, the thrust generated along the inclined plane can be decomposed into two component forces which are perpendicular to each other, the inclined plane of the locating pin of the half-string clamp pushed by the external force moves along the inclined plane of the locating slot of the other half-string clamp by the horizontal component force, one half-string clamp approaches the other half-string clamp by the vertical component force until the contact surfaces of the two half-string clamps are contacted with each other and clamp the contact line, namely, the contact line can be clamped by pushing any half-string clamp by the external force, bolts do not need to be threaded, nuts are installed, and then the torsion is tightened by a; the upper layer of the contact line left and right suspension string clamp bodies and the vertical axis of the contact line suspension string clamp body are respectively provided with a half hollow cylinder, the two half hollow cylinders are butted to form an integral hollow cylinder, the shape of the inner wall of the integral hollow cylinder is matched with the shape of the sphere of the lower spherical compression joint pipe of the suspension string connected with the integral hollow cylinder, and the suspension string can freely rotate in the integral hollow cylinder, so that on one hand, the suspension string can be ensured to be always in a vertical state when the contact line is deflected, the use is not influenced, on the other hand, the suspension string at the outlet of the spherical compression joint pipe can not be broken due to bending, and the service life of the suspension string is prolonged.
In the bolt-free contact line dropper wire clamp, the left dropper wire clamp and the right dropper wire clamp have the same structure, and a set of die is used during production, so that the mounting precision is improved, and the processing cost is reduced; the invention also provides a check device in the bolt-free contact line dropper wire clamp, wherein the check device consists of a first check pair and a second check pair, the first check pair consists of a first upper straight rack plate and a first lower straight rack plate, the second check pair consists of a second upper straight rack plate and a second lower straight rack plate, the first check pair is positioned on the right side of the positioning and clamping device, the second check pair is positioned on the left side of the positioning and clamping device, after the left and right dropper wire clamps are completely inserted and clamp the contact line, the first upper straight rack plate and the first lower straight rack plate are mutually meshed, and the second upper straight rack plate and the second lower straight rack plate are mutually meshed, so that the wire clamp is ensured to be always kept in a locking state and cannot be automatically loosened due to the positioning effect of the positioning and clamping device. In the bolt-free contact line dropper clamp, the first threaded through hole for disassembly is formed in the contact line left half dropper clamp body, the position of the first threaded through hole is aligned with the left end face of the second positioning pin, the second threaded through hole for disassembly is formed in the contact line right half dropper clamp body, and the position of the second threaded through hole is aligned with the right end face of the first positioning pin.
The invention relates to a bolt-free carrier cable dropper wire clamp which comprises a left carrier cable half dropper wire clamp and a right carrier cable half dropper wire clamp which are detachable, wherein the left carrier cable half dropper wire clamp and the right carrier cable half dropper wire clamp have the same structure and are inserted together by a clamping and positioning device and a locking device by taking a vertical shaft as a symmetrical shaft, the clamping and positioning device and the locking device are positioned at the middle layer of the left carrier cable half dropper wire clamp body and the right carrier cable half dropper wire clamp body, the clamping and positioning device comprises a first clamping and positioning pair consisting of a first positioning pin which is connected with the left carrier cable half dropper wire clamp body and transversely extends rightwards and is of a right trapezoid in horizontal section, a second positioning pin which is matched with the first positioning pin and is positioned on the right carrier cable half dropper wire clamp body, and a second clamping and positioning pair consisting of a second positioning pin which is connected with the right carrier cable half dropper wire clamp body and transversely extends leftwards and is of a right trapezoid in horizontal section and a positioning slot which is matched with the second positioning pin and is, the two side straight faces of the first positioning pin and the second positioning pin are parallel and have a proper gap, the anti-loosening device consists of a first anti-loosening pair consisting of a first upper straight rack plate arranged on the right of the first positioning pin, a first lower straight rack plate arranged on the left half messenger wire clamp body of the messenger cable, a first anti-loosening pair consisting of a first upper straight rack plate arranged on the right of the first positioning groove and positioned on the right half messenger wire clamp body of the messenger cable, a second anti-loosening pair consisting of a second lower straight rack plate arranged on the left of the second positioning pin and positioned on the right half messenger wire clamp body of the messenger cable, a second upper straight rack plate matched with the second anti-loosening pair consisting of a second upper straight rack plate arranged on the left of the second positioning groove and positioned on the left half messenger wire clamp body, the planes of the tooth crests of the first and the second lower straight rack plates are flush with the top faces of the first positioning pin and the second positioning pin, and the planes of the tooth roots of the first and the second straight rack plates are flush with, The top surface of one is flushed, the lower floor of the body of the carrier cable left and right half-string clamp, with the vertical axis of the carrier cable left and right half-string clamp body is respectively provided with a half hollow cylinder as the symmetry axis, the shape of the inner wall of the whole hollow cylinder formed by the butt joint of the two half hollow cylinders is matched with the spherical shape of the upper spherical crimping pipe of the string connected with the whole hollow cylinder, the upper floor of the body of the carrier cable left half-string clamp and the body of the carrier cable right half-string clamp is respectively provided with a half cylinder by using the transverse axis of the body of the carrier cable string clamp body as the symmetry axis, the inner hole of the cylinder formed by the two half cylinders is matched with the carrier cable, a first threaded through hole for dismounting is formed on the carrier cable left half-string clamp body positioned at the left end of the second positioning groove, the first threaded through hole is aligned to the left end surface of the second positioning pin, the right end surface of the first positioning groove, The wire clamp comprises a bearing cable right half-string wire clamp body, wherein a first threaded through hole, a second threaded through hole and a first positioning pin are arranged on the bearing cable right half-string wire clamp body, the first threaded through hole is used for dismounting, the second threaded through hole is aligned to the right end face of the first positioning pin, the outer shape of the middle upper portion of the bearing cable right half-string wire clamp body is a cuboid, the rear side wall of the second threaded through hole is formed by splicing the side wall of a second positioning groove connected with the bearing cable left half-string wire clamp body and the side wall of the bearing cable right half-string wire clamp body matched with the second positioning groove, the front side wall of the first positioning groove is formed by splicing the side wall of a first positioning groove connected with the bearing cable right half-string wire clamp body and the side wall of the bearing cable left half-string wire clamp body matched with the first positioning groove, the insertion ends of the first positioning groove and the second side wall of the first positioning groove are semicircular, a first threading, The two are parallel to the first threaded through hole and the second threaded through hole respectively and extend into the first positioning pin and the second positioning pin, and the axis of the crimping hole is perpendicular to the axis of the corresponding first threading hole and the axis of the corresponding second threading hole.
The invention relates to a bolt-free carrier cable dropper wire clamp, wherein the tooth heights of teeth of a lower straight rack plate I, an upper straight rack plate I, a lower straight rack plate II and an upper straight rack plate II are 0.5 mm.
The bolt-free carrier cable dropper wire clamp comprises a first positioning pin and a second positioning pin, wherein an angle formed by the side straight surfaces and the side inclined surfaces of the first positioning pin and the second positioning pin is 5 degrees, and an angle formed by the side straight surfaces and the side inclined surfaces of the first positioning pin and the second positioning pin is 5 degrees.
