CN102785590B - Bolt-free busbar elastic wire clamp - Google Patents
Bolt-free busbar elastic wire clamp Download PDFInfo
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- CN102785590B CN102785590B CN201210310040.7A CN201210310040A CN102785590B CN 102785590 B CN102785590 B CN 102785590B CN 201210310040 A CN201210310040 A CN 201210310040A CN 102785590 B CN102785590 B CN 102785590B
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Abstract
The invention provides a bolt-free busbar elastic wire clamp, belonging to the field of an electrified railway contact system and solving problems that operators may be suffered from an electric shock by a charged capacitor formed by a busbar and a wire clamp main body while repairing an existing bolt-free busbar elastic wire clamp, and at the same time, a filler strip is likely to be stuck inside a groove. The bolt-free busbar elastic wire clamp comprises a connecting base, wherein a connecting piece for fixing the connecting base on a cantilever is connected with the connecting base; an elastic buffer structure is arranged between the connecting base and the connecting piece; U-shaped clamping grooves which can be clamped on ridges at two sides of the busbar are symmetrically distributed on the connecting base; and conductive slide blocks for connecting with the busbar are fixedly connected inside the two clamping grooves through clamping structures respectively. There is no voltage between the busbar and the elastic wire clamp. When people touch the elastic wire clamp or the busbar, a current can not pass through a human body, so that a phenomenon of the electric shock is avoided, and a filler strip is prevented from being stuck inside the groove due to a fact that calcium nitrate is formed, so that a security property is improved.
Description
Technical field
The invention belongs to electrification railway contact net field, relate to a kind of Bolt-free busbar elastic wire clamp.
Background technology
Overheat rigid contact network uses elastic wire clamp to be used for fixing, rigidity of support contact system bus duct, and along with the fast development of Construction of Urban Rail Traffic, rigidity overhead contact line, due to its advantage such as non-maintaining, replaces the trend of the times of flexible overhead contact line.Rigid contact net adopts rigid support insulator to be arranged on the channel beam of tunnel top.Rigid contact net bus duct vertical support is hung above circuit by collector-gang positioning lead clip, supports contact system by bus duct.
Existing elastic wire clamp of bus bar generally comprises wire clip body, fixed block body, tie bolt and spring.The left end of wire clip body is shaped with draw-in groove one, right-hand member is fixed with fixed block body, and make to be formed between fixed block body and wire clip body one with the draw-in groove two of draw-in groove one symmetry, tie bolt is inserted on the through hole of wire clip body central authorities, spring housing to be located on tie bolt and to be positioned at wire clip body, attaching parts is fixed on one end of tie bolt and is positioned at outside wire clip body, all being inlaid with insulating gasket in draw-in groove one and draw-in groove two, the inner end surface of insulating gasket having symmetrically for placing the bus duct holding tank of bus duct.Be positioned at the screw wire clip body above insulating gasket being shaped with and running through wire clip body and insulating gasket, insulating gasket and wire clip body are connected through screw by bolt.The elastic wire clamp of this structure can improve bus duct locating point elasticity vertically, overcomes the irregular wear that rigid suspension catenary occurs; But elastic wire clamp is often in the environment of frequent vibration in the middle of actual use procedure, the insulating gasket of the elastic wire clamp of this structure is connected by bolt and wire clip body, bolt easily loosens, need so in actual use often carry out inspection to bolt and safeguard timely, waste manpower and financial resources, be not easy to popularize; And liner is that insulating material is made, voltage is there is between bus duct and wire clip body, then be equivalent to bus duct and wire clip body forms an electric capacity, then to this capacitor charging when locomotive process time, but when maintenance, often occur, because the electric current of this electric capacity flows through the phenomenon that " hired roughneck " occurs staff, to there is potential safety hazard.
