CN110194060B - Current collector and electric locomotive with same - Google Patents
Current collector and electric locomotive with same Download PDFInfo
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- CN110194060B CN110194060B CN201810164846.7A CN201810164846A CN110194060B CN 110194060 B CN110194060 B CN 110194060B CN 201810164846 A CN201810164846 A CN 201810164846A CN 110194060 B CN110194060 B CN 110194060B
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- fixing
- current collector
- assembly
- base
- connecting shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION 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
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/38—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
- B60L5/39—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails from third rail
Abstract
The invention discloses a current collector and an electric locomotive with the same, wherein the current collector comprises: base, coupling assembling, fixed subassembly and a plurality of collecting head. One end of the connecting assembly is connected with the base, the fixing assembly is rotatably connected with the other end of the connecting assembly, the plurality of collecting heads are arranged on the fixing assembly, and the at least two collecting heads are respectively positioned on two sides of the rotating axis of the fixing assembly. According to the current collector provided by the embodiment of the invention, in the running process of the locomotive, after the collecting head on one side of the rotating axis of the fixing component is impacted and off-line vertically, the collecting head on the other side of the rotating axis of the fixing component is pressed towards the rail surface of the conductor rail, and arc discharge is very likely to occur only when the collecting heads on two sides of the rotating axis of the fixing component are impacted and off-line simultaneously, so that the off-line and arc discharge probability of the current collector is greatly reduced, and the running stability of the locomotive is improved.
Description
Technical Field
The invention relates to the technical field of electric locomotives, in particular to a current collector and an electric locomotive with the same.
Background
The current collector is also called a collector shoe, and is a set of dynamic current collecting equipment which is arranged on a train bogie and is used for dynamically collecting current from a rigid power supply rail (a third rail) for a train so as to meet the power requirement of the train. In the related technology, the collector head of the current collector is impacted to jump perpendicular to the rail surface when the locomotive runs, so that the off-line occurs, and the arc discharge is seriously caused.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a current collector which can reduce the off-line and arc discharge probability.
The invention also provides an electric locomotive with the current collector.
A current collector according to an embodiment of the first aspect of the present invention includes: a base; the connecting assembly is connected with one end of the base; the fixing component is rotatably connected with the other end of the connecting component; the collecting heads are arranged on the fixing component, and at least two collecting heads are respectively positioned on two sides of the rotation axis of the fixing component.
According to the current collector provided by the embodiment of the invention, the plurality of collecting heads are arranged, and at least two collecting heads are respectively positioned at two sides of the rotating axis of the fixing component, so that in the running process of a locomotive, after the collecting head positioned at one side of the rotating axis of the fixing component is impacted and off-line vertically, the collecting head positioned at the other side of the rotating axis of the fixing component is pressed towards the rail surface of the conductor rail certainly, and arc discharge is likely to occur only when the collecting heads positioned at two sides of the rotating axis of the fixing component are impacted and off-line simultaneously, so that the off-line and arc discharge probability of the current collector is greatly reduced, and the running stability of the locomotive is improved.
According to some embodiments of the invention, the number of collector heads is two, the two collector heads being located on either side of the axis of rotation of the stationary assembly.
According to some embodiments of the invention, a first resilient portion is disposed between the fixing member and the connecting member, and the first resilient portion is in a compressed state.
Optionally, the first elastic portion is an elastic plastic part, a spring or a spring plate.
According to some optional embodiments of the invention, the current collector includes a second connecting shaft, the second connecting shaft is connected to the other end of the connecting assembly, the fixing assembly includes a fixing plate, the fixing plate is rotatably sleeved on the second connecting shaft, an axis of the second connecting shaft forms a rotation axis of the fixing assembly, the plurality of current collecting heads are respectively connected to the fixing plate, at least two current collecting heads are respectively located at two sides of the second connecting shaft, and the first elastic portion is arranged between the fixing plate and the connecting assembly.
According to some optional embodiments of the invention, the current collector comprises: the third connecting shaft and the second connecting shaft are vertically intersected with each other, and the second connecting shaft and the third connecting shaft can rotate relatively; the one end of connecting plate with coupling assembling the other end links to each other, the other end of connecting plate with the third connecting axle rotationally connect and in the up-down direction with the fixed plate sets up relatively, the connecting plate with be equipped with second elastic component between the fixed plate, just second elastic component is in compression state.
Optionally, the fixed plates are two and vertically spaced apart, the two fixed plates are respectively rotatably sleeved at two axial ends of the second connecting shaft, the third connecting shaft is located in the accommodating space defined by the two fixed plates, the plurality of current collecting heads are connected with the two fixed plates, at least two current collecting heads are respectively located at two sides of the second connecting shaft, the other end of the connecting plate extends into the accommodating space defined by the two fixed plates and is rotatably connected with the third connecting shaft, and the second elastic part is arranged between the connecting plate and the two fixed plates.
Further, two all the cladding has the elasticity plastic layer on the fixed plate, the elasticity plastic layer is located the fixed plate with part between the coupling assembling constitutes first elastic part, the elasticity plastic layer is located the fixed plate with part between the connecting plate constitutes second elastic part.
According to some embodiments of the invention, each of the collector heads is rotatably connected with the fixing component, a third elastic part is arranged between each of the collector heads and the fixing component, and the third elastic part is in a compressed state.
According to some embodiments of the invention, the current collector comprises a flexible connecting strap, the flexible connecting strap is arranged on the connecting assembly, the flexible connecting strap is provided with a plurality of first terminals and a second terminal, the number of the first terminals is equal to the number of the collector heads, the first terminals are connected in a one-to-one correspondence, and the second terminal is suitable for being connected with a bus bar of an electric locomotive.
Optionally, a connecting seat is arranged on the collector head, accommodating grooves suitable for accommodating the first terminals are formed in the connecting seat, and the number of the accommodating grooves is the same as that of the first terminals and corresponds to that of the first terminals one to one.
