CJY7/6, 7, 9/GB

DC stringing type industrial and mining electric locomotive

 

1 Name, model and specification

1.1Name: DC electric locomotive

product model:CJY7/6,7,9GB

model meaning:

C J Y □ / □

Gauge Code (6,7,9)

adhesion quality (t)

one end of the cab

stringing type

coal mine locomotive

1.2Model and specification (see Table for model and specification of electric locomotive1)

table1

Product Model	GaugeK	longL	wideB	highH
CJY7/6	600	4470	1055	2200
CJY7/7	762	4470	1217	2200
CJY7/9	900	4470	1355	2200

 

1.3The dimensions of the product are shown in Fig.1.

2 product use and scope of application

2.1product use

This electric locomotive is suitable for metal mines and underground coal mines without explosion hazards such as gas to pull tramcars, transport minerals, equipment or for tuning.

2.2products

2.2.1The altitude does not exceed1200mm;

2.2.2is+40 ℃, minimum temperature -25 ℃;

2.2.3The relative humidity of the air is the wettest monthly average maximum relative humidity is not more90%, while the monthly mean minimum temperature for the month is not higher25 ℃.

If the above conditions of use are exceeded, the user shall negotiate with the company and sign a technical agreement separately.

 

3. products

3.1this product implementation standardMT/T1064-2008Technical Conditions for Mine Narrow-gauge Stringing Electric Locomotive;

3.2technical data (see table2)

 

table2

Serial Number	Namesaid	Listposition	Gaugegrid	equipmentNote
1	nominal adhesion mass	t	7
2	Rated voltage	V	250	DC voltage
3	Rated traction	kN	13.05
4	Rated speed	km/h	11
5	Rated power (traction motor)	kW	20.6 × 2	2 motors
6	maximum traction	kN	17.2
7	maximum speed	km/h	25
8	hour system current	A	190
9	Wheelbase	mm	1100
10	Gauge	mm	600, 762, 900
11	through minimum curve radius	m	7
12	Operating height of power receiver	mm	1800~2200
13	Motor model		ZQ-21
14	Wheel rolling circle diameter	mm	680
15	Discharger height	mm	50
16	gear ratio	I	6.923	Primary Orthodonto
17	speed regulation mode		resistance speed regulation
18	braking mode		resistance, mechanical

3.3Overview

3.3.1This overhead electric locomotive is used for transporting mineral equipment and personnel by hauling trains in the main roadways in the mine. This type of locomotive is not explosion-proof, so it is only used for general metal mines or coal mines without explosion hazard.

3.3.2The main structure of the locomotive (see figure2) divided into: starting resistance1, frame2, spring suspension3, wheelset4, motor5, brake system6, controller7, automatic switch8, power receiver9and other parts. The frame is welded by high-quality steel plates, and the two ends are connected by elastic buffers. The wheel bearings are tapered roller bearings. The two wheels are equipped with separate motors, which are directly driven by gears.

3.3.3controller is installed in the cab to operate the locomotive, and braking can be performed by the controller or by turning the hand wheel of the braking system.

3.4.4brake system is also installed in the cab, which is convenient for the driver to operate.

3.4Electrical Wiring Description

3.4.1power line includes:

3.4.1.1Two traction motors:ZQ-21

3.4.1.2Controller:QKT45-100/250

3.4.1.3automatic switch:QDS1-2-240/250S

3.4.1.4starting resistance:DZ-50/250

3.4.1.5receiver:QNG3-5

3.4.1.6Connection lead:1000V-XXRubber Wark LineDCBX

3.4.2lighting circuit are:

3.4.2.1DC Transformer:DXK1-6/24/250250/24V

3.4.2.2Lights:JN150,24V,35W

3.4.2.3Horn:DL60A,12V,2.5A

3.4.3After the power line is connected with the electrical equipment, it can convert all the specified working systems (from one working system to another), and can protect the short circuit and overload load of the electrical equipment.

