WO2017124579A1 - 螺旋驱动控制系统 - Google Patents

螺旋驱动控制系统 Download PDF

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Publication number
WO2017124579A1
WO2017124579A1 PCT/CN2016/072481 CN2016072481W WO2017124579A1 WO 2017124579 A1 WO2017124579 A1 WO 2017124579A1 CN 2016072481 W CN2016072481 W CN 2016072481W WO 2017124579 A1 WO2017124579 A1 WO 2017124579A1
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WO
WIPO (PCT)
Prior art keywords
nut
screw
control system
drive control
lock block
Prior art date
Application number
PCT/CN2016/072481
Other languages
English (en)
French (fr)
Inventor
史翔
葛汉青
贡智兵
戴祖信
徐松南
Original Assignee
南京康尼机电股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南京康尼机电股份有限公司 filed Critical 南京康尼机电股份有限公司
Priority to EP16885852.0A priority Critical patent/EP3404174B1/en
Priority to KR1020187024144A priority patent/KR102058734B1/ko
Priority to US16/071,627 priority patent/US11214981B2/en
Priority to ES16885852T priority patent/ES2897008T3/es
Priority to JP2018557166A priority patent/JP6676190B2/ja
Publication of WO2017124579A1 publication Critical patent/WO2017124579A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
    • E05F15/652—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by screw-and-nut mechanisms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/06—Electrical using rotary motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/32—Details of the actuator transmission
    • E05B81/40—Nuts or nut-like elements moving along a driven threaded axle
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/36—Locks for passenger or like doors
    • E05B83/40—Locks for passenger or like doors for sliding doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0472—Made of rubber, plastics or the like
    • E05B2015/0479—Made of rubber, plastics or the like of elastic string type
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B2047/0014—Constructional features of actuators or power transmissions therefor
    • E05B2047/0018—Details of actuator transmissions
    • E05B2047/0023—Nuts or nut-like elements moving along a driven threaded axle
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/54—Man-operated mechanisms for operating wings, including those which also operate the fastening for doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/218—Holders
    • E05Y2201/22—Locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/644—Flexible elongated pulling elements
    • E05Y2201/654—Cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/658—Members cooperating with flexible elongated pulling elements
    • E05Y2201/66—Deflectors; Guides
    • E05Y2201/662—Cable sheaths
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/676—Transmission of human force
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/51—Application of doors, windows, wings or fittings thereof for vehicles for railway cars or mass transit vehicles