Furthermore, the current collector further comprises a cushion block, the cushion block is arranged on one side, away from the collector head, of the first wiring terminal, a groove is formed in the surface, facing the first wiring terminal, of the cushion block, and the first wiring terminal is contained in a positioning space formed by the containing groove and the groove.
According to some embodiments of the invention, the connecting assembly comprises a connecting arm and a connecting rod assembly, one end of the connecting rod assembly is rotatably connected with the base and the other end of the connecting rod assembly is rotatably connected with one end of the connecting arm, the fixing assembly is rotatably connected with the other end of the connecting arm, and a spring is connected between the base and the connecting rod assembly.
Optionally, the link assemblies are two sets, two sets of the link assemblies are respectively located on the base and two sides of the connecting arm, each set of the link assemblies comprises a first connecting rod and a second connecting rod, each of the two ends of the first connecting rod is respectively connected with the base and the connecting arm in a rotatable manner, each of the two ends of the second connecting rod is respectively connected with the base and the connecting arm in a rotatable manner, one end of the spring is connected with the base and the other end of the spring is connected with the first connecting rod.
Further, be equipped with first connecting axle on the base, two the second connecting rod rotationally connects on the first connecting axle, two be connected with the connecting rod between the first connecting rod, be formed with first spacing groove on the first connecting axle, be formed with the second spacing groove on the connecting rod, the both ends of spring have hook portion and two hook portion cooperate respectively first spacing groove second spacing inslot.
According to some optional embodiments of the invention, the current collector comprises: and the limiting piece is used for limiting the rotating position of the second connecting rod and is arranged on the base.
Optionally, a distance between the limiting member and the second link is adjustable.
Further, the locating part comprises a limiting screw and an adjusting nut which are in threaded fit, and the adjusting nut is arranged on the base.
According to some optional embodiments of the invention, the base is provided with a first fixing hole, the second connecting rod is provided with a second fixing hole, and when the second connecting rod rotates to a position where the second fixing hole corresponds to the first fixing hole, the plurality of collector heads are separated from contact with the conductor rail.
An electric locomotive according to an embodiment of a second aspect of the present invention includes: according to the current collector of the embodiment of the first aspect of the present invention, the base is connected to a bogie of the electric locomotive, a plurality of the current collecting heads are adapted to contact a conductive rail of the electric locomotive, and a plurality of the current collecting heads are electrically connected to a bus bar of the electric locomotive.
According to the electric locomotive provided by the embodiment of the second aspect of the invention, the current collector is arranged, so that the off-line and arc discharge probability of the current collector can be greatly reduced, and the running stability of the locomotive is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of the mating of a current collector with a conductive rail according to one embodiment of the invention;
fig. 2 is a schematic diagram of a spring mounting of a current collector according to one embodiment of the invention;
fig. 3 is a schematic assembly diagram of a fixation assembly and a connection arm of a current collector according to an embodiment of the invention;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is an enlarged view at A in FIG. 4;
fig. 6 is a partial top view of a current collector according to one embodiment of the invention;
fig. 7 is a schematic diagram of connection of a collector head and a flexible connecting strap of a current collector according to an embodiment of the invention;
fig. 8 is a schematic view of connection completion of a collector head and a flexible connecting belt of the current collector according to an embodiment of the invention;
fig. 9 is a schematic view of the arrangement of the terminals of the flexible connecting strap of the current collector according to one embodiment of the present invention.
Reference numerals:
a current collector 100;
a base 1; a first fixing hole 11; a connecting portion 12; a first connecting shaft 13; a first limiting groove 131; a stopper 14; a limit screw 141; the protruding end 1411; an adjusting nut 142;
a connecting arm 3; a connecting plate 31;
a second connecting shaft 41; a third connecting shaft 42;
a fixing member 50; a fixed plate 51; an elastic plastic layer 52; a pin shaft 53;
a collector head 6; a connecting seat 7; the lugs 71; a pivot hole 711; an accommodation groove 712;
a soft connection belt 8; a first terminal 81; a cushion block 82; a recess 821; a bolt 83; a second terminal 84; a wire holder 85; a bolt 851;
a bus bar 300.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A current collector 100 according to an embodiment of the present invention is described below with reference to fig. 1-9.
As shown in fig. 1-9, a current collector 100 according to an embodiment of the first aspect of the present invention includes: the base 1, coupling assembling 20, fixed subassembly 50 and a plurality of collecting head 6.
Specifically, one end of the coupling assembly 20 is coupled to the base 1, and the fixing assembly 50 is rotatably coupled to the other end of the coupling assembly 20, whereby the fixing assembly 50 can rotate relative to the coupling assembly 20. The plurality of collector heads 6 are arranged on the fixing assembly 50, and when the fixing assembly 50 rotates relative to the connecting assembly 20, the plurality of collector heads 6 on the fixing assembly 50 also move along with the fixing assembly 50. When the current collector 100 works normally, the plurality of current collecting heads 6 of the current collector 100 are all in contact with the conductor rail 200 of the electric locomotive, so that multi-contact simultaneous power supply is realized. Alternatively, the collector head 6 may be a carbon sled structure.
Wherein at least two collecting heads 6 are respectively positioned at two sides of the rotation axis of the fixing component 50, and the rotation of the fixing component 50 is similar to the function of a seesaw. Therefore, in the running process of the locomotive, after the collecting head 6 on one side of the rotation axis of the fixing assembly 50 is vertically impacted and off-line, the collecting head 6 on the other side of the rotation axis of the fixing assembly 50 is certainly pressed towards the rail surface 201 of the conductor rail 200, and arc discharge is very likely to occur only when the collecting heads 6 on two sides of the rotation axis of the fixing assembly 50 are impacted and off-line simultaneously, so that the off-line and arc discharge probability of the current collector 100 is greatly reduced, and the running stability of the locomotive is improved.