3.4.4locomotive driving:

3.4.4.1starting and long-term driving

3.4.4.2Locomotive running without power (taxiing without power)

3.4.4.3Single motor operation

3.4.4.4electric brake

3.4.5"forward" and "backward" operation with cam controllerQKT45-100/250reversing handle to operate the power circuit.

current is led to the controller through the power receiver and automatic switch. The controller has a reversing handle, which can change the running direction or stop any motor. The main handle on the controller has the following positions (see figure3)

3.4.5.1Zero Position

the contact of the controller when the main handle is in the zero position1,6closed, the motor has no voltage applied.

3.4.5.2Location1

handle in position1. Controller contactsSK,1,6andT3is closed, the two motors are connected in series and all starting resistors are connected. The current is subjected to electrical appliances, automatic switches and contacts.SKand1, starting resistanceR1~R4section, contactT3, first motor, contact6, second motor, ground.

3.4.5.3Location2

handle in position2. Controller contactsSK,1,3,6andT3closed, starting resistanceR2~R4section is shorted and the two motors are in series.

3.4.5.4Location3

in position3, the contact of the controllerSK,1,2,3,6andT3closed, starting resistanceR1~R2andR2~R3are shorted, leaving only the resistorR3~R4section, the two motors are still connected in series.

3.4.5.5Location4

in position4, the contact of the controllerSK,2,4,6andT3closed, starting resistanceR1~R2segment is shorted,R2~R3andR3~R4sections are connected in parallel, and the two motors are connected in series.

3.4.5.6Location5

In the long-term driving position, controller contactSK,2,3,4,6andT3is closed, all starting resistors are cut off, and the motor is driven in series with full voltage.

3.4.5.7LocationX1

controller contactSK,2,3,6andT3closed, starting resistanceR1~R2andR2~R3section open,R3~R4is connected and the two motors are connected in series.

3.4.5.8LocationX2

controller contactSK,2,6,7andT3closed, starting resistanceR3~R4SEG ON, MOTOR"2"short circuit.

3.4.5.9LocationX3

controller contactSK,2,5,7andT3closed, starting resistanceR3~R4section is connected and the two motors are connected in parallel.

3.4.5.10Location6

controller contactSK,2,4,5,7andT3closed, starting resistanceR1~R2section open,R2~R3andR3~R4sections are connected in parallel, and the two motors are connected in parallel.

3.4.5.11Location7

controller contactSK,1,2,4,5,7andT3closed, starting resistanceR1~R2,R2~R3,R3~R4are connected in parallel, and the two motors are connected in parallel.

3.4.5.12Location8

is the long driving position, controller contactSK,1,2,3,4,5,7andT3is closed, the starting resistors are all short-circuited, and the two motors are connected in parallel.

3.4.5.13position I (braking)

controller contact1,5,7,T1andT2is closed, the power circuit is cut off from the power line, the starting resistors are all connected in series as the motor load, and the motor works under the generator working system.

3.4.5.14position II (brake)

controller contact1,3,5,7,T1andT2closed, starting resistanceR2~R3is shorted,R1~R2,R3~R4,R4~R5section is connected in series as a motor load, and the two motors are connected to each other to work under the generator working system.

3.4.5.15position III (brake)

controller contact1,2,3,,5,7,T1andT2closed, starting resistanceR1~R2andR2~R3segment is shorted,R3~R4andR4~R5section is connected in series as the motor load, and the two motors are connected to each other to work under the generator working system.

3.4.5.16position IV (braking)

controller contact2,4,5,7,T1andT2closed, starting resistanceR1~R2section is open, and the rest of the resistors are connected as loads,R2~R3andR3~R4in parallel,R4~R5are connected in series, and the two motors are connected to each other to work under the generator working system.

3.4.5.17position V (braking)

controller contact1,2,4,5,7,T1andT2closed, starting resistanceR4~R5section series access circuitR1~R2,R2~R3andR3~R4are connected in parallel, the access circuit is used as a load, and the two motors are connected to each other to work under the generator working system.

3.4.5.18position VI (brake)

controller contact1,2,3,4,5,7,T1andT2is closed, the two motors are connected to each other to operate under the generator working system, and the resistance is connected.R4~R5segment as load.

