CN207861733U - Prevent the ground connection of a bridge power failure from bending - Google Patents

Abstract

The utility model is related to a kind of ground connection preventing a bridge power failure to bend, include the ground connection bow being connect with the anode bow driving motor of pantograph and its ground connection bow head, the ground connection bow head top is hinged flexible linkage mechanism, the anode bow driving motor connection that flexible linkage mechanism passes through pulley blocks driving mechanism and pantograph, it is hinged with balancing pole and upper arm respectively to be grounded bow head, the upper arm other end is hinged with pull rod one end, the pull rod other end is hinged with pedestal, the balancing pole other end is hinged with underarm upper end, underarm upper end is simultaneously hinged with upper arm, underarm lower end is hinged with sketch plate, and constitute double leval jib flexibility linkage mechanism.Advantageous effect：The four-bar mechanism that the utility model is driven using steel wire rope and pulley blocks, when causing ground connection bow to flick due to ground wire, driving steel wire rope can be in slack rope state, will not have any impact to the work of anode bow.And ground connection bow does not influence to be normally grounded work in torque spring and the state that under the action of dead weight can resume work.

Description

Prevent the ground connection of a bridge power failure from bending

Technical field

The utility model belongs to power supply technique field more particularly to a kind of ground connection preventing a bridge power failure is bent.

Background technology

At present in port container terminal operation field, field bridge often wants ground on the scene to move as delivery vehicle.Along field bridge On the path of transverse shifting, equipped with power supply electrode line, negative line and the ground wire arranged from top to bottom, field bridge by being arranged thereon The anode bow and cathode bow of pantograph are obtained with electrode line, negative line sliding contact respectively, and the potential accumulated on the bridge of field then leads to The ground connection bow sliding contact ground wire for crossing cathode bow lower part is released.When bridge transition region leaves operation field on the spot, needing will just Pole bow, cathode bow and ground connection bow are packed up.The prior art is made the two using the cathode bow connection of ground connection bow upper end and pantograph Conjoined structure realizes that folding and unfolding linkage, the structure belong to rigid connection folding and unfolding linkage, and ground connection bow slides on ground wire frequent occurrence connects It touches when hitting, so that ground connection is bent and flick suddenly, cause cathode connected to it to bend also while flicking and being detached from negative line, cause Field bridge powers off suddenly.Patent document publication number 205346661U discloses a kind of ground connection bow of anti-field bridge power failure, including upper The vertical frame plate 1 of end connection cathode bow and the bow head 2 connected in the vertical frame plate lower end, the bow head 2 are perpendicular by being equipped with The support plate 21 of straight hinge axis 22, be symmetrically hinged on 22 both sides of vertical hinged shaft left and right articulated jib 231,232, be separately positioned on The vertical brush 251,252 of the cunning brush power ground of left and right articulated jib end and the spring 24 being connected between the articulated jib of left and right It constituting, the bow head 2 is mounted on the bottom end of vertical frame plate 1 by support plate 21, and the angle α between the articulated jib of left and right is 100 °- 170°.Vertical frame plate 1 is divided into the upper and lower frames frame plate 11,12 being hinged by horizontal hinge shaft 3, and installs one in horizontal hinge shaft 3 Two force sides of torsional spring 4, the torsional spring are pressed on respectively on upper and lower frames frame plate 11,12, the lower frame frame plate 12 under original state The plate face of plate face opposed vertical upper frame plate 11 to vertical brush cant angle degree θ be 15 ° -30 °.This patented technology can be delayed The phenomenon that rigid linkage structure of the solution prior art causes a bridge power failure.But, however it remains problem：Although ground connection bow with Cathode bow forms non-rigid connection by torsional spring, but under natural conditions and non-fully smooth due to being grounded, and the torque of torsional spring It is not easy to control, bridge is under the traversing conventional operating mode of 2m/s high speeds on the spot, and ground connection bow still holds in sliding contact on ground wire Shock is easily caused, ground connection bow is made to flick suddenly, cause cathode bow connected to it also while flicking and being detached from negative line, leads to field Bridge powers off suddenly, into shutdown status, seriously affects normal operation.Further, since the flatness of ground rail and non-ideal shape State, field bridge can have the displacement of vertical direction during transverse shifting, will also result in ground connection bow and are detached from ground wire, to make accumulation Potential cannot discharge in time, and there are the danger of device electrification.