The invention relates to a bolt-free carrier cable dropper wire clamp, wherein a plurality of corresponding circumferential anti-skidding grooves are arranged on the inner wall of a semi-cylinder body at intervals.
The invention relates to a boltless carrier cable dropper wire clamp which is different from the prior art, and consists of a detachable carrier cable left half dropper wire clamp and a detachable carrier cable right half dropper wire clamp, wherein the carrier cable left half dropper wire clamp and the carrier cable right half dropper wire clamp have the same structure and are inserted together by a clamping and positioning device and a locking device by taking a vertical shaft as a symmetrical shaft, the clamping and positioning device consists of a clamping and positioning pair I and a clamping and positioning pair II, the clamping and positioning pair I consists of a positioning pin I and a positioning groove I matched with the positioning pin I, the clamping and positioning pair II consists of a positioning pin II and a positioning groove II matched with the positioning pin II, the horizontal sections of the positioning pin I and the positioning pin II are in a right trapezoid shape, the front side surface of the positioning pin I and the rear side surface of the positioning pin II are inclined surfaces, the rear side surface of the positioning pin I and the front side surface of the positioning pin II are straight surfaces, the positioning grooves I and II are also in a, pushing any half of the dropper wire clamps by external force, inserting the two half dropper wire clamps into each other, and decomposing the thrust generated along the inclined plane into two component forces which are vertical to each other, wherein the horizontal component force enables the inclined plane of the positioning pin of the half dropper wire clamp pushed by the external force to move along the inclined plane of the positioning groove of the other half dropper wire clamp, and the vertical component force enables one half dropper wire clamp to approach the other half dropper wire clamp until the contact surfaces of the two half dropper wire clamps are contacted with each other and clamp the carrier cable, namely, the carrier cable can be clamped by pushing any half dropper wire clamp by the external force, bolts do not need to be threaded, nuts are installed, and then torque wrenches are used for tightening, so that the construction is rapid and convenient; the lower layer of the body of the carrier cable left and right suspension wire clamps is respectively provided with a half hollow cylinder by taking the vertical axis of the carrier cable suspension wire clamp body as a symmetry axis, the two half hollow cylinders are butted to form an integral hollow cylinder, the shape of the inner wall of the integral hollow cylinder is matched with the shape of the sphere of the upper spherical compression joint pipe of the suspension wire connected with the integral hollow cylinder, and the suspension wire can freely rotate in the integral hollow cylinder, so that on one hand, the suspension wire can be ensured to be always in a vertical state when the carrier cable deflects, the use is not influenced, on the other hand, the suspension wire at the outlet of the spherical compression joint pipe cannot be broken due to bending, and the service life of the suspension wire is prolonged.
In the bolt-free carrier cable dropper wire clamp, the left and right carrier cable dropper wire clamps have the same structure, and a set of mould is used during production, so that the mounting precision can be improved, and the processing cost can be reduced; the invention has no bolt carrier cable hanger clamp to also have anti-loosening devices, the anti-loosening device is made up of one anti-loosening pair and two anti-loosening pairs, one anti-loosening pair is formed by upper spur rack plate one and lower spur rack plate one, two anti-loosening pairs are formed by upper spur rack plate two and lower spur rack plate two, one anti-loosening pair locates at the right side of clamping the locating device, two anti-loosening pairs locate at left side of clamping the locating device, after the left, right half hanger clamp is inserted and clamped the carrier cable completely, the upper spur rack plate one and lower spur rack plate one are intermeshed, the upper spur rack plate two and lower spur rack plate two are intermeshed, because of the positioning action of positioning the clamping device, guarantee the clamp keeps in the locking state all the time, can't loosen automatically. In the bolt-free carrier cable dropper wire clamp, a first dismounting threaded through hole is formed in a carrier cable left half dropper wire clamp body, the position of the first threaded through hole is aligned with the left end face of a positioning pin II, a second dismounting threaded through hole is formed in a carrier cable right half dropper wire clamp body, and the position of the second threaded through hole is aligned with the right end face of the positioning pin I.
The invention relates to a dropper, which comprises a wire body, an upper spherical crimping pipe and a lower spherical crimping pipe, wherein the upper spherical crimping pipe and the lower spherical crimping pipe are respectively crimped at two ends of the wire body, the ball head of the upper spherical crimping pipe is matched with the inner wall of an integral hollow cylinder of a carrier cable dropper wire clamp, and the ball head of the lower spherical crimping pipe is matched with the inner wall of the integral hollow cylinder of a contact wire dropper wire clamp.
The difference between the dropper line and the prior art is that the dropper line comprises a line body, an upper spherical crimping pipe and a lower spherical crimping pipe which are crimped at two ends of the line body, the upper spherical crimping pipe is in spherical hinge connection with a boltless catenary dropper wire clamp, the lower spherical crimping pipe is in spherical hinge connection with a boltless contact wire dropper wire clamp, the dropper line can rotate relative to the two dropper wire clamps, on one hand, the dropper line can be ensured to be always in a vertical state when the carrier cable and the contact wire are deflected, the use is not influenced, on the other hand, the dropper line at the outlet of the spherical crimping pipe cannot be broken due to bending, and the service life of the dropper line is prolonged.
The invention discloses an integral dropper device, which comprises a bolt-free contact line dropper wire clamp, a bolt-free carrier cable dropper wire clamp, a dropper wire, an equipotential line and a lower equipotential line, the ball head of the lower spherical crimping pipe of the dropper line extends into the integral hollow cylinder of the boltless contact line dropper wire clamp and is connected with the ball joint of the hollow cylinder, the bulb of the upper spherical crimping pipe of the dropper extends into the integral hollow cylinder of the boltless carrier cable dropper wire clamp and is connected with the ball joint thereof, the upper end of the equipotential lines is pressed on a first threading hole or a second threading hole of the bolt-free carrier cable dropper wire clamp, the lower end of the upper equipotential line is pressed on the pressing hole of the upper spherical pressing pipe, the upper end of the lower equipotential line is pressed on the pressing hole of the lower spherical pressing pipe, the lower end of the lower equipotential line is pressed on the first threading hole or the second threading hole of the bolt-free contact line dropper wire clamp.
The integral dropper device is characterized in that the bolt-free contact wire dropper wire clamp and the bolt-free carrier cable dropper wire clamp are made of cast aluminum bronze.
The integral string hanging device is different from the prior art in that the integral string hanging device comprises a bolt-free contact line string hanging clamp, a bolt-free carrier cable string hanging clamp and a string hanging wire, wherein a ball head of a lower spherical crimping pipe extends into an integral hollow cylinder of the bolt-free contact line string hanging clamp and is connected with the same in a spherical hinge mode, a ball head of an upper spherical crimping pipe extends into the integral hollow cylinder of the bolt-free carrier cable string hanging clamp and is connected with the same in the spherical hinge mode, and the ball heads of the upper and lower spherical crimping pipes can rotate in the hollow cylinder; when the device is installed, the bolt-free contact wire dropper wire clamp can clamp the contact wire and the bolt-free carrier cable dropper wire clamp can clamp the carrier cable without installing bolts, and the construction is rapid and convenient.