3.4.6The starting and braking characteristic curve of locomotive is shown in Fig.4.

4 Locomotive Operation and Maintenance

: the electric locomotive must pay attention to maintenance, with the correct operation technology to operate, in order to make the locomotive running well.

4.1Inspection when the driver accepts the electric locomotive in the garage: the driver should check the appearance of the car before receiving the electric locomotive in the garage and starting to operate the electric locomotive.

4.1.1check whether all movable covers are closed, and whether all screws of switches, motors and shockproof headlights are tightened.

4.1.2checking the tightness of the protective wire jacket.

4.1.3Check whether the mechanical parts of the electric locomotive are normal, whether there is enough lubricant at all lubrication places and the perfection of the braking system. The thickness of the brake shoe after excessive wear should not be less10mm.

4.1.4Adjust the brake handwheel so that the gap between the brake shoe and the wheel rim is2~3mmrange, the brake shoe should be in the normal concentric position of the wheel, and then the driver will check the locomotive in the following way.

4.1.5check whether the braking and release of the brake is normal.

4.1.6test whether the sand box works well when sanding in two directions.

4.1.7check whether the lowering and lifting mechanism of the receiver is flexible.

4.1.8check the front and rear lights.

4.1.9to place the brake reversing handle in "forward", "backward" and other positions in turn, and then put the main handle of the controller in the first position and immediately return to the zero position. With a slight push, you can feel whether the motor has current. This check can prove whether the line device diagram of both directions is correctly complied.

4.1.10closes the first position of the controller, check whether the lamp continues to be bright.

4.2Inspection during shift change

4.2.1shift handover inspection is the same as the inspection when the electric locomotive is out of the garage. In addition, the heating of the bearing box should be checked. When the temperature is higher80℃, the locomotive must be returned to the garage, and the shift driver should inform the shift driver of the abnormal situation and damage that occurred during the work.

4.3Precautions when driving: During the working hours of the electric locomotive on the railway line, the driver must pay attention:

4.3.1check whether the bearing shell connecting the bearing box and the traction motor shaft and the locomotive shaft generates heat. The smell can be detected before the bearing starts to burn.

4.3.2check the integrity of the cable end joints.

4.3.3pay special attention to any unusual sounds or smells and report them to the garage leader.

4.4Inspection before warehousing: Inspection before warehousing is the same as handover inspection during shift change, and all defects shall be recorded in the repair book.

4.5Operation

4.5.1controller is turned from one position to another, it should not stagnate between the two positions, because this will cause arcing and damage the contacts.

4.5.2wheel slips, put the controller handle to the zero position, and then gradually turn the handle to the normal operation position.

4.5.3It is absolutely forbidden to brake the wheel to prevent slippage or the main handle is not put to the zero position, because it will greatly overload the motor.

4.5.4must avoid driving in the resistor position, because this will burn the resistor and consume too much power, handle position"5"and"8"is the normal operating position.

4.6Starting of electric locomotive

4.6.1reversing handle should be placed in the "forward" or "backward" position.

4.6.2set the main handle to"1"position.

4.6.3turns the main handle sequentially from one position to another, I .e. the motor vehicle speed will gradually increase.

4.6.4is in the first position and the electric locomotive does not move, it is allowed to turn the main handle to the next position. At this time, if the electric locomotive has not been started, the reason must be found out, because turning the handle to the next position may damage the electrical equipment.

4.6.5Location"5"and"8"is the operating position, allowing long-term driving in these two positions.

4.6.6When the controller is powered off in any position, the handle must be quickly turned back"0"position.

4.7Sand

4.7.1must be sprinkled with sand at the beginning of start-up and during acceleration.

4.7.2In the case of emergency braking, sand must be sprinkled on the track to increase the braking effect.

4.8Stopping of electric locomotive

4.8.1In order to stop the electric locomotive, the current should be cut off first, so the handle must be moved to the zero position and then moved to the braking position.

4.8.2handle must be shifted step by step in the direction of the brake arrow.

4.8.3braking, turn the handle to the zero position.

4.8.4turning the handwheel of the braking system.

