CN106183829B - A kind of edge copper deicing carbon slipper - Google Patents

A kind of edge copper deicing carbon slipper Download PDF

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Publication number
CN106183829B
CN106183829B CN201610717376.3A CN201610717376A CN106183829B CN 106183829 B CN106183829 B CN 106183829B CN 201610717376 A CN201610717376 A CN 201610717376A CN 106183829 B CN106183829 B CN 106183829B
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China
Prior art keywords
ice
breaking
carbonaceous plate
item
filler rod
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CN201610717376.3A
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CN106183829A (en
Inventor
黄科诚
柳国庆
张旭
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LIAONING HONGDE ELECTRIC CARBON PRODUCT Co Ltd
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LIAONING HONGDE ELECTRIC CARBON PRODUCT Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/02Current collectors for power supply lines of electrically-propelled vehicles with ice-removing device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/04Current collectors for power supply lines of electrically-propelled vehicles using rollers or sliding shoes in contact with trolley wire
    • B60L5/08Structure of the sliding shoes or their carrying means
    • B60L5/085Structure of the sliding shoes or their carrying means with carbon contact members

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

The present invention relates to EMU electric locomotive power receiving device technical fields, refer specifically to a kind of edge copper deicing carbon slipper;Including carbonaceous plate, the carbonaceous plate is equipped with filler rod slot, and filler rod slot is arranged along carbonaceous plate length direction, and filler rod slot is set to rectangular slot structure setting between carbonaceous plate top surface and leading flank;Copper ice-breaking item is equipped in the filler rod slot, ice-breaking item is fixedly connected with carbonaceous plate in integral structure.Structure of the invention is reasonable, and copper ice-breaking item carries out reinforcing compensation to carbonaceous plate, improves its wear-resisting and impact resistance, and main line is avoided to freeze to the traumatogenic problem of carbonaceous plate, improves the safety of power grid and rolling stock operation;There is ice-breaking sword, trash ice, water droplet can be cast aside outward along surface groove and scattered ice curved surface, improve whole stability in use and service life on shock surface on front side of ice-breaking item.