For example, referring to fig. 1 (the line of the X direction in fig. 1 is the extending direction of the power rail 200 of the electric locomotive, -the X direction is opposite to the X direction, the Y direction is perpendicular to the X direction and perpendicular to the rail surface 201 of the power rail 200, -the Y direction is opposite to the Y direction, the Z direction is perpendicular to the plane of the X direction and the Y direction, the Z direction is parallel to the rail surface 201 of the power rail 200, and-the Z direction is opposite to the Z direction), the rotation axis of the fixing member 50 is parallel to the line of the Z direction, the fixing member 50 has a rotational degree of freedom in the Z direction, the fixing member 50 extends in the left-right direction, and at least two collector heads 6 are respectively located on the left and right sides of the rotation axis of the fixing.
Therefore, when the collecting head 6 on the left side is off line due to impact, the collecting head 6 on the right side is pressed towards the rail surface 201 of the conductor rail 200; when the collector head 6 on the right side is off-line due to an impact, the collector head 6 on the left side is pressed against the rail surface 201 of the conductor rail 200. Therefore, when the collector head 6 on one side of the rotation axis of the fixing assembly 50 is impacted and taken off line, the current collector 100 can still be stably attached to the rail surface 201 of the conductor rail 200 through the collector head 6 on the other side of the rotation axis of the fixing assembly 50 to realize current collection, so that stable operation of the locomotive is ensured. And arc discharge is most likely to occur only when the collecting heads 6 on both sides of the rotation axis of the fixing component 50 are subjected to impact off-line, and the probability that the collecting heads 6 on both sides of the rotation axis of the fixing component 50 are subjected to impact off-line in actual conditions is very low, so that the off-line and arc discharge probability of the current collector 100 is greatly reduced, and the running stability of the locomotive is improved.
Alternatively, there may be two collector heads 6, and the two collector heads 6 are located on both sides of the rotation axis of the fixing assembly 50. Of course, the number of the collector heads 6 may be three or more. For example, when there are three collector heads 6, two collector heads 6 may be located on both sides of the rotation axis of the fixing assembly 50 (see the left and right sides in fig. 1), and the other collector head 6 may be located opposite to the rotation axis; for another example, when the number of the collector heads 6 is four, two of the collector heads 6 may be located on one side of the rotation axis of the fixing assembly 50 (see the left side in fig. 1), and the other two collector heads 6 may be located on the other side of the rotation axis of the fixing assembly 50 (see the right side in fig. 1).
Alternatively, the base 1 may be in a bow shape, and the base 1 may be an aluminum alloy or magnesium alloy, so that the base 1 has low mass and high strength. Of course, the base 1 may also be made of non-metal materials such as engineering plastics or engineering ceramics.
According to the current collector 100 provided by the embodiment of the invention, the plurality of collecting heads 6 are arranged, and at least two collecting heads 6 are respectively positioned at two sides of the rotation axis of the fixing assembly 50, so that in the process of running of the locomotive, after the collecting head 6 positioned at one side of the rotation axis of the fixing assembly 50 is impacted and off-line vertically, the collecting head 6 positioned at the other side of the rotation axis of the fixing assembly 50 is necessarily pressed towards the rail surface 201 of the conductor rail 200, and only when the collecting heads 6 positioned at two sides of the rotation axis of the fixing assembly 50 are impacted and off-line simultaneously, arc discharge is likely to occur, so that the probability of off-line and arc discharge of the current collector 100 is greatly reduced, and the running stability of the locomotive is improved.
According to some embodiments of the present invention, referring to fig. 1, 3, 4 and 5, a first elastic portion is disposed between the fixing member 50 and the connecting member 20, and the first elastic portion is in a compressed state. Therefore, a rotating space is formed between the fixing component 50 and the connecting component 20 through the arranged first elastic part, the fixing component 50 has Z-direction rotating capacity and can deflect in a small range, the fixing component 50 and the connecting component 20 are stably and reliably assembled, meanwhile, the fixing component 50 has buffering and resetting capacity, after the fixing component 50 is impacted, the fixing component 50 resets under the driving of the first elastic part, at the moment, the plurality of collector heads 6 arranged on the fixing component 50 are stably contacted with the conductor rail 200 of the electric locomotive, and stable and continuous operation of the locomotive is kept.
The angle of the fixing member 50 rotatable in the Z direction with respect to the connecting member 20 may be set according to the compressible amount of the first elastic portion, and the first elastic portion may be made of a suitable elastic material according to actual needs. When the current collector 100 is assembled, the first elastic part between the fixing member 50 and the connecting member 20 is pre-compressed by the fit therebetween, and the first elastic part is in a compressed state after the assembly of the current collector 100 is completed.
Optionally, the first elastic portion may be an elastic plastic part, a spring part or a spring piece, wherein the spring part may be a pre-pressed micro spring, and the spring piece may be a pre-pressed micro spring.
In some alternative embodiments of the present invention, referring to fig. 1, 3-6 and 9, the current collector 100 includes a second connecting shaft 41, the second connecting shaft 41 is connected to the other end of the connecting assembly 20, the fixing assembly 50 includes a fixing plate 51, the fixing plate 51 is rotatably sleeved on the second connecting shaft 41, an axis of the second connecting shaft 41 forms a rotation axis of the fixing assembly 50, the plurality of collecting heads 6 are respectively connected to the fixing plate 51, at least two collecting heads 6 are respectively located on two sides of the second connecting shaft 41, and a first elastic portion is disposed between the fixing plate 51 and the connecting assembly 20. Therefore, the connecting component 20 and the fixing plate can be connected in a rotating mode conveniently through the arranged second connecting shaft.
For example, in the examples of fig. 1, 3-6 and 9, the fixing plate 51 is coated with the elastic plastic layer 52, and a portion of the elastic plastic layer 52 located between the fixing plate 51 and the connecting assembly 20 constitutes the first elastic portion. Therefore, the fixing plate 51 is coated with the elastic plastic layer 52, so that a portion of the elastic plastic layer 52 located between the fixing plate 51 and the connecting assembly 20 constitutes a first elastic portion, the first elastic portion has a simple structure, and the assembly process of the current collector 100 is simplified. Optionally, the fixing plate 51 may be a metal part, and the elastic plastic layer 52 may be a separately produced part, and the elastic plastic layer 52 is directly sleeved outside the fixing plate 51; alternatively, the fixing plate 51 may be injection-molded, and the elastic plastic layer 52 may be coated on the outside of the fixing plate 51 through an injection molding process.
