CN103587533A - Accumulator disc type electric locomotive - Google Patents

Abstract

The invention discloses a battery disc electric locomotive, which comprises a vehicle frame, a driver's cab is arranged at one end of the vehicle frame, a battery is arranged at the upper part of the vehicle frame, and a running device is installed at the bottom of the vehicle frame, and the running device passes through the connection between the bearing boxes at both ends and the vehicle frame. The guide plate brackets are connected together, and the running device includes a pair of wheels installed on both sides of the frame, the wheel axle, the bearing boxes at both ends of the axle, the gear box in the middle of the wheel, the elastic coupling, the disc-type brushless DC traction motor, the wheel axle and the gear box The power input shaft of the gearbox is connected to the output shaft of the disc-type brushless DC traction motor through an elastic coupling, and the disc-type DC brushless traction motor is connected to the DC frequency conversion speed controller through a signal transmission line. Compared with the AC variable-frequency electric locomotive popularized and used today, the present invention has the characteristics of large output torque, smooth speed regulation, rapid electric braking response, short braking distance, high safety, no harmonic interference and low failure rate.

Description

A battery disc electric locomotive

technical field

The invention relates to the technical field of electric locomotives, in particular to a battery disc electric locomotive.

Background technique

Now there are new types of chopper speed-regulating electric locomotives and AC variable-frequency speed-regulating electric locomotives on the market. However, for chopper speed-regulating electric locomotives, although they can steplessly adjust the speed, the motors used are still DC brushed motors. There are commutator copper bars and carbon brushes on the DC motor rotor that are easy to wear and tear; for AC variable frequency speed regulation electric locomotives, although the speed can be adjusted steplessly and there is no brush on the motor, the magnetic field still needs to be charged to establish. It is easy to generate harmonic interference, especially the underground interference to the communication network. Simultaneous starting is prone to shock. The braking of the two electric locomotives mainly depends on the mechanical braking of the hand wheel. When the operator manipulates the mechanical braking device of the hand wheel, the labor intensity is high, the braking force and braking time vary from person to person, and the braking is slow; The pipeline paths are not equal, and the braking force is not synchronized or equal, resulting in vibration or track jumping when the locomotive wheels and brake shoes are superimposed, long braking distance, poor braking performance, large and fast brake shoe wear, and poor safety performance.

Contents of the invention

The technical problem to be solved by the present invention is to provide a battery disc electric locomotive, which has stable starting, large starting torque, good braking performance, high safety performance and low maintenance cost.

In order to achieve the above object, the present invention provides the following technical solutions: a battery disc electric locomotive, including a frame, the frame includes a frame structure composed of steel plates on both sides, a middle partition plate, steel plates at both ends and a steel plate at the bottom. One end of the frame is provided with a driver's cab, the top of the frame is provided with a battery, the battery is fixed on the top of the frame through a bracket, and a running device is installed at the bottom of the frame, and the running device includes two pairs of wheels installed on both sides of the frame, Axle, gear box, elastic coupling, disc-type brushless DC traction motor and two pairs of bearing boxes on both sides of the frame. The bearing boxes are connected to the guide bracket of the frame in a floating connection. The centers of each pair of wheels are respectively connected to the axle. The axles are all connected to the output end of the gearbox, and the two ends of each axle are rollingly connected with the bearing box. The input end of the gearbox is connected to the disc-type brushless DC traction motor through an elastic coupling, and the disc-type brushless DC traction motor The signal transmission line is connected to the explosion-proof DC frequency conversion speed regulator, and the explosion-proof DC frequency conversion speed regulator includes a controller, a control device and a box body, and the flame-proof DC frequency conversion speed regulator is installed in the cab.

Preferably, mechanical braking devices are installed at both ends of the traveling device close to the cab.

Preferably, a sand spreading device is installed on the rail surface of the wheels of the traveling device.

Preferably, the front upper part of the driver's cab is provided with a lighting lamp, and a horn is fixedly installed on one side of the lighting lamp.

Compared with the traditional AC frequency conversion motor locomotive, the invention has the characteristics of large output torque, smooth speed regulation, smooth braking and rapid braking response. The invention supplies power to the explosion-proof DC variable frequency governor in the cab through the battery, and the driver detects the motor through the control signal given by the flameproof DC variable frequency governor and the position sensor of the installed disc-type brushless DC traction motor. The position of the rotor, and according to the position signal of the rotor to trigger the electronic commutation circuit control switch to turn on and off, so as to control the power on and off of the stator winding, to realize electronic commutation, that is, to realize non-contact commutation, so that the disc type The DC brushless traction motor generates power, and the power generated by the disc brushless DC traction motor rotates the wheel shaft through the torque conversion and speed change of the gearbox, and the wheel shaft drives the wheel to rotate. The method generates power and realizes the stepless speed regulation of the locomotive, thus avoiding the problems of starting shock and unsmooth starting when the locomotive starts at zero speed. When the locomotive needs to be braked, turn the speed control handle of the explosion-proof DC frequency converter to the braking position to generate electromagnetic braking force. The DC brushless traction motor rotates to realize the electric braking of the locomotive. This electric braking method has fast response, synchronous braking of the front and rear wheels, and basically equal braking force of the wheels, which eliminates the vibration or derailment of the locomotive during braking, so the braking performance is excellent. , the safety of the whole vehicle is good, and the reverse electric energy generated during braking can charge the battery and save electricity.

A mechanical brake device is installed at both ends of the traveling device close to the cab for auxiliary braking; a sanding device is installed on the rail surface of the wheel of the traveling device. When the friction between the track and the wheel decreases, the sanding device passes through the track Sprinkle sand to increase the friction between the wheel and the track; install a general DC frequency converter in the cab, which is convenient for the driver to control; the front outer surface of the cab is equipped with a lighting lamp, and a horn is fixedly installed on one side of the lighting lamp, which is convenient for the driver Observe the track condition in front of the locomotive in the dark environment, and at the same time warn the people ahead to avoid.

Description of drawings

Fig. 1 is the front view of the present invention;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is the left view of the present invention;

Fig. 4 is a structural schematic diagram of the mechanical braking device of the present invention.

Among them, 1. Frame 2. Cab 3. Battery 4. Wheel 5. Gear box 6. Elastic coupling 7. Wheel shaft 8. Disc brushless DC traction motor 9. Explosion-proof DC inverter 10. Mechanical brake device 11. Sand spreading device 12. Driver's seat 13. Lighting lamp 14. Horn 15. Bearing box.

Detailed ways

Below in conjunction with accompanying drawing, by describing embodiment, the present invention will be further described:

As shown in Fig. 1, Fig. 2 and Fig. 3, the battery disc electric locomotive of the present invention includes a vehicle frame 1, and the vehicle frame 1 includes a frame type formed by welding steel plates on both sides, a middle partition plate, steel plates at both ends and a bottom steel plate. structure, one end of the vehicle frame 1 is provided with a cab 2, the top of the vehicle frame 1 is provided with a battery 3, the battery 3 is fixed on the top of the vehicle frame 1 through a bracket, and the bottom of the vehicle frame 1 is equipped with a running device, and the running device Including two pairs of wheels 4 installed on both sides of the frame, wheel shaft 7, reduction box 5, elastic coupling 6, disc type DC brushless traction motor 8 and two pairs of bearing boxes 15 on both sides of the frame 1, the bearing box 15 It is floatingly connected with the guide plate bracket of the vehicle frame 1, the center of each pair of wheels 4 is respectively connected with the wheel shaft 7, each wheel shaft 7 is connected with the large spur gear of the reduction box 5, and the two ends of each wheel shaft 7 are rollingly connected with the bearing housing 15, The input end of the reduction box 5 is connected to the disc-type brushless DC traction motor 8 through the elastic coupling 6, and the signal transmission line of the disc-type brushless DC traction motor 8 is connected to the flameproof DC frequency conversion speed controller 9, and the flameproof type The DC variable frequency speed regulator 9 includes a controller, a control device and a box body, and the flameproof DC variable frequency speed regulator 9 is installed in the driver's cab 2 .

A mechanical brake device 10 is installed at both ends of the traveling device close to the cab 2 for auxiliary braking; a sanding device 11 is installed on the rail surface of the wheel 4 of the traveling device, and when the friction between the track and the wheel decreases, sanding The device 11 increases the friction between the wheel 4 and the track by sanding the track; the front outer surface of the cab 2 is provided with a lighting lamp 13, and a horn 14 is fixedly installed on one side of the lighting lamp 13, so that the driver can observe the locomotive in a dark environment The status of the track ahead, and at the same time warn the people ahead to avoid.

