WO2014079035A1 - 一种机械设备 - Google Patents

一种机械设备 Download PDF

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Publication number
WO2014079035A1
WO2014079035A1 PCT/CN2012/085133 CN2012085133W WO2014079035A1 WO 2014079035 A1 WO2014079035 A1 WO 2014079035A1 CN 2012085133 W CN2012085133 W CN 2012085133W WO 2014079035 A1 WO2014079035 A1 WO 2014079035A1
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WIPO (PCT)
Prior art keywords
sensing
inductive
signal
output
power
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PCT/CN2012/085133
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English (en)
French (fr)
Inventor
杨国坤
吴俊豪
林昆贤
齐明虎
郭振华
汪永强
陈增宏
李晨阳子
舒志优
杨卫兵
Original Assignee
深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/704,334 priority Critical patent/US8901873B2/en
Publication of WO2014079035A1 publication Critical patent/WO2014079035A1/zh

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/125—Control of position or direction using feedback using discrete position sensor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/08—Control devices operated by article or material being fed, conveyed or discharged

Definitions

  • the present invention relates to the field of machinery, and in particular to a mechanical device.
  • the electric motor is a device that converts electric energy into mechanical energy.
  • the most widely used electric motor is mainly an asynchronous motor, which has the advantages of convenient use, reliable operation, low price and firm structure. Therefore, the asynchronous motor is produced in industrial and agricultural production and transportation. It is widely used in various fields such as defense and business.
  • the power system of the motion mechanism is mainly composed of an asynchronous motor 11 and a speed reducer 12, and the asynchronous motor 11 supplies power to the speed reducer 12 so that the speed reducer 12 Drive the belt 13 to move.
  • the control principle is mainly that an inductor 16 is mounted on the initial position 14 and the end position 15 of the movement stroke of the conveyor belt 13, and the inductive object 17 is mounted on the conveyor belt 13 to move with the movement of the conveyor belt 13, and Corresponding to between the initial position 14 and the end position 15 of the movement stroke.
  • the sensor 16 senses the object 17 to be sensed, and then sends an induction signal to the control device 18, thereby stopping the movement of the conveyor belt 13 and causing the conveyor belt 13 to be transported.
  • the actual movement of the stroke does not exceed the prescribed movement stroke.
  • the control of the asynchronous motor 11 can be achieved in the above manner, but the inductor 16 of the initial position 14 and the end position 15 is an indispensable important component that is mounted outside the power system, when performing equipment maintenance and maintenance, The artificial reason is that it is easy to accidentally touch the sensor 16 or damage the sensor 16, so that the sensor 16 cannot work normally, and it is easy to cause malfunction of the device.
  • the technical problem to be solved by the present invention is to provide a mechanical device capable of reducing the probability of failure of the device and improving the reliability of the device.
  • a mechanical device including: a control device, a power device, and a positioning device fixed on the power device; the power device includes an output mechanism and a drive output mechanism for a cycle
  • the moving power mechanism includes a power unit and a rotating unit. The power unit is coupled to the rotating unit to power the rotating unit, and the rotating unit is coupled to the output mechanism to drive the output mechanism to perform periodic motion.
  • the positioning device includes the sensing component and the at least one The sensing member, the sensing member and the sensing member are fixed to the rotating unit, and the other is fixed to the output mechanism for periodically moving with the periodic movement of the output mechanism; wherein the control device comprises a signal counter and a signal amplifier, Each time the sensing element and the inductive component are in a predetermined relative position, the signal amplifier is configured to receive and process the sensing component to sense the sensing signal emitted by the sensing component, and transmit the processed sensing signal to the signal counter, and the signal counter is accumulated. Receiving processed signal Number, issuing a predetermined control signal to the mechanism when the power reaches a threshold number of times the detection signal after reception processing.
  • the output mechanism is an output rotating shaft
  • the sensing component is fixed on the power mechanism, and is fixed on the output rotating shaft by the sensing component to rotate with the rotation of the output rotating shaft, and each time the driven component rotates to a position facing the sensing component
  • the control device receives the sensing component to sense the sensing signal emitted by the sensing component, and sends a control signal to the power mechanism to stop the rotation of the output shaft when the number of times the sensing signal is received reaches a threshold.
  • the positioning device comprises an inductive component mounting ring, which is fixed on the output rotating shaft by the sensing component mounting ring to rotate with the rotation of the output rotating shaft, and the number of the sensing components is two, and the two inductive components are respectively fixed in the sensed
  • the first position and the second position of the mounting ring are respectively passed to a position facing the sensing member when being rotated by the sensing member mounting ring.
  • the output mechanism is an output rotating shaft fixed to the power mechanism by the sensing member
  • the sensing member is fixed on the output rotating shaft to rotate with the rotation of the output rotating shaft, and each time the sensing member rotates to a position facing the sensed member
  • the control device receives the sensing component to sense the sensing signal emitted by the sensing component, and sends a control signal to the power mechanism to stop the rotation of the output shaft when the number of times the sensing signal is received reaches a threshold.
  • the number of the inductive members is two, and the two inductive members are respectively fixed to the first position and the second position of the power mechanism, so that the sensing member rotates through the position opposite to the two inductive members respectively.
  • the power unit is an asynchronous motor
  • the rotating unit is a speed reducer
  • the signal counter is a pulse counter.
