CN100410119C - Automatic steering device for headlight of railroad locomotive - Google Patents
Automatic steering device for headlight of railroad locomotive Download PDFInfo
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- CN100410119C CN100410119C CNB2005100210886A CN200510021088A CN100410119C CN 100410119 C CN100410119 C CN 100410119C CN B2005100210886 A CNB2005100210886 A CN B2005100210886A CN 200510021088 A CN200510021088 A CN 200510021088A CN 100410119 C CN100410119 C CN 100410119C
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- head lamp
- steering device
- headlight
- automatic steering
- gear
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Abstract
The present invention discloses an automatic steering device for a head lamp of a railroad locomotive, which comprises an electric traversing mechanism, a detector for detecting a curve radius of a rail track, a head lamp position sensor and an automatic controller, wherein the electric traversing mechanism is used for driving a head lamp body to deflect, and the automatic controller is used for controlling the deflection of the head lamp according to detection signals. The automatic steering device is characterized in that a displacement sensor is adopted as the detector for detecting a curve radius of a rail track to be used for detecting the displacement value of a relative angle between a locomotive body and a steering frame; because the displacement value of the relative angle and the curve radius of a railroad curve are uniquely corresponding and synchronous, the focusing light projecting point of the head lamp is always accurately irradiated on a railroad of a secure observing distance.
Description
Technical field
The present invention relates to the head lamp of railway locomotive, relate in particular to its autosteerer, be used for train when railroad curve moves, make head lamp, full the focusing light projector point of headlight beam drops on the An lookout distance on the railway all the time with the automatic deflection of the variation of railway track radius of curve.
Background technology
In the past, the head lamp of railway locomotive is to be fixedly mounted on the locomotive head, can not left and right sides deflection, when locomotive operation arrives railroad curve, headlight beam are gone out along the direct projection of bend tangential direction, depart from railway track, and it focuses on the light projector point can not drop on both set a distance (lighting safety distances of Railway Design regulation and stipulation of the place ahead one, be driver De lookout distance) railway on, the illuminated distance of railway is very short.For example, on the bend of 300 meters of circuit radius of curve, the circuit in 48 meters in the place ahead of can only throwing light on, the no Fa of driver looks at the road conditions at safety distance place, becomes major safety risks, if jeopardize the situation of traffic safety, can not in time brake train, will lead to a disaster.For this reason, the someone has invented the head lamp that can turn to, and has manually operation turn to, and also has by the control setup automatic steering.For example, Chinese patent disclosed " head lamp of railway locomotive automatic steering " (CN1011770B), this head lamp comprises by the deflectable head lamp lamp body of mechanical drive transmission, be used to detect the sensor of railway bending spring and head lamp self deflection angle, auto mat according to the deflection of detection signal control head lamp, adopt the deflection angle of close-loop control mode control head lamp, focusing light projector point is dropped on the railway of An full lookout distance, for traffic safety provides technical equipment and means.But also there is following shortcoming in this head lamp:
1. select unreasonable as the physical quantity and the corresponding sensor of controlled variable.This head lamp adopts force gauge to detect the centripetal force that produces when locomotive runs to railroad curve and characterizes the route curve radius, as everyone knows, the centripetal force that locomotive operation produces during to railroad curve, not only relevant with the route curve radius, also with the quality of locomotive, running velocity, line slope, the circuit evenness is relevant, especially, when the design railroad curve, the centnifugal force of just having taked technical measures to overcome or having produced when reducing locomotive operation to railroad curve, the level height of railroad curve place outer rail is higher than interior rail, the route curve radius is more little, in, the diff-H of outer rail is big more, when locomotive operation when the bend, locomotive tilts to the center of circle of route curve direction, the weight component of locomotive produces the centripetal force Yi Arrived locomotive that disappears and crosses the centnifugal force that is subjected to when curved.As seen, centripetal force and route curve radius are not unique, corresponding relation completely, can not be true, characterize the route curve radius exactly, therefore, control the deflection angle of head lamp as controlled variable with centripetal force, the curvature increment of its angular deflection increment and railroad curve is inconsistent, because locomotive speed, the route curve radius, the combined action of three principal elements of outer rail diff-H in the circuit bend, even at same bend place, this direction of installing detected centripetal force all can change because of the different of locomotive speed with size, therefore the focusing light projector point of this head lamp can not drop on the railway of the full lookout of peace distance exactly, the situation that the deflecting direction that also can occur head lamp sometimes and the turn direction of locomotive deviate from mutually.
