A kind of locomotive low-voltage dc power supply draws car ground rail Two purpose carrier
The present invention relates to a kind of car that draws of electric locomotive, relate in particular to a kind of locomotive low-voltage dc power supply and draw car ground rail Two purpose carrier.
Electric locomotive falls after bow disengages network source in pantograph, need to use ground power supply with electric locomotive traction in the maintenance storehouse, and the traction electric locomotive moves in the maintenance storehouse, perhaps from the maintenance storehouse with electric locomotive traction outside the maintenance storehouse.
Because it is external direct current 600V that the original design power supply of HXD3 type electric locomotive draws car, but the voltage that present existing power supply draws car is low-voltage direct 60V, and this can not accomplish the task of drawing HXD3 electric locomotive warehouse-in.And if dispose the mains connection set of an output direct current 600V in the storehouse in addition in maintenance, its equipment investment is bigger, and because the voltage of direct current 600V is higher; It is longer to draw car miles of relative movement; The feed cable of direct current 600V mops floor and uses inconvenience, also has the hidden danger of person electric shock injury, and uses the supply convertor of special use that low voltage DC 60V voltage transformation is DC600V voltage; Mop floor though solved the DC600V feed cable, need a dead lift.
Summary of the invention
Technical matters to be solved by this invention provides a kind of simple and easy to do and can draw in the car process locomotive low-voltage dc power supply that replaces a dead lift supply convertor in low pressure and draw car ground rail Two purpose carrier.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of locomotive low-voltage dc power supply draws car ground rail Two purpose carrier; Comprise supporting plate and be fixed on push rod on the described supporting plate, be used for and the separable connecting device of electric locomotive bonded assembly; Supply convertor is placed on the described supporting plate, and the bottom of described supporting plate is connected to ground wheel and at least two rail wheels.
Described connecting device is the connection structure of tow chain, hauling rope, hook, permanent magnet or other easy disassembly of captiveing joint with described supporting plate.
Compared with prior art, advantage of the present invention is because supply convertor is placed on this Two purpose carrier, when dolly carrying supply convertor moves on ground, and the ground wheel of dolly supporting plate bottom, in ground surface, rail wheel is unsettled, can artificially carry out dolly; When drawing the car operation, connecting device is connected with the electric locomotive car body, and rail wheel contacts with rail; The ground wheel is unsettled; Electric locomotive promotes when drawing car and moving or the pulling dolly, and rail wheel rolls on rail, with the same moved further of locomotive; Be implemented in the 600V feed cable relative fixed and the same moved further of drawing electric locomotive and supply convertor output in the car process, replace a dead lift supply convertor; And Two purpose carrier is connected with electric locomotive through separable connecting device, can realize the same moved further of dolly and locomotive, can realize separating of dolly and locomotive again.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in the figure; A kind of locomotive low-voltage dc power supply draws car ground rail Two purpose carrier; Travelling car comprises supporting plate 1 and is fixed on push rod 2, the tow chain 3 on the supporting plate 1; The bottom of supporting plate 1 is connected with 11 and two rail wheels 12 of ground wheel, and the end of tow chain 3 is provided with hook 31, and supply convertor 4 is placed on the supporting plate 1.
In the foregoing description, tow chain 3 can use the connection structure of hauling rope, hook, permanent magnet or other easy disassembly to substitute.