4.8.5is mechanically braked, if it is found that the wheel is sliding on the track, the brake must be quickly relieved and then re-braked.

4.8.6shall not stop the locomotive by reversing the motor.

4.8.7If the mechanical brake cannot stop quickly, check the adjustment parts in the brake system and the wear of the brake shoe.

4.8.8reversing handles I and II operate two motors at the same time. Position I only operates the first motor behind the cab, and position II only operates the second motor behind the cab.

4.8.9can only produce electrical braking when the two motors are used at the same time (that is, the reversing handle is in the I and II positions).

4.8.10is operated by a single motor, the traction locomotive must be halved.

4.9Electric locomotive into the mine

4.9.1Before entering the mine, the electric locomotive must:

4.9.1.1Remove the wires connecting the power receiver to the front and rear lights and the electrical appliances installed on the inner wall of the cab, but do not remove the post at the wire end.

4.9.1.2Remove the upper cover plate and cab roof.

4.9.1.3fastens the removed wire to the frame.

4.9.1.4Remove the front and rear lamps, power receiver and its mount.

4.9.1.5the control equipment in the cab, the controller is firmly supported with wood.

4.9.2After the electric locomotive is driven into the mine, restore all the removed parts, and check the correctness of the connection of wires and electrical equipment according to the line installation drawing.

Note: When the locomotive is started under heavy load, the handle should not be moved quickly to avoid current impact.

5 Repair and maintenance of electric locomotive

5.1roller bearing and bearing housing adjustment.

5.1.1must be marked when removing the cover and gasket so that errors do not occur when restoring the device.

5.1.2If the gasket of the axle box cover is not marked when it is opened, the sequence position is wrong. In order to correctly perform the recovery device, the following steps must be followed.

5.1.2.1install the cover and all screws without a gasket.

5.1.2.2use a feeler gauge to measure the gap between the cover and the bearing housing.

5.1.2.3will measure the gap, plus0.2~0.3mm, select the number of shims based on this number.

5.1.2.4Remove the cover again and put on the selected number of shims.

5.1.2.5fit the cover, spring washer and tighten the screws.

5.1.3If the bearing box heats up during working hours, first pay attention to the gap between the wheel housing and the bearing, which should not be less2mm, check the degree of soiling of the lubricating oil again, and adjust the roller bearing according to the above steps.

5.1.4After that, if the bearing box continues to heat, it must be disassembled for detailed inspection. Note that the inner and outer rings of the bearing are not allowed to be too loose and irregular, and carefully check the surfaces of the inner and outer rings and rollers. If wear and fatigue (small and local pitting) are found, new bearings must be replaced.

5.1.5New roller bearings should be cleaned of oil wax before assembly, and proceed as follows.

5.1.5.1clean all impurities in kerosene or gasoline.

5.1.5.2with a cloth and then install it on the shaft and adjust the bearing housing.

5.1.5.2.1axial movement shall be0.15~0.2mmrange, and easy to turn.

5.1.5.2.2fixing the inner ring of the bearing should be tightened firmly so that there is no gap between the bearing and the parts assembled on the journal.

5.1.6Open all bearings at least once every three months, check and replace the lubricating oil, and only remove the screws when checking and changing the oil4.

5.1.7The lubrication of roller bearings should not contain acid or alkali, because acid and alkali can erode the bearing surface and reduce its life, it is recommended to use calcium sodium base greaseZGN-2lubricating material is used as a lubricant in the bearing housing, and the bearing must be dust-proof or moisture-proof.

5.2Wheelset

5.2.1Check the tightness of the wheel hoop to the wheel core and the integrity of the wheel hoop every day.

5.2.2Regularly check the wear of the outer wheel rim. If the depth of the defect formed on the wheel rim surface is greater3mm, wear length greater5mm, the wheel set must be removed and the wheel set must be polished on the lathe, and the wheel rim is worn25mmthick, it must be replaced with a new wheel. When turning the wheel (without disassembling the bearing box), the diameter difference between the two rolling circles of each wheel set must not be greater1mm.

