CN107618403A - A kind of dropper - Google Patents

A kind of dropper Download PDF

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Publication number
CN107618403A
CN107618403A CN201710841462.XA CN201710841462A CN107618403A CN 107618403 A CN107618403 A CN 107618403A CN 201710841462 A CN201710841462 A CN 201710841462A CN 107618403 A CN107618403 A CN 107618403A
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CN
China
Prior art keywords
clamper tube
pressure pipe
dropper
hanger ear
pipe piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710841462.XA
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Chinese (zh)
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CN107618403B (en
Inventor
何春天
阳光武
肖守讷
杨冰
朱涛
秦亚航
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Southwest Jiaotong University
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Southwest Jiaotong University
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Priority to CN201710841462.XA priority Critical patent/CN107618403B/en
Publication of CN107618403A publication Critical patent/CN107618403A/en
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Publication of CN107618403B publication Critical patent/CN107618403B/en
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Abstract

The invention provides a kind of dropper, belongs to electric railway traction power supply unit technical field.Including pressure pipe piston, clamper tube and hanger ear, clamper tube is that central upper portion is provided with axial blind hole, and bottom is provided with U-shaped jag, and two yoke bottoms are equipped with through hole；One end of dropper line at the top of pressure pipe piston with passing through stamping connection, the external diameter of pressure pipe piston lower portion coordinates with the axial blind hole inwall on clamper tube top, hanger ear is provided with the U-shaped jag of clamper tube bottom, bolt is fixed through the through hole and hanger ear of two yoke bottoms by nut, the jaws of hanger ear and the engagement of contact line are fixed, and pressure pipe piston is fixed by the piston cap above clamper tube.It is mainly used in the hanging of electric railway traction contact net for power supplying cable.