2. the driving device of this head lamp adopts worm and gear, fixes a driving lever on the worm gear, utilizes driving lever to stir the head lamp support body, make it to deflect, the shortcoming of this structure is: (1) owing to have assembly clearance between driving lever and support body, the driving lever motion can not be synchronous with control signal, the control weak effect; (2) adopt driving lever to stir the head lamp support body, the arm of force is longer, and structure is not compact, the ability that support body opposing car body rocks; (3) because the unidirectional drive characteristic of worm and gear, promptly worm screw can the transmission worm gear, and worm gear can not the transmission worm screw, when head lamp breaks down, manually is difficult to recover head lamp to midway location, can not satisfy the requirement of keeping operation under this plant failure situation.
3. the auto mat of this head lamp adopts the conventional simulation circuit, and the precision of controller is low.
Owing to exist above-mentioned shortcoming, the focusing light projector point of this head lamp can not drop on exactly all the time on the railway of the full lookout of peace distance, and sensitivity is low,, radius of curve less in circuit curvature is during greater than 1000 meters, and automatic control was lost efficacy, and the head lamp tripping does not have response.
Summary of the invention
Purpose of the present invention provides a kind of precision, highly sensitive automatic steering device for headlight of railroad locomotive, and the focusing light projector point of head lamp drops on the railway of An full lookout distance all the time exactly.For realizing this purpose, the present invention adopts following technical scheme:
A kind of automatic steering device for headlight of railroad locomotive, comprise the auto mat that drives head lamp deflection motoring mechanism, railway line radius of curve detector and head lamp self-position sensor, controls head lamp deflection according to detection signal, it is characterized in that: described railway line radius of curve detector adopts displacement pickup, is used to detect the relative angular displacement amount between locomotive car body and the bogie truck.
Described displacement pickup adopts angular-motion transducer, is used to detect the relative angular displacement amount between locomotive car body and the bogie truck; Described displacement pickup also can adopt linear movement pick-up, is used for the chord length of relative rotary displacement camber line between place, detecting sensor probe position car body and bogie truck.
The actuator of described motoring mechanism adopts electrical motor, and driving device adopts gear cluster, and driving gear is located on the output shaft of electrical motor, and ring gear is located in the rotating shaft of head lamp, and driving gear, ring gear are meshing with each other.
The sensor of described head lamp self-position adopts angular-motion transducer, and its sensing head adopts gear, and the gear in this gear and the head lamp rotating shaft is meshing with each other.
The displacement pickup of described detection railway line radius of curve is installed between the car body and bogie truck of locomotive; This displacement pickup is installed on the car body of locomotive, and its sensing head and bogie truck flexibly connect; Or displacement pickup is installed on the bogie truck its sensing head and car body flexible connection.
The displacement pickup of described detection railway line radius of curve is installed on the bogie truck of locomotive, and its probe is connected with the draw bar of draw gear, or is connected with the connecting lever of draw gear, or is connected with the pipe link of draw gear.
Described displacement pickup also can adopt linear movement pick-up, is installed on the friction shock absorber of locomotive.
Described auto mat adopts digital control circuit, and input signal conditioning module, mould/number conversion module, data processing module, the signal that is electrically connected by order amplifies output module, the signal feedback module is formed close loop control circuit; Relative angular displacement signal between car body and bogie truck converts analog electrical signal to by sensor, input mould/number conversion module after the conditioning of input signal conditioning module, head lamp self-position angular displacement signal converts analog electrical signal to by sensor, from signal feedback module input mould/number conversion module, mould/number conversion module converts two signals to digital signal, through the data processing module calculation process, the motor that controls signal to head lamp that output is amplified.