For the problem that bolt easily loosens, Chinese invention patent [ZL200910155209.4] discloses one " straight clamping type elastic wire clamp of bus bar ", this elastic wire clamp comprises the peg for being connected with girder steel, the cylindrical shell of rubber elastic layer is equipped with in inside, at the end face of rubber elastic layer and ground, top board and base plate are set respectively, top board is fixedly connected with cylindrical shell top as top cover, base plate can be movable relative to cylinder inboard wall, peg runs through top board and is fixedly connected with base plate with after rubber elastic layer, overall cylindrical shell is moved up and down relative to peg, the wire clamp for clamping bus duct is provided with at cylindrical shell subjacent, wire clamp top has clamp portion, clamp portion stretches into and is stuck in the inner bottom surface of cylindrical shell, there is bottom wire clamp bend inwards groove one and the groove two of formation for placing bus duct, plastic cushion (of tie bar) is installed with respectively in groove one and groove two.The filler strip of this elastic wire clamp directly and wire clip body be connected, there is not locking problem like this, save the cost safeguarded, but this filler strip is adopted made of plastic, general plastics are all insulating materials, so, still there is the problem of above-mentioned said " hired roughneck " in the elastic wire clamp of this structure, there is potential safety hazard, and bus duct and wire clip body form an electric capacity, voltage between bus duct and wire clip body is can puncture air by the nitrogen in air more than a fixed number, oxygen and aqueous vapor form nitric acid, the rock reaction in nitric acid and tunnel forms white crystal calcium nitrate, formed calcium nitrate bottom filler strip and wire clamp between, the easy like this filler strip that makes is in a groove stuck.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of Bolt-free busbar elastic wire clamp, this elastic wire clamp can avoid the phenomenon of electric capacity to personnel " hired roughneck " after charging formed at bus duct when keeping in repair and wire clip body, avoids filler strip in a groove stuck simultaneously.
Object of the present invention realizes by following technical proposal: a kind of Bolt-free busbar elastic wire clamp, comprise a connecting seat, Connection Block is connected with the attaching parts that can be fixed on cantilever, elastic buffer structure is provided with between described Connection Block and attaching parts, it is characterized in that, described Connection Block is symmetrically distributed with the U-shaped draw-in groove that can be connected on bus duct two arris, in two draw-in grooves, is fixed with a conductive slider for being connected with bus duct respectively by an interface arrangment.
When pantograph runs through elastic wire clamp place, the impact of pantograph to it is passed to elastic wire clamp by bus duct, attaching parts moves up relative to elastic wire clamp, in the process of movement, the elastic buffer structure between Connection Block and attaching parts absorbs the impact energy of pantograph, makes " hard spot " of elastic wire clamp not hard, reduce the infringement of the impact energy pair cantilever be connected with elastic wire clamp of pantograph, pantograph is run more steady, effective by stream, the reliability of long-time running is high; Be installed with the conductive slider be connected with bus duct in two draw-in grooves, the conductive channel that bus duct and elastic wire clamp are formed by conductive slider electrically communicates simultaneously.No-voltage between bus duct and elastic wire clamp.When people encounters elastic wire clamp and bus duct, electric current through human body, thus can not avoid the appearance of " hired roughneck " phenomenon, improves safety performance; And, avoid the formation of calcium nitrate and make filler strip in a groove stuck.Conductive slider is mixed by electrically conductive graphite and carbon fiber, and this conductive slider commercially all has sale, as Qun Xu plastic material Co., Ltd produces and the conductive slider sold.
In above-mentioned Bolt-free busbar elastic wire clamp, the notch of described two U-shaped draw-in grooves is relative.
In above-mentioned Bolt-free busbar elastic wire clamp, described conductive slider is one to adapt with above-mentioned U-shaped draw-in groove shape and with the U-shaped fixture block of a bayonet socket, when conductive slider is arranged in U-shaped draw-in groove, the bayonet socket of conductive slider and the notch of U-shaped draw-in groove are towards identical.
Bus duct is arranged in the bayonet socket of conductive slider, and conductive slider avoids bus duct to swing; Meanwhile, conductive slider avoids bus duct directly to contact with the cell wall of two U-shaped draw-in grooves of elastic wire clamp, thus eliminates bus duct owing to being subject to the energy impact of pantograph and the wearing and tearing that cause elastic wire clamp.