In the integral dropper device, the bolt-free contact line dropper wire clamp and the bolt-free carrier cable dropper wire clamp are respectively provided with the anti-loosening device and the thread through hole for disassembly, the anti-loosening devices can keep the two clamped half dropper wire clamps in a locking state, and the thread through hole for disassembly and the bolt are matched to separate the two locked half dropper wire clamps which can be repeatedly used after separation. In the integral dropper device, the upper equipotential line and the lower equipotential line are arranged, so that equipotential connection is electrically formed between the ball head of the upper spherical crimping pipe and the inner wall of the integral hollow cylinder of the boltless catenary dropper wire clamp, equipotential connection is also electrically formed between the ball head of the lower spherical crimping pipe and the inner wall of the integral hollow cylinder of the boltless contact wire dropper wire clamp, and thus when current passes through the contact surface of the wire clamp and the hollow cylinder, the phenomenon of discharge caused by gas breakdown is avoided, namely, electric burn on the contact surface is avoided; viewed from the conductive channel, the ball head, the integral hollow cylinder and the equipotential line form a parallel connection relationship, and the reliability of current conduction at the connection position is greatly improved.
The bolt-free contact line dropper wire clamp, carrier cable dropper wire clamp, dropper wire and integral dropper device of the invention are further explained with reference to the attached drawings.
Drawings
FIG. 1 is a front view of the integral dropper assembly of the present invention;
FIG. 2 is a left side view of the integrated dropper assembly;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is a front view of a boltless contact wire dropper cable clamp;
FIG. 5 is a left side view of a boltless contact wire dropper cable clamp;
FIG. 6 is a bottom view of a boltless contact wire dropper wire clamp;
FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 5;
FIG. 9 is a schematic illustration of the insertion of a bolt-less contact wire dropper clip;
FIG. 10 is an exploded view of a boltless contact wire dropper clip;
FIG. 11 is a bottom view of the contact wire left hanger clamp half;
FIG. 12 is a bottom view of the contact wire right hanger clamp;
fig. 13 is a front view of a boltless messenger dropper wire clamp;
fig. 14 is a left side view of a boltless messenger dropper wire clamp;
fig. 15 is a top view of a boltless messenger dropper wire clamp;
FIG. 16 is a cross-sectional view taken along line D-D of FIG. 15;
FIG. 17 is a cross-sectional view taken along line E-E of FIG. 14;
fig. 18 is an insertion schematic view of a boltless messenger dropper wire clamp;
fig. 19 is an exploded view of a boltless messenger dropper wire clamp;
fig. 20 is a top view of the messenger left half dropper clip;
fig. 21 is a top view of the messenger right hanger clamp;
FIG. 22 is a front view of the dropper wire;
FIG. 23 is a left side view of the dropper wire;
fig. 24 is a cross-sectional view taken along F-F in fig. 22.
Detailed Description
As shown in FIG. 1, the integral dropper device 1000 of the present invention includes a dropper line 300, a boltless contact line dropper clip 100 and a boltless messenger dropper clip 200 rotatably coupled to both ends of the dropper line 300, an equipotential line 500 crimped between the boltless messenger dropper clip 200 and the upper ball crimp tube 32 of the dropper line 300, and a lower equipotential line 400 mounted between the boltless contact line dropper clip 100 and the lower ball crimp tube 33 of the dropper line 300.
As shown in fig. 4 to 8, the bolt-free contact line dropper clamp 100 is composed of a left half dropper clamp 1 and a right half dropper clamp 1 ', which are detachable, the left half dropper clamp 1 and the right half dropper clamp 1' have the same structure, and are inserted together by a positioning and clamping device 11 and an anti-loosening device 12 with a vertical axis as a symmetry axis.
As shown in fig. 6, 8 to 10, the positioning and clamping device 11 and the anti-loosening device 12 are located at the middle layer of the contact line left and right halves of the dropper clamp 1 and 1'. The positioning and clamping device 11 is composed of a first positioning and clamping pair 111 and a second positioning and clamping pair 112. The first positioning and clamping pair 111 is composed of a first positioning pin 1111 and a first positioning groove 1111 ', the first positioning pin 1111 transversely extends rightwards from the body of the left half-string clamp 1 of the contact line, the horizontal section of the first positioning pin 1111 is in a right trapezoid shape, the body of the right half-string clamp 1 ' of the contact line is provided with the first positioning groove 1111 ', the first positioning groove 1111 ' is matched with the first positioning pin 1111 ', and after the first positioning pin 1111 is inserted into the first positioning groove 1111 ', a gap is formed between the right end surface of the first positioning pin 1111 and the right side wall of the first positioning groove 1111 '. A second positioning pin 1121 ' with a right-angled trapezoid horizontal cross section transversely extends leftwards from the body of the contact line right half string clamp 1 ', a second positioning groove 1121 which is matched with the second positioning pin 1121 ' is arranged on the body of the contact line left half string clamp 1, the second positioning pin 1121 ' and the second positioning groove 1121 form a second positioning clamping pair 112, and the side straight surface of the first positioning pin 1111 is parallel to the side straight surface of the second positioning pin 1121 ', and a gap is reserved.
As shown in fig. 5, 6, 8 to 10, the locking device 12 is composed of a first locking pair 121 and a second locking pair 122. A first upper spur rack plate 1211 is arranged on the left half dropper clamp 1 body of the contact line and on the right side of the first positioning pin 1111 ', a first lower spur rack plate 1211 ' (fig. 12) matched with the first upper spur rack plate 1211 is arranged on the right side of the first positioning groove 1111 ' and on the lower surface of the right half dropper clamp 1 ' body of the contact line, and the first upper spur rack plate 1211 and the first lower spur rack plate 1211 ' form a first anti-loosening pair 121. As shown in fig. 9 and 10, a second upper spur rack plate 1221 ' is disposed on the body of the contact line right half string clamp 1 ' and on the left of the second positioning pin 1121 ', as shown in fig. 9, 10, and 11, a second lower spur rack plate 1221 matched with the second upper spur rack plate 1221 ' is disposed on the lower surface of the body of the contact line left half string clamp 1 and on the left of the second positioning pin 1121, and the second upper spur rack plate 1221 ' and the second lower spur rack plate 1221 constitute a second anti-loose pair 122. The first upper spur rack plate 1211 is engaged with the first lower spur rack plate 1211 ', and the second upper spur rack plate 1221' is engaged with the second lower spur rack plate 1221. The tooth heights of the teeth of the first upper spur rack plate 1211, the first lower spur rack plate 1211 ', the second upper spur rack plate 1221' and the second lower spur rack plate 1221 are all 0.5 mm.