Owing to be designed to and relatively rotate between the car body of locomotive and the bogie truck, so that locomotive can be by the circuit of various radius of curve, when locomotive passes through bend, relative gyroscopic movement can take place between car body and the bogie truck, the route curve radius is little, degreeof turn is big, otherwise, degreeof turn is little, car body becomes unique corresponding relation with degreeof turn between bogie truck with the railway line radius of curve that locomotive passes through, not disturbed by other factors, and degreeof turn increment and railway line curvature increment are linear relationships.Therefore, adopt the angular displacement signal between detected car body of angular-motion transducer and bogie truck, reflected the actual curve radius of railway line truly, exactly, this has just guaranteed the control accuracy of this device from the source.In addition, owing to adopt gear transmission, gear is meshing with each other, and is almost very close to each other, guaranteed that head lamp deflection and control signal are synchronous; Because gear transmission is reversible, but the manual reversion head lamp can continue to keep operation to midway location under the plant failure situation; And controller adopts digital circuit, and control accuracy is than the analogous circuit height; Said structure makes this device have very high precision and sensitivity, when the bend of locomotive operation in the minimal curve radius (125 meters) of design permission, the focusing light projector point of head lamp still can drop on the railway of An full lookout distance exactly, locomotive operation is very little in curvature, during the bend of 1700 meters of bending springs, device promptly can thoughts, but head lamp deflection.
Description of drawings
Fig. 1 is structure, the functional block diagram of this device.
Fig. 2 is the structural representation of head lamp motoring mechanism.
Fig. 3 is the A-A view of Fig. 2.
Fig. 4 is a kind of scheme of installation of route curve radius detector between car body and bogie truck.
Fig. 5 is the another kind of scheme of installation of route curve radius detector between car body and bogie truck.
Fig. 6 is a kind of scheme of installation of route curve radius detector between draw gear and bogie truck.
Fig. 7 is the another kind of scheme of installation of route curve radius detector between draw gear and bogie truck.
Fig. 8 is route curve radius detector another scheme of installation between draw gear and bogie truck.
Fig. 9 is the scheme of installation of route curve radius detector on friction shock absorber.
Figure 10 is the constructional drawing of angular-motion transducer.
Figure 11 is the functional block diagram of auto mat.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4: this device is by the sensor 2 of motoring mechanism, railway line radius of curve detector 1 and head lamp self-position, form according to the auto mat 3 of detection signal control head lamp deflection.Railway line radius of curve detector 1 is made up of displacement pickup 12, probe 13 and feeler lever 14.The sensor 2 of railway line radius of curve detector 1 and head lamp self-position all adopts displacement pickup; Motoring mechanism comprises actuator and driving device, actuator adopts electrical motor 4, driving device adopts gear cluster, driving gear 5 is located on the output shaft of electrical motor 4, ring gear 6 is located in the rotating shaft 9 of head lamp 8, driving gear 5, ring gear 6 are meshing with each other, and the sensing head of sensor 2 adopts gear 7, and gear 7 also is meshing with each other with gear 6.
According to the physical construction of locomotive, detector 1 has a plurality of installation sites and multiple mounting means on locomotive, and displacement pickup 12 can be installed on the car body 10, and its probe 13 can be installed on the bogie truck 11, and the installation site is corresponding with displacement pickup 12, as shown in Figure 4; Both installations that also can replace, promptly displacement pickup 12 can be installed on the bogie truck 11, and its probe 13 is installed on the car body 10, as shown in Figure 5.
For the locomotive that is equipped with draw bar, because the part of draw gear is installed on car body 10, another part is installed on bogie truck 11, also can detect the relative rotating angle of car bodies 10 and bogie truck 11 by displacement pickup 12 by means of the mechanical relation that causes between each parts of this device proper relative motion between relation in relative rotation or this device and the bogie truck 11 because of the 11 relative revolutions of car body 10 and bogie truck.
Referring to Fig. 6, Fig. 7, Fig. 8: draw gear is made of draw bar 18, connecting lever 16, pipe link 17. and an end of draw bar 18 is connected with locomotive car body 10, draw bar 18 other ends and connecting lever 16 are hinged, connecting lever 16 is hinged with pipe link 17, and connecting lever 16 is installed on the bogie truck 11 by hinge; When car body 10 with bogie truck 11 relative revolution took place, draw bar 18 drove connecting lever 16 and is a spot wobble with hinge along the vertical crank motion of car body, drives pipe link 17 along the cross-car crank motion.According to this mechanical movement relation, displacement pickup 12 can have the installation site more than three at least.One, as shown in Figure 6: displacement pickup 12 is installed on the bogie truck 11, and its probe 13 is connected with pipe link 17, during with detection pipe link 17 crank motions along the horizontal displacement of the lines amount of car body 10; Two, as shown in Figure 7: displacement pickup 12 is installed on the bogie truck 11, and its probe 13 contact with connecting lever 16, when swinging with detection connecting lever 16 along the horizontal displacement of the lines amount of car body 10; Three, as shown in Figure 8: displacement pickup 12 is installed on the bogie truck 11, and its probe 13 is connected with draw bar 18, during with detection draw bar 18 crank motions along car body 10 displacement of the lines amount longitudinally.