Utility model content

Connecing for a bridge power failure is prevented purpose of the utility model is to overcome the shortcomings of the above technology, and to provide a kind of Ground bends, and can eliminate ground connection bow bounce and take the influence of electricity to pantograph, and compensate for since field bridge offset deviation causes Ground connection bow is detached from the hidden danger of ground wire, it is ensured that field bridge normal power supply.

The utility model to achieve the above object, using following technical scheme：It is a kind of to prevent the ground connection of bridge power failure Bow includes the ground connection bow being connect with the anode bow driving motor of pantograph and its is grounded bow head, it is characterized in that：The ground connection bow head Top is hinged flexible linkage mechanism, the anode bow driving motor that flexible linkage mechanism passes through pulley blocks driving mechanism and pantograph Connection, the flexibility linkage mechanism includes upper arm, pull rod, balancing pole and underarm, the ground connection bow head respectively with balancing pole and upper Arm is hinged, and the upper arm other end is hinged with pull rod one end, and the pull rod other end is hinged with pedestal, on the balancing pole other end and underarm End is hinged, and underarm upper end is simultaneously hinged with upper arm, and underarm lower end is hinged with sketch plate, and the upper arm, pull rod and underarm constitute four and connect Bar flexibility linkage mechanism.

The pulley blocks driving mechanism includes top sheave, intermediate pulley group, lower sheave group and steel wire rope, the top sheave with The anode bow holder pin joint of pantograph, intermediate pulley group and pedestal pin joint, lower sheave group and base bottom pin joint, the steel wire rope Upper end and anode bow driving motor are affixed, and steel wire rope passes sequentially through top sheave, intermediate pulley group and lower sheave group and is hinged on bottom The sketch plate of seat bottom end is affixed, and pulley blocks and steel wire rope constitute pulley blocks driving mechanism.

The underarm is connect by being grounded lower bow limb torsional spring with sketch plate.

Advantageous effect：Compared with prior art, the four-bar mechanism that the utility model is driven using steel wire rope and pulley blocks, And the secondary part that the mechanism is pantograph, drive steel wire rope, and ground connection lower bow limb to turn round by the compression of pantograph motor push rod The reversed traction of spring makes ground connection bow head stretch out.Thus, the torque of torsional spring and the pulling force of steel wire rope make vertical brush be adjacent in power supply Sliding brush is carried out on ground wire, even if bridge on the scene since the unsmooth generation of wire body is hit makes ground connection bow flick in laterally moving In the case of, since pantograph is hinged with ground connection bow four-bar mechanism, and the stroke of push-rod electric machine is in stretching or two kinds of shapes of retracting It is definite value under state, pantograph will not flick generation hardness linkage because of ground connection bow, can effectively prevent a bridge power-off.In addition it connects The dead weight of ground bow and the torsional moment of torsional spring drive steel wire tensioning that ground connection bow is made to return again, have apparent cushioning effect, there is no harm in Hinder a bridge to continue release accumulation potential, ensures not charged in the bridge device of field, safety.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is ground connection bow and the structural schematic diagram of pantograph connected to it；

Fig. 3 is the structural schematic diagram that prior art field is bent with bridging.

In figure：5, anode bow driving motor, 6, top sheave, 7, steel wire rope, 8, intermediate pulley group, 9, lower sheave group, 13, connect Ground lower bow limb torsional spring, 14, sketch plate, 15, ground connection bow head, 16, upper arm, 17, pull rod, 18, balancing pole, 19, underarm, 20, pedestal, 26, pantograph, 26-1, holder.In Fig. 3：1, vertical frame plate, 11, upper frame plate, 12, lower frame frame plate, 2, bow head, 21, support Plate, 22, vertical hinged shaft, 231, right articulated jib, 232, left articulated jib, 24, spring, 251-252, vertical brush, 3 horizontal hinge shafts, 4, torsional spring.

Specific implementation mode

Specific embodiment of the present utility model is described in detail with reference to preferred embodiment.