Description

A kind of edge copper deicing carbon slipper
Technical field
The present invention relates to EMU electric locomotive power receiving device technical fields, refer specifically to a kind of edge copper deicing carbon slipper.
Background technique
High iron chute board is one of the power delivery member that high-speed rail train connects with power transmission main line above rail.Slide plate uses carbonaceous knot Structure, in material priority, slide plate hardness is less than main line hardness, prevents plowing from main line.Therefore slide plate is also high-speed rail locomotive Consumables.In the north, sleet or after snowing, main line freezes sometimes, the hardness of ice not in design limit of consideration, therefore because The case where ice wound slide plate, happens occasionally.Slide plate can generate irregular notch Yi Dan by rigid wound rather than after fair wear and tear, And when notch and primary line contact, it will generate electric arc, serious burn will be caused to main line after generating electric arc, cause to stop when serious Fortune.Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide one kind is compact-sized, deicing is wear-resisting, peace Stable edge copper deicing carbon slipper entirely.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of edge copper deicing carbon slipper of the present invention, including carbonaceous plate, the carbonaceous plate are equipped with filler rod slot, filler rod Slot is arranged along carbonaceous plate length direction, and filler rod slot is set to rectangular slot structure setting between carbonaceous plate top surface and leading flank;Institute It states and is equipped with copper ice-breaking item in filler rod slot, ice-breaking item is fixedly connected with carbonaceous plate in integral structure.
According to above scheme, the leading flank of the carbonaceous plate is equipped with the wedge-shaped indentation of several connection filler rod slots, several wedges V notch v is arranged along filler rod slot interval, and at least there are two wedge-shaped indentations to be accordingly set under carbonaceous plate and power grid contact portion Side;The bottom surface of the ice-breaking item is equipped with several dovetail fixture blocks, and several dovetail fixture blocks are inlaid in respectively in corresponding wedge-shaped indentation.
According to above scheme, the bottom surface of the carbonaceous plate is equipped with fixing bolt, and fixing bolt passes vertically through filler rod slot bottom It is connect behind face with ice-breaking item.
According to above scheme, the inboard face of the ice-breaking item is equipped with several forcible entry notches.
According to above scheme, the leading flank of the ice-breaking item is equipped with the surface groove being recessed inwardly, surface groove and ice-breaking item Upper side be crossed to form ice-breaking sword.
According to above scheme, the scattered ice curved surface that is equipped between the surface groove bottom edge and ice-breaking leading flank.
According to above scheme, the surface groove and projection angle of the ice-breaking leading flank on vertical section 0 ° -15 ° it Between.
According to above scheme, ice-breaking sword surface has the chamfering of arc or plane, and the chamfering width of ice-breaking sword exists Between 0.2mm-0.8mm.
According to above scheme, the bottom surface of the carbonaceous plate, which is equipped with, strengthens aluminium base, and the both ends for strengthening aluminium base are equipped with contrary flexure portion.
It is Nian Jie by adhesive between the ice-breaking item and filler rod slot, carbonaceous plate and reinforcing aluminium base according to above scheme In integral structure;The reinforcing aluminium base is equipped with several wedge-shaped indentation extensions with the cooperation of dovetail fixture block, the fixing bolt It is arranged in and strengthens in aluminium base and connect respectively with carbonaceous plate, ice-breaking item in integral structure.
The invention has the following beneficial effects: structure of the invention is reasonable, reinforcing compensation is carried out to carbonaceous plate using copper ice-breaking item, Its wear-resisting and impact resistance is improved, avoids the main line at sleet season from freezing to the traumatogenic problem of carbonaceous plate, improves electricity The safety of net and rolling stock operation;There is ice-breaking sword on shock surface on front side of ice-breaking item, trash ice, water droplet can along surface groove and It dissipates ice curved surface to cast aside outward, can avoid mixture of ice and water and only deposited on carbonaceous plate, improve whole stability in use and service life.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention;
Fig. 2 is configuration schematic diagram of the invention;
Fig. 3 is the portion A enlarged structure schematic diagram in Fig. 2.
In figure:
1, carbonaceous plate;2, ice-breaking item;11, contrary flexure portion;12, filler rod slot;13, wedge-shaped indentation;14, fixing bolt;15, strengthen Aluminium base;21, dovetail fixture block;22, notch is dismantled;23, surface groove;24, ice-breaking sword;25, ice curved surface is dissipated.
Specific embodiment
Technical solution of the present invention is illustrated with embodiment with reference to the accompanying drawing.
As shown in Figure 1-3, a kind of edge copper deicing carbon slipper of the present invention, including carbonaceous plate 1, the both ends of carbonaceous plate 1 It is equipped with contrary flexure portion 11, the carbonaceous plate 1 is equipped with filler rod slot 12, and filler rod slot 12 is arranged along 1 length direction of carbonaceous plate, and filler rod Slot 12 is set to rectangular slot structure setting between 1 top surface of carbonaceous plate and leading flank;Copper ice-breaking is equipped in the filler rod slot 12 Item 2, ice-breaking item 2 are fixedly connected with carbonaceous plate 1 in integral structure;The main body of the carbonaceous plate 1 and contrary flexure portion 11 as pantograph Structure, carbonaceous plate 1 is contacted with power transmission power grid receives electric power to electric locomotive;Its top in electric locomotive operational process of carbonaceous plate 1 Face is slided along power transmission main line, and the ice-breaking item 2 in the filler rod slot 12 of front side forms relative motion with main line first, and ice-breaking item 2 rushes The condensation ice cube hung from above on main line is hit to avoid damaging carbonaceous plate 1;The hardness of copper ice-breaking item 2 is between carbonaceous plate 1 and send Between electric main line, even if the hardness of ice also can be neglected during electric locomotive high-speed cruising, therefore pass through ice-breaking item 2 structural strengths can effectively make up the wear-resisting and impact resistance of carbonaceous plate 1, reduce the notch phenomenon of arc discharge probability that its breakage generates, Improve the security and stability of motor locomotive and the operation of power transmission main line.