Since these displacement of the lines amounts all and the relative rotating angle of 11 of car body 10 and bogie trucks have definite mathematical conversion relation, be unique, cooresponding fully, can characterize degreeof turn exactly.Therefore, the sensor can use linear movement pick-up, and above-mentioned displacement of the lines amount is directly changed into and the corresponding electric signal amount of degreeof turn; Also can use angular-motion transducer, as shown in figure 10, the probe of this angular-motion transducer is a single-revolution arm 25, revoliving arm 25 is arranged vertically with the rotating shaft 24 of sensor 23, the one end is captiveed joint with the rotating shaft 24 of sensor 23, revoliving arm 25 drives the rotating shaft 24 of sensor and rotates, and the detected displacement of the lines amount of its free end promptly is converted into the angular displacement of rotating shaft 24, and this angular displacement is converted into and the corresponding electric signal amount of degreeof turn again.
Referring to Figure 11: the input signal conditioning module that auto mat 3 is electrically connected by order, mould/number conversion module, signal processing module, signal amplify the close loop control circuit that output module signal feedback module is formed.
The working process of this device: when locomotive passes through railroad curve, relative gyroscopic movement takes place between car body 10 and the bogie truck 11, the relative angular displacement amount that car body 10 and bogie truck are 11 converts analog electrical signal to by radius of curve detector 1, the bending direction of railway determines the positive and negative of electric signal, the intensity of the radius of curve decision electric signal of railway; Analog electrical signal is input mould/number conversion module after the conditioning of input signal conditioning module, head lamp self-position angular displacement signal converts analog electrical signal to by sensor 2, from signal feedback module input mould/number conversion module, mould/number conversion module converts two signals to digital signal, through the signal processing module calculation process, obtain the expected value and the currency of head lamp deflection, when expected value and currency not simultaneously, the control signal of controller 3 outputs after signal amplifies the output module amplification, electrical motor 4 runnings, gear 5 transmission gears 6, drive rotating shaft 9 deflections of head lamp 8, when currency is equal with expected value, controller 3 output no signals, head lamp 8 not deflections, thus the focusing light projector point of head lamp 8 is dropped on the railway of An full lookout distance all the time exactly.
Claims (10)
1. automatic steering device for headlight of railroad locomotive, comprise the auto mat that drives head lamp deflection motoring mechanism, railway line radius of curve detector and head lamp self-position sensor, controls head lamp deflection according to detection signal, it is characterized in that: described railway line radius of curve detector adopts displacement pickup, is used to detect the relative angular displacement amount between locomotive car body and the bogie truck.
2. automatic steering device for headlight of railroad locomotive according to claim 1 is characterized in that: described displacement pickup adopts angular-motion transducer.
3. automatic steering device for headlight of railroad locomotive according to claim 1 is characterized in that: described displacement pickup adopts linear movement pick-up, is used for the chord length of relative rotary displacement camber line between place, detecting sensor probe position car body and bogie truck.
4. automatic steering device for headlight of railroad locomotive according to claim 1, it is characterized in that: the actuator of described motoring mechanism adopts electrical motor, driving device adopts gear cluster, driving gear is located on the output shaft of electrical motor, ring gear is located in the rotating shaft of head lamp, and driving gear, ring gear are meshing with each other.
5. automatic steering device for headlight of railroad locomotive according to claim 1 is characterized in that: the sensor of described head lamp self-position adopts angular-motion transducer, and its sensing head adopts gear, and the gear in this gear and the head lamp rotating shaft is meshing with each other.
6. automatic steering device for headlight of railroad locomotive according to claim 1 is characterized in that: the displacement pickup of described detection railway line radius of curve is installed between the car body and bogie truck of locomotive.
7. automatic steering device for headlight of railroad locomotive according to claim 6 is characterized in that: described displacement pickup is installed on the car body of locomotive, and its sensing head and bogie truck flexibly connect; Or displacement pickup is installed on the bogie truck its sensing head and car body flexible connection.
8. automatic steering device for headlight of railroad locomotive according to claim 1, it is characterized in that: the displacement pickup of described detection railway line radius of curve is installed on the bogie truck of locomotive, its probe is connected with the draw bar of draw gear, or be connected, or be connected with the pipe link of draw gear with the connecting lever of draw gear.
9. automatic steering device for headlight of railroad locomotive according to claim 1 is characterized in that: described displacement pickup adopts linear movement pick-up, is installed on the friction shock absorber of locomotive.
10. automatic steering device for headlight of railroad locomotive according to claim 1, it is characterized in that: described auto mat adopts digital control circuit, and input signal conditioning module, mould/number conversion module, data processing module, the signal that is electrically connected by order amplifies output module, the signal feedback module is formed close loop control circuit; Relative angular displacement signal between car body and bogie truck converts analog electrical signal to by sensor, input mould/number conversion module after the conditioning of input signal conditioning module, head lamp self-position angular displacement signal converts analog electrical signal to by sensor, from signal feedback module input mould/number conversion module, mould/number conversion module converts two signals to digital signal, through the data processing module calculation process, the motor that controls signal to head lamp that output is amplified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100210886A CN100410119C (en) | 2005-06-16 | 2005-06-16 | Automatic steering device for headlight of railroad locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100210886A CN100410119C (en) | 2005-06-16 | 2005-06-16 | Automatic steering device for headlight of railroad locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1702004A CN1702004A (en) | 2005-11-30 |
| CN100410119C true CN100410119C (en) | 2008-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100210886A Expired - Fee Related CN100410119C (en) | 2005-06-16 | 2005-06-16 | Automatic steering device for headlight of railroad locomotive |
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| CN (1) | CN100410119C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105109400A (en) * | 2015-08-21 | 2015-12-02 | 中联重机股份有限公司 | Vehicle following headlamp system and control method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048838U (en) * | 1989-04-04 | 1989-12-06 | 铁道部科学研究院通信信号研究所 | High-intensity turnable headlamp of locomotive |
| CN1011770B (en) * | 1988-08-29 | 1991-02-27 | 王福祥 | Automatic steering frontlamp of railway locomotive |
| US20020039295A1 (en) * | 2000-08-09 | 2002-04-04 | Koito Manufacturing Co., Ltd. | Vehicle headlamp system |
| JP2003260979A (en) * | 2002-03-12 | 2003-09-16 | Mitsubishi Motors Corp | Light distribution control device |
| US20050018437A1 (en) * | 2003-07-10 | 2005-01-27 | Takashi Hori | Vehicle lighting apparatus |
| DE10345304A1 (en) * | 2003-09-30 | 2005-04-21 | Hella Kgaa Hueck & Co | Method for controlling vehicle lighting with AFS-control device, requires bringing vehicle lighting into axi-parallel reference direction for given time |
| CN2797151Y (en) * | 2005-06-16 | 2006-07-19 | 成都铁路局科学技术研究所 | Automatic steering device of railroad locomotive headlamp |
-
2005
- 2005-06-16 CN CNB2005100210886A patent/CN100410119C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1011770B (en) * | 1988-08-29 | 1991-02-27 | 王福祥 | Automatic steering frontlamp of railway locomotive |
| CN2048838U (en) * | 1989-04-04 | 1989-12-06 | 铁道部科学研究院通信信号研究所 | High-intensity turnable headlamp of locomotive |
| US20020039295A1 (en) * | 2000-08-09 | 2002-04-04 | Koito Manufacturing Co., Ltd. | Vehicle headlamp system |
| JP2003260979A (en) * | 2002-03-12 | 2003-09-16 | Mitsubishi Motors Corp | Light distribution control device |
| US20050018437A1 (en) * | 2003-07-10 | 2005-01-27 | Takashi Hori | Vehicle lighting apparatus |
| DE10345304A1 (en) * | 2003-09-30 | 2005-04-21 | Hella Kgaa Hueck & Co | Method for controlling vehicle lighting with AFS-control device, requires bringing vehicle lighting into axi-parallel reference direction for given time |
| CN2797151Y (en) * | 2005-06-16 | 2006-07-19 | 成都铁路局科学技术研究所 | Automatic steering device of railroad locomotive headlamp |
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| CN1702004A (en) | 2005-11-30 |
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Granted publication date: 20080813 Termination date: 20110616 |