The plane where the tooth crests of the first upper spur rack plate 1211 are located and the plane where the tooth roots of the first lower spur rack plate 1211' are located are flush with the bottom surface of the first locating pin 1111; the plane where the tooth crest of the second upper spur rack plate 1221 'is located and the plane where the tooth root of the second lower spur rack plate 1221 is located are flush with the bottom surface of the second positioning pin 1121'. The plane where the tooth root of the first lower straight rack plate 1211' is located is flush with the bottom surface of the second positioning groove 1121; the plane where the tooth root of the second lower spur rack plate 1221 is located is flush with the bottom surface of the first seating groove 1111'.
As shown in fig. 9 and 10, half hollow cylinders 131 and 131 ' are respectively arranged on the upper layer of the body of the contact line left half string clamp 1 and the contact line right half string clamp 1 ' by taking the vertical axis of the body of the contact line string clamp as a symmetry axis, the two half hollow cylinders 131 and 131 ' are butted to form an integral hollow cylinder 13 (fig. 1), and the shape of the inner wall of the integral hollow cylinder 13 is matched with the spherical shape of the lower spherical crimping pipe 400 of the string 300 connected with the integral hollow cylinder 13. The lower layer of the body of the contact line left half-hanging string clamp 1 is provided with a line clamping claw 141, the lower layer of the body of the contact line right half-hanging string clamp 1 ' is provided with a line clamping claw 141 ', the two line clamping claws are symmetrically arranged by taking the transverse axis of the contact line hanging string clamp body as a symmetry axis, and the two line clamping claws 141 and 141 ' are respectively matched with a line clamping groove 6001 (shown in figure 3) of a clamped contact line 600. As shown in fig. 8, a first threaded through hole 15 for detachment is formed at the left end of the second positioning groove 1121 and on the contact line left half string clamp 1 body, the position of the first threaded through hole 15 is aligned with the left end face of the second positioning pin 1121 ', a second threaded through hole 15 ' for detachment is formed at the right end of the first positioning groove 1111 ' and on the contact line right half string clamp 1 ' body, and the position of the second threaded through hole 15 ' is aligned with the right end face of the first positioning pin 1111.
As shown in fig. 9 and 10, the contact wire dropper body has a rectangular external shape at the middle-lower part, the front side wall 16 is formed by inserting the side wall 161 of the second positioning groove 1121 connected to the contact wire left half dropper 1 body and the side wall 161 ' of the contact wire right half dropper 1 ' body matching with the side wall 161, the rear side wall 17 is formed by inserting the side wall 171 ' of the first positioning groove 1111 ' connected to the contact wire right half dropper 1 ' body and the side wall 171 of the contact wire left half dropper 1 body matching with the side wall 171, the insertion end of the side wall 171 ' of the first positioning groove 1111 ' is semicircular, and the insertion end of the side wall 161 of the second positioning groove 1121 is semicircular.
As shown in fig. 8, an angle a formed by the straight side surface of the first positioning pin 1111 and the inclined side surface is 5 °, and an angle B formed by the straight side surface of the first positioning groove 1111' and the inclined side surface is 5 ° (not shown). An angle a formed by a straight side surface and an inclined side surface of the second positioning pin 1121' is 5 ° (not shown), and an angle B formed by a straight side surface and an inclined side surface of the second positioning pin 1121 is 5 °. The contact line left half string clamp 1 body is provided with a first threading hole 18 and two corresponding crimping holes 19, the contact line right half string clamp 1 ' body is provided with a second threading hole 18 ' and two corresponding crimping holes 19 ', the axis of the first threading hole 18 formed in the contact line left half string clamp 1 body is perpendicular to the axis of the corresponding crimping hole 19, the axis of the second threading hole 18 ' formed in the contact line right half string clamp 1 ' body is perpendicular to the axis of the corresponding crimping hole 19 ', the first threading hole 18 is parallel to the first threaded through hole 15 and extends into the first positioning pin 1111 body, and the second threading hole 18 ' is parallel to the second threaded through hole 15 ' and extends into the second positioning pin 1121 ' body.
As shown in fig. 13 to 17, the boltless messenger wire clamp 200 is composed of a left messenger wire clamp 2 and a right messenger wire clamp 2 'which are detachable, the left messenger wire clamp 2 and the right messenger wire clamp 2' have the same structure, and are inserted together by a clamping and positioning device 21 and a locking device 22 with a vertical axis as a symmetry axis.
As shown in fig. 15, 17 to 19, the clamp positioning means 21 and the anti-loosening means 22 of the messenger wire dropper clip 200 are located at the middle of the left messenger wire dropper half 2 body and the right messenger wire dropper half 2' body. The clamping and positioning device 21 of the messenger wire dropper wire clamp 200 consists of a first clamping and positioning pair 211 and a second clamping and positioning pair 212. A first positioning pin 2111 with a right-angled trapezoid horizontal section is transversely and rightwards extended from the body of the left messenger wire dropper clamp 2, a first positioning groove 2111 ' is formed in the body of the right messenger wire dropper clamp 2 ', and the first positioning pin 2111 and the first positioning groove 2111 ' are matched to form a first clamping and positioning pair 211; and a positioning pin II 2121 ' with a right-angled trapezoid horizontal section extends leftwards from the body of the carrier cable right-half dropper wire clamp 2 ', a positioning groove II 2121 is arranged on the body of the carrier cable left-half dropper wire clamp 2, and the positioning pin II 2121 ' and the positioning groove II 2121 are matched to form a clamping positioning pair II 212. The straight side surface of the first positioning pin 2111 is parallel to the straight side surface of the second positioning pin 2121' with a gap.
As shown in fig. 14, 15, 17 to 19, the anti-loosening device 22 of the messenger wire dropper clamp 200 comprises an anti-loosening pair one 221 and an anti-loosening pair two 222, wherein the anti-loosening pair one 221 comprises a lower straight rack plate one 2211 which is arranged on the right of a first positioning pin 2111 and is positioned on the body of the messenger wire dropper clamp 2 on the left half and an upper straight rack plate one 2211 ' which is matched with the lower straight rack plate one 2211 and is arranged on the right of a positioning pin one 2111 ' and is positioned on the body of the messenger wire dropper clamp 2 on the right half (see fig. 21), and the anti-loosening pair two 222 comprises a lower straight rack plate two 2221 ' which is arranged on the left of a positioning pin two 2121 ' and is matched with the lower straight rack plate two 2221 ' which is arranged on the body of the messenger wire dropper clamp 2 on the right half and is arranged on the left of a positioning pin two 2121 and is arranged on the body of the messenger wire dropper clamp 2 on the. The plane where the tooth tops of the first lower straight rack plate 2211 are located is flush with the top surface of the first positioning pin 2111, and the plane where the tooth tops of the second lower straight rack plate 2221 'are located is flush with the top surface of the second positioning pin 2121'. The plane where the tooth root of the first upper spur rack plate 2211 'is located is flush with the top surface of the second positioning groove 2121, and the plane where the tooth root of the second upper spur rack plate 2221 is located is flush with the top surface of the first positioning groove 2111'.