Attached drawing is referred to, a kind of ground connection preventing a bridge power failure is present embodiments provided and bends, include and pantograph 26 The ground connection bow of anode bow driving motor connection and its ground connection bow head 15, the ground connection bow head top are hinged flexible linkage mechanism, Flexible linkage mechanism passes through the anode bow driving motor connection of pulley blocks driving mechanism and pantograph, the flexibility linkage mechanism packet Upper arm 16, pull rod 17, balancing pole 18 and underarm 19 are included, the ground connection bow head is hinged with balancing pole and upper arm respectively, the upper arm The other end is hinged with pull rod one end, and the pull rod other end is hinged with pedestal 20, and the balancing pole other end is hinged with underarm upper end, on underarm It holds and hinged with upper arm, underarm lower end is hinged with sketch plate 14, and the upper arm, pull rod and underarm constitute double leval jib flexibility gear Structure.The pulley blocks driving mechanism includes top sheave 6, intermediate pulley group 8, lower sheave group 9 and steel wire rope 7, the top sheave with The anode bow holder 26-1 pin joints of pantograph, intermediate pulley group and the middle of the base pin joint, lower sheave group and base bottom pin joint, institute State steel wire rope upper end and anode bow driving motor 5 it is affixed, steel wire rope pass sequentially through top sheave, intermediate pulley group and lower sheave group with The sketch plate 14 for being hinged on pedestal bottom end is affixed, and pulley blocks and steel wire rope constitute pulley blocks driving mechanism.The underarm is by connecing Ground lower bow limb torsional spring 13 is connect with sketch plate.

Operation principle

The compression of anode bow driving motor drives steel wire rope, and the stroke of anode bow driving motor is being stretched out or retracted two kinds It is definite value under state, the reversed traction of ground connection lower bow limb torsional spring makes ground connection bow head keep stretching out, steel wire rope and ground connection lower bow limb Torsional spring is non-rigid traction, and pantograph with ground connection bow four-bar mechanism be it is hinged, even if bridge on the scene laterally move in by In the case that the unsmooth generation shock of wire body makes ground connection bow flick, pantograph will not flick generation firmly because of ground connection bow Property linkage, the power-off of bridge can be effectively prevent.The dead weight for being grounded bow and the reversed torsional moment for being grounded lower bow limb torsional spring can connect Ground bow flick in the case of drive again steel wire tensioning make ground connection bow return, have apparent cushioning effect, do not interfere bridge after Continuous release accumulation potential, ensures not charged in the bridge device of field, safety.

It is above-mentioned with reference to embodiment to this it is a kind of prevent a bridge power failure ground connection bow carry out detailed description, be illustrative Without being restrictive, several embodiments can be enumerated according to limited range, therefore total not departing from the utility model Change and modification under body design, should belong within the scope of protection of the utility model.

Claims (3)

1. a kind of ground connection preventing a bridge power failure is bent, include ground connection connect with the anode bow driving motor of pantograph bend and It is grounded bow head, it is characterized in that：The ground connection bow head top is hinged flexible linkage mechanism, and flexible linkage mechanism passes through pulley blocks The anode bow driving motor connection of driving mechanism and pantograph, the flexibility linkage mechanism include upper arm, pull rod, balancing pole and under Arm, the ground connection bow head is hinged with balancing pole and upper arm respectively, and the upper arm other end is hinged with pull rod one end, the pull rod other end Hinged with pedestal, the balancing pole other end is hinged with underarm upper end, and underarm upper end is simultaneously hinged with upper arm, and underarm lower end is hinged with abnormity Plate, the upper arm, pull rod and underarm constitute double leval jib flexibility linkage mechanism.

2. the ground connection according to claim 1 for preventing a bridge power failure is bent, it is characterized in that：The pulley blocks driving mechanism Including top sheave, intermediate pulley group, lower sheave group and steel wire rope, the anode bow holder pin joint of the top sheave and pantograph, in Between pulley blocks and pedestal pin joint, lower sheave group and base bottom pin joint, it is affixed that the steel wire rope upper end and anode bend driving motor, It is affixed with the sketch plate that is hinged on pedestal bottom end that steel wire rope passes sequentially through top sheave, intermediate pulley group and lower sheave group, pulley blocks Pulley blocks driving mechanism is constituted with steel wire rope.

3. the ground connection according to claim 1 for preventing a bridge power failure is bent, it is characterized in that：The underarm is bent by being grounded Underarm torsional spring is connect with sketch plate.