In some alternative embodiments of the present invention, referring to fig. 1, 3-6, and 9, the current collector 100 includes: a second connecting shaft 41, a third connecting shaft 42, and a connecting plate 31. The second connecting shaft 41 and the third connecting shaft 42 are disposed to intersect perpendicularly with each other, and the second connecting shaft 41 and the third connecting shaft 42 are relatively rotatable. The fixing assembly 50 includes a fixing plate 51, the fixing plate 51 is rotatably sleeved at two axial ends of the second connecting shaft 41, an axis of the second connecting shaft 41 forms a rotation axis of the fixing assembly 50, the plurality of collector heads 6 are all connected with the fixing plate 51, and at least two collector heads 6 are respectively located at two sides of the second connecting shaft 41. One end of the connecting plate 31 is connected to the other end of the connecting assembly 20, the other end of the connecting plate 31 is rotatably connected to the third connecting shaft 42 and is disposed opposite to the fixing plate 51 in the vertical direction, and a second elastic portion is disposed between the connecting plate 31 and the fixing plate 51 and is in a compressed state.
Therefore, the fixing assembly 50 has a small-range deflection, buffering and resetting capability in the Z direction, and the fixing assembly 50 has an X-direction rotational degree of freedom, buffering and resetting capability through the second elastic part arranged between the connecting plate 31 and the two fixing plates 51, for example, in a vehicle body inclined state of a locomotive, the plurality of collector heads 6 on the fixing plates 51 are better contacted with the rail surface 201 through the relative rotation between the fixing plates 51 and the connecting plate 31 in the X direction, and the self-adaptive capability required by the current collector 100 is realized. The angle of the fixing member 50 rotatable in the X direction with respect to the connecting plate 31 can be set according to the compressible amount of the second elastic portion, and the second elastic portion can be made of a suitable elastic material according to actual needs. When the current collector 100 is assembled, the second elastic part located therebetween is pre-compressed by the fit between the fixing plate 51 and the connecting plate 31, and after the assembly of the current collector 100 is completed, the second elastic part is in a compressed state.
Optionally, the second elastic portion may be an elastic plastic part, a spring part or a spring piece, wherein the spring part may be a pre-pressed micro spring, and the spring piece may be a pre-pressed micro spring.
For example, in the example shown in fig. 1, 3-6 and 9, the fixing assembly 50 includes two fixing plates 51 disposed at an interval from top to bottom, the two fixing plates 51 are respectively rotatably sleeved at two ends of the second connecting shaft 41 in the axial direction, the axis of the second connecting shaft 41 constitutes the rotation axis of the fixing assembly 50, the third connecting shaft 42 is located in the accommodating space defined by the two fixing plates 51, the plurality of collector heads 6 are all connected to the two fixing plates 51, at least two collector heads 6 are respectively located at two sides of the second connecting shaft 41, one end of the connecting plate 31 is connected to the other end of the connecting assembly 20, the other end of the connecting plate 31 extends into the accommodating space defined by the two fixing plates 51 and is rotatably connected to the third connecting shaft 42, and a second elastic portion is disposed between the connecting plate 31 and the two fixing plates 51. Therefore, the fixing plate 51 and the connecting plate 31 can rotate relatively in the X direction, and the connecting plate 31 can be better limited in the vertical direction, so that the structural stability of the current collector is further improved.
Further, referring to fig. 1, 3-6 and 9, the two fixing plates 51 are coated with an elastic plastic layer 52, a portion of the elastic plastic layer 52 located between the fixing plate 51 and the connecting assembly 20 constitutes a first elastic portion, and a portion of the elastic plastic layer 52 located between the fixing plate 51 and the connecting plate 31 constitutes a second elastic portion. Therefore, the fixing plate 51 is coated with the elastic plastic layer 52, so that a portion of the elastic plastic layer 52 located between the fixing plate 51 and the connecting assembly 20 forms a first elastic part and a portion of the elastic plastic layer 52 located between the fixing plate 51 and the connecting plate 31 forms a second elastic part, the first elastic part and the second elastic part are simple in structure, and the assembling process of the current collector 100 is simplified. Optionally, the fixing plate 51 may be a metal part, and the elastic plastic layer 52 may be a separately produced part, and the elastic plastic layer 52 is directly sleeved outside the fixing plate 51; alternatively, the fixing plate 51 may be injection-molded, and the elastic plastic layer 52 may be coated on the outside of the fixing plate 51 through an injection molding process.
According to some embodiments of the present invention, referring to fig. 1, 3, 6, 7 and 9, each collector head 6 is rotatably connected with the fixing assembly 50, a third elastic portion is disposed between each collector head 6 and the fixing assembly 50, and the third elastic portion is in a compressed state. Therefore, a rotating space is formed between the collector head 6 and the fixing assembly 50 through the arranged third elastic part, power is provided for resetting of the collector head 6, the collector head 6 has Z-direction rotating capacity relative to the fixing assembly 50, small-range deflection can be achieved, assembling between the collector head 6 and the fixing assembly 50 is stable and reliable, and meanwhile buffering and resetting capabilities are achieved. Because the third elastic part between the current collecting head 6 and the fixing component 50 is pre-pressed, when the rail surface 201 of the conductor rail 200 is non-planar, such as a curved surface, the current collecting head 6 rotates along the Z direction within a small range under the driving of the third elastic part, so that the current collecting head 6 can better attach to the curved rail surface 201, and the current collection quality is improved.
The angle of the collector head 6 rotatable in the Z direction with respect to the fixing assembly 50 can be set according to the compressible amount of the third elastic part, and the third elastic part can be made of a suitable elastic material according to actual needs. When the current collector 100 is assembled, the third elastic part between the current collecting head 6 and the fixing component 50 is pre-pressed by matching between the two, and after the assembly of the current collector 100 is completed, the third elastic part is in a compressed state.