As shown in fig. 18 and 19, the lower layer of the body of the carrier wire left half dropper clamp 2 is provided with a half hollow cylinder 231, the lower layer of the body of the right half dropper clamp 2 ' is provided with a half hollow cylinder 231 ', the two half hollow cylinders 231 and 231 ' are symmetrically arranged with the vertical axis of the carrier wire dropper clamp body as the symmetry axis and are butted to form an integral hollow cylinder 23 (fig. 1), and the shape of the inner wall of the integral hollow cylinder 23 is matched with the shape of the bulb 321 of the upper spherical crimping pipe 32 of the dropper wire 300 connected with the integral hollow cylinder (fig. 3 and 22).
As shown in fig. 14 and 16-19, the upper layer of the body of the carrier cable left half-dropper wire clamp 2 and the carrier cable right half-dropper wire clamp 2 'is respectively provided with a half cylinder body by taking the transverse axis of the carrier cable dropper wire clamp body as a symmetry axis, the cylinder body consisting of the two half cylinder bodies 241 and 241' is matched with the carrier cable 700, a dismounting threaded through hole I25 is arranged on the body of the carrier cable left half-dropper wire clamp 2 positioned at the left end of a positioning groove II 2121, the position of the threaded through hole I25 is aligned with the left end surface of the positioning pin II 2121 ', a dismounting threaded through hole II 25' is arranged at the right end of the positioning groove I2111 'and on the body of the carrier cable right half-dropper wire clamp 2', the position of the threaded through hole II 25 'is aligned with the right end surface of the positioning pin I2111, the external shape of the middle upper part of the carrier cable dropper wire clamp body is a cuboid, and the rear side wall 26 consists of a side wall 261 of the positioning groove II 2121 connected with the body of the carrier cable left half-dropper wire clamp 2' and a side wall 261 ', the front side wall 27 of which is formed by splicing the side wall 271' of the first positioning groove 2111 'connected with the right messenger string clamp 2' body and the side wall 271 of the left messenger string clamp 2 body matched with the side wall 271, and the insertion ends of the first positioning groove 2111 ', the side walls 271' and 261 of the second positioning groove 2121 are semicircular.
The tooth heights of the teeth of the first lower straight rack plate 2211 and the first upper straight rack plate 2211 'are 0.5mm, and the tooth heights of the teeth of the second lower straight rack plate 2221' and the second upper straight rack plate 2221 are 0.5 mm. As shown in fig. 17, an angle C formed by the straight side surfaces of the first positioning pin 2111 and the second positioning pin 2121 'and the side inclined surface is 5 °, and an angle D formed by the straight side surfaces of the first positioning groove 2111' and the second positioning groove 2121 and the side inclined surface is 5 °.
As shown in fig. 17, the carrier cable left half-dropper wire clamp 2 body is provided with a first threading hole 28 and two crimping holes 29 communicated with the first threading hole 28, the axis of the crimping hole 29 provided by the carrier cable left half-dropper wire clamp 2 body is perpendicular to the axis of the first threading hole 28, the carrier cable right half-dropper wire clamp 2 ' body is provided with a second threading hole 28 ' and two crimping holes 29 ' communicated with the second threading hole 28 ', and the axis of the crimping hole 29 ' provided by the carrier cable right half-dropper wire clamp 2 ' body is perpendicular to the axis of the second threading hole 28 '. The inner wall of the semi-cylinder 241 of the carrier cable left half-dropper clamp 2 body is provided with a plurality of circumferential anti-slip grooves 2411 at intervals, and the inner wall of the semi-cylinder 241 ' of the carrier cable right half-dropper clamp 2 ' body is also provided with a plurality of anti-slip grooves 2411 ' corresponding to the semi-cylinder 241.
As shown in fig. 22-24, the dropper wire 300 comprises a wire body 31, an upper ball-type crimping tube 32, and a lower ball-type crimping tube 33, wherein the upper ball-type crimping tube 32 and the lower ball-type crimping tube 33 are respectively crimped at two ends of the wire body 31. The upper spherical crimping pipe and the lower spherical crimping pipe are made of aluminum bronze, and the material grades are as follows: QCuAl9-4, and the forming process comprises die forging and machining. The compression joint of the upper spherical compression joint pipe and the lower spherical compression joint pipe and the wire body adopts an integral dropper compression joint machine, the pressure is 200kN, and the post-compression fracture force is more than or equal to 3.9 kN.
Specifically, as shown in fig. 3 and 22-24, the ball 331 of the lower ball-type crimp tube 33 extends into and is ball-hinged to the integral hollow cylinder 13 of the boltless contact wire dropper clamp 100, the ball 321 of the upper ball-type crimp tube 32 extends into and is ball-hinged to the integral hollow cylinder 23 of the boltless contact wire dropper clamp 200, the upper end of the upper equipotential wire 500 (fig. 1) is crimped into the first threading hole 28 or the second threading hole 28 'of the boltless contact wire dropper clamp 200 (see fig. 18 and 19), the lower end of the upper equipotential wire 500 is crimped into the crimping hole 322 provided in the upper ball-type crimp tube 32, the lower end of the lower equipotential wire 400 is crimped into the first threading hole 18 or the second threading hole 18' of the boltless contact wire dropper clamp 100, and the upper end of the lower equipotential wire 400 is crimped into the crimping hole 332 provided in the lower ball-type crimp tube 33.
The bolt-free contact wire dropper wire clamp 100 and the bolt-free carrier cable dropper wire clamp 200 are made of cast aluminum bronze of the same grade, the grade is QCuAl9Fe4Ni4Mn2, and the forming process of the bolt-free contact wire dropper wire clamp and the bolt-free carrier cable dropper wire clamp is investment casting.
As shown in fig. 1-3, the installation process of the integral dropper apparatus of the present invention is as follows:
(1) installing the bolt-free contact line dropper wire clamp 100: firstly, the lower spherical crimping pipe 33 of the dropper 300 is placed into the half hollow cylinder 131 of the contact line left half dropper clamp 1, then the wire clamping groove 6001 of the contact line 600 is matched with the wire clamping claw 141 of the contact line left half dropper clamp 1 body, then the wire clamping claw 141 'of the contact line right half dropper clamp 1' body is matched with the wire clamping groove 6001 'of the contact line 600, and the contact line left half dropper clamp 1 and the contact line right half dropper clamp 1' are mutually inserted by pushing with a special tool, as shown in fig. 9 and 10, the inclined plane of the first positioning pin 1111 moves along the inclined plane of the first positioning groove 1111 'when the first positioning pin is inserted, the inclined plane of the second positioning pin 1121' moves along the inclined plane of the second positioning groove 1121, until the contact surfaces of the contact line left half dropper clamp 1 and the contact line right half dropper clamp 1 'are completely contacted, at this time, the first upper straight rack plate 1211 is engaged with the first straight rack plate 1211', the second upper spur rack plate 1221' is meshed with the second lower spur rack plate 1221, the meshing sound of the spur rack plates can be heard in the inserting process, the bolt-free contact line dropper wire clamp 100 clamps the contact line 600 after the insertion is pushed to the place, and the lower spherical crimping pipe 33 can freely rotate in the integral hollow cylinder 13.