In above-mentioned Bolt-free busbar elastic wire clamp, length direction along bayonet socket wall on the bayonet socket wall that described interface arrangment is included in conductive slider offers the bar shaped perforate running through bayonet socket wall, be on the bayonet socket wall above above-mentioned bar shaped perforate and there is a projection, U-shaped draw-in groove cell wall is provided with a locating notch, when conductive slider is in U-shaped draw-in groove, described projection is arranged in breach.Conductive slider is mixed by electrically conductive graphite and carbon fiber, has certain elasticity.
The bayonet socket wall of conductive slider is arranged with bar hole, makes bayonet socket wall be easy to elastic deformation occurs like this, be convenient to conductive slider to be mounted in U-shaped draw-in groove.When installation conductive slider is in U-shaped draw-in groove, press bayonet socket wall towards bar hole generation elastic deformation, the projection on bayonet socket wall snaps in the breach of U-shaped draw-in groove cell wall, and conductive slider is relative with elastic wire clamp with the cooperation of breach fixing by projection.
In above-mentioned Bolt-free busbar elastic wire clamp, another bayonet socket wall of described conductive slider has one and turns edge, when conductive slider is in U-shaped draw-in groove, described turning edge is positioned at the cell wall end of U-shaped draw-in groove.
In above-mentioned Bolt-free busbar elastic wire clamp, described attaching parts is the nut of a cylindrical shape, and described nut one end has outer-hexagonal head, and the other end of described nut is fixed by a jump ring through Connection Block.The outer-hexagonal head of nut is positioned at the bottom of Connection Block through Connection Block.
In above-mentioned Bolt-free busbar elastic wire clamp, described Connection Block has the buffer part be made up of two parallel plates, above-mentioned nut is through buffer part.Nut is vertical with the plate face of parallel plate.
In above-mentioned Bolt-free busbar elastic wire clamp, described elastic buffer structure comprises the spring and be set on nut and is connected in annular backing plate one on nut lateral wall, between this spring and annular backing plate one two parallel plates all in above-mentioned buffer part, one end of described spring is resisted against in above-mentioned buffer part on parallel plate inwall, and the other end is resisted against on above-mentioned annular backing plate one.
Backing plate one near the outer-hexagonal head end of nut, when outer-hexagonal head be subject to bus duct extruding be subjected to displacement time, the backing plate one be connected with nut makes spring generation elastic deformation, and spring absorbs from the impact energy of pantograph.
In above-mentioned Bolt-free busbar elastic wire clamp, described elastic buffer structure comprises and is set in spring on joint pin and an annular backing plate two, joint pin lateral wall is fixed with annular backing plate one, between this spring, annular backing plate two and annular backing plate one two parallel plates all in above-mentioned buffer part, one end of described spring is resisted against in above-mentioned buffer part on parallel plate inwall by annular backing plate two, and the other end is resisted against on above-mentioned annular backing plate one.Backing plate one is near the outer-hexagonal head end of nut; Backing plate two nut far ultraviolet hexagon-head end and be located between spring and parallel plate.
When outer-hexagonal head be subject to bus duct extruding be subjected to displacement time, the backing plate one be connected with joint pin makes spring generation elastic deformation, and spring absorbs from the impact energy of pantograph.Backing plate two avoids spring directly to contact with parallel plate, thus eliminates spring to the wearing and tearing of parallel plate, is convenient to the maintenance to whole elastic wire clamp.
Compared with prior art, Bolt-free busbar elastic wire clamp of the present invention has the following advantages:
A conductive slider for being connected with bus duct is fixed with respectively by an interface arrangment in two draw-in grooves of 1, Bolt-free busbar elastic wire clamp of the present invention.The conductive channel that bus duct and elastic wire clamp are formed by conductive slider electrically communicates.No-voltage between bus duct and elastic wire clamp.When people encounters elastic wire clamp and bus duct, electric current through human body, thus can not avoid the appearance of " hired roughneck " phenomenon; Avoiding the formation of calcium nitrate makes filler strip in a groove stuck, improves safety performance.