The leading flank of the carbonaceous plate 1 is equipped with the wedge-shaped indentation 13 of several connection filler rod slots 12, several wedge-shaped indentations 13 It is spaced and is arranged along filler rod slot 12, and at least there are two the lower sections that wedge-shaped indentation 13 is accordingly set to carbonaceous plate 1 and power grid contact portion; The bottom surface of the ice-breaking item 2 is equipped with several dovetail fixture blocks 21, and several dovetail fixture blocks 21 are inlaid in corresponding wedge-shaped indentation respectively In 13;The ice-breaking item 2 is the structure setting mutually agreed with filler rod slot 12, before the setting of ice-breaking item 2 makes it in filler rod slot 12 Side and upper limb with 1 flush of carbonaceous plate, use up-small and down-big dovetail fixture block 21 with jib and cotter on the bottom surface of ice-breaking item 2 V notch v 13, and then ice-breaking item 2 is fixedly connected on vertical direction and horizontal cross with carbonaceous plate 1, ice-breaking item 2 is replaced It can be gone out from 12 front side of filler rod slot when maintenance, to facilitate whole assembly and later maintenance work;And wherein two groups of wedges The tie point of v notch v 13 and dovetail fixture block 21 is arranged in the both ends of filler rod slot 12, and connecing in carbonaceous plate 1 and power grid main line Below contact, its object is to improve the connective stability between ice-breaking item 2 and carbonaceous plate 1, in carbon slipper opposite with main line In operational process, the problem of ice-breaking item 2 is vibrated and impacts appearance separation deformation is reduced.
The bottom surface of the carbonaceous plate 1 is equipped with fixing bolt 14, fixing bolt 14 pass vertically through behind 12 bottom surface of filler rod slot with Ice-breaking item 2 connects;The fixing bolt 14 is used to be that ice-breaking item 2 forms a fixed connection with carbonaceous plate 1 on horizontal longitudinal direction, carbonaceous Plate 1 is realized by the cooperation of above-mentioned wedge-shaped indentation 13 and dovetail fixture block 21 and ice-breaking item 2 is integrally fixedly connected, and ice-breaking item Support on 2 level is longitudinal by 12 trailing flank of filler rod slot, therefore fixing bolt 14 is only used as horizontal longitudinal anchor point, Ice-breaking item 2 is avoided to fall off when being vibrated in filler rod slot 12 problem.
The inboard face of the ice-breaking item 2 is equipped with several forcible entry notches 22;The forcible entry notch 22 be used for by ice-breaking item 2 from It is dismantled on carbonaceous plate 1, the hardness and wearability of ice-breaking item 2 are different from carbonaceous plate 1, therefore as the resistance to master being hit with ice-breaking Body, the service life of ice-breaking item 2 and damaged probability are greater than carbonaceous plate 1, carry out maintenance and repair by replacement and to ice-breaking item 2, can Reduce whole use cost.
The leading flank of the ice-breaking item 2 is equipped with the surface groove 23 being recessed inwardly, the upper side of surface groove 23 and ice-breaking item 2 It is crossed to form ice-breaking sword 24;The leading flank of the ice-breaking item 2 is the face that is hit, and the seamed edge between its leading flank and upper side is Be hit side, and surface groove 23, which is recessed inwardly, makes it in vertical section projection respectively with the upper side of ice-breaking item 2 and leading flank in sharp Angle setting, and then the ice-breaking sword 24 with sharp edge is formed between the leading flank and upper side of ice-breaking item 2, it can effectively improve brokenly Deicing effect, impact resistant strength and the service life of ice item 2.
The scattered ice curved surface 25 being equipped between 23 bottom edge of surface groove and 2 leading flank of ice-breaking item, the impact of ice-breaking sword 24 make Ice on main line slides downwards along surface groove 23, and being further advanced by scattered ice curved surface 25 leaves the motion profile of ice parabolically Ice-breaking item 2 prevents the generation of ponding ice from reducing ice-breaking item 2 to avoid retention problems of the ice on ice-breaking item 2 and carbonaceous plate 1 Deicing effect.
The surface groove 23 and 2 leading flank of ice-breaking item in the projection angle on vertical section between 0 ° -15 °, the projection Angle is the deicing section angle of ice-breaking sword 24, and the deicing section angle of currently preferred ice-breaking sword 24 is between 3 ° -5 °.
24 surface of ice-breaking sword has the chamfering of arc or plane, and the chamfering width of ice-breaking sword 24 is in 0.2mm- Between 0.8mm, the wearability and impact resistant strength of ice-breaking item 2 is can be improved in the chamfering on 24 surface of ice-breaking sword, to improve whole The service life of body.
The bottom surface of the carbonaceous plate 1, which is equipped with, strengthens aluminium base 15, and the both ends for strengthening aluminium base 15 are equipped with contrary flexure portion 11;It is described strong Change aluminium base 15 and 1 integrally connected of carbonaceous plate to improve overall structural strength, and then strengthens aluminium base 15 and pass through the connection structure of adaptation 1 entirety of carbonaceous plate is assembled on locomotive power receiving device.
It is Nian Jie in one knot by adhesive between the ice-breaking item 2 and filler rod slot 12, carbonaceous plate 1 and reinforcing aluminium base 15 Structure;Pass through first between the carbonaceous plate 1 and ice-breaking item 2 and reinforcing aluminium base 15 in assembly and be adhesively fixed, so as to effective Whole assembly efficiency and mutual cooperation precision are improved, the reinforcing aluminium base 15 is equipped with several and dovetail fixture block 21 and cooperates 13 extension of wedge-shaped indentation, the fixing bolt 14 be arranged in strengthen aluminium base 15 on and respectively with carbonaceous plate 1, ice-breaking item 2 connect It connects in integral structure.
The above description is only a preferred embodiment of the present invention, thus it is all according to the configuration described in the scope of the patent application of the present invention, The equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.

Claims (6)

1. a kind of edge copper deicing carbon slipper, including carbonaceous plate (1), it is characterised in that: the carbonaceous plate (1) is equipped with filler rod slot (12), filler rod slot (12) is arranged along carbonaceous plate (1) length direction, and filler rod slot (12) is set to carbonaceous plate (1) top surface and leading flank Between at right angles slot structure setting;It is equipped with copper ice-breaking item (2) in the filler rod slot (12), ice-breaking item (2) and carbonaceous plate (1) It is fixedly connected in integral structure;The hardness of copper ice-breaking item (2) is between carbonaceous plate (1) and power transmission main line;
The leading flank of the ice-breaking item (2) is equipped with the surface groove (23) being recessed inwardly, and surface groove (23) is upper with ice-breaking item (2) Side is crossed to form ice-breaking sword (24);
The leading flank of the carbonaceous plate (1) is equipped with the wedge-shaped indentation (13) of several connections filler rod slot (12), several wedge-shaped indentations (13) it is spaced and is arranged along filler rod slot (12), and be at least accordingly set to carbonaceous plate (1) there are two wedge-shaped indentation (13) and connect with power grid The lower section of contact portion;The bottom surface of the ice-breaking item (2) is equipped with several dovetail fixture blocks (21), and several dovetail fixture blocks (21) are embedded in respectively In corresponding wedge-shaped indentation (13);
The bottom surface of the carbonaceous plate (1) is equipped with fixing bolt (14), and fixing bolt (14) passes vertically through filler rod slot (12) bottom surface It is connect afterwards with ice-breaking item (2);
The inboard face of the ice-breaking item (2) is equipped with several forcible entry notches (22).
2. edge copper deicing carbon slipper according to claim 1, it is characterised in that: surface groove (23) bottom edge and ice-breaking item (2) the scattered ice curved surface (25) being equipped between leading flank.
3. edge copper deicing carbon slipper according to claim 1, it is characterised in that: the surface groove (23) and ice-breaking item (2) Leading flank is in the projection angle on vertical section between 0 ° -15 °.
4. edge copper deicing carbon slipper according to claim 1, it is characterised in that: ice-breaking sword (24) surface has arc Or the chamfering of plane, and the chamfering width of ice-breaking sword (24) is between 0.2mm-0.8mm.
5. edge copper deicing carbon slipper according to claim 1, it is characterised in that: (1 bottom surface is equipped with strong the carbonaceous plate Change aluminium base (15), the both ends for strengthening aluminium base (15) are equipped with contrary flexure portion (11).
6. edge copper deicing carbon slipper according to claim 5, it is characterised in that: the ice-breaking item (2) and filler rod slot (12), Nian Jie by adhesive between carbonaceous plate (1) and reinforcing aluminium base (15) is in integral structure;The reinforcing aluminium base (15) is equipped with Several wedge-shaped indentation (13) extensions with dovetail fixture block (21) cooperation, the fixing bolt (14), which is arranged in, strengthens aluminium base (15) It above and is respectively connect with carbonaceous plate (1), ice-breaking item (2) in integral structure.
CN201610717376.3A 2016-08-24 2016-08-24 A kind of edge copper deicing carbon slipper Active CN106183829B (en)