(2) Installing the boltless catenary dropper wire clamp 200: firstly, the upper spherical crimping pipe 32 of the dropper 300 is placed into the half hollow cylinder 231 of the carrier cable left half dropper wire clamp 2, then the carrier cable 700 is placed into the half cylinder 241 of the carrier cable left half dropper wire clamp 1 body to be matched with the semi cylinder 241, then the half cylinder 241 'of the carrier cable right half dropper wire clamp 2' body is matched with the carrier cable 700, and the carrier cable left half dropper wire clamp 2 and the carrier cable right half dropper wire clamp 2 'are mutually inserted by pushing with a special tool, as shown in a combined drawing 18 and 19, when the carrier cable left half dropper wire clamp 2 and the carrier cable right half dropper wire clamp 2' are inserted, the inclined surface of the first positioning pin 2111 moves along the inclined surface of the first positioning groove 2111 ', the inclined surface of the second positioning pin 2121' moves along the inclined surface of the second positioning groove 2121 and pushes the contact surfaces of the carrier cable left half dropper wire clamp 2 and the carrier cable right half dropper wire clamp 2 'to be completely contacted, at the moment, the first straight rack plate 2211' is meshed with the first straight rack plate 2211 ', and the second straight rack plate 2221' is meshed with the, during the insertion process, the sound of the engagement of the spur rack plates can be heard, after the straight rack plates are pushed in place, the boltless catenary dropper wire clamp 200 clamps the catenary 700, and the upper spherical crimping pipe 33 can freely rotate in the integral hollow cylinder 23.
The integral dropper device has the following functions and advantages:
1. the invention relates to an integral dropper device, which comprises a bolt-free contact line dropper wire clamp 100, a bolt-free carrier cable dropper wire clamp 200 and a dropper wire 300, wherein a ball head 331 of a lower ball-shaped crimping pipe 33 extends into an integral hollow cylinder 13 of the bolt-free contact line dropper wire clamp 100 and is rotationally connected with the integral hollow cylinder, a ball head 321 of an upper ball-shaped crimping pipe 32 extends into an integral hollow cylinder 23 of the bolt-free carrier cable dropper wire clamp 200 and is rotationally connected with the integral hollow cylinder, and the ball heads of the upper ball-shaped crimping pipe and the lower ball-shaped crimping pipe can rotate freely in the integral hollow cylinder, so that the dropper wire 300 cannot be bent when the contact line 700 or the carrier cable 600 deflects, the joint of the dropper wire body 31 and the upper ball-shaped crimping pipe and the lower ball-shaped crimping pipe is not easy to break, the service life of the integral dropper device is prolonged, and; when the device is installed, the bolt-free contact wire dropper wire clamp can clamp the contact wire and the bolt-free carrier cable dropper wire clamp can clamp the carrier cable without installing bolts, and the construction is rapid and convenient. The clamping principle is as follows: the positioning pin and the positioning groove are respectively provided with a corresponding inclined surface, the slopes are equal, when external force (clamping force) is applied to enable the two half-string clamps to be inserted into each other, the inclined surface of the positioning pin moves along the inclined surface of the positioning groove, the clamping force along the inclined surface can be decomposed into horizontal component force and vertical component force, the horizontal component force enables the two half-string clamps to be inserted into each other, the vertical component force enables the two half-string clamps to approach each other until the contact surfaces of the two half-string clamps are contacted with each other, and finally the contact line or the carrier cable is clamped.
2. In the integral dropper device, the bolt-free contact line dropper wire clamp and the bolt-free carrier cable dropper wire clamp are respectively provided with the anti-loosening device and the threaded through hole for disassembly, the anti-loosening device is formed by meshing an upper straight rack plate and a lower straight rack plate, the two half dropper wire clamps after being clamped can be kept in a locking state, and the wire clamps can not be loosened without external force pushing. The two locked half-dropper wire clamps can be separated by matching the screw thread through holes for disassembly and the bolts, and can be repeatedly used after separation. When the wire clamp does not need to be disassembled, the threaded through hole for disassembly is plugged by the plastic round head, when the wire clamp needs to be disassembled, the plastic round head is pulled out, the matched bolt is screwed in the threaded through hole for disassembly, after the bolt is screwed in the threaded through hole for disassembly, the end part of the bolt is propped against the left end surface or the right end surface of the positioning pin, and along with the continuous screwing in of the bolt, the two half dropper wire clamps are subjected to a pair of forces with equal size and opposite directions, so that the two half dropper wire clamps are gradually separated.
3. The integral dropper device has current passing and is a current carrier. Under normal working conditions, the whole dropper device is in a pulled state, the contact area between the ball head of the spherical compression joint pipe and the inner wall of the whole hollow cylinder is much larger than the sectional area of the dropper wire body, and the contact is good. However, the bulb and the inner wall of the integral hollow cylinder are in sliding or rolling contact instead of being fixedly connected, and discharge can occur between the bulb and the inner wall of the integral hollow cylinder when the contact is poor. In order to ensure that no discharge occurs between contact surfaces under any working condition, the integral dropper device is provided with an upper equipotential line and a lower equipotential line, the arrangement ensures that the ball head of the upper spherical crimping pipe and the inner wall of the integral hollow cylinder of the boltless catenary dropper wire clamp form equipotential connection electrically, and the ball head of the lower spherical crimping pipe and the inner wall of the integral hollow cylinder of the boltless contact wire dropper wire clamp also form equipotential connection electrically, so that when current passes through the contact surfaces of the wire clamp and the hollow cylinder, no gas breakdown occurs to generate a discharge phenomenon, namely, no electric burn on the contact surfaces occurs; viewed from the conductive channel, the ball head, the integral hollow cylinder and the equipotential line form a parallel connection relationship, and the reliability of current conduction at the connection position is greatly improved.