Definitions

  • the invention relates to the field of automatic control systems, in particular to a spiral drive control system.
  • the screw drive control system generally a motor drive screw, drives the nut assembly disposed on the screw to reciprocate, thereby driving the controlled object connected to the nut assembly.
  • the screw drive control system is mostly applied to the field of track doors and electric doors, and it also has a locking and unlocking function.
  • the spiral drive control system which is usually applied to the above-mentioned fields, locks the nut assembly by the electromagnetic lock, thereby realizing the function of locking the door.
  • the electromagnetic lock In this form of screw drive control system, the electromagnetic lock must be energized at any time to ensure the stability of the lock door. If the electromagnetic lock is de-energized, there is a risk of the door being automatically opened, and in the prior art, the structure is locked by the mechanical lock. Most of them have complex structural problems. As a system mainly composed of mechanical structures, complex structures will bring problems such as poor reliability, self-importance, and difficulty in control, especially when applied to public transportation, which will threaten the personal safety of passengers.
  • the present invention provides a screw drive control system for solving the problem that the door in the prior art, the door system using the electromagnetic lock, is automatically opened after the power failure, and the structure of the door system to which the mechanical lock is applied Complex, self-important, difficult to control and other issues.
  • a screw drive control system of the present invention includes a drive mechanism fixed to a beam, a guide lock block, and a limit mechanism;
  • the drive mechanism includes a screw and a nut assembly driven by a motor
  • the nut assembly includes a transmission frame, a nut sleeved on the screw rod, and a follower member fixed on the nut;
  • the nut is installed in the transmission frame, and the transmission frame is connected to the controlled object;
  • the screw drive nut assembly is along the screw shaft Reciprocating motion; during the forward rotation of the screw rod, when the follower member contacts the guide lock block, it moves to the limit mechanism under the guidance of the upper surface of the guide lock block and is blocked by the limit mechanism, and the follower member follows the wire
  • the rod is rotated into the space between the side of the guiding block and the limiting mechanism to be locked; when the screw is rotated in the reverse direction, the follower member is unlocked when the screw is reversely rotated to the limit of disengaging the guiding block,
  • the transmission frame has a mechanism for defining a range of angles of rotation of the nut with the screw rod, thereby restricting a large angle of rotation of the follower member due to vibration when the nut moves.
  • the transmission frame has a mounting portion connected to the controlled object, and the mounting portion extends upward to form a nut mounting portion composed of four uprights, and the nut is installed in a space formed by the four columns, and the side facing the beam in the side thereof The top ends of the two columns are fitted with limit pins that define the range of rotation of the nut with the screw.
  • the outer diameter of the nut is greater than the distance between the two columns, so that the nut is confined in the space between the two columns, and when the nut moves along the axial direction of the screw, the thrust is applied to the column on the different side.
  • Drive the drive frame Move with the nut.
  • the nut is composed of an inner ring and an outer ring, the inner ring is screwed with the screw rod, the outer ring sleeve is sleeved on the inner ring and cooperates with the anti-slip teeth, and the outer ring faces the side of the beam and extends outward with the installation of the follower component seat.
  • the mounting seat has a screw hole
  • the follower member has a screw
  • the screw is screwed into the screw hole to fix the connecting member and the nut.
  • the follower component is a roller, and the roller is matched with the guide lock block to minimize the running resistance of the nut assembly and improve the stability of the system when passing through the surface of the guide lock block.
  • the two sides of the outer ring of the nut are respectively located between the corresponding adjacent columns, and the screw rod drives the transmission frame to move along the axial direction of the screw rod through the outer ring of the nut.
  • the nut assembly further includes an elastic member that applies a torsional force to the nut.
  • the elastic member is a torsion spring, and one end of the torsion spring rests on the transmission frame, and the other end abuts on the nut.
  • the torsion spring adopts a model with an inner diameter larger than the diameter of the screw rod and is sleeved outside the screw rod.
  • the outer ring of the nut extends outwardly with a stopper, and one end of the torsion spring abuts against the stopper.
  • the guide lock block has a smooth upper surface that guides the follower member to move toward the limiting mechanism.
  • the guide lock block has a side surface facing the limiting mechanism, and the side surface and the limiting mechanism form a space capable of falling into the follower member.
  • the side surface is a slope that can restrict the ejection of the follower member.
  • the angle between the side surface and the vertical surface is 0-10°, and within the angle range, the guiding lock block can apply force to the follower component without causing excessive angle
  • the problem that the moving member is locked is preferably 3°.
  • a slide rail for moving the follower member is provided, the slide rail is in contact with the guide lock block and smoothly transitions with the upper surface of the guide lock block.
  • the slide rail is arranged to move the follower member under the restriction of the slide rail, which can further increase the smoothness of the movement of the nut assembly.
  • the limiting mechanism includes a limiting plate mounted on the beam, the limiting plate having a side facing the guiding block, the side and the side of the guiding block forming a space capable of falling into the follower member.
  • the limiting plate is rotatably mounted on the beam by a pin, the limiting plate has a bent vertical plate facing the guiding block; and a return spring is arranged between the limiting plate and the pin.
  • the limiting plate can trigger a signal switch during a rotating motion
  • the limiting plate is provided with a waist hole, a limited position pin is mounted on the beam, and the limiting pin extends into the waist hole to limit the rotation angle of the limiting plate.
  • the limiting mechanism includes a manual mechanism including a fixing bracket mounted on the beam and a movable bracket mounted on the pin, and a return spring is installed between the brackets, and the movable bracket is The follower member can be pulled out from the space between the guide lock block and the limit mechanism during the rotation.
  • the movable bracket and the limiting plate are mounted on the same pin shaft, and the two do not interfere with each other, and the integration degree is high, which can save installation space.
  • the utility model has the advantages that the combination of the nut assembly, the guiding lock block and the limiting mechanism of the invention solves the problem that the prior art electromagnetic lock automatically opens when the electromagnetic lock fails, which brings about a safety risk problem.
  • Some mechanical lock structures are simpler and more reliable, and the nut assembly is simpler in structure and smoother in operation than the prior art in the form of matching with the chute, and is easy to process and self-weight due to the small number of components constituting the whole. Small, no need for excessive installation space.
  • Figure 1 is a schematic view of the overall structure of the present invention
  • Figure 2 is a partial schematic view of Figure 1, wherein the guide lock block is a first embodiment
  • Figure 3 is a partial schematic view of Figure 1, wherein the guide lock block is a second way of mating with the slide rail;
  • Figure 4 is a schematic structural view of the nut assembly of the A-A direction of Figure 1;
  • Figure 5 is a schematic view showing the combined structure of the nut assembly and the transmission frame
  • Figure 6 is a schematic view of the structure of the transmission frame
  • Figure 7 is a schematic view showing the structure of the nut
  • Figure 8 is a schematic view showing the state of cooperation of the guiding lock block, the limiting mechanism and the follower member
  • Figure 9 is a schematic view showing the structure of a manual mechanism.
  • a spiral drive control system as shown in FIG. 1 to FIG. 9 includes a motor 1, a guide lock block 51 and a limit mechanism 4 fixed to the beam 11, the motor 1 being connected to the controller; and the shaft connection of the motor 1
  • the screw rod 2 is provided with a nut assembly 3 on the screw rod 2;
  • the nut assembly 3 includes a nut 31 and a follower member 7 rigidly connected with the nut 31, and the nut 31 and the screw rod 2 constitute a spiral motion pair, and are installed outside the nut 31
  • a torsion spring 10 is disposed between the transmission frame 9 and the nut 31, and the torsion spring 10 applies pressure to the follower member 7 with the transmission frame 9 as a support, and the transmission frame 9 is connected to the controlled object 6, in a specific application, the controlled object 6 may be an electric plug or sliding door of a subway in the field of rail transit, or an electric door in other fields; during the forward rotation of the screw
  