2, the length direction along bayonet socket wall on a bayonet socket wall of conductive slider offers the bar shaped perforate running through bayonet socket wall, be on the bayonet socket wall above above-mentioned bar shaped perforate and there is a projection, U-shaped draw-in groove cell wall is provided with a locating notch, when conductive slider is in U-shaped draw-in groove, described projection is arranged in breach.The bayonet socket wall of conductive slider is arranged with bar hole, and make bayonet socket wall be easy to elastic deformation occurs like this, be convenient to be mounted to by conductive slider in U-shaped draw-in groove, structure is simple, is convenient to manufacture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1, Connection Block; 2, nut; 3, conductive slider; 4, spring; 5, backing plate one; 6, backing plate two.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one
Refer to Fig. 1, Bolt-free busbar elastic wire clamp of the present invention comprises Connection Block 1, conductive slider 3, nut 2 and elastic buffer structure.
Connection Block 1 is symmetrically distributed with the U-shaped draw-in groove that can be connected on bus duct two arris, the notch of two U-shaped draw-in grooves is relative, Connection Block 1 has the buffer part be made up of two parallel plates, and above-mentioned nut 2 is through buffer part.
Two conductive sliders 3 are connected in two draw-in grooves respectively by connection structure.Conductive slider 3 is for connecting bus duct and Connection Block 1.Conductive slider 3 is mixed by electrically conductive graphite and carbon fiber, and this conductive slider 3 commercially all has sale, as Qun Xu plastic material Co., Ltd produces and the conductive slider 3 sold.Conductive slider 3 is one to adapt with above-mentioned U-shaped draw-in groove shape and with the U-shaped fixture block of a bayonet socket, when conductive slider 3 is arranged in U-shaped draw-in groove, the bayonet socket of conductive slider 3 and the notch of U-shaped draw-in groove are towards identical.Bus duct is arranged in the bayonet socket of conductive slider 3, and conductive slider 3 avoids bus duct to swing; Meanwhile, conductive slider 3 avoids bus duct directly to contact with the cell wall of two U-shaped draw-in grooves of elastic wire clamp, thus eliminates bus duct owing to being subject to the energy impact of pantograph and the wearing and tearing that cause elastic wire clamp.Length direction along bayonet socket wall on the bayonet socket wall that interface arrangment is included in conductive slider 3 offers the bar shaped perforate running through bayonet socket wall, be on the bayonet socket wall above above-mentioned bar shaped perforate and there is a projection, U-shaped draw-in groove cell wall is provided with a locating notch, when conductive slider 3 is in U-shaped draw-in groove, described projection is arranged in breach.Conductive slider 3 is mixed by electrically conductive graphite and carbon fiber, and conductive slider 3 has certain elasticity.The bayonet socket wall of conductive slider 3 is arranged with bar hole, makes bayonet socket wall be easy to elastic deformation occurs like this, be convenient to conductive slider 3 to be mounted in U-shaped draw-in groove.When installation conductive slider 3 is in U-shaped draw-in groove, press bayonet socket wall towards bar hole generation elastic deformation, the projection on bayonet socket wall snaps in the breach of U-shaped draw-in groove cell wall, and conductive slider 3 is relative with elastic wire clamp with the cooperation of breach fixing by projection.
Attaching parts is the nut 2 of a cylindrical shape, and nut 2 one end has outer-hexagonal head, and the other end of nut 2 is fixed by a jump ring through Connection Block 1.The outer-hexagonal head of nut 2 is positioned at the bottom of Connection Block 1 through Connection Block 1.Connection Block 1 has the buffer part be made up of two parallel plates, nut 2 is through buffer part.Nut 2 is vertical with the plate face of parallel plate.
