CN202966337U - Electric locomotive braking device - Google Patents
Electric locomotive braking device Download PDFInfo
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- CN202966337U CN202966337U CN 201220734166 CN201220734166U CN202966337U CN 202966337 U CN202966337 U CN 202966337U CN 201220734166 CN201220734166 CN 201220734166 CN 201220734166 U CN201220734166 U CN 201220734166U CN 202966337 U CN202966337 U CN 202966337U
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- braking
- module
- brake
- electric locomotive
- electric
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Abstract
The utility model discloses an electric locomotive braking device which comprises a flame-proof type direct current power, a flame-proof type frequency changer and an alternating traction electric locomotive. The electric locomotive braking device is characterized by further comprising a feedback electrical regenerative braking module, an air braking module and a manual braking module. The feedback electrical regenerative braking module provides ordinary braking. The air braking module provides assistant or emergent braking. The electric locomotive braking device is large in starting torque, good in electrical braking, fast in response, good in reliability, high in safe coefficient, energy-saving and the like. Besides, due to the fact that the air braking module is only used for parking, the feedback electrical regenerative braking module is used to meet braking requirement completely during ordinary operation without using of the air braking module, abrasion of brake shoes is rare and no maintenance is needed.
Description
Technical field
The utility model belongs to the electric locomotive technical field, is specifically related to a kind of electric locomotive brake device.
Background technology
Electric locomotive is the main transportation device of coal production and constructing tunnel.Its drive system is DC traction motor, by secondary or primary gear speed reducing device with transmission of torque to wheel.DC traction motor is controlled electrical motor with the form work of series excitation by rheostatic speed regulation cam controller or DC chopped-wave controller, thereby realizes the controls such as startup, operation of electric locomotive, and what braking was adopted is the mode of mechanical braking.
The rheostatic speed regulation cam is controlled mode of speed control frenulum resistance starting, operation, and consumption of current is large; Step speed regulation, gear impacts large; Contact abrasion is large, easily ablation, and fault rate is high, and the unfailing performance safety performance is low, jeopardizes safety in production; Maintenance is frequent, and service expenditure is high, and the time of delaying work that stops production is long.Given this, national mining product safety mark center in June, 2010 issue bulletin, the above electric explosion-tested locomotive of regulation 8t must not use the rheostatic speed regulation mode.In January, 2012, issue again [2012] No. 2 files, nullify the Coal mine product safety sign of 8t and following rheostatic speed regulation anti-explosion special storage battery electric locomotive, manufacturing enterprise must stop production and selling immediately.
DC chopped-wave is controlled the rheostatic speed regulation cam that mode of speed control compares and is controlled mode of speed control, technical making great progress, start relatively steady, infinite speed variation, tractive force is improved, failure rate is low, but the driving motor employing be still DC traction motor.Although DC traction motor has good tractive characteristic, its commutator, armature structure are complicated, manufacturing process is complicated, cost is high; Need often to change brush, fault rate is high, and maintenance cost is high, service life is short; Its volume is large, is unfavorable for complete machine deployment.
These two kinds of mode of speed control all adopt mechanical braking, namely by hand wheel rotating leading screw or gas brake mode drivening rod mechanism, produce friction force and stop locomotive operation by increasing contact between slipper and wheel.Though DC chopped-wave is controlled mode of speed control, electric resistance braking is arranged, braking force is very weak, uses highly energy-consuming resistance, and can not realize energy consumption regeneration.This mechanical braking mode safety factor is low, delay of response, and operation is clumsy, and braking effect is poor; Mechanical wear is large, and brake shoe is very short service life, changes frequent; In growing apart from the descending operational process, in order to satisfy the requirement of stopping distance, often need come increasing friction force toward stucco on track, use very inconvenient; Easily produce high temperature, be not suitable for using in explosive atmosphere; Can make wheel lockup cause derailment accident when emergency braking.
Summary of the invention
The purpose of this utility model is to provide that a kind of moment of starting is large, electric braking is effective, reflection is rapid, good reliability, safety factor are high, the electric locomotive brake device of energy savings.
The technical scheme that realizes the utility model purpose is: a kind of electric locomotive brake device, comprise flame-proof type direct supply, explosion-proof frequency conversion device and AC traction motor, its constructional feature is: also comprise simultaneously the electric regenerative brake module of feedback, air brake module and hand braking module; The electric regenerative brake module of described feedback is conventional brake, and described air brake module is as auxiliary or emergency braking.
In such scheme, described air brake module is the Block brake module.