Optionally, the third elastic portion may be an elastic plastic part, a spring part or a spring piece, wherein the spring part may be a pre-pressed micro spring, and the spring piece may be a pre-pressed micro spring.
In an embodiment of the present invention, referring to fig. 1, 3, 6, 7 and 9, the fixing assembly 50 includes a fixing plate 51, the plurality of collector heads 6 are respectively connected to the fixing plate 51, the fixing plate 51 is coated with an elastic plastic layer 52, and a portion of the elastic plastic layer 52 located between the collector heads 6 and the fixing plate 51 constitutes a third elastic portion. Therefore, the fixing plate 51 is coated with the elastic plastic layer 52, so that a portion of the elastic plastic layer 52 located between the collector head 6 and the fixing plate 51 constitutes a third elastic part, the third elastic part has a simple structure, and the assembly process of the current collector 100 is simplified. Optionally, the fixing plate 51 may be a metal part, and the elastic plastic layer 52 may be a separately produced part, and the elastic plastic layer 52 is directly sleeved outside the fixing plate 51; alternatively, the fixing plate 51 may be injection-molded, and the elastic plastic layer 52 may be coated on the outside of the fixing plate 51 through an injection molding process.
According to some embodiments of the present invention, referring to fig. 1, 6-9, the current collector 100 includes a flexible connecting strap 8, the flexible connecting strap 8 is disposed on the connecting assembly 20, the flexible connecting strap 8 has a plurality of first terminals 81 and a second terminal 84, the number of the plurality of first terminals 81 is the same as the number of the plurality of current collecting heads 6, and the plurality of first terminals 81 and the second terminals 84 are connected in a one-to-one correspondence, and the second terminal 84 is adapted to be connected with a bus bar 300 of an electric locomotive. Therefore, the plurality of collecting heads 6 of the current collector 100 can be conveniently electrically connected with the bus 300 of the electric locomotive through the arranged flexible connecting belt 8, multi-contact simultaneous power supply is realized, and the flexible connecting belt 8 can be bent into different shapes and structures according to actual requirements due to the fact that the flexible connecting belt 8 has good flexibility. Alternatively, the soft connecting tape 8 may be a metal foil (e.g., a copper foil) or a metal braid (e.g., a copper braid).
For example, when there are two collecting heads 6, both end portions of the flexible connecting ribbon 8 may serve as first terminals 81 connected to the two collecting heads 6, respectively, and a middle portion of the flexible connecting ribbon 8 may serve as a second terminal 84 (see examples of fig. 1, 6 to 9). For another example, when the number of the collector heads 6 is three or more, two end portions of the flexible connecting tape 8 may serve as two first terminals 81, one or more branch tapes may extend from a main portion of the flexible connecting tape 8 and a corresponding position of the collector head 6, the branch tapes may serve as the first terminals, and a middle portion of the flexible connecting tape 8 may serve as the second terminal.
Further, referring to fig. 1, 6-8, the collector head 6 is provided with the connecting holder 7, the connecting holder 7 is formed with receiving grooves 712 adapted to receive the first terminals 81, the receiving grooves 712 penetrate the connecting holder 7 in the thickness direction of the connecting holder 7, the number of the receiving grooves 712 is the same as the number of the first terminals 81, and the first terminals 81 of the flexible connecting tape 8 are in one-to-one correspondence with the number of the first terminals 81, and when the first terminals 81 of the flexible connecting tape 8 are received in the receiving grooves 712, the first terminals 81 of the flexible connecting tape 8 are in contact with the collector head 6. Therefore, the connection of the first terminal 81 of the flexible connecting band 8 and the current collecting head 6 is facilitated by arranging the connecting seat 7 on the current collecting head 6, and meanwhile, the positioning of the first terminal 81 and the installation of the flexible connecting band 8 are facilitated by arranging the accommodating groove 712 in the connecting seat 7.
Alternatively, referring to fig. 7 and 8, the current collector 100 further includes a cushion block 82, the cushion block 82 is disposed on a side of the first terminal 81 away from the collector 6, a surface of the cushion block 82 facing the first terminal 81 is provided with a groove 821, and the first terminal 81 is accommodated in a positioning space formed by the accommodation groove 712 and the groove 821. Therefore, the cushion block 82 is arranged to play a role in compressing the first terminal 81 of the soft connection belt 8, so that the first terminal 81 of the soft connection belt 8 is in close and reliable contact with the collector head 6, the current collection quality is ensured, meanwhile, the first terminal 81 of the soft connection belt 8 can be well positioned through the cooperation of the groove 821 formed in the cushion block 82 and the accommodating groove 712, and the cushion block 82, the first terminal 81 and the collector head 6 can be connected and fastened through fasteners such as bolts 83 and the like and can be prevented from rotating.
According to some embodiments of the present invention, referring to fig. 1 and 2, the connecting assembly 20 includes a connecting arm 3 and a link assembly having one end rotatably connected to the base 1 and the other end rotatably connected to one end of the connecting arm 3, a fixing assembly 50 rotatably connected to the other end of the connecting arm 3, and a spring 24 connected between the base 1 and the link assembly. Therefore, the current collector 100 has a swinging function to adapt to different working conditions, and meanwhile, the current collecting head 6 is kept in stable contact with the power rail 200 under the action of the elastic force of the spring 24 through the arranged spring 24.
In some alternative embodiments of the present invention, referring to fig. 1 and 2, the two sets of link assemblies are respectively located at two sides of the base 1 and the connecting arm 3, each set of link assemblies includes a first link 21 and a second link 22, two ends of each first link 21 are respectively rotatably connected with the base 1 and the connecting arm 3, two ends of each second link 22 are respectively rotatably connected with the base 1 and the connecting arm 3, one end of the spring 24 is connected with the base 1, and the other end is connected with the two first links 21. Therefore, through the arrangement, the two groups of connecting rod assemblies, the base 1 and the connecting arm 3 jointly form two parallel four-connecting-rod mechanisms, so that the current collector 100 has a swing function to adapt to different working conditions, and the structure of the current collector 100 is more stable and reliable.
Further, referring to fig. 1 and 2, a first connecting shaft 13 is disposed on the base 1, two second connecting rods 22 are rotatably connected to the first connecting shaft 13, a connecting rod 23 is connected between the two first connecting rods 21, two ends of the connecting rod 23 are respectively connected to the two first connecting rods 21, a first limiting groove 131 is formed on the first connecting shaft 13, the first limiting groove 131 can be annular, a second limiting groove 231 is formed on the connecting rod 23, the second limiting groove 231 can be annular, two ends of the spring 24 are provided with hook portions 241, and the two hook portions 241 are respectively matched in the first limiting groove 131 and the second limiting groove 231. Therefore, the installation and the positioning of the spring 24 are facilitated, the spring 24 is prevented from moving in the movement process, and the spring 24 is always in a stretching state so that the current collecting head 6 can be kept in stable contact with the conductor rail 200 under the action of the elastic force of the spring 24.
Alternatively, the spring 24 may be a tension spring, one spring 24 may be provided, and a plurality of (for example, two) springs 24 may be provided. When the springs 24 are multiple, the springs 24 are arranged side by side, the first connecting shaft 13 is correspondingly provided with a plurality of first limiting grooves 131, the first limiting grooves 131 are arranged along the axial direction of the first connecting shaft 13 at intervals, the connecting rod 23 is correspondingly provided with a plurality of second limiting grooves 231, the second limiting grooves 231 are arranged along the axial direction of the connecting rod 23 at intervals, and two ends of each spring 24 are uniformly matched in the first limiting grooves 131 and the second limiting grooves 231 correspondingly.
In some alternative embodiments of the present invention, referring to fig. 1, the current collector 100 includes: the limiting member 14 is used for limiting the rotation position of the second link 22, and the limiting member 14 is disposed on the base 1. Therefore, when the locomotive changes tracks, the position of the conductor rail 200 is changed correspondingly, and the current collector 100 needs to be separated from the original conductor rail 200, be displaced to another conductor rail 200 and be contacted with the rail surface 201 of another conductor rail 200. It can be understood that, during the contact between the collector head 6 of the current collector 100 and the rail surface 201 of the other conductor rail 200, under the elastic force of the above-mentioned spring 24, so that the collector head 6 moves toward the rail surface 201 of the conductor rail 200 (refer to the collector head 6 moving in the-Y direction in fig. 1), the second link 22 rotates clockwise (refer to the e1 direction in fig. 1) around its rotation axis until it contacts the stopper 14, by the stopping and limiting function of the limiting member 14, the second link 22 cannot rotate clockwise, so that the maximum rotation position of the second link 22 in the clockwise direction is limited, when the current collector 6 of the current collector 100 is tightly contacted with the conductor rail 200, the impact force between the current collector 6 of the current collector 100 and the conductor rail 200 can be reduced, the current collector 6 is prevented from being damaged, the service life of the current collector 6 is prolonged, and the use cost is reduced.
Optionally, the distance between the limiting member 14 and the second link 22 is adjustable. Therefore, the distance between the limiting member 14 and the second link 22 can be adjusted as required, so that the maximum rotation position of the second link 22 in the clockwise direction can be adjusted to adapt to different use conditions. It should be noted that the "distance between the limiting member 14 and the second link 22 is adjustable" refers to a distance between an end of the limiting member 14 adjacent to the second link 22 and a straight line of the second link 22 (refer to a distance d in fig. 1).
In an embodiment of the present invention, referring to fig. 1, the position-limiting member 14 includes a position-limiting screw 141 and an adjusting nut 142, which are screw-engaged, and the adjusting nut 142 is disposed on the base 1. Therefore, when the distance between the limiting member 14 and the second connecting rod 22 needs to be adjusted, the limiting screw rod 141 can be screwed, and the length of the extending end 1411 of the limiting screw rod 141 can be adjusted by the threaded fit of the limiting screw rod 141 and the adjusting nut 142, for example, when the length of the extending end 1411 of the limiting screw rod 141 is increased, the distance between the limiting member 14 and the second connecting rod 22 is shortened, and when the length of the extending end 1411 of the limiting screw rod 141 is decreased, the distance between the limiting member 14 and the second connecting rod 22 is increased, so that the distance between the limiting member 14 and the second connecting rod 22 is changed.
According to some alternative embodiments of the present invention, referring to fig. 1 and fig. 2, a first fixing hole 11 is provided on the base 1, a second fixing hole 221 is provided on the second connecting rod 22, when the second connecting rod 22 rotates to a position where the second fixing hole 221 corresponds to the first fixing hole 11, the plurality of current collecting heads 6 are separated from the conductor rail 200, and at this time, the current collector 100 can be separated from the conductor rail 200 for daily maintenance and repair by inserting a pin through the second fixing hole 221 and into the first fixing hole 11 to realize retention and shoe removal. The two second connecting rods 22 may be respectively provided with the second fixing holes 221, and the corresponding position of the base 1 is provided with the two first fixing holes 11, so that the retention and shoe removal can be better achieved, the current collector 100 is better ensured to be separated from the conductive rail 200, and the overall structure of the current collector 100 is stable.
An electric locomotive according to an embodiment of a second aspect of the present invention includes: according to the current collector 100 of the above first embodiment of the present invention, the base 1 is connected to a bogie of an electric locomotive, the plurality of collecting heads 6 are adapted to contact with a power rail 200 of the electric locomotive, and the plurality of collecting heads 6 are electrically connected to a bus bar 300 of the electric locomotive, so that the plurality of collecting heads 6 can simultaneously contact and supply power. It should be noted that the electric locomotive may be provided with one or more of the current collectors 100.
According to the electric locomotive provided by the embodiment of the invention, the current collector 100 is arranged, so that the probability of off-line and arc discharge of the current collector 100 can be greatly reduced, and the running stability of the locomotive is improved.
A current collector 100 according to one embodiment of the present invention is described in detail below with reference to fig. 1-9.