4. The bolt-free contact wire dropper wire clamp and the bolt-free carrier cable dropper wire clamp are both designed into symmetrical structures, and only one set of die is adopted during production, so that the processing cost can be reduced, and the produced wire clamp has good consistency, so that the stress of the wire clamp is more reasonable, and the work is more reliable.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. A boltless contact wire dropper cable clamp (100), comprising: the contact line dropper wire clamp (100) consists of a left half dropper wire clamp (1) and a right half dropper wire clamp (1 ') which are detachable, the left half dropper wire clamp and the right half dropper wire clamp (1') of the contact line have the same structure, and are inserted together by a positioning and clamping device (11) and a locking device (12) by taking a vertical shaft as a symmetrical shaft,
the positioning and clamping device (11) and the anti-loosening device (12) are positioned in the middle layers of the left and right half-string clamp bodies (1 and 1 ') of the contact line, the positioning and clamping device (11) consists of a first positioning pin (1111) which is connected with the left half-string clamp body of the contact line and transversely extends rightwards, has a right trapezoid horizontal section, a first positioning clamping pair (111) which is matched with the first positioning pin and is formed by a first positioning groove (1111 ') on the right half-string clamp body of the contact line, a second positioning pin (1121 ') which is connected with the right half-string clamp body of the contact line and transversely extends leftwards, has a right trapezoid horizontal section, and a second positioning clamping pair (112) which is matched with the second positioning groove (1121) on the left half-string clamp body of the contact line and is formed by a second positioning pin (1121 '), two side straight surfaces of the first positioning pin (1111) and the second positioning pin (1121 ') are parallel and have a proper gap,
the anti-loosening device (12) consists of a first upper straight rack plate (1211) arranged on the right side of the first positioning pin (1111) and positioned on the contact line left half-string clamp (1) body, a first lower straight rack plate (1211 ') matched with the first upper straight rack plate (1211) arranged on the right side of the first positioning groove (1111') and positioned below the contact line right half-string clamp (1 ') body, a second upper straight rack plate (1221') arranged on the left side of the second positioning pin (1121 ') and positioned on the contact line right half-string clamp (1') body, a second upper straight rack plate (1221 ') matched with the second upper straight rack plate (1221') and positioned on the left side of the second positioning groove (1121) and positioned below the contact line left half-string clamp (1) body, and a second anti-loosening pair (122) matched with the second upper straight rack plate (1211), 1221 ') the plane of the tooth top is flush with the bottom surface of the first and second positioning pin (1111, 1121'), the plane of the tooth root of the first and second lower straight rack plate (1211 ', 1221) is flush with the bottom surface of the second and first positioning groove (1121, 1111'), the upper layer of the body of the contact line left and right half string clamps (1, 1 ') is provided with half hollow cylinders (131, 131') respectively by taking the vertical axis of the contact line string clamp body as the symmetry axis, the shape of the inner wall of the integrated hollow cylinder (13) formed by the butt joint of the two half hollow cylinders (131, 131 ') is matched with the shape of the spherical crimping pipe of the string connected with the integrated hollow cylinder, the lower layer of the body of the contact line left half string clamp (1) and the contact line right half string clamp (1') is provided with a string clamping claw respectively by taking the transverse axis of the contact line string clamp body as the symmetry axis, the two wire clamping claws (141, 141') are respectively matched with the wire clamping grooves of the clamped contact wires,
a first threaded through hole (15) for disassembly is formed in a contact line left half string clamp body (1) positioned at the left end of the second positioning groove (1121), the position of the first threaded through hole (15) is aligned to the left end face of the second positioning pin (1121 '), a second threaded through hole (15 ') for disassembly is formed in a contact line right half string clamp body (1 ') positioned at the right end of the first positioning groove (1111 '), the position of the second threaded through hole (15 ') is aligned to the right end face of the first positioning pin (1111),
the external shape of the middle lower part of the contact line dropper wire clamp body is a cuboid, the front side wall (16) of the contact line dropper wire clamp body is formed by splicing the side wall (161) of a second positioning groove (1121) connected with the contact line left half dropper wire clamp (1) body with the side wall (161 ') of the contact line right half dropper wire clamp (1') body matched with the side wall, the rear side wall (17) of the contact line dropper wire clamp body is formed by splicing the side wall (171 ') of a first positioning groove (1111') connected with the contact line right half dropper wire clamp (1 ') body with the side wall (171) of the contact line left half dropper wire clamp (1) body matched with the first positioning groove (1111') and the second positioning groove (1111 ', 1121) respectively, the inserting ends of the side walls (171', 161) are semicircular,
the left end face of the contact line left half-string hanging wire clamp (1) body and the right end face of the contact line right half-string hanging wire clamp (1 ') body are respectively provided with a first threading hole (18), a second threading hole (18), and at least one crimping hole (19, 19 ') communicated with the first threading hole (18) and the second threading hole (18), the first threading hole (18) and the second threading hole (18 ' ) are respectively parallel to the first threaded through hole (15) and the second threaded through hole (15 ' ), and extend into the first positioning pin (1111 '), the second positioning pin (1121 ') respectively, and the axis of the crimping hole (19, 19 ') is vertical to the axis of the corresponding first threading hole (18 '), second threading hole (18 ').
2. The boltless contact wire dropper clamp of claim 1, wherein: the tooth heights of the teeth of the first upper straight rack plate (1211), the first lower straight rack plate (1211 '), the second upper straight rack plate (1221'), and the second lower straight rack plate (1221) are 0.5 mm.
3. The boltless contact wire dropper clamp of claim 2, wherein: an angle (A) formed by the side straight surfaces and the side inclined surfaces of the first positioning pin (1111 ', 1121') and the second positioning pin (1111 ', 1121) is 5 degrees, and an angle (B) formed by the side straight surfaces and the side inclined surfaces of the first positioning pin (1111', 1121) is 5 degrees.
4. The utility model provides a no bolt carrier cable dropper fastener (200), its characterized in that: the carrier cable dropper wire clamp (200) consists of a left carrier cable dropper wire clamp (2) and a right carrier cable dropper wire clamp (2 ') which are detachable, the left and right carrier cable dropper wire clamps (2, 2') have the same structure and are inserted together by a clamping and positioning device (21) and a locking device (22) by taking a vertical shaft as a symmetrical shaft,
the clamping and positioning device (21) and the anti-loosening device (22) are positioned in the middle layers of the left and right carrier cable dropper wire clamp bodies (2 and 2 '), the clamping and positioning device (21) consists of a first clamping and positioning pair (211) which is connected with the left carrier cable dropper wire clamp body (2), extends out transversely to the right and has a right trapezoid horizontal section, a first positioning pin (2111 ') matched with the first positioning pin (2111 ') on the right carrier cable dropper wire clamp body and forms a first clamping and positioning pair (212) which is connected with the right carrier cable dropper wire clamp body, extends transversely to the left and has a right trapezoid horizontal section, a second positioning pin (2121 ') matched with the second positioning pin (2121) on the left carrier cable dropper wire clamp body (2), and two side straight surfaces of the first positioning pin (2111) and the second positioning pin (2121 ') are parallel and have a proper gap,