Compared with the traditional AC variable frequency electric locomotive, the present invention has the advantages of large output torque, smooth speed regulation, short braking distance, rapid response of electric braking, no harmonic interference, high safety, low failure rate, power saving rate, etc. features.

The power supply of the present invention is supplied to the explosion-proof DC variable frequency governor 9 in the driver's cab 2 through the battery 3, and the driver passes the control signal given by the flameproof DC variable frequency governor 9 and the installed disc-type brushless DC traction motor 8 The position sensor detects the position of the motor rotor, and triggers the electronic commutation circuit control switch to turn on and off according to the position signal of the rotor, so as to control the power on and off of the stator winding and realize electronic commutation, that is, to realize non-contact commutation, so that the disc-type brushless DC traction motor 8 generates power, and the power generated by the disc-type brushless DC traction motor 8 makes the wheel shaft 7 rotate through the torque conversion and speed change of the reduction box 5, and the wheel shaft 7 drives the wheel 4 to rotate. The DC brushless traction motor 8 generates power in the form of non-contact commutation to realize the stepless speed regulation of the locomotive, thus avoiding the problems of starting impact and unsmooth starting when the locomotive starts at zero speed. When the locomotive needs to be braked when running, turn the speed control handle of the flameproof DC variable frequency governor 9 to the braking position to generate electromagnetic braking force. The disc-type DC brushless traction motor 8 rotates to realize the electric braking of the locomotive. This electric braking method responds quickly and the braking force of the wheels is basically equal, which eliminates the vibration or derailment of the locomotive during braking. Therefore, the braking performance is excellent, and the whole vehicle The safety is good, and the reverse electric energy generated during braking can charge the battery and save electricity.

The disc-type DC brushless traction motor 8 includes a rotor, a stator and a frame, the rotor and the stator are arranged in the frame, the outer layer of the frame is provided with a motor cover, the center of the frame is provided with an inner splined hollow shaft, and the shaft of the motor Smaller size and lighter weight can reduce the structure of the entire vehicle frame 1 and save costs.

The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the inventive concept of the present invention, some modifications and improvements can also be made, and these all belong to the present invention. protection scope of the invention.

Claims (3)

1. a storage battery disc type electric machine car, comprise vehicle frame (1), described vehicle frame comprises by both sides steel plate, intermediate hsg, two ends steel plate and bottom steel plate are welded to form tower structure, one end of described vehicle frame (1) arranges operator's compartment (2), the top of vehicle frame (1) arranges storage battery (3), described storage battery (3) is fixed on the top of vehicle frame (1) by support, running gear is installed in the bottom of vehicle frame (1), described running gear comprises the two pairs of wheels (4) that are arranged on vehicle frame both sides, wheel shaft (7), drop-gear box (5), elastic coupling (6), two pairs of bear boxs (15) of disc type brush DC traction electric machine (8) and vehicle frame (1) both sides, the guide plate support floating connection of bear box (15) and vehicle frame (1), the center of every pair of wheel (4) is connected with wheel shaft (7) respectively, each wheel shaft (7) is connected with the mouth of drop-gear box (5), roll and be connected with bear box (15) in the two ends of each wheel shaft (7), the input end of drop-gear box (5) is connected with disc type brush DC traction electric machine (8) by elastic coupling (6), the signal transmssion line of disc type brush DC traction electric machine (8) is connected to flame-proof type DC frequency-changing governor (9), described flame-proof type DC frequency-changing governor (9) comprises controller, actuation means and casing, flame-proof type DC frequency-changing governor (9) is arranged in described operator's compartment (2).

2. storage battery disc type electric machine car according to claim 1, is characterized in that: described at the two ends installation mechanical brake device (10) near running gear, sanding device (11) is installed at the rail level place of wheel (4).

3. storage battery disc type electric machine car according to claim 1, is characterized in that: the front upper part of described operator's compartment (2) arranges illuminating lamp (13), side fixed installation loudspeaker (14) of described illuminating lamp (13).

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