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Application Number Priority Date Filing Date Title
CN201610717376.3A CN106183829B (en) 2016-08-24 2016-08-24 A kind of edge copper deicing carbon slipper

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CN106183829A CN106183829A (en) 2016-12-07
CN106183829B true CN106183829B (en) 2019-01-22

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109050263B (en) * 2018-09-30 2020-06-16 大同新成新材料股份有限公司 Carbon slide plate assembly of pantograph
CN109703372A (en) * 2019-02-22 2019-05-03 中铁建电气化局集团康远新材料有限公司 A kind of rail traffic pantograph-catenary current collection system and its installation method
CN111204227A (en) * 2020-02-24 2020-05-29 扬州润中信息科技有限公司 Cable guiding device
CN112776607A (en) * 2021-03-24 2021-05-11 辽宁红德电碳制品有限公司 Carbon slide plate capable of removing ice from two sides
FR3145516A1 (en) 2023-02-02 2024-08-09 SNCF Voyageurs ANTI-ICING PROTECTION DEVICE FOR A WEAR STRIP OF A PANTOGRAPH OF A RAIL VEHICLE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2162379Y (en) * 1993-04-10 1994-04-20 北京粉末冶金厂 Machinery compound pantograph operating slide
CN101327750A (en) * 2007-06-18 2008-12-24 上海磁浮交通工程技术研究中心 Composite power supply rail and method for producing the same
CN103057423A (en) * 2013-01-28 2013-04-24 辽宁工程技术大学 Pantograph head structure capable of reducing offline rate of pantograph-contact line of electric locomotive
CN203543697U (en) * 2013-09-30 2014-04-16 北京万高众业科技发展有限公司 Pantograph carbon sliding plate
CN206012354U (en) * 2016-08-24 2017-03-15 辽宁红德电碳制品有限公司 A kind of edge copper deicing carbon slipper

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6271403A (en) * 1985-09-24 1987-04-02 Japanese National Railways<Jnr> Snow and ice adhesion preventive pantagraph shoe body

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2162379Y (en) * 1993-04-10 1994-04-20 北京粉末冶金厂 Machinery compound pantograph operating slide
CN101327750A (en) * 2007-06-18 2008-12-24 上海磁浮交通工程技术研究中心 Composite power supply rail and method for producing the same
CN103057423A (en) * 2013-01-28 2013-04-24 辽宁工程技术大学 Pantograph head structure capable of reducing offline rate of pantograph-contact line of electric locomotive
CN203543697U (en) * 2013-09-30 2014-04-16 北京万高众业科技发展有限公司 Pantograph carbon sliding plate
CN206012354U (en) * 2016-08-24 2017-03-15 辽宁红德电碳制品有限公司 A kind of edge copper deicing carbon slipper

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