Elastic buffer structure elastic buffer structure comprises and is set in spring on nut 24 and and is connected in annular backing plate 1 on nut 2 lateral wall, between this spring 4 and annular backing plate 1 two parallel plates all in above-mentioned buffer part.One end of spring 4 is resisted against in above-mentioned buffer part on parallel plate inwall, and the other end is resisted against on above-mentioned annular backing plate 1.Backing plate 1 near the outer-hexagonal head end of nut 2, when outer-hexagonal head be subject to bus duct extruding be subjected to displacement time, the backing plate 1 be connected with nut 2 makes spring 4 that elastic deformation occur, and spring 4 absorbs the impact energy from pantograph.
Embodiment two
Bolt-free busbar elastic wire clamp in the present embodiment is similar on function and structure to the Bolt-free busbar elastic wire clamp of embodiment one.Its difference is: the present embodiment Elastic buffer structure comprises and is set in spring 4 on nut 2 and an annular backing plate 26, nut 2 lateral wall is fixed with annular backing plate 1, between this spring 4, annular backing plate 26 and annular backing plate 1 two parallel plates all in above-mentioned buffer part, one end of described spring 4 is resisted against in above-mentioned buffer part on parallel plate inwall by annular backing plate 6, and the other end is resisted against on above-mentioned annular backing plate 1.Backing plate 1 is near the outer-hexagonal head end of nut 2; Backing plate 26 nut 2 far ultraviolet hexagon-head end and be located between spring 4 and parallel plate.When outer-hexagonal head be subject to bus duct extruding be subjected to displacement time, the backing plate 1 be connected with nut 2 makes spring 4 that elastic deformation occur, and spring 4 absorbs the impact energy from pantograph.Backing plate 26 avoids spring 4 directly to contact with parallel plate, thus eliminates the wearing and tearing of spring 4 pairs of parallel plates, is convenient to the maintenance to whole elastic wire clamp.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (7)
1. a Bolt-free busbar elastic wire clamp, comprise a connecting seat (1), Connection Block (1) is connected with the attaching parts that can be fixed on cantilever, elastic buffer structure is provided with between described Connection Block (1) and attaching parts, it is characterized in that, described Connection Block (1) is symmetrically distributed with the U-shaped draw-in groove that can be connected on bus duct two arris, in two draw-in grooves, is fixed with a conductive slider (3) for being connected with bus duct respectively by an interface arrangment, conductive slider has certain elasticity, described conductive slider (3) is one to adapt with above-mentioned U-shaped draw-in groove shape and with the U-shaped fixture block of a bayonet socket, when conductive slider (3) is arranged in U-shaped draw-in groove, the bayonet socket of conductive slider (3) and the notch of U-shaped draw-in groove are towards identical, length direction along bayonet socket wall on the bayonet socket wall that described interface arrangment is included in conductive slider (3) offers the bar shaped perforate running through bayonet socket wall, be on the bayonet socket wall above above-mentioned bar shaped perforate and there is a projection, U-shaped draw-in groove cell wall is provided with a locating notch, when conductive slider (3) is in U-shaped draw-in groove, described projection is arranged in breach.
2. Bolt-free busbar elastic wire clamp according to claim 1, is characterized in that, the notch of described two U-shaped draw-in grooves is relative.
3. Bolt-free busbar elastic wire clamp according to claim 1, it is characterized in that, another bayonet socket wall of described conductive slider (3) has one turn edge, when conductive slider (3) is in U-shaped draw-in groove, described turning edge is positioned at the cell wall end of U-shaped draw-in groove.
4. Bolt-free busbar elastic wire clamp according to claim 1, it is characterized in that, described attaching parts is the nut (2) of a cylindrical shape, described nut (2) one end has outer-hexagonal head, and the other end of described nut (2) is fixed by a jump ring through Connection Block (1).
5. Bolt-free busbar elastic wire clamp according to claim 4, is characterized in that, described Connection Block (1) has the buffer part be made up of two parallel plates, and above-mentioned nut (2) is through buffer part.