  • the mechanical device is specifically used for the manufacture of a flat panel display device.
  • a mechanical device including a control device, a power device and a positioning device fixed on the power device;
  • the power device includes an output mechanism and a drive output mechanism for periodic motion
  • the power mechanism, the positioning device comprises an inductive component and at least one inductive component, one of the inductive component and the inductive component is fixed on the power mechanism, and the other is fixed on the output mechanism to periodically move with the periodic movement of the output mechanism
  • the control device receives the sensing component to sense the sensing signal emitted by the sensing component, and issues a predetermined schedule to the power mechanism when the number of times the sensing signal is received reaches a threshold control signal.
  • the output mechanism is an output rotating shaft
  • the sensing component is fixed on the power mechanism, and is fixed on the output rotating shaft by the sensing component to rotate with the rotation of the output rotating shaft, and each time the driven component rotates to a position facing the sensing component
  • the control device receives the sensing component to sense the sensing signal emitted by the sensing component, and sends a control signal to the power mechanism to stop the rotation of the output shaft when the number of times the sensing signal is received reaches a threshold.
  • the positioning device comprises an inductive component mounting ring, which is fixed on the output rotating shaft by the sensing component mounting ring to rotate with the rotation of the output rotating shaft, and the number of the sensing components is two, and the two inductive components are respectively fixed in the sensed
  • the first position and the second position of the mounting ring are respectively passed to a position facing the sensing member when being rotated by the sensing member mounting ring.
  • the output mechanism is an output rotating shaft fixed to the power mechanism by the sensing member
  • the sensing member is fixed on the output rotating shaft to rotate with the rotation of the output rotating shaft, and each time the sensing member rotates to a position facing the sensed member
  • the control device receives the sensing component to sense the sensing signal emitted by the sensing component, and sends a control signal to the power mechanism to stop the rotation of the output shaft when the number of times the sensing signal is received reaches a threshold.
  • the number of the inductive members is two, and the two inductive members are respectively fixed to the first position and the second position of the power mechanism, so that the sensing member rotates through the position opposite to the two inductive members respectively.
  • the power mechanism includes a power unit and a rotating unit.
  • the power unit is coupled to the rotating unit to provide power to the rotating unit, and the rotating unit is coupled to the output shaft to drive the output shaft to rotate, and one of the sensing member and the driven member is fixed at the output. On the shaft, the other is fixed on the rotating unit.
  • the power unit is an asynchronous motor
  • the rotating unit is a speed reducer
  • the control device comprises a signal counter and a signal amplifier, wherein the signal amplifier is configured to receive and process the sensing component to sense the sensing signal emitted by the sensing component, and transmit the processed sensing signal to the signal counter, and the signal counter accumulates the sensing after receiving the processing.
  • the number of times of the signal is sent to the power unit with a predetermined control signal when the number of times the received sensed signal reaches the threshold.
  • the signal counter is a pulse counter.
  • the mechanical device is specifically used for the manufacture of a flat panel display device.
  • the beneficial effects of the present invention are: different from the prior art, the mechanical device of the present invention, one of the sensing member and the inductive member periodically moves with the periodic movement of the output mechanism, during the movement, during each induction
  • the control device receives the sensing component to sense the sensing signal emitted by the sensing component, and when the number of times the sensing signal is received reaches the threshold, the movement stroke of the output mechanism has reached the stroke corresponding to the threshold.
  • a control signal is sent to the power mechanism to control the power mechanism to stop the movement of the drive output mechanism, thereby achieving control of the power mechanism.
  • the invention installs both the sensing component and the sensing component on the power device, rather than outside the power device, so that the sensing component is not easily touched or damaged during the maintenance and maintenance of the device, and the working device cannot be operated normally. The chance of a small device failing, improving the reliability of the device.
  • FIG. 1 is a schematic structural view of a motion mechanism using an asynchronous motor as a power source in the prior art
  • FIG. 2 is a schematic structural view of an embodiment of a mechanical device of the present invention
  • Figure 3 is an enlarged schematic view of a broken line portion of the mechanical device of Figure 2.
  • the mechanical apparatus is used to produce a flat panel display apparatus including a control unit 21, a power unit 22, and a positioning unit 23 fixed to the power unit 22.
  • the power unit 22 includes an output shaft 221 as an output mechanism, and a power mechanism 222 that drives the output shaft 221 to perform periodic movement.
  • the power mechanism 222 further includes a power unit 223 and a rotation unit 224 that is coupled to the rotation unit 224 as a power source of the power unit 22 to power the rotation unit 224.
  • the output shaft 221 is mounted at the output end of the rotating unit 224, and the periodic motion of the output shaft 221 is circumferentially rotated.
  • the rotating unit 224 drives the output shaft 221 to rotate.
  • the positioning device 23 includes an inductive component 231 and two inductive components, and the two inductive components are a first inductive component 232 and a second inductive component 233, respectively.
  • the sensing member 231 is fixed to the rotating unit 224 of the power mechanism 222, and the two inductive members 232, 233 are fixed to the output rotating shaft 221 to periodically move with the periodic movement of the output rotating shaft 221.
  • the positioning device 23 further includes an inductive component mounting ring 234 and an inductive component mounting ring 235.