Description

A kind of dropper
Technical field
The invention belongs to electric railway traction power supply unit technical field.
Background technology
Existing Contact Net's Suspension Chord has dropper, link dropper and rigid dropper.But it is used in the contact of high-speed railway This online some dropper all have stranded, to fracture with impact failure situation, and this seriously affects the row of bullet train Car safety.As train running speed further improves, this, which also becomes, influences safe for operation most prominent of bullet train Problem.It has been investigated that the final cause for causing such problem is pantograph and the temporary impact load of contact net.But use The dropper of resistance to shock loads is also not used in dropper structure.
The content of the invention
It is an object of the invention to provide a kind of dropper, it can be efficiently solved between bow net caused by shock loading Shock loading, the problem of strands stress concentration and energy dissipation.
The mesh of the present invention is achieved through the following technical solutions：A kind of dropper, including pressure pipe piston, clamper tube And hanger ear, clamper tube are that central upper portion is provided with axial blind hole, bottom is provided with U-shaped jag, and two yoke bottoms are equipped with logical Hole；One end of dropper line passes through stamping connection, external diameter and the clamper tube top of pressure pipe piston lower portion with the top of pressure pipe piston Axial blind hole inwall coordinates, and hanger ear, through hole of the bolt through two yoke bottoms are provided with the U-shaped jag of clamper tube bottom Fixed with hanger ear by nut, the jaws of hanger ear and the engagement of contact line are fixed, and pressure pipe piston is pressed by clamping Piston cap above pipe is fixed.
The pressure pipe piston lower portion outer surface is the structure with sealing ring..
The clamper tube inwall is air cylinder structure.
It is with interior hexagonal groove on the outside of the through hole of described two yoke bottoms of clamper tube.
Clamper tube and hanger ear the contact surface is wear pattern surface..
Further, pressure pipe piston and dropper line are manually or electric hydraulic pincers use a positive two anti-three indentation methods pressure It is connected together, the pressure pipe piston other end is coupled by the air pressure of inside and outside by sealing ring and clamper tube and can keep one Fixed external and internal pressure is poor, and the suspension force that ensure that dropper is steady state value in static state.
Together with clamper tube is bolted with hanger ear, wherein on the outside of the through hole of two yoke bottoms of clamper tube For with interior hexagonal groove, this groove can prevent the relative displacement of screw bolt and nut, and can also inwardly tense clamper tube Two yoke bottoms, make to produce between two yoke lower inside walls of clamper tube and hanger ear certain extruding force and Frictional force is produced when hanger ear and clamper tube relative motion, and is dissipated due to energy caused by impact.
The present invention compared with prior art the advantages of and effect：It is this integrally to be hung using friction and the shock resistance of air damping String, it is a kind of structure type of dropper, make use of the friction between hanger ear and clamper tube to consume because wire clamp is rushing Caused energy in rotation is hit, is also reduced using the air pressure between clamper tube and pressure pipe piston is viscid due to the vertical punching of pantograph Vertical impact caused by hitting between wire clamp, contact net and dropper.With shock resistance significant effect, energy absorption is rapid, structure Compact, small volume, quality are small, are easily installed the advantages that replacing is safeguarded.
Brief description of the drawings
Fig. 1 is left view of the present invention
Fig. 2 is the partial sectional view (pneumatic cushioning mechanism) of the present invention
Fig. 3 is the partial sectional view (friction damping mechanism) of the present invention
Fig. 4 is general structure graphics of the present invention
Embodiment
As shown in figure 1, a kind of dropper, including pressure pipe piston 2, clamper tube 3 and hanger ear 5；Dropper line 1 and pressure pipe For piston 2 by extruding or stamping connection, the lower external face of pressure pipe piston 2 is the structure with sealing ring, and sealing ring external diameter is pressed with pincers The axial blind hole inwall on the top of pipe 3 coordinates, and hanger ear 5 is provided with the U-shaped jag of the bottom of clamper tube 3, and bolt 6 is pitched through two The through hole and hanger ear 5 of arm bottom are fixed by nut 4, and the engagement of the jaws and contact line 7 of hanger ear 5 is fixed, Pressure pipe piston 2 is fixed by the piston cap 8 of the top of clamper tube 3.Pressure pipe piston 2 limits maximum by the piston cap 8 of welding Vertical deviation.
Be pneumatic cushioning mechanism shown in Fig. 2, pressure pipe piston 2 and dropper line 1 manually or electric hydraulic pincers using one just The indentation methods of two Fan tri- are crimped together, and are formd and are fitted close and are fixed together, pressure pipe piston 2 and clamper tube 3 pass through The inside and outside differential pressure that sealing cavity is formed links together, and is recessed with interior hexagonal on the outside of the through hole of two yoke bottoms of clamper tube Groove.The groove to be matched with nut shape is with for installation bolt.
It is friction damping mechanism shown in Fig. 3, to 3 lower end of clamper tube two when assembling clamper tube 3 and hanger ear 5 Yoke, which applies prestressing force, to be enable bolt 6 to be just stuck in interior hexagonal groove and ensures that the displacement of its opposing nut 4 keeps constant. The radial displacement of clamper tube 3 and hanger ear 5 can be so limited, while and can makes to exist between clamper tube 3 and hanger ear 5 Frictional force and pretightning force.
The friction that this structure can be efficiently utilized between hanger ear 5 and clamper tube 3 is consumed because wire clamp is rushing Caused energy in rotation is hit, is also reduced using the air pressure between clamper tube 3 and pressure pipe piston 2 is viscid because pantograph is vertical Vertical impact caused by Contact -impact net between wire clamp, contact net and dropper.It is fast with shock resistance significant effect, energy absorption Fast, compact-sized, small volume, quality are small, are easily installed the advantages that replacing is safeguarded.
Embodiment of the present invention does not form the limitation to the application scope, every in present inventive concept Within spirit and principle, all any modification, equivalent and improvement that one of skill in the art can make etc. should be included in Within protection scope of the present invention.

Claims (5)

1. a kind of dropper, including pressure pipe piston (2), clamper tube (3) and hanger ear (5), it is characterised in that：Clamper tube (3) axial blind hole is provided with for central upper portion, bottom is provided with U-shaped jag, and two yoke bottoms are equipped with through hole；Dropper line (1) The top of one end and pressure pipe piston (2) by stamping connection, the external diameter of pressure pipe piston (2) bottom with the clamper tube (3) of sealing The axial blind hole inwall in portion coordinates, and hanger ear (5) is provided with the U-shaped jag of clamper tube (3) bottom, and bolt (6) passes through two The through hole and hanger ear (5) of yoke bottom are fixed by nut (4), the jaws of hanger ear (5) and the groove of contact line (7) Engagement is fixed, and pressure pipe piston (2) is fixed by the piston cap (8) above clamper tube (3).
A kind of 2. dropper according to claim 1, it is characterised in that：Pressure pipe piston (2) lower external face is Structure with sealing ring.
A kind of 3. dropper according to claim 1, it is characterised in that：Clamper tube (3) inwall is air cylinder structure.
4. a kind of dropper according to claim 1, it is characterised in that described (3) two yoke bottoms of clamper tube It is with interior hexagonal groove on the outside of through hole.
5. a kind of dropper according to claim 1, it is characterised in that the clamper tube (3) and hanger ear (5) connect It is wear pattern surface to touch surface.
CN201710841462.XA 2017-09-18 2017-09-18 Integral hanger Active CN107618403B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710841462.XA CN107618403B (en) 2017-09-18 2017-09-18 Integral hanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710841462.XA CN107618403B (en) 2017-09-18 2017-09-18 Integral hanger

Publications (2)

Publication Number Publication Date
CN107618403A true CN107618403A (en) 2018-01-23
CN107618403B CN107618403B (en) 2023-07-07

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Application Number Title Priority Date Filing Date
CN201710841462.XA Active CN107618403B (en) 2017-09-18 2017-09-18 Integral hanger

Country Status (1)

Country Link
CN (1) CN107618403B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2683778A1 (en) * 2018-07-27 2018-09-27 Universidad Politécnica de Madrid RIGIDITY COMPENSATOR FOR RIGID CATENARY SYSTEMS (Machine-translation by Google Translate, not legally binding)
CN112721746A (en) * 2021-02-02 2021-04-30 中铁二院工程集团有限责任公司 Integral dropper device suitable for large-carrying-capacity electrified railway contact network system
CN113696796A (en) * 2021-08-27 2021-11-26 中车青岛四方机车车辆股份有限公司 Contact net anti-galloping device and rail vehicle

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GB362932A (en) * 1930-03-23 1931-12-07 Siemens Ag Improved method of damping the mechanical oscillations of overhead electrical conductors
CH185356A (en) * 1935-03-06 1936-07-15 Aluminium Ind Ag Vibration damper.
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JPH0674462U (en) * 1993-03-31 1994-10-21 三和テッキ株式会社 Magnetic damper for train lines
JPH08244501A (en) * 1995-03-14 1996-09-24 Sanwa Tekki Corp Electric overhead line supporting device
JPH0911777A (en) * 1995-06-28 1997-01-14 Sanwa Tekki Corp Hanging and fixing device of hanger ear of electric-car line
JPH09226417A (en) * 1996-02-29 1997-09-02 Railway Technical Res Inst Overhead line structure for electric traction
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US6378848B1 (en) * 1999-07-08 2002-04-30 Nkh Spring Co., Ltd. Gas spring apparatus
CN2614974Y (en) * 2003-03-13 2004-05-12 姜丰收 Differential plunger type hydraulic tension compensation device
JP2005501207A (en) * 2002-08-21 2005-01-13 ロード コーポレーション Magnetically actuated motion control device
JP2008018774A (en) * 2006-07-11 2008-01-31 Railway Technical Res Inst Suspension device for trolley wire
JP2009096301A (en) * 2007-10-16 2009-05-07 Sanwa Tekki Corp Hanging wire protective cover for adjusting hanging position
JP2012116418A (en) * 2010-12-03 2012-06-21 Sanwa Tekki Corp Suspension device for trolley wire
JP2015131621A (en) * 2014-01-15 2015-07-23 三和テッキ株式会社 Trolley wire suspending device
KR101540263B1 (en) * 2015-04-21 2015-07-30 한국철도공사 Monitoring System for Sliding Surface of Electric Car Line
CN104979790A (en) * 2015-07-18 2015-10-14 国网山东蓬莱市供电公司 Phase-to-phase spacer spring damping device
CN205256055U (en) * 2015-11-23 2016-05-25 中法高速铁路技术(西安)有限公司 Thimble does not have bolt clamp dropper device
CN105650350A (en) * 2016-03-30 2016-06-08 江苏科技大学 Vibration-reducing anti-impact pipeline hanging rack
CN106515514A (en) * 2016-11-30 2017-03-22 西南交通大学 Compression connecting device capable of accurately controlling press-in amount of dropper of railway pantograph-catenary system
CN207241483U (en) * 2017-09-18 2018-04-17 西南交通大学 A kind of dropper