5.2.3Steps for removing wheelset

5.2.3.1Remove the upper cover and traction motor

5.2.3.2Remove the bearing housing lower baffle

5.2.3.3Raise the frame and remove the wheelset

5.2.3.4roll out wheel pair

5.3brake system

5.3.1Before each shift, check the damage and wear of the parts of the brake system. The damaged parts must be replaced with new parts. The reliability of the brake determines safe driving.

5.3.2is in the relief state, the brake system shall not be inclined in the vertical plane, and the brake shoe shall be placed in the concentric position with the wheel rim.

5.3.3Adjust the screw at the lower end of the connecting rod according to the wear of the brake shoe, so that the gap between the brake shoe and the wheel rim is maintained2~3mmrange, so as to brake quickly.

5.3.4Brake screws, bearings and pin connections shall be oiled at least once every five days.

5.4Spring holder

5.4.1the spring plate must be lubricated regularly, it must be cleaned of dust and soil, and then coated with a little lubricating oil to make the oil flow into the plate along the side of the spring plate.

5.4.2spring and the balance arm shall be lubricated during shift change.3day.

5.4.3springs is broken, it must be replaced with a new one, otherwise the locomotive is not allowed to leave the warehouse.

5.5gear transmission device

5.5.1check the gear drive for wear at any time.

5.5.2gear should be replaced immediately if it is damaged.

5.5.3Lubricant for gear transmission, after every three months, replenish the gear cover and coat the tooth surface with a layer of molybdenum disulfide grease (molybdenum disulfide plus50machine oil, preparation ratio2:1Use after thinning). If the grease is dry, clean it immediately and change it into new grease.

5.5.4At the same time, the shell should be cleaned, and the joint of the two halves of the shell should be tight, and impurities such as soil should not be allowed to enter the inside.

5.5.5In any case, the driving of the motor vehicle without the transmission gear of the housing device is prohibited.

5.6traction motor

5.6.1motor and axle is recommended.50engine oil (HJ-50) or axle oil (GB488-74).

5.6.2The surface of the bearing is very smooth and smooth. If there is any damage, replace the new bearing in time. Fill it with a clean wool rope soaked in the upper lubricant. The filler should contact the journal. If the filler is dirty, replace it in time.

5.6.3Ball or roller bearings must be cleaned with gasoline every six months, replaced with new lubricant, and used calcium sodium base grease (ZGN-2), but care must be taken to make the bearing box completely tight, and the lubricant cannot invade the motor from the bearing box.

5.6.4The outside of the motor is often purged with bellows or compressed air. Disassemble it every six months for detailed inspection. When disassembling and taking out the rotor, you should be highly careful not to damage the windings and commutator, then carefully wipe it dry, and purge it with bellows or compressed air. The magnetic pole windings must also be purged, and the oil stains falling on the magnetic poles must be washed away with gasoline. Check whether the surface of the commutator is smooth and worn. If the surface is smooth, a small amount of Vaseline can be coated. If there is mica protruding between the commutator segments, it must be worn away with fine sandpaper. If the commutator is not evenly worn, it must be polished on the lathe. If the wear is serious, it must be replaced with a new one. The oil on the commutator must be scrubbed with cloth with gasoline, but the gasoline. Every two days to check the brush wear and contact with the commutator is good or bad. Every2~3day, check the wear degree of the brush and the contact with the commutator. The gap between the commutator and the carbon brush should be maintained.3~10mm, the new brush in the assembly should be well before the commutator grinding, brush friction surface should not have cracks.

5.7Common Fault Analysis and Troubleshooting

fault phenomenon	reason analysis	exclusion method	Remarks
Electric locomotive without voltage	Poor contact between power receiver and power supply; The wires of power receiver, automatic switch and controller are loose	Check the wire from the receiver to the controller via the automatic switch.
lamp does not light up	Light switch failure; The direct transformer is damaged.	Replace the switch; Replace the direct transformer
can speed but not enough	Mechanical failure of locomotive; Locomotive is seriously overloaded	Check the brakes, etc. load reduction
speed control handle just pull-in automatic switch trip	Motor coil short circuit; high current	Check the internal wiring of the motor

 

5.8locomotive

5.8.1Lubrication of electric locomotive (see figure5and tables3, the mark in the figure is the lubrication point number).

table3

1	2	3	4	5	6				7	8
Components Name	lubrication point number. lubrication points	Lubricant Name	lubrication mode	Rated consumption	shift 1g				lubrication system	oilBox
					Ⅱ calcium-sodium base grease	machine machinery oil	I calcium-sodium base grease	graphite grease		Capacity kg	Use (Class)
traction motorZQ-21	5/2 3/4	plain bearing motor shaft ball or roller bearings	oil rope packing	φ90 e=290 φ60 e=37	- 14	40 -	-	-	a week to inject0.5kg 1 time in 6 months	1.5 × 2 0.192 × 4	260 360
bearing box	4/4	roller bearing	packing	φ90 e=42	1.5	-	-	-	1 time in 3 months	0.288 × 8	180

Continuation3

1	2	3	4	5	6				7	8
Components Name	lubrication point number. lubrication points	Lubricant Name	lubrication mode	Rated consumption	shift 1g				lubrication system	oilBox
					Ⅱ calcium-sodium base grease	machine machinery oil	I calcium-sodium base grease	graphite grease		Capacity kg	Use (Class)
Braking system	6/14 9/1	connecting pin brake screw	with hands with hands	φ25 e=70 ladder32 × 60e = 220	-	-	0.4 2.0	-	1 shift 1 time 1 shift 1 time	-	1 1
Spring holder	7/4 8/8	the hinge of the spring plate and the equalizing block	with hands	7 tablets 76 × 470 φ25 e=95	-	-	- 0.25	0.5 -	1 shift 1 time	-	60 1
gear transmission	2/2	gear Z=90 Z=13	oil jug Injection	Motor power20.6kW Revolutions= 600rpm	molybdenum disulfideNo. 50 mechanical oil with a mixing ratio of 2:1 is injected into the gear box and coated with a layer on the tooth surface.				injection1kg	1 × 2	3 months

Note:1, table3is calculated as two shifts per day.

2. When calculating the consumption of lubricant, it is necessary to estimate the amount of oil injected and replaced in the original oil box. Detailed records are required for the operation, maintenance, repair and lubrication of the electric locomotive. The specific format is customized by the user department.

6 Spare parts, tools and documents of electric locomotive

for each locomotive.

6.1spare parts

6.1.1Electric locomotive body spare parts

equipment Piece table

type	Namesaid	quantity
00C8816	driving gear	1Piece
00D15857	special nut	1Piece
00D15951	spring	2Piece
8.281.552	spring	1Piece
8.281.553	spring	1Piece

6.1.2The spare parts of motor and electrical equipment are shown in the instruction manual of motor and electrical equipment respectively.

6.2Tools

Oiler (capacity:1kg)1put

6.3file

6.3.1Product Certificate (Certificate of Conformity):1Zhang

6.3.2locomotive instructions for use:1copies

6.3.3 ZQ-21traction motor instructions:1copies

7 User Attention

7.1 electric locomotives must be regularly overhauled and checked, and hidden dangers should be dealt with in time.

The braking distance of 7.2 trains shall be measured at least once a year, and the braking distance shall meet the requirements of Coal Mine Safety Regulations.

The use conditions of 7.3 electric locomotives must comply with the provisions of the "Coal Mine Safety Regulations", and portable methane detection and alarm devices must be installed when used in the main transportation roadway of high-gas mine air intake.

8 Ordering Instructions

8.1the problems and defects found by users in use, please submit them to Xiangtan Shuangli Electric Locomotive System in time.Manufacturing Limited, and please specify

Product delivery date and product serial number;

8.2When ordering, the model, name, tonnage, gauge and whether special lifting equipment should be ordered separately should be indicated (it is recommended that each mine be equipped with a special lifting equipment).

9 Quality Assurance

products from the date of arrival10months or during this period6months, if a fault is found, the company is responsible for repairing the quality problem of the manufacturer after analysis.

 

 

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