  • the inductive component mounting ring 234 is fixed on the rotating unit 224 and does not rotate with the output rotating shaft 221, but is fixed by the inductive component mounting ring 235.
  • the output shaft rotation 221 is rotated as the output shaft 221 is rotated.
  • the sensing member 231 is mounted on the sensing member mounting ring 234 to be fixed on the rotating unit 224 via the sensing member mounting ring 234.
  • the first sensing member 232 and the second sensing member 233 are respectively mounted on the sensing member mounting ring 235.
  • the first position and the second position are fixed to the output shaft 221 by the induction member mounting ring 235.
  • the first position and the second position are intermediate symmetrical positions of the sensing member mounting ring 235, that is, the boundary between the two ends of the half circumference of the sensing member mounting ring 235.
  • the driven member mounting ring 235 is rotated, and the first driven member 232 and the second driven member 233 are also moved.
  • the inductive member 231 senses the two inductive members 232 and 233, respectively.
  • the predetermined relative position is the position of the sensing member 231 and the sensing member 232, 233, respectively.
  • the sensing member 231 senses the first sensing member 232.
  • the sensing device 21 receives the sensing signal; when the second sensing member 233 is rotated to face the sensing member 231, the sensing member 231 senses the second sensing member 233 and sends an sensing signal, and the control device 21 Receiving the sensing signal.
  • the first inductive member 232 and the second inductive member 233 of the present embodiment are the same inductive member, and thus the inductive signals sent from the inductive member 231 to the control device 21 are the same inductive signals.
  • the control device 21 includes a signal counter 211 and a signal amplifier 212.
  • the signal counter 211 can be a pulse counter, and the sensing signal emitted by the sensing component 231 corresponds to a pulse signal.
  • the signal amplifier 212 is configured to receive the sensing signals sent by the sensing component 231 when the first sensing component 232 and the second sensing component 233 are respectively sensed, and perform corresponding processing on the sensing signal to transmit the processed sensing signal to the signal.
  • Counter 211 receives the sensing signal transmitted by the signal amplifier 212 while accumulating the number of times the sensing signal is received.
  • the signal counter 211 issues a predetermined control signal to the power unit 223 in the power mechanism 222 when the number of times the received sensing signal is accumulated reaches a set threshold to control the operating state of the power unit 223.
  • the movement of the transmission belt (not shown) is driven by the periodic motion of the output shaft 221, and the output shaft 221 is stopped to stop the transmission when the movement stroke of the belt reaches the specified movement stroke.
  • the movement avoids the movement of the belt beyond the specified movement stroke.
  • the movement stroke of the belt, and the number of rotations of the output shaft 221 can be known by the number of times the induction signal is emitted from the sensing member 231, that is, the output shaft 221 sends out the sensing signal 231 twice per minute. Therefore, in order to prevent the movement stroke of the belt from exceeding the specified movement stroke, the movement stroke of the belt is controlled by controlling the number of revolutions of the output shaft 221, when the number of times the signal received by the signal counter 211 reaches the set threshold It is explained that the movement stroke of the conveyor belt reaches the specified stroke, and at this time, a control command is issued to the power unit 223 to stop the power unit 223, thereby stopping the rotation of the output shaft 221 .
  • the specified stroke of the conveyor belt to be moved is 10.5 meters, and the stroke of the transmission shaft 221 is 1 meter for each rotation of the output shaft 221, so the output shaft 221 needs to be rotated 10.5 times to achieve the movement stroke of the conveyor belt.
  • the output shaft 211 sends a sensing signal twice per rotation of the sensing member 231.
  • the sensing member 231 should emit 21 times of the sensing signal, so the threshold of the signal counter 211 is set to 21 times in the initial design.
  • two inductive members 232 and 233 are used to sense with the inductive member 231, and the first inductive member 232 and the second inductive member 233 are in an intermediate symmetrical position of the inductive member mounting ring 235 so that the output is at the output.
  • the sensing member 231 can send the sensing signal once, without the output shaft 221 rotating a complete one turn to send the first sensing signal, in other words, through the two inductive members 232 and 233 respectively Inductively sensed by the sensing member 231, it is possible to know that the output shaft 221 is rotated by half a turn by reading the number of times of the sensing signal.
  • the sensing member 231 sends an inductive signal, and the signal counter
  • the 211 receives the sensing signal through the signal amplifier 212 while accumulating the number of receptions.
  • the number of times the signal counter 211 accumulates the received sensing signal is 21 times, it indicates that the output rotating shaft 221 is rotated by 10.5 turns.
  • the moving stroke of the output rotating shaft 221 driving the belt is corresponding to 10.5 meters, indicating that the moving stroke of the conveyor belt arrives.
  • the signal counter 211 sends a control signal to the power unit 223 to stop the power unit 223, so that the output shaft 221 stops rotating, and the belt stops moving accordingly, thereby realizing the control of the power unit 223.
  • the manner of controlling the operating state of the power unit 223 is also applicable to the reverse rotation of the output shaft 221 in the AB direction, which will not be described herein.
  • first inductive member 232 and the second inductive member 233 may be fixed at any two different positions of the inductive member mounting ring 235, and are not limited to the intermediate symmetric position of the above embodiment, for example, the first inductive position.
  • the distance between the member 232 and the second inductive member 233 in the direction of the AB is one-third of the circumference.
  • the output shaft 221 is rotated by one-third of a turn.
  • the specific settings can be made according to the specified stroke that the conveyor belt needs to move, and there is no restriction here.
  • the periodic motion of the output shaft 221 is not limited to the above-described circumferential rotation, and may be other motion modes such as vibration, etc., and is not particularly limited.
  • the power unit 223 of the present embodiment is an asynchronous motor, and the rotating unit 224 is a speed reducer.
  • the mechanical device of the present embodiment can realize the control of the power unit 223, thereby controlling whether the output shaft 221 is rotated or not.
  • the present embodiment mounts the positioning device 23 on the power unit 22, so that the maintenance of the device is performed. During maintenance and maintenance, it is not easy to cause damage to components in the positioning device 23 due to human factors, and the positioning device 23 is effectively protected, which can reduce the probability of equipment failure.
  • the two inductive members 232 and 233 are the same inductive member.
  • the two inductive members may also be different inductive members, so that the inductive members are respectively sensed.
  • different sensing signals are generated, for example, two different sensing components are used, so that the sensing component senses that the sensing signal sent by the sensing component is greater than the sensing signal sent by the sensing component to the other sensing component.
  • the control device issues a predetermined control signal to the rotating unit by accumulating the number of times of receiving different sensing signals, respectively.
  • the sensing component when the output shaft rotates in the forward direction, when the two inductive members respectively pass through the position of the sensing component, the sensing component respectively senses the two inductive components and generates different sensing signals, so that the control device receives only one of the sensing components. The signal, and the cumulative number of times the signal is received. When the number of times the control device accumulates the sensing signal reaches the set threshold value, it indicates that the output shaft drives the stroke of the belt movement to reach the specified stroke, and at this time, a control command for stopping the rotation of the output shaft is issued to the power unit.
  • the control device When the output shaft rotates in the reverse direction, the control device is caused to receive only another sensing signal and accumulate the number of times the sensing signal is received, so as to issue a control command to stop the rotation of the output shaft to the power unit when the number of times of reception reaches the threshold.
  • the present invention also provides a further embodiment of the mechanical device in which the sensing member of the positioning device is fixed to the output shaft for rotation with the rotation of the output shaft, and the sensing member is fixed to the power mechanism.
  • the number of the sensing members is also two, and the sensing device mounting ring of the positioning device is fixed on the power mechanism, and the two inductive members are respectively fixed to the first position and the second position of the sensing member mounting ring.
  • the inductive member is fixed to the power mechanism. When the sensing member rotates with the output shaft, the sensing member passes through the position opposite to the two inductive members, thereby respectively generating an inductive signal.
  • the control device receives the sensing signal emitted by the sensing component when the sensing component is sensed, and accumulates the number of times the sensing signal is received, and when the number reaches the threshold value, sends a control signal to the power mechanism to stop the rotation of the output shaft, and the specific implementation principle and FIG. 2
  • the embodiments shown are similar and will not be described here.
  • the position setting of the first inductive member and the second inductive member may be set in the middle symmetric position of the inductive member mounting ring, or may be set in other positions, specifically according to the specified movement stroke of the conveyor belt. Make settings.
  • the sensing signal from the sensing component can be sent to the control device by wireless transmission to avoid the connection line in the wired transmission mode.
  • the present embodiment can also achieve the control function of the power mechanism, and the positioning device is mounted on the power device, which can effectively protect the positioning device from being damaged, thereby reducing the probability of equipment failure.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

一种机械设备，包括控制装置（21）、动力装置（22）和定位装置（23）。将定位装置（23）中的感应件（231）和被感应件（232，233）安装在动力装置（22）中，并且其中一个安装在动力装置（22）的输出机构（221）上以随着输出机构（221）的周期运动而周期运动，在每次感应件（231）和被感应件（232，233）之间处于预定相对位置时，控制装置（21）接收感应件（231）感应被感应件（232，233）所发出的感应信号，并在接收的次数到达阈值时向动力装置（22）中的动力机构（222）发出预定控制信号。通过上述方式，能够在实现对机械设备的工作状态进行控制的同时减小设备产生故障的几率。

Description

一种机械设备
【技术领域】
本发明涉及机械领域，特别是涉及一种机械设备。
【背景技术】
电动机是将电能转换为机械能的设备，在各种电动机中应用最为广泛的主要是异步电动机，其具有使用方便、运行可靠、价格低廉以及结构牢靠等优点，因此异步电动机在工农业生产、交通运输、国防以及商业等各方面都广泛应用。
在以异步电动机为动力源的运动机构中，如图1所示，该运动机构的动力系统主要由异步电动机11和减速机12构成，异步电动机11对减速机12提供动力，以使得减速机12带动传输带13运动。在这运动过程中，当到达指定的运动行程后，通常需要控制异步电动机11停止工作，以停止传输带13的运动。其控制原理主要是在传输带13的运动行程的初始位置14和终点位置15分别安装一个感应器16，被感应物17则安装在传输带13上以随着传输带13的运动而运动，并且对应位于运动行程的初始位置14和终点位置15之间。当被感应物17随传输带13运动而到达其中一个感应器16时，感应器16感应到被感应物17，进而向控制装置18发出感应信号，从而停止传输带13的运动，使传输带13的实际运动行程不至于超出规定的运动行程。
通过上述方式能够实现对异步电动机11的控制，但是初始位置14和终点位置15的感应器16作为必不可少的重要元件，其安装在动力系统的外部，当在进行设备维护和保养时，由于人为的原因容易不小心触碰到感应器16或损坏感应器16，使得感应器16无法正常工作，容易造成设备的故障。
【发明内容】
本发明主要解决的技术问题是提供一种机械设备，能够减小设备的发生故障的几率，提高设备使用的可靠性。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种机械设备，包括：控制装置、动力装置以及固定在动力装置上的定位装置；动力装置包括输出机构和驱动输出机构作周期运动的动力机构，动力机构包括动力单元和转动单元，动力单元与转动单元连接以对转动单元提供动力，转动单元与输出机构连接以驱动输出机构作周期运动，定位装置包括感应件和至少一个被感应件，感应件和被感应件中的其中一个固定在转动单元上，另一个固定在输出机构上以随着输出机构的周期运动而周期运动；其中，控制装置包括信号计数器和信号放大器，在每次感应件与被感应件之间处于预定相对位置时，信号放大器用于接收并处理感应件感应被感应件所发出的感应信号，并将处理后的感应信号传送至信号计数器，信号计数器累计接收处理后的感应信号的次数，在接收处理后的感应信号的次数到达阈值时向动力机构发出预定控制信号。
其中，输出机构是输出转轴，感应件固定在动力机构上，被感应件固定在输出转轴上以随着输出转轴的转动而转动，在被感应件每次转动至与感应件正对的位置时，控制装置接收感应件感应被感应件所发出的感应信号，并且在接收感应信号的次数到达阈值时向动力机构发出停止输出转轴转动的控制信号。
其中，定位装置包括被感应件安装环，被感应件安装环固定在输出转轴上以随着输出转轴的转动而转动，被感应件的数量为两个，两个被感应件分别固定在被感应件安装环的第一位置、第二位置以在被感应件安装环转动时分别经过至与感应件正对的位置。
其中，输出机构是输出转轴，被感应件固定在动力机构上，感应件固定在输出转轴上以随着输出转轴的转动而转动，在感应件每次转动至与被感应件正对的位置时，控制装置接收感应件感应被感应件所发出的感应信号，并且在接收感应信号的次数到达阈值时向动力机构发出停止输出转轴转动的控制信号。
其中，被感应件的数量为两个，两个被感应件分别固定在动力机构的第一位置、第二位置以使得感应件转动时分别经过与两个被感应件正对的位置。
其中，动力单元为异步电动机，转动单元为减速机。
其中，信号计数器为脉冲计数器。
其中，机械设备具体用于平板显示装置的制造。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种机械设备，包括控制装置、动力装置以及固定在动力装置上的定位装置；动力装置包括输出机构和驱动输出机构作周期运动的动力机构，定位装置包括感应件和至少一个被感应件，感应件和被感应件中的其中一个固定在动力机构上，另一个固定在输出机构上以随着输出机构的周期运动而周期运动；其中，在每次感应件与被感应件之间处于预定相对位置时，控制装置接收感应件感应被感应件所发出的感应信号，并且在接收感应信号的次数到达阈值时向动力机构发出预定控制信号。
其中，输出机构是输出转轴，感应件固定在动力机构上，被感应件固定在输出转轴上以随着输出转轴的转动而转动，在被感应件每次转动至与感应件正对的位置时，控制装置接收感应件感应被感应件所发出的感应信号，并且在接收感应信号的次数到达阈值时向动力机构发出停止输出转轴转动的控制信号。
其中，定位装置包括被感应件安装环，被感应件安装环固定在输出转轴上以随着输出转轴的转动而转动，被感应件的数量为两个，两个被感应件分别固定在被感应件安装环的第一位置、第二位置以在被感应件安装环转动时分别经过至与感应件正对的位置。
其中，输出机构是输出转轴，被感应件固定在动力机构上，感应件固定在输出转轴上以随着输出转轴的转动而转动，在感应件每次转动至与被感应件正对的位置时，控制装置接收感应件感应被感应件所发出的感应信号，并且在接收感应信号的次数到达阈值时向动力机构发出停止输出转轴转动的控制信号。
其中，被感应件的数量为两个，两个被感应件分别固定在动力机构的第一位置、第二位置以使得感应件转动时分别经过与两个被感应件正对的位置。
其中，动力机构包括动力单元和转动单元，动力单元与转动单元连接以对转动单元提供动力，转动单元与输出转轴连接以驱动输出转轴转动，在感应件和被感应件中当其中一个固定在输出轴上时，另一个固定在转动单元上。
其中，动力单元为异步电动机，转动单元为减速机。
其中，控制装置包括信号计数器和信号放大器，信号放大器用于接收并处理感应件感应被感应件所发出的感应信号，并将处理后的感应信号传送至信号计数器，信号计数器累计接收处理后的感应信号的次数，在接收处理后的感应信号的次数到达阈值时向动力机构发出预定控制信号。
其中，信号计数器为脉冲计数器。
其中，机械设备具体用于平板显示装置的制造。
本发明的有益效果是：区别于现有技术的情况，本发明的机械设备，感应件和被感应件中的其中一个随着输出机构的周期运动而周期运动，运动过程中，在每次感应件和被感应件处于相对位置时，控制装置接收感应件感应被感应件所发出的感应信号，在接收感应信号的次数到达阈值时说明输出机构的运动行程已经达到了该阈值所对应的行程，此时向动力机构发出控制信号以控制动力机构停止驱动输出机构运动，由此实现对动力机构的控制。同时，本发明将感应件和被感应件均安装在动力装置上，而不是在动力装置之外，使得在进行设备维护和保养时感应件不易被触碰或损坏而导致无法正常工作，能够减小设备发生故障的几率，提高设备的可靠性。
【附图说明】
图1是现有技术中一种以异步电动机为动力源的运动机构的结构示意图；
图2是本发明机械设备的一实施方式的结构示意图；
图3是图2的机械设备虚线部分的放大示意图。
【具体实施方式】
下面将结合附图和实施方式对本发明进行详细说明。
参阅图2和图3，本发明机械设备的一实施方式中，机械设备用于进行平板显示设备的生产，其包括控制装置21、动力装置22以及固定在动力装置22上的定位装置23。
其中，动力装置22包括作为输出机构的输出转轴221，以及驱动输出转轴221作周期运动的动力机构222。具体地，动力机构222进一步包括动力单元223和转动单元224，动力单元223作为动力装置22的动力源与转动单元224连接以对转动单元224提供动力。输出转轴221安装在转动单元224的输出端，输出转轴221的周期运动为圆周转动，在动力单元223为转动单元224提供动力时转动单元224驱动输出转轴221转动。
本实施方式中，定位装置23包括一个感应件231以及两个被感应件，两个被感应件分别为第一被感应件232和第二被感应件233。感应件231固定在动力机构222的转动单元224上，两个被感应件232、233固定在输出转轴221上以随着输出转轴221的周期运动而周期运动。具体地，定位装置23进一步还包括感应件安装环234和被感应件安装环235，感应件安装环234固定在转动单元224上不随着输出转轴221而转动，而被感应件安装环235固定在输出轴转221上随着输出转轴221的转动而转动。其中，感应件231安装在感应件安装环234上以通过感应件安装环234固定在转动单元224上，第一被感应件232和第二被感应件233分别安装在被感应件安装环235的第一位置和第二位置以通过被感应件安装环235固定在输出转轴221上。第一位置和第二位置为被感应件安装环235的中间对称位置，即被感应件安装环235的半圆周两端的分界处。
输出转轴221做周期运动时，带动被感应件安装环235转动，而第一被感应件232和第二被感应件233也随之运动。当每次第一被感应件232和第二被感应件233分别与感应件231之间处于预定相对位置时，感应件231分别感应到两个被感应件232和233。其中预定相对位置为感应件231分别和被感应件232、233的正对位置，在第一被感应件232转动至与感应件231正对位置时，感应件231感应到第一被感应件232并发出感应信号，控制装置21接收该感应信号；在第二被感应件233转动至与感应件231正对位置时，感应件231感应到第二被感应件233并发出感应信号，控制装置21接收该感应信号。本实施方式的第一被感应件232和第二被感应件233为相同的被感应件，因此感应件231向控制装置21发出的感应信号为相同的感应信号。
控制装置21包括信号计数器211和信号放大器212，信号计数器211可以是脉冲计数器，感应件231所发出的感应信号对应为脉冲信号。其中信号放大器212用于接收感应件231分别感应到第一被感应件232和第二被感应件233时所发出的感应信号，并对感应信号进行相应处理后将处理后的感应信号传送至信号计数器211。信号计数器211接收由信号放大器212传送过来的感应信号，同时累计接收感应信号的次数。信号计数器211在累计接收感应信号的次数到达设定的阈值时向动力机构222中的动力单元223发出预定控制信号，以控制动力单元223的工作状态。
可以理解为，在实际使用中，通过输出转轴221的周期运动来带动传输带（图未示）的运动，在传输带的运动行程到达指定的运动行程时控制输出转轴221停止转动以停止传输带的运动，避免传输带的运动行程超出规定的运动行程。输出转轴221转动的圈数、感应件231发出的感应信号的次数以及传输带的运动行程三者之间具有一定的对应关系，在输出转轴221转动过程中，输出转轴221转动的圈数决定传输带的运动行程，而输出转轴221转动的圈数可通过感应件231发出的感应信号的次数获知，即输出转轴221每转动一圈感应件231发出2次感应信号。因此，为了使传输带的运动行程不超出指定的运动行程，通过控制输出转轴221的转动圈数来控制传输带的运动行程，当信号计数器211接收到的感应信号的次数到达设定的阈值时，说明传输带的运动行程到达指定的行程，此时向动力单元223发出控制命令以使动力单元223停止工作，进而停止输出转轴221的转动。
举例而言，传输带需要运动的指定行程为10.5米，而输出转轴221每转动一圈带动传输带运动的行程对应为1米，因此输出转轴221需转动10.5圈才能使传输带的运动行程达到指定行程。输出转轴211每转动一圈感应件231发出2次感应信号，对于输出转轴转动10.5圈，感应件231应发出21次感应信号，因此在初始设计时将信号计数器211的阈值设定为21次。本实施方式中，使用两个被感应件232和233与感应件231进行感应，并且第一被感应件232和第二被感应件233处于被感应件安装环235的中间对称位置，使得在输出转轴221转动半圈时感应件231能发出1次感应信号，而不需要输出转轴221转动完整的一圈才能发出1次感应信号，换句话而言，通过两个被感应件232和233分别与感应件231感应，能够通过读取感应信号的次数获知输出转轴221转动半圈的情况。在输出转轴221沿AB方向转动以带动传输带运动时，第一被感应件232和第二被感应件233分别转动至与感应件231正对的位置时，感应件231发出感应信号，信号计数器211通过信号放大器212接收感应信号，同时累计接收的次数。当信号计数器211累计接收到的感应信号的次数为21次时，说明输出转轴221转动了10.5圈，此时输出转轴221带动传输带运动的运动行程对应为10.5米，说明传输带的运动行程到达了指定行程，此时信号计数器211向动力单元223发出控制信号以使动力单元223停止工作，进而使得输出转轴221停止转动，传输带也随之而停止运动，由此实现对动力单元223的控制。上述控制动力单元223的工作状态的方式同样适用于输出转轴221沿AB方向的反向转动情况，此处不进行赘述。
当然，对于第一被感应件232和第二被感应件233也可以固定在被感应件安装环235的任意两个不同位置，而不仅限于上述实施方式的中间对称位置，例如使第一被感应件232和第二被感应件233之间沿AB方向的距离为三分之一的圆周，此时通过读取感应信号的次数能够获知输出转轴221转动三分之一圈的情况。具体的设置可根据传输带需要运动的指定行程进行，此处不进行限制。此外，输出转轴221的周期运动也不限于上述的圆周转动，还可以是其他的运动方式，如振动等，对此不进行具体限制。
本实施方式的动力单元223为异步电动机，转动单元224为减速机。
通过上述方式，本实施方式的机械设备能够实现对动力单元223的控制，进而控制输出转轴221转动与否，同时，本实施方式将定位装置23安装在动力装置22上，使得在进行设备的维修和保养时不易因为人为原因而对定位装置23中的元件造成破坏，有效保护了定位装置23，能够减小设备出现故障的几率。
在上述实施方式中，两个被感应件232和233为相同的被感应件，在另一个实施方式中，两个被感应件也可以是不相同的被感应件，以使得感应件分别感应到被感应件时产生不同的感应信号，例如使用两个不同的被感应件，使感应件感应到一个被感应件所发出的感应信号大于感应件感应到另一被感应件所发出的感应信号，以区别不同的感应信号。在此实施方式中，对于输出转轴正向转动和反向转动的情况，控制装置分别通过累计接收不同的感应信号的次数以向转动单元发出预定的控制信号。具体地，在输出转轴正向转动时，两个被感应件分别经过感应件的位置时，感应件分别感应两个被感应件并产生不同的感应信号，而使控制装置只接收其中一种感应信号，并累计接收该感应信号的次数。当控制装置累计接收该感应信号的次数到达设定的阈值时，说明输出转轴带动传输带运动的行程到达指定的行程，此时向动力单元发出停止输出转轴转动的控制命令。在输出转轴反向转动时，使控制装置只接收另一种感应信号，并累计接收该感应信号的次数，以在接收的次数到达阈值时向动力单元发出停止输出转轴转动的控制命令。
本发明还提供机械设备的又一实施方式，在该实施方式中，定位装置的感应件固定在输出转轴上以随着输出转轴的转动而转动，而被感应件则固定在动力机构上。具体为，被感应件的数量也为两个，定位装置的被感应件安装环固定在动力机构上，将两个被感应件分别固定在被感应件安装环的第一位置和第二位置以使得被感应件固定在动力机构上。在感应件随着输出转轴的转动时感应件先后经过与两个被感应件正对的位置，由此分别产生感应信号。控制装置接收感应件感应到被感应件时所发出的感应信号，并累计接收感应信号的次数，在该次数到达阈值时向动力机构发出停止输出转轴转动的控制信号，具体的实现原理与图2所示的实施方式相类似，此处不进行一一赘述。对于第一被感应件和第二被感应件的位置设定，可以设定在被感应件安装环的中间对称位置，也可以设定在其他的位置，具体的可根据传输带的指定运动行程进行设定。其中，感应件发出的感应信号可通过无线传输的方式发送至控制装置，以避免有线传输模式下的连接线会随之转动。
通过上述方式，本实施方式也可以实现对动力机构的控制作用，并且定位装置安装在动力装置上，能够有效保护定位装置不易遭受破坏，进而减小设备产生故障的几率。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (18)

  1. 一种机械设备，其中，包括：控制装置、动力装置以及固定在所述动力装置上的定位装置；
    所述动力装置包括输出机构和驱动所述输出机构作周期运动的动力机构，所述动力机构包括动力单元和转动单元，所述动力单元与转动单元连接以对所述转动单元提供动力，所述转动单元与输出机构连接以驱动输出机构作周期运动，所述定位装置包括感应件和至少一个被感应件，所述感应件和被感应件中的其中一个固定在所述转动单元上，另一个固定在所述输出机构上以随着所述输出机构的周期运动而周期运动；
    其中，所述控制装置包括信号计数器和信号放大器，在每次所述感应件与被感应件之间处于预定相对位置时，所述信号放大器用于接收并处理所述感应件感应被感应件所发出的感应信号，并将处理后的感应信号传送至信号计数器，所述信号计数器累计接收所述处理后的感应信号的次数，在接收所述处理后的感应信号的次数到达阈值时向所述动力机构发出预定控制信号。
  2. 根据权利要求1所述的设备，其中，
    所述输出机构是输出转轴，所述感应件固定在所述动力机构上，所述被感应件固定在所述输出转轴上以随着所述输出转轴的转动而转动，在所述被感应件每次转动至与感应件正对的位置时，所述控制装置接收所述感应件感应被感应件所发出的感应信号，并且在接收所述感应信号的次数到达阈值时向所述动力机构发出停止输出转轴转动的控制信号。
  3. 根据权利要求2所述的设备，其中，
    所述定位装置包括被感应件安装环，所述被感应件安装环固定在所述输出转轴上以随着所述输出转轴的转动而转动，所述被感应件的数量为两个，两个所述被感应件分别固定在所述被感应件安装环的第一位置、第二位置以在所述被感应件安装环转动时分别经过至与感应件正对的位置。
  4. 根据权利要求1所述的设备，其中，
    所述输出机构是输出转轴，所述被感应件固定在所述动力机构上，所述感应件固定在所述输出转轴上以随着所述输出转轴的转动而转动，在所述感应件每次转动至与被感应件正对的位置时，所述控制装置接收所述感应件感应被感应件所发出的感应信号，并且在接收所述感应信号的次数到达阈值时向所述动力机构发出停止输出转轴转动的控制信号。
  5. 根据权利要求4所述的设备，其中，
    所述被感应件的数量为两个，两个所述被感应件分别固定在所述动力机构的第一位置、第二位置以使得所述感应件转动时分别经过与两个被感应件正对的位置。
  6. 根据权利要求1所述的设备，其中，
    所述动力单元为异步电动机，所述转动单元为减速机。
  7. 根据权利要求1所述的设备，其中，
    所述信号计数器为脉冲计数器。
  8. 根据权利要求1所述的设备，其中，
    所述机械设备具体用于平板显示装置的制造。
  9. 一种机械设备，其中，包括：控制装置、动力装置以及固定在所述动力装置上的定位装置；
    所述动力装置包括输出机构和驱动所述输出机构作周期运动的动力机构，所述定位装置包括感应件和至少一个被感应件，所述感应件和被感应件中的其中一个固定在所述动力机构上，另一个固定在所述输出机构上以随着所述输出机构的周期运动而周期运动；
    其中，在每次所述感应件与被感应件之间处于预定相对位置时，所述控制装置接收所述感应件感应被感应件所发出的感应信号，并且在接收所述感应信号的次数到达阈值时向所述动力机构发出预定控制信号。
  10. 根据权利要求9所述的设备，其中，
    所述输出机构是输出转轴，所述感应件固定在所述动力机构上，所述被感应件固定在所述输出转轴上以随着所述输出转轴的转动而转动，在所述被感应件每次转动至与感应件正对的位置时，所述控制装置接收所述感应件感应被感应件所发出的感应信号，并且在接收所述感应信号的次数到达阈值时向所述动力机构发出停止输出转轴转动的控制信号。
  11. 根据权利要求10所述的设备，其中，
    所述定位装置包括被感应件安装环，所述被感应件安装环固定在所述输出转轴上以随着所述输出转轴的转动而转动，所述被感应件的数量为两个，两个所述被感应件分别固定在所述被感应件安装环的第一位置、第二位置以在所述被感应件安装环转动时分别经过至与感应件正对的位置。
  12. 根据权利要求9所述的设备，其中，
    所述输出机构是输出转轴，所述被感应件固定在所述动力机构上，所述感应件固定在所述输出转轴上以随着所述输出转轴的转动而转动，在所述感应件每次转动至与被感应件正对的位置时，所述控制装置接收所述感应件感应被感应件所发出的感应信号，并且在接收所述感应信号的次数到达阈值时向所述动力机构发出停止输出转轴转动的控制信号。
  13. 根据权利要求12所述的设备，其中，
    所述被感应件的数量为两个，两个所述被感应件分别固定在所述动力机构的第一位置、第二位置以使得所述感应件转动时分别经过与两个被感应件正对的位置。
  14. 根据权利要求9所述的设备，其中，
    所述动力机构包括动力单元和转动单元，所述动力单元与转动单元连接以对所述转动单元提供动力，所述转动单元与输出转轴连接以驱动输出转轴转动，在所述感应件和被感应件中当其中一个固定在所述输出轴上时，另一个固定在所述转动单元上。
  15. 根据权利要求14所述的设备，其中，
    所述动力单元为异步电动机，所述转动单元为减速机。
  16. 根据权利要求9所述的设备，其中，
    所述控制装置包括信号计数器和信号放大器，所述信号放大器用于接收并处理所述感应件感应被感应件所发出的感应信号，并将处理后的感应信号传送至信号计数器，所述信号计数器累计接收所述处理后的感应信号的次数，在接收所述处理后的感应信号的次数到达阈值时向所述动力机构发出预定控制信号。
  17. 根据权利要求16所述的设备，其中，
    所述信号计数器为脉冲计数器。
  18. 根据权利要求9所述的设备，其中，
    所述机械设备具体用于平板显示装置的制造。
PCT/CN2012/085133 2012-11-21 2012-11-23 一种机械设备 WO2014079035A1 (zh)

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