CN202068370U - Direct current frequency conversion control system of road braking machine - Google Patents

Direct current frequency conversion control system of road braking machine Download PDF

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Publication number
CN202068370U
CN202068370U CN2011201299050U CN201120129905U CN202068370U CN 202068370 U CN202068370 U CN 202068370U CN 2011201299050 U CN2011201299050 U CN 2011201299050U CN 201120129905 U CN201120129905 U CN 201120129905U CN 202068370 U CN202068370 U CN 202068370U
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CN
China
Prior art keywords
road
frequency conversion
brushless motor
direct current
gate
Prior art date
Application number
CN2011201299050U
Other languages
Chinese (zh)
Inventor
何坚源
Original Assignee
珠海市海菲自动门有限公司
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Filing date
Publication date
Application filed by 珠海市海菲自动门有限公司 filed Critical 珠海市海菲自动门有限公司
Priority to CN2011201299050U priority Critical patent/CN202068370U/en
Application granted granted Critical
Publication of CN202068370U publication Critical patent/CN202068370U/en

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Abstract

The utility model discloses a direct current frequency conversion control system of a road braking machine. The direct current frequency conversion control system comprises a power supply, a direct current frequency conversion controller electrically connected with the power supply and a direct current brushless motor electrically connected with the direct current frequency conversion controller, wherein a rotating shaft of the direct current brushless motor is connected with a road rod of the road braking machine, and the direct current frequency conversion controller outputs control signals to the direct current brushless motor for realizing controlling of rotation of the road rod of the road braking machine. The direct current frequency conversion control system is simple in structure, the direct current frequency conversion controller and the direct current brushless motor are adopted for controlling the rotation of the road rod of the road braking machine, noise is little, starting and shutdown buffer is available, operation is safe, thereby solving the problem of in-place shaking of the road rod.

Description

The DC frequency-changing control system of a kind of road gate

Technical field

The utility model relates to the control system of a kind of road gate, is specifically related to the DC frequency-changing control system of a kind of road gate, belongs to the Electromechanical Control technical field.

Background technology

Existing motive wave gate device adopts the AC frequency conversion control system to carry out drive controlling mostly, it specifically has two kinds of control modes, a kind of is to adopt the control mode of PLC programming technique in conjunction with the Frequency Converter Control alternating current machine, and another kind is to adopt the control mode of mcu programming technology in conjunction with Frequency Converter Control unsteady flow motor.When adopting above-mentioned AC frequency conversion control system drive controlling road gate, because speed regualtion of AC motor poor performance and do not have position feedback, the road bar drops to does not have the action of slowing down when the end and rising put in place, the road bar exists rigidity to force when stopping to stop, bar can teetertotter when causing bar to put in place, causes the bar distortion easily.The road gate starts and stops is to realize by the touch-switch break-make, and direct high-speed starting when alternating current machine starts does not have and slowly quickens buffering course, simultaneously, there is not reduction of speed brake buffering when stopping, directly forced outage, cause bar starting and when stopping noise big, damage parts easily, reduce useful life; Adopt the road gate operation of AC Motor Control dangerous simultaneously, when using alternating current machine, meet bar fall bar run into barrier such as people or object after alternating current machine can not stop automatically, the alternating current chance is outputting power always, can cause object impaired or human body is injured, causes security incident easily, when the blocking the way gate clips to barrier, the power of alternating current machine can suddenly heighten, and noise occurs and increases, and causes gate to shorten useful life.

The utility model content

The purpose of this utility model is at the problems referred to above weak point, provide a kind of noise little, have the road gate DC frequency-changing control system that starts and shut down buffering and security of operation, solve the problem that the road bar puts in place and rocks.

In order to achieve the above object, the utility model is by the following technical solutions:

The DC frequency-changing control system of a kind of road gate comprises: power supply; DC frequency conversion controller, it is electrically connected with power supply; Dc brushless motor, it is electrically connected with DC frequency conversion controller, and its rotating shaft is connected with the road bar of road gate by transmission mechanism.Described DC frequency conversion controller outputs control signals to dc brushless motor, realizes that the road bar of control road gate rotates.

As preferably, above-mentioned dc brushless motor is the dc brushless motor that contains position sensor.

Further preferred, above-mentioned position transducer is a Hall element; Perhaps above-mentioned position transducer is an electromagnetic position sensor; Perhaps above-mentioned position transducer is near the switching regulator position transducer; Or above-mentioned position transducer is a photoelectric position sensor.

