CN105071741A - Apparatus with limit switches for controlling speed reducer and method thereof - Google Patents
Apparatus with limit switches for controlling speed reducer and method thereof Download PDFInfo
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- CN105071741A CN105071741A CN201510503034.7A CN201510503034A CN105071741A CN 105071741 A CN105071741 A CN 105071741A CN 201510503034 A CN201510503034 A CN 201510503034A CN 105071741 A CN105071741 A CN 105071741A
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Abstract
The invention discloses an apparatus with limit switches for controlling a speed reducer and the method thereof. The apparatus comprises a host computer, more than one limit switches and an A/D module, wherein each limit switch outputs a detection value to the A/D module, and the A/D module outputs digital signals to the host computer. After the limit switches output detection signals to the A/D module, the A/D module conducts analog-to-digital conversion and converts the detection signals into digital signals which are then sent to the host computer. When the digital signals reach a set threshold, the host computer determines that the detection signals of the limit switches are effective. The quality requirements on conversion heads and long wire materials are lowered, the number of the limit switches and the communication lines is substantially reduced. The position can be detected by reading the rotation turns of the speed reducer, and the signal outputs of the limit switches share a same signal output wire through AD means. In this way, the number of switches and communication lines is half that of the original ones.
Description
Technical field
The present invention discloses a kind of electric machinery control device and method, particularly the Apparatus and method for that controls of a kind of reducing motor with limit switch.
Background technology
Electric machinery control device of the prior art generally includes the stroke plate of host computer and band limit switch, and both adopt conversion head or long line communication, and during use, limit switch detects corresponding baffle plate, then perform corresponding operating.In the process of equipment work, signal due to limit switch is easily subject to external interference and causes limit switch detection signal to be lost, or because conversion head or the bad limit switch signal that causes of long linear contact lay detect extremely, therefore easily cause equipment uncontrolled, thus the race tooth action of overtravel occurs.Because equipment is with reducing gear, there is the space number of turns when gear rotating switches in motor, so under the stroke of identical limit switch, the rotating number of turns of equipment is not a fixed number, has relatively large deviation.When limit switch signal is lost, this deviation may cause slight problem of running tooth.If equipment is powered on, pressure action is to find position, and serious race tooth problem will occur.
Summary of the invention
Limit switch for the above-mentioned electric machinery control device of the prior art mentioned easily is subject to external interference, thus there is the shortcoming of running tooth phenomenon, the invention provides the Apparatus and method for that a kind of reducing motor with limit switch controls, it carries out analog-to-digital conversion by A/D modular converter to limit switch signal, be transferred to host computer again, thus can effectively solve the problem.
The technical scheme that the present invention solves the employing of its technical problem is: the equipment that a kind of reducing motor with limit switch controls, equipment comprises host computer, more than one limit switch and A/D module, output detections value is to A/D module respectively for each limit switch, and A/D module output digit signals is to host computer.
A kind of control method of the equipment adopting the reducing motor of above-mentioned band limit switch to control, the method is that limit switch output detection signal is to A/D module, after carrying out analog-to-digital conversion by A/D module, host computer is exported to after converting thereof into digital signal, when digital signal reaches setting threshold, host computer is then judged as that limit switch detection signal is effective.
The technical scheme that the present invention solves the employing of its technical problem further comprises:
Described equipment also includes the encoder for reading the electric machine rotation number of turns, and encoder output motor rotates the number of turns to host computer.
Described equipment is also provided with state monitoring signal circuit, and state monitoring signal connection is between limit switch and host computer.
Described limit switch adopts Hall element.
Described motor is connected with the detection module of the electric machine rotation number of turns; the detection module of the electric machine rotation number of turns detects the electric machine rotation number of turns; and export to host computer, when the turning collar rapid pulse punching of motor reaches set point, PC control equipment carries out stoppage protection in time.
Be provided with state monitoring signal circuit between described limit switch and host computer, realize the state of host computer detectability bit switch in real time, if one occurs broken string situation, carry out broken string abnormality processing at once.
Described limit switch adopts Hall element, and host computer judges the on off operating mode of the connecting line be connected on limit switch, can judge whether broken string situation.
Described generation is slight run tooth after, remake after control appliance backhaul setpoint distance and shut down process.
The invention has the beneficial effects as follows: the present invention reduces the quality requirements of conversion head and long line material: former technology is too large to the dependence of communication signal, very high to the quality requirements of material, and equipment in the course of the work, it is inevitable existence that vibrations or broken line bend, and real-time burn out detection solves this problem well.Greatly reduce the number of limit switch and the number of connection: switch and the connection of former technology are a lot, the present invention can by reading the way of the electric machine rotation number of turns to the detection of position, and the signal output of institute's limit switches can share an identical output line by AD method, so original switch number and connection can be reduced nearly half by the present invention.For compact gardens electric tool, regardless of in performance, efficiency, safety and cost, all have an enormous advantage.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 is conventional control system block diagram.
Fig. 2 is classical control system schematic diagram.
Fig. 3 is control system principle of the present invention and block diagram.
Embodiment
The present embodiment is the preferred embodiment for the present invention, and other its principles all are identical with the present embodiment or approximate with basic structure, all within scope.
Please refer to accompanying drawing 3, control appliance of the present invention mainly comprises host computer, more than one limit switch and A/D module, each limit switch is respectively at A/D model calling, limit switch output detections value is to A/D module, A/D conversion is carried out by A/D module, A/D module is connected with host computer, and A/D module output digit signals is to host computer.In the present embodiment, be also provided with encoder, encoder is connected on motor, for reading the electric machine rotation number of turns, and the electric machine rotation number of turns is exported to host computer.In the present embodiment, be also provided with state monitoring signal circuit, state monitoring signal connection, between limit switch and host computer, for carrying out limit switch disconnection monitoring, and is transferred to host computer.In the present embodiment, limit switch adopts Hall element.
The using method of above-mentioned control appliance, namely control method of the present invention is: limit switch output detection signal is to A/D module, after carrying out analog-to-digital conversion by A/D module, host computer is exported to after converting thereof into digital signal, when it reaches setting threshold, host computer is then judged as that limit switch detection signal is effective.Stroke due to control appliance follows the distance dependent of limit switch, once the distance of limit switch is fixed, then the maximum rotation number of turns of motor also just secures.Method of the present invention is on the effective basis of limit switch; add the detection of the electric machine rotation number of turns; namely detect the electric machine rotation number of turns by encoder, and export to host computer, as long as the turning collar rapid pulse punching of motor reaches set point; even without detection limit switch signal; equipment also can carry out stoppage protection in time, realizes in the course of the work, by reading the rotation number of turns of motor; care testing device signal condition in the course of the work, realizing also can orderly closedown without travel switch signal.Limit switch exports two states when switch, in order to find broken string situation in time, in the present embodiment, by additional state monitoring signal circuit, realize the state of host computer detectability bit switch in real time, if one there is broken string situation, carry out broken string abnormality processing at once, prevent to run the exceptions such as tooth, ensure that the fail safe of system, in the present embodiment, because limit switch adopts Hall element, host computer only needs the on off operating mode judging the connecting line be connected on limit switch, can judge whether broken string situation.The present invention, after generation slightly runs tooth, can not carry out cancel closedown immediately, and after control appliance backhaul one segment distance (setting in advance), remake shutdown process, thus has effectively stopped the possibility causing race tooth.
The present invention reduces the quality requirements of conversion head and long line material: former technology is too large to the dependence of communication signal, very high to the quality requirements of material, and equipment in the course of the work, it is inevitable existence that vibrations or broken line bend, and real-time burn out detection solves this problem well.Greatly reduce the number of limit switch and the number of connection: switch and the connection of former technology are a lot, the present invention can by reading the way of the electric machine rotation number of turns to the detection of position, and the signal output of institute's limit switches can share an identical output line by AD method, so original switch number and connection can be reduced nearly half by the present invention.For compact gardens electric tool, regardless of in performance, efficiency, safety and cost, all have an enormous advantage.
Claims (9)
1. the equipment that controls of the reducing motor with limit switch, it is characterized in that: described equipment comprises host computer, more than one limit switch and A/D module, output detections value is to A/D module respectively for each limit switch, and A/D module output digit signals is to host computer.
2. the equipment of the reducing motor control of band limit switch according to claim 1, is characterized in that: described equipment also includes the encoder for reading the electric machine rotation number of turns, and encoder output motor rotates the number of turns to host computer.
3. the equipment of the reducing motor control of band limit switch according to claim 1, it is characterized in that: described equipment is also provided with state monitoring signal circuit, state monitoring signal connection is between limit switch and host computer.
4. the equipment of the reducing motor control of band limit switch according to claim 1, is characterized in that: described limit switch adopts Hall element.
5. the control method of the equipment adopting the reducing motor as the band limit switch in Claims 1-4 as described in any one to control, it is characterized in that: described method is that limit switch output detection signal is to A/D module, after carrying out analog-to-digital conversion by A/D module, host computer is exported to after converting thereof into digital signal, when digital signal reaches setting threshold, host computer is then judged as that limit switch detection signal is effective.
6. control method according to claim 5; it is characterized in that: the detection module described motor being connected with the electric machine rotation number of turns; the detection module of the electric machine rotation number of turns detects the electric machine rotation number of turns; and export to host computer; when the turning collar rapid pulse punching of motor reaches set point, PC control equipment carries out stoppage protection in time.
7. control method according to claim 5, it is characterized in that: between described limit switch and host computer, be provided with state monitoring signal circuit, realize the state of host computer detectability bit switch in real time, if one occurs broken string situation, carry out broken string abnormality processing at once.
8. control method according to claim 7, is characterized in that: described limit switch adopts Hall element, and host computer judges the on off operating mode of the connecting line be connected on limit switch, can judge whether broken string situation.
9. control method according to claim 5, is characterized in that: described generation is slight run tooth after, remake after control appliance backhaul setpoint distance and shut down process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510503034.7A CN105071741A (en) | 2015-08-17 | 2015-08-17 | Apparatus with limit switches for controlling speed reducer and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510503034.7A CN105071741A (en) | 2015-08-17 | 2015-08-17 | Apparatus with limit switches for controlling speed reducer and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105071741A true CN105071741A (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510503034.7A Pending CN105071741A (en) | 2015-08-17 | 2015-08-17 | Apparatus with limit switches for controlling speed reducer and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105955175A (en) * | 2016-05-12 | 2016-09-21 | 李保华 | Garden electric equipment and communication method |
| CN111272055A (en) * | 2020-03-16 | 2020-06-12 | 天津天安起重电器有限公司 | Three-phase motor braking distance detection device and method |
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| US20080142487A1 (en) * | 2004-10-13 | 2008-06-19 | Sodick Co., Ltd. | Automatic Wire Threader |
| CN101825894A (en) * | 2010-04-30 | 2010-09-08 | 北京航空航天大学 | SF6 high-voltage circuit breaker state intelligent monitoring and health management system |
| CN101968636A (en) * | 2010-09-18 | 2011-02-09 | 青岛众盟电子科技有限公司 | Closed loop control method for indoor wind wave water tank wave maker |
| CN204470713U (en) * | 2015-03-12 | 2015-07-15 | 浙江晨龙锯床股份有限公司 | Band sawing machine intelligence saw cutting system |
| CN204886787U (en) * | 2015-08-17 | 2015-12-16 | 李保华 | Take equipment of limit switch's gear motor control |
-
2015
- 2015-08-17 CN CN201510503034.7A patent/CN105071741A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080142487A1 (en) * | 2004-10-13 | 2008-06-19 | Sodick Co., Ltd. | Automatic Wire Threader |
| CN101825894A (en) * | 2010-04-30 | 2010-09-08 | 北京航空航天大学 | SF6 high-voltage circuit breaker state intelligent monitoring and health management system |
| CN101968636A (en) * | 2010-09-18 | 2011-02-09 | 青岛众盟电子科技有限公司 | Closed loop control method for indoor wind wave water tank wave maker |
| CN204470713U (en) * | 2015-03-12 | 2015-07-15 | 浙江晨龙锯床股份有限公司 | Band sawing machine intelligence saw cutting system |
| CN204886787U (en) * | 2015-08-17 | 2015-12-16 | 李保华 | Take equipment of limit switch's gear motor control |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105955175A (en) * | 2016-05-12 | 2016-09-21 | 李保华 | Garden electric equipment and communication method |
| CN111272055A (en) * | 2020-03-16 | 2020-06-12 | 天津天安起重电器有限公司 | Three-phase motor braking distance detection device and method |
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Application publication date: 20151118 |
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| RJ01 | Rejection of invention patent application after publication |