the anti-loosening device (22) consists of a first lower straight rack plate (2211) arranged on the right of the positioning pin (2111) and positioned on the body of the carrier cable left half-dropper wire clamp (2), a first anti-loosening pair (221) matched with the first lower straight rack plate (2211) arranged on the right of the positioning slot (2111 ') and positioned on the body of the carrier cable right half-dropper wire clamp (2'), and a second anti-loosening pair (222) matched with the first anti-loosening pair and positioned on the left of the positioning pin (2121 ') and positioned on the body of the carrier cable right half-dropper wire clamp (2), a second lower straight rack plate (2221') arranged on the left of the positioning slot (2121) and positioned on the body of the carrier cable left half-dropper wire clamp (2), a second anti-loosening pair (222) matched with the second anti-loosening pair and positioned on the left of the positioning slot (2121) and positioned on the top of the carrier cable left half-dropper wire clamp (2), wherein the plane where the tooth crests of the first lower straight rack plate (2211, the second straight rack plate (2211, The top surfaces of the two straight rack plates (2111, 2121 ') are flush, the planes of the tooth roots of the upper straight rack plates (2211 ', 2221) are flush with the top surfaces of the positioning grooves (2121, 2111 '), the lower layers of the body of the left and right carrier cable suspension wire clamps (2, 2 ') are respectively provided with a half hollow cylinder (231, 231 ') by taking the vertical axis of the carrier cable suspension wire clamp body as a symmetry axis, the shape of the inner wall of the integral hollow cylinder (23) formed by butting the two half hollow cylinders (231, 231 ') is matched with the shape of a spherical crimping pipe of a suspension wire connected with the integral hollow cylinder, the upper layers of the body of the left carrier cable suspension wire clamp (2) and the right carrier cable suspension wire clamp (2 ') are respectively provided with a half cylinder (241, 241 '), and the two half cylinders (241, 2221 ') are respectively arranged by taking the transverse axis of the carrier cable suspension wire clamp body as a symmetry axis, 241 ') is matched with a carrier cable, a first dismounting threaded through hole (25) is arranged on a body of a left half carrier cable dropper clamp (2) positioned at the left end of the second positioning groove (2121), the position of the first threaded through hole (25) is aligned with the left end surface of the positioning pin II (2121'), a second dismounting threaded through hole (25 ') is arranged at the right end of the positioning groove I (2111') and on a body of a right half carrier cable dropper clamp (2 '), the position of the second threaded through hole (25') is aligned with the right end surface of the positioning pin I (2111), the outer shape of the middle upper part of the body of the carrier cable dropper clamp is a cuboid, and the rear side wall (26) is formed by splicing a side wall (261) of the second (2121) connected with the body of the left half carrier cable dropper clamp (2) and a side wall (261 ') of the body of the right half carrier cable dropper clamp (2') matched with the side wall of the positioning pin II (2111), the front side wall (27) is formed by splicing the side wall (271 ') of a positioning groove I (2111 ') connected with the body of the carrier cable right half-dropper wire clamp (2 ') and the side wall (271) of the body of the carrier cable left half-dropper wire clamp (2) matched with the positioning groove I and the carrier cable right half-dropper wire clamp, the insertion ends of the side walls (271 ', 261) of the positioning groove I and the positioning groove II (2111 ', 2121) are semicircular,
the left end face of the carrier cable left half-dropper wire clamp (2) body and the right end face of the carrier cable right half-dropper wire clamp (2 ') body are respectively provided with a first threading hole, a second threading hole (28, 28 ') and at least one crimping hole (29, 29 ') communicated with the first threading hole and the second threading hole (28, 28 '), the first threading hole and the second threading hole (28, 28 ') are respectively parallel to the first threaded hole and the second threaded hole (25, 25 '), and extend into the positioning pins (2111, 2121 '), and the axis of the crimping hole (29, 29 ') is vertical to the axis of the corresponding first threading hole and the second threading hole (28, 28 ').
5. The boltless messenger wire dropper clamp of claim 5, wherein: the tooth height of the teeth of the lower straight rack plate I (2211), the upper straight rack plate I (2211 '), the lower straight rack plate II (2221') and the upper straight rack plate II (2221) is 0.5 mm.
6. The boltless messenger wire dropper clamp of claim 6, wherein: an angle (C) formed by the side straight surfaces and the side inclined surfaces of the first positioning pin and the second positioning pin (2111, 2121 ') is 5 degrees, and an angle (D) formed by the side straight surfaces and the side inclined surfaces of the first positioning pin and the second positioning pin (2111', 2121) is 5 degrees.
7. The boltless messenger wire dropper clamp of claim 8, wherein: the inner walls of the semicylindrical bodies (241, 241 ') are provided with a plurality of corresponding circumferential anti-slip grooves (2411, 2411') at intervals.
8. A dropper wire (300), comprising: the wire clamp comprises a wire body (31), an upper spherical crimping pipe (32) and a lower spherical crimping pipe (33), wherein the upper spherical crimping pipe (32) and the lower spherical crimping pipe (33) are respectively crimped at two ends of the wire body (31), the ball head of the upper spherical crimping pipe (32) is matched with the inner wall of an integral hollow cylinder (23) of a carrier cable dropper wire clamp (200), and the ball head of the lower spherical crimping pipe (33) is matched with the inner wall of an integral hollow cylinder (13) of a contact cable dropper wire clamp (100).
9. An integral dropper apparatus (1000), comprising: comprising the boltless contact wire dropper clip (100) of any of claims 1 to 3, the boltless catenary dropper clip (200) of any of claims 4 to 7, the dropper wire (300) of claim 8, the equipotential wire (500), and the lower equipotential wire (400), the bulb (331) of the lower ball-type crimp tube (33) of the dropper wire (300) extending into and being ball-hinged to the unitary hollow cylinder (13) of the boltless contact wire dropper clip (100), the bulb (321) of the upper ball-type crimp tube (32) of the dropper wire (300) extending into and being ball-hinged to the unitary hollow cylinder (23) of the boltless dropper clip (200), the upper end of the equipotential wire (500) being crimped to the first (28) or second (28') threading hole of the boltless dropper clip (200), the lower end of the upper equipotential line (500) is in pressure joint with a pressure joint hole (322) of an upper spherical pressure joint pipe (32), the upper end of the lower equipotential line (400) is in pressure joint with a pressure joint hole (332) of a lower spherical pressure joint pipe (33), and the lower end of the lower equipotential line (400) is in pressure joint with a first threading hole (18) or a second threading hole (18') of the bolt-free contact line dropper wire clamp (100).
10. The integrated dropper device of claim 9, wherein: the boltless contact wire dropper wire clamp (100) and the boltless carrier cable dropper wire clamp (200) are made of cast aluminum bronze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020367.9A CN110588445B (en) | 2019-10-25 | 2019-10-25 | Bolt-free contact line, carrier cable hanger wire clamp, hanger wire and integral hanger device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020367.9A CN110588445B (en) | 2019-10-25 | 2019-10-25 | Bolt-free contact line, carrier cable hanger wire clamp, hanger wire and integral hanger device |
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| Publication Number | Publication Date |
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| CN110588445A true CN110588445A (en) | 2019-12-20 |
| CN110588445B CN110588445B (en) | 2024-06-07 |
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|---|---|---|---|
| CN201911020367.9A Active CN110588445B (en) | 2019-10-25 | 2019-10-25 | Bolt-free contact line, carrier cable hanger wire clamp, hanger wire and integral hanger device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114312496A (en) * | 2021-12-13 | 2022-04-12 | 中铁十六局集团电气化工程有限公司 | Integrated production platform for contact net dropper |
| CN111746354B (en) * | 2020-08-05 | 2024-05-10 | 中铁建电气化局集团轨道交通器材有限公司 | Bolt-free contact wire hanger wire clamp or carrier cable hanger wire clamp and integral hanger device |
| CN118306272A (en) * | 2024-06-06 | 2024-07-09 | 中铁建电气化局集团轨道交通器材有限公司 | Forging type bolt-free hanger wire clamp and integral hanger wire |
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| CN118306272A (en) * | 2024-06-06 | 2024-07-09 | 中铁建电气化局集团轨道交通器材有限公司 | Forging type bolt-free hanger wire clamp and integral hanger wire |
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