Preferred as another, above-mentioned dc brushless motor is the position-sensor-free dc brushless motor.

The utility model is simple in structure, adopts DC frequency conversion controller to rotate in conjunction with the road bar of dc brushless motor control road gate, and noise is little, have and start and shut down buffering and security of operation, solves the problem that the road bar puts in place and rocks.

Description of drawings

Fig. 1 is the utility model electric control theory sketch.

Come the utility model is further described below in conjunction with the drawings and specific embodiments.

Embodiment

As shown in Figure 1, road described in the utility model gate DC frequency-changing control system is used to control road bar 4 rotations of gate, and it comprises: power supply 1, DC frequency conversion controller 2 and dc brushless motor 3 are specially:

Above-mentioned DC frequency conversion controller 2 is electrically connected with power supply 1; And dc brushless motor 3 is electrically connected with DC frequency conversion controller 2, and its rotating shaft is connected with the road bar 4 of road gate by transmission mechanism.Described DC frequency conversion controller 2 outputs control signals to dc brushless motor 3, realizes that the road bar 4 of control road gate rotates.

As preferably, above-mentioned dc brushless motor 3 is for containing the dc brushless motor of position sensor.Further preferred, above-mentioned position transducer is a Hall element; Perhaps above-mentioned position transducer is an electromagnetic position sensor; Perhaps above-mentioned position transducer is near the switching regulator position transducer; Or above-mentioned position transducer is a photoelectric position sensor.Wherein, Hall element is an optimum implementation as position transducer.Above-mentioned position transducer can be to the displacement information of DC frequency conversion controller 2 feedback dc brushless motors 3; velocity information or torsion information; DC frequency conversion controller 2 is controlled dc brushless motor 3 according to feedback information and preset data; as the road bar 4 of the gate of holding sway runs into obstacle and makes dc brushless motor 3 torsion or speed occur when slack-off; position transducer is sent to DC frequency conversion controller 2 to torsion feedback information or speed feedback information; and carry out to dc brushless motor 3 by DC frequency conversion controller 2 output stopping signals and to shut down, prevent that dc brushless motor 3 from continuing outputting powers and causing wound human body or crash through other object of bar 4.

The utility model adopts above technical scheme to have the following advantages:

1) solves the road gate and start, stop the big problem of noise.Because the utility model adopts the DC frequency-changing control technology; the accurate precision height of its FREQUENCY CONTROL; dc brushless motor has good speed adjusting performance; can realize dc brushless motor by low frequency to high frequency slowly quicken and by the slowly deceleration of high frequency to low frequency; its mode that slow employing of speed is slowly quickened when starting; after reaching the quick speed of service that DC frequency conversion controller sets, the detected speed of position transducer moves by setting speed again; and the blocking the way bar will drop to the end or rising puts in place in the time of need braking slowly reduction of speed shutdown; be the position sensor to displacement information when reaching the shift value that DC frequency conversion controller sets; DC frequency conversion controller output signal to reduce the speed is to dc brushless motor; make its slowly reduction of speed; after putting in place, last road bar shuts down; thereby realize the slow startup of road bar and stop; therefore the road gate starts and stops steadily, and noise is low.And existing road gate adopts alternating frequency conversion technique; the easy frequency of occurrences of its FREQUENCY CONTROL low precision equifrequent instability problem of beating; and alternating current machine can't realize that low-frequency start and reduction of speed shut down, and promptly can't realize slowly stably starting and stopping, thereby cause gate to start and to stop noise big.

2) solve the road gate and move unsafe problem.The utility model adopts DC frequency conversion controller to rotate in conjunction with the road bar of dc brushless motor control road gate; the blocking the way bar runs into obstacle makes dc brushless motor torsion or speed occur when slack-off; position transducer is sent to DC frequency conversion controller to torsion feedback information or speed feedback information; and export stopping signal to dc brushless motor by DC frequency conversion controller and carry out shutdown; simultaneously; DC frequency conversion controller is exported the counter-rotating of reverse signal control dc brushless motor rapidly, prevents that dc brushless motor from continuing outputting power and causing wound human body or crash through other object of gate.And existing road gate adopts the AC frequency conversion control technology, alternating current machine does not have feedback, and alternating current machine can not stop automatically after it met gate and clips to barrier such as people or object, and the alternating current chance is outputting power always, can cause human body injured or object is worn-out, cause security incident easily.

3) solve the road gate because of starting and stop not have the problem that buffering causes bar to rock.This employing of the utility model DC frequency-changing control system control road gate rotates; because of dc brushless motor has good speed adjusting performance; what the DC frequency-changing system adopted is the mode of slowly quickening startup and braking and slowly slow down and shut down; when the road bar starts; slowly quicken, start and steadily quicken slowly thereby not can occur starting to rock.The blocking the way bar will drop to the end or rising puts in place in the time of need braking slowly reduction of speed shutdown; be that the displacement information of the position sensor feedback of dc brushless motor is when reaching the default displacement of DC frequency conversion controller; DC frequency conversion controller output frequency reducing control signal control dc brushless motor reduction of speed is slack-off; then when the displacement information of position sensor feedback reaches default another shift value of DC frequency conversion controller; be that bar drops to the end or rising puts in place; dc brushless motor is shut down under lower-speed state; the road bar drop to the end or rising put in place stop before speed very low; rock basic disappearance when therefore the road bar stops, improving the useful life of road bar.And existing road gate adopts the AC frequency conversion control system, and starting and stopping not to have buffering, causes bar startup and shutdown moment rigidity impulse force big, damages parts easily, thereby reduces the useful life of road gate.

Should be noted that above-mentioned dc brushless motor also can be the position-sensor-free dc brushless motor.Existing dc brushless motor mostly has the position that position transducer is checked rotor, thereby can feed back displacement information, velocity information or the torsion information of dc brushless motor, and along with development of science and technology, the position-sensor-free dc brushless motor comes into vogue, though there is not the embedded position transducer, but its can by the back-emf method equally can detection rotor the position, thereby also can feed back displacement information, velocity information or the torsion information of dc brushless motor.

Claims (7)

1. the DC frequency-changing control system of a road gate is characterized in that comprising:
Power supply;
DC frequency conversion controller, it is electrically connected with power supply;
Dc brushless motor, it is electrically connected with DC frequency conversion controller, and its rotating shaft is connected with the road bar of road gate by transmission mechanism.
Described DC frequency conversion controller outputs control signals to dc brushless motor, realizes that the road bar of control road gate rotates.
2. the DC frequency-changing control system of road according to claim 1 gate is characterized in that: described dc brushless motor is the dc brushless motor that contains position sensor.
3. the DC frequency-changing control system of road according to claim 2 gate is characterized in that: described position transducer is a Hall element.
4. the DC frequency-changing control system of road according to claim 2 gate is characterized in that: described position transducer is an electromagnetic position sensor.
5. the DC frequency-changing control system of road according to claim 2 gate is characterized in that: described position transducer is near the switching regulator position transducer.
6. the DC frequency-changing control system of road according to claim 2 gate is characterized in that: described position transducer is a photoelectric position sensor.
7. the DC frequency-changing control system of road according to claim 1 gate is characterized in that: described dc brushless motor is the position-sensor-free dc brushless motor.
CN2011201299050U 2011-04-28 2011-04-28 Direct current frequency conversion control system of road braking machine CN202068370U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201299050U CN202068370U (en) 2011-04-28 2011-04-28 Direct current frequency conversion control system of road braking machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201299050U CN202068370U (en) 2011-04-28 2011-04-28 Direct current frequency conversion control system of road braking machine

Publications (1)

Publication Number Publication Date
CN202068370U true CN202068370U (en) 2011-12-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201299050U CN202068370U (en) 2011-04-28 2011-04-28 Direct current frequency conversion control system of road braking machine

Country Status (1)

Country Link
CN (1) CN202068370U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104233975A (en) * 2013-06-18 2014-12-24 重庆金美通信有限责任公司 Brushless motor drive based scissors door system
CN104617828A (en) * 2015-02-11 2015-05-13 武汉宝久电子有限公司 System and method for controlling alternating-current permanent-magnet synchronous servo motor of barrier gate
CN105871259A (en) * 2016-03-29 2016-08-17 王军华 Inlet-outlet equipment and control apparatus thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104233975A (en) * 2013-06-18 2014-12-24 重庆金美通信有限责任公司 Brushless motor drive based scissors door system
CN104617828A (en) * 2015-02-11 2015-05-13 武汉宝久电子有限公司 System and method for controlling alternating-current permanent-magnet synchronous servo motor of barrier gate
CN104617828B (en) * 2015-02-11 2017-06-06 武汉宝久创美科技有限公司 The AC permanent-magnet synchronous servo motor control system and control method of barrier gate device
CN105871259A (en) * 2016-03-29 2016-08-17 王军华 Inlet-outlet equipment and control apparatus thereof

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111207

Termination date: 20160428