Referring to fig. 1 to 9, in the present embodiment, the current collector 100 includes the base 1, the connection assembly 20, the fixing assembly 50, and two current collecting heads 6. Wherein, the base 1 is in a bow shape, the upper end of the base 1 is provided with a connecting part 12 suitable for being connected with a bogie of the electric locomotive, and the connecting part 12 is in a flat plate shape. The connecting assembly 20 comprises the connecting arm 3 and two groups of connecting rod assemblies, the two groups of connecting rod assemblies are respectively positioned at the left side and the right side of the base 1 and the connecting arm 3, each group of connecting rod assemblies comprises the first connecting rod 21 and the second connecting rod 22, the front end of each first connecting rod 21 is hinged to the lower end of the base 1, the rear end of each first connecting rod 23 is hinged to the front end of the connecting arm 3, the front end of each second connecting rod 22 is hinged to the lower end of the base 1, and the rear end of each second connecting rod 23 is hinged to the front end of the connecting arm 3. The hinged part of each first connecting rod 21 and the base 1 and the connecting arm 3 and the hinged part of each second connecting rod 22 and the base 1 and the connecting arm 3 can be assembled with a needle bearing or can be assembled with a non-metal shaft sleeve with a self-lubricating function, so that the rolling friction can be reduced.
Be connected with above-mentioned connecting rod 23 between two first connecting rods 21, be equipped with first connecting axle 13 on the base 1, two second connecting rods 23 rotationally connect on first connecting axle 13, and spring 24 is for two that set up side by side and all be in tensile state, and two tip of every spring 24 link to each other with first connecting axle 13, connecting rod 23 respectively. The second fixing holes 221 are formed at the end portions of the front ends of the two second links 22, and the first fixing holes 11 are formed at the corresponding positions on the left and right sides of the base 1.
The fixing assembly 50 includes two fixing plates 51 disposed opposite to each other at an interval, the two fixing plates 51 may be disposed in parallel with each other, the rear end of the connecting arm 3 is connected with two of the connecting plates 31, and the two connecting plates 31 are located on the left and right sides of the connecting arm 3. The current collector 100 further includes a second connecting shaft 41 and a third connecting shaft 42 which are vertically crossed with each other, the second connecting shaft 41 and the third connecting shaft 42 can rotate relatively, the two fixing plates 51 can be respectively rotatably sleeved on the upper and lower ends of the second connecting shaft 41, the third connecting shaft 42 is located between the two fixing plates 51, and the two connecting plates 31 can be respectively rotatably sleeved on the left and right ends of the third connecting shaft 42. Wherein, an elastic plastic layer 52 is coated outside each fixing plate 51.
Each collector head 6 is provided with the connecting seat 7, the connecting seat 7 is provided with a lug 71 extending towards the fixing plate 51, a pivot hole 711 is formed in the lug 71, through holes are formed in corresponding positions of the two fixing plates 51, the lug 71 extends between the two fixing plates 51 when the collector head 6 is installed, the pivot hole 711 in the lug 71 is aligned with the through holes in the two fixing plates 51, and the pin shaft 53 penetrates through the two through holes and the pivot hole 711 to realize rotatable connection between the collector head 6 and the fixing plates 51.
The receiving slot 712 is further formed on the connecting seat 7, the current collector 100 further includes the cushion block 82 and the flexible connecting band 8, the groove 821 is formed on the cushion block 82, the flexible connecting band 8 has two first terminals 81 and one second terminal 84, both end portions of the flexible connecting band 8 are bent and form the first terminal 81, the first terminal 81 is parallel to the surface of the collector head 6 facing the first terminal 81, so that the contact area between the first terminal 81 and the collector head 6 can be increased, and the middle portion of the flexible connecting band 8 forms the second terminal 84. The connecting arm 3 is further provided with a wire holder 85, when the collector head 6 and the flexible connecting band 8 are mounted, the first terminal 81 of the flexible connecting band 8 is accommodated in the accommodating groove 712, the cushion block 82 covers the first terminal 81, a part of the first terminal 81 is accommodated in the groove 821 of the cushion block 82, the first terminal 81 and the collector head 6 are tightly connected through the matching of the bolt 83 and the gasket, the second terminal 84 and the bus bar 300 of the locomotive are electrically connected through a bolt 851 on the wire holder 85, for example, the second terminal 84 and the bus bar 300 are both connected with the bolt 851.
Therefore, after the assembly of the current collector 100 is completed, the elastic plastic layer 52 on the fixing plate 51 is in close contact with the connecting arm 3, the connecting plate 31 and the connecting seat 7, and the portion of the elastic plastic layer 52 between the fixing plate 51 and the connecting arm 3, the portion of the elastic plastic layer 52 between the fixing plate 51 and the connecting plate 31 and the portion of the elastic plastic layer 52 between the fixing plate 51 and the connecting seat 7 are pre-pressed to be in a compressed state and respectively form the first elastic portion, the second elastic portion and the third elastic portion. Therefore, the fixed plate 51 and the connecting arm 3 have small-range rotation, buffering and resetting capabilities in the Z direction under the matching of the first elastic part, the fixed plate 51 and the connecting plate 31 have small-range rotation, buffering and resetting capabilities in the X direction under the matching of the second elastic part, and the collector head 6 and the fixed plate 51 have small-range rotation, buffering and resetting capabilities in the Z direction under the matching of the third elastic part. The current collector 100 increases the attaching area with the conductor rail 200, effectively improves the current collection quality, reduces the off-line and arc discharge probability, and improves the stability of locomotive operation.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (18)
1. A current collector, comprising:
a base;
the connecting assembly is connected with one end of the base;
the fixing component is rotatably connected with the other end of the connecting component;
the collecting heads are arranged on the fixing component, and at least two collecting heads are respectively positioned on two sides of the rotation axis of the fixing component;
wherein, coupling assembling includes linking arm and link assembly, link assembly's one end with the base rotationally connect and the other end with the one end of linking arm rotationally connects, fixed subassembly with the other end of linking arm rotationally connects, the base with be connected with the spring between the link assembly, link assembly is two sets of, and is two sets of link assembly is located respectively the base with the both sides of linking arm, every group link assembly includes first connecting rod and second connecting rod, every the both ends of first connecting rod respectively with the base the linking arm rotationally links to each other, every the both ends of second connecting rod respectively with the base the linking arm rotationally links to each other, the one end of spring with the base links to each other and the other end and two first connecting rod links to each other.
2. The current collector of claim 1, wherein there are two collector heads, and the two collector heads are respectively located on two sides of the rotation axis of the fixing assembly.
3. The current collector of claim 1, wherein a first elastic portion is disposed between the fixing component and the connecting component, and the first elastic portion is in a compressed state.
4. The current collector of claim 3, wherein the first elastic portion is an elastic plastic member, a spring or a spring sheet.
5. The current collector according to claim 3, comprising a second connecting shaft, wherein the second connecting shaft is connected to the other end of the connecting assembly, the fixing assembly comprises a fixing plate, the fixing plate is rotatably sleeved on the second connecting shaft, an axis of the second connecting shaft constitutes a rotation axis of the fixing assembly, the plurality of current collecting heads are respectively connected to the fixing plate, at least two current collecting heads are respectively located at two sides of the second connecting shaft, and the first elastic portion is arranged between the fixing plate and the connecting assembly.
6. The current collector of claim 5, comprising:
the third connecting shaft and the second connecting shaft are vertically intersected with each other, and the second connecting shaft and the third connecting shaft can rotate relatively;
the one end of connecting plate with coupling assembling the other end links to each other, the other end of connecting plate with the third connecting axle rotationally connect and in the up-down direction with the fixed plate sets up relatively, the connecting plate with be equipped with second elastic component between the fixed plate, just second elastic component is in compression state.
7. The current collector according to claim 6, wherein the number of the fixing plates is two, the two fixing plates are spaced apart from each other, the two fixing plates are respectively rotatably sleeved at two axial ends of the second connecting shaft, the third connecting shaft is located in a receiving space defined by the two fixing plates, the plurality of current collecting heads are connected to the two fixing plates, at least two current collecting heads are respectively located at two sides of the second connecting shaft, the other end of the connecting plate extends into the receiving space defined by the two fixing plates and is rotatably connected to the third connecting shaft, and the second elastic portion is disposed between the connecting plate and each of the two fixing plates.
8. The current collector according to claim 7, wherein the two fixing plates are covered with an elastic plastic layer, a portion of the elastic plastic layer between the fixing plate and the connecting assembly constitutes the first elastic portion, and a portion of the elastic plastic layer between the fixing plate and the connecting plate constitutes the second elastic portion.
9. The current collector of claim 1, wherein each current collecting head is rotatably connected with the fixing component, a third elastic portion is arranged between each current collecting head and the fixing component, and the third elastic portion is in a compressed state.
10. The current collector of claim 1, comprising a flexible connecting strap disposed on the connecting assembly, the flexible connecting strap having a plurality of first terminals and a second terminal, the number of the plurality of first terminals being the same as the number of the plurality of current collectors and being connected in a one-to-one correspondence, the second terminal being adapted to be connected to a bus bar of an electric locomotive.
11. The current collector according to claim 10, wherein the collector head is provided with connecting seats, the connecting seats are formed with receiving slots adapted to receive the first terminals, and the number of the receiving slots is the same as that of the first terminals and corresponds to one another.
12. The current collector of claim 11, further comprising a spacer block disposed on a side of the first terminal away from the collector head, wherein a surface of the spacer block facing the first terminal is provided with a groove, and the first terminal is accommodated in a positioning space formed by the accommodation groove and the groove.
13. The current collector according to claim 1, wherein a first connecting shaft is disposed on the base, two second connecting rods are rotatably connected to the first connecting shaft, a connecting rod is connected between the two first connecting rods, a first limiting groove is formed on the first connecting shaft, a second limiting groove is formed on the connecting rod, hook portions are disposed at two ends of the spring, and the two hook portions are respectively engaged with the first limiting groove and the second limiting groove.
14. The current collector of claim 1, comprising: and the limiting piece is used for limiting the rotating position of the second connecting rod and is arranged on the base.
15. The current collector of claim 14, wherein a distance between the stop and the second link is adjustable.
16. The current collector of claim 15, wherein the limiting member comprises a limiting screw and an adjusting nut, which are engaged with each other, and the adjusting nut is disposed on the base.
17. The current collector according to claim 1, wherein a first fixing hole is formed in the base, a second fixing hole is formed in the second connecting rod, and when the second connecting rod rotates to a position where the second fixing hole corresponds to the first fixing hole, the plurality of current collecting heads are separated from the conductive rail.
18. An electric locomotive, comprising: the current collector as claimed in any one of claims 1 to 17, wherein the base is connected to a bogie of the electric locomotive, a plurality of the collector heads are adapted to contact a conductor rail of the electric locomotive, and a plurality of the collector heads are electrically connected to a bus bar of the electric locomotive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810164846.7A CN110194060B (en) | 2018-02-27 | 2018-02-27 | Current collector and electric locomotive with same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810164846.7A CN110194060B (en) | 2018-02-27 | 2018-02-27 | Current collector and electric locomotive with same |
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| CN110194060A CN110194060A (en) | 2019-09-03 |
| CN110194060B true CN110194060B (en) | 2021-04-20 |
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| CN201810164846.7A Active CN110194060B (en) | 2018-02-27 | 2018-02-27 | Current collector and electric locomotive with same |
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| CN112874308B (en) * | 2019-11-29 | 2022-08-09 | 比亚迪股份有限公司 | Collector head and collector shoe with same |
| DE102020108329A1 (en) | 2020-03-26 | 2021-09-30 | Deutzer Technische Kohle Gmbh | Pantograph arrangement |
| CN114103649B (en) * | 2020-08-31 | 2023-11-14 | 比亚迪股份有限公司 | Collector shoe and vehicle with same |
| CN114407666B (en) * | 2021-12-09 | 2024-04-30 | 安徽盛世高科轨道装备有限公司 | Upper contact current collector capable of maintaining contact force by self weight |
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