6. Bolt-free busbar elastic wire clamp according to claim 5, it is characterized in that, described elastic buffer structure comprises the spring (4) and be set on nut (2) and is connected in annular backing plate one (5) on nut (2) lateral wall, between this spring (4) and two parallel plates of annular backing plate one (5) all in above-mentioned buffer part, one end of described spring (4) is resisted against in above-mentioned buffer part on parallel plate inwall, and the other end is resisted against on above-mentioned annular backing plate one (5).
7. Bolt-free busbar elastic wire clamp according to claim 5, it is characterized in that, described elastic buffer structure comprises and is set in spring (4) on nut (2) and an annular backing plate two (6), nut (2) lateral wall is fixed with annular backing plate one (5), this spring (4), between annular backing plate two (6) and two parallel plates of annular backing plate one (5) all in above-mentioned buffer part, one end of described spring (4) to be resisted against in above-mentioned buffer part on parallel plate inwall by annular backing plate two (6), the other end is resisted against on above-mentioned annular backing plate one (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310040.7A CN102785590B (en) | 2012-08-28 | 2012-08-28 | Bolt-free busbar elastic wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310040.7A CN102785590B (en) | 2012-08-28 | 2012-08-28 | Bolt-free busbar elastic wire clamp |
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| Publication Number | Publication Date |
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| CN102785590A CN102785590A (en) | 2012-11-21 |
| CN102785590B true CN102785590B (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210310040.7A Active CN102785590B (en) | 2012-08-28 | 2012-08-28 | Bolt-free busbar elastic wire clamp |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101746285B1 (en) * | 2015-10-13 | 2017-06-12 | 엘에스전선 주식회사 | support clamp for conductor rail |
| CN106786292B (en) * | 2017-02-20 | 2018-06-22 | 国家电网公司 | A kind of wire clamp |
| EP4063185A1 (en) * | 2021-03-24 | 2022-09-28 | ALSTOM Transport Technologies | Hanger clamp for holding a conductive profile, rigid overhead catenary system and railtrack comprising such a hanger clamp |
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| US1367598A (en) * | 1920-05-13 | 1921-02-08 | Ohio Brass Co | Trolley-wire clamp |
| GB444466A (en) * | 1935-11-06 | 1936-03-20 | Johannes Hahn | Improvements in and relating to clamps for electric trolley wires |
| CN201217396Y (en) * | 2008-03-26 | 2009-04-08 | 广东兴发铝业有限公司 | Rigid suspension collector-gang positioning lead clip |
| CN201283809Y (en) * | 2008-11-07 | 2009-08-05 | 浙江旺隆轨道交通设备有限公司 | Elastic wire clip of traffic contact system |
| CN201951276U (en) * | 2010-11-22 | 2011-08-31 | 中铁电气化局集团宝鸡器材有限公司 | Elastic positioning wire clamp for busbar |
| CN202782747U (en) * | 2012-08-28 | 2013-03-13 | 浙江旺隆轨道交通设备有限公司 | Boltless busbar elastic cable clamp |
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2012
- 2012-08-28 CN CN201210310040.7A patent/CN102785590B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1367598A (en) * | 1920-05-13 | 1921-02-08 | Ohio Brass Co | Trolley-wire clamp |
| GB444466A (en) * | 1935-11-06 | 1936-03-20 | Johannes Hahn | Improvements in and relating to clamps for electric trolley wires |
| CN201217396Y (en) * | 2008-03-26 | 2009-04-08 | 广东兴发铝业有限公司 | Rigid suspension collector-gang positioning lead clip |
| CN201283809Y (en) * | 2008-11-07 | 2009-08-05 | 浙江旺隆轨道交通设备有限公司 | Elastic wire clip of traffic contact system |
| CN201951276U (en) * | 2010-11-22 | 2011-08-31 | 中铁电气化局集团宝鸡器材有限公司 | Elastic positioning wire clamp for busbar |
| CN202782747U (en) * | 2012-08-28 | 2013-03-13 | 浙江旺隆轨道交通设备有限公司 | Boltless busbar elastic cable clamp |
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| CN102785590A (en) | 2012-11-21 |
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