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* Cited by examiner, † Cited by third party
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GB362932A (en) * 1930-03-23 1931-12-07 Siemens Ag Improved method of damping the mechanical oscillations of overhead electrical conductors
CH185356A (en) * 1935-03-06 1936-07-15 Aluminium Ind Ag Vibration damper.
GB520470A (en) * 1938-12-16 1940-04-24 Frederick Cook Improvements in or relating to current collectors for electric vehicles
GB657735A (en) * 1948-04-06 1951-09-26 Omnium Lyonnais Elastic hanger for tramcar current-supply overhead lines
GB918317A (en) * 1961-02-24 1963-02-13 Nhk Spring Co Ltd Composite catenary overhead contact wire systems
EP0581987A1 (en) * 1992-08-05 1994-02-09 OFFICINA FRATELLI BERTOLOTTI S.p.A. A system to improve the electrical collection by the pantographs of an electromotive train
JPH0658370A (en) * 1992-08-11 1994-03-01 Mitsubishi Heavy Ind Ltd Vibration control device for cable
JPH06171402A (en) * 1992-12-04 1994-06-21 Railway Technical Res Inst Hanger ear with damper
JPH0674462U (en) * 1993-03-31 1994-10-21 三和テッキ株式会社 Magnetic damper for train lines
JPH08244501A (en) * 1995-03-14 1996-09-24 Sanwa Tekki Corp Electric overhead line supporting device
JPH0911777A (en) * 1995-06-28 1997-01-14 Sanwa Tekki Corp Hanging and fixing device of hanger ear of electric-car line
JPH09226417A (en) * 1996-02-29 1997-09-02 Railway Technical Res Inst Overhead line structure for electric traction
FR2749102A1 (en) * 1996-05-24 1997-11-28 Fav Lcab Displacement control device for insulators on overhead high tension power lines
JPH11157368A (en) * 1997-11-26 1999-06-15 Sanwa Tekki Corp Trolley line follow-up device of guide roller
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CN104979790A (en) * 2015-07-18 2015-10-14 国网山东蓬莱市供电公司 Phase-to-phase spacer spring damping device
CN205256055U (en) * 2015-11-23 2016-05-25 中法高速铁路技术(西安)有限公司 Thimble does not have bolt clamp dropper device
CN105650350A (en) * 2016-03-30 2016-06-08 江苏科技大学 Vibration-reducing anti-impact pipeline hanging rack
CN106515514A (en) * 2016-11-30 2017-03-22 西南交通大学 Compression connecting device capable of accurately controlling press-in amount of dropper of railway pantograph-catenary system
CN207241483U (en) * 2017-09-18 2018-04-17 西南交通大学 A kind of dropper

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2683778A1 (en) * 2018-07-27 2018-09-27 Universidad Politécnica de Madrid RIGIDITY COMPENSATOR FOR RIGID CATENARY SYSTEMS (Machine-translation by Google Translate, not legally binding)
CN112721746A (en) * 2021-02-02 2021-04-30 中铁二院工程集团有限责任公司 Integral dropper device suitable for large-carrying-capacity electrified railway contact network system
CN112721746B (en) * 2021-02-02 2023-01-20 中铁二院工程集团有限责任公司 Integral dropper device suitable for large-carrying-capacity electrified railway contact network system
CN113696796A (en) * 2021-08-27 2021-11-26 中车青岛四方机车车辆股份有限公司 Contact net anti-galloping device and rail vehicle

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