Good braking performance and good of the present utility model is provided with the electric regenerative brake of feedback, air brake and hand braking three kinds of brake modules in conjunction with the characteristics of alternating current drive.The electric regenerative brake of feedback is conventional brake, and air brake is used during only as auxiliary or emergency braking as the Block brake of power.The principle of the electric regenerative brake of feedback is: when electric locomotive need to slow down, use the feedback regenerative brake, stop power supply, adjustable frequency motor namely enters generating state under the effect of inertia, generation realizes electric braking in contrast to the torque of electrical motor rotation direction, and braking effect is splendid; After the three plase alternating current process electric system rectification of sending simultaneously, supply unit is charged, can extend the supply unit discharge time of accumulator.Mechanical braking only is used for Parking, adopts the electric regenerative brake of feedback to satisfy brake request fully when normal operation, and mechanical braking is use hardly, and brake shoe is several without wearing and tearing, avoids safeguarding.This brake mode has fundamentally solved the problem of the speed governing of existing rheostatic speed regulation cam and direct current chopping regulating speed existence aspect driving and braking, improves deceleration and stopping performance and safety performance, also plays simultaneously the effect of energy savings, reduction power consumption.
The utlity model has that moment of starting is large, electric braking is effective, reflection is rapid, good reliability, safety factor are high, the advantage of energy savings.In addition, because the air brake module only is used for Parking, adopt the electric regenerative brake module of feedback can satisfy brake request fully when normal operation, the air brake module is use hardly, and brake shoe is several without wearing and tearing, avoids safeguarding.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the another kind of structural representation of electric locomotive brake device shown in Figure 1.
The specific embodiment
(embodiment 1)
Fig. 1 and Fig. 2 have shown a kind of specific embodiment of the present utility model, and wherein Fig. 1 is a kind of structural representation of the present utility model; Fig. 2 is the another kind of structural representation of electric locomotive brake device shown in Figure 1.
The present embodiment is a kind of electric locomotive brake device, comprises flame-proof type direct supply 1, explosion-proof frequency conversion device 2 and AC traction motor 3, and its constructional feature is: also comprise simultaneously the electric regenerative brake module of feedback, air brake module and hand braking module; The electric regenerative brake module of described feedback is conventional brake, and described air brake module is as auxiliary or emergency braking.
Described air brake module is the Block brake module.
The good braking performance and good of the present embodiment is provided with the electric regenerative brake of feedback, air brake and hand braking three kinds of brake modules in conjunction with the characteristics of alternating current drive.The electric regenerative brake of feedback is conventional brake, and air brake is used during only as auxiliary or emergency braking as the Block brake of power.The principle of the electric regenerative brake of feedback is: when electric locomotive need to slow down, use the feedback regenerative brake, stop power supply, adjustable frequency motor namely enters generating state under the effect of inertia, generation realizes electric braking in contrast to the torque of electrical motor rotation direction, and braking effect is splendid; After the three plase alternating current process electric system rectification of sending simultaneously, supply unit is charged, can extend the supply unit discharge time of accumulator.Mechanical braking only is used for Parking, adopts the electric regenerative brake of feedback to satisfy brake request fully when normal operation, and mechanical braking is use hardly, and brake shoe is several without wearing and tearing, avoids safeguarding.This brake mode has fundamentally solved the problem of the speed governing of existing rheostatic speed regulation cam and direct current chopping regulating speed existence aspect driving and braking, improves deceleration and stopping performance and safety performance, also plays simultaneously the effect of energy savings, reduction power consumption.
To sum up, the present embodiment has advantages of that moment of starting is large, electric braking is effective, reflection is rapid, good reliability, safety factor are high, energy savings.In addition, because the air brake module only is used for Parking, adopt the electric regenerative brake module of feedback can satisfy brake request fully when normal operation, the air brake module is use hardly, and brake shoe is several without wearing and tearing, avoids safeguarding.
Obviously, above-described embodiment of the present utility model is only for the utility model example clearly is described, and is not to be restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection domain of the present utility model.
Claims (2)
1. an electric locomotive brake device, comprise flame-proof type direct supply, explosion-proof frequency conversion device and AC traction motor, it is characterized in that: also comprise simultaneously the electric regenerative brake module of feedback, air brake module and hand braking module; The electric regenerative brake module of described feedback is conventional brake, and described air brake module is as auxiliary or emergency braking.
2. electric locomotive brake device according to claim 1, it is characterized in that: described air brake module is the Block brake module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734166 CN202966337U (en) | 2012-12-28 | 2012-12-28 | Electric locomotive braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734166 CN202966337U (en) | 2012-12-28 | 2012-12-28 | Electric locomotive braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202966337U true CN202966337U (en) | 2013-06-05 |
Family
ID=48507451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220734166 Expired - Fee Related CN202966337U (en) | 2012-12-28 | 2012-12-28 | Electric locomotive braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202966337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212111A (en) * | 2021-12-22 | 2022-03-22 | 湘潭市电机车厂有限公司 | Artificial intelligence accumulator variable frequency electric locomotive |
-
2012
- 2012-12-28 CN CN 201220734166 patent/CN202966337U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212111A (en) * | 2021-12-22 | 2022-03-22 | 湘潭市电机车厂有限公司 | Artificial intelligence accumulator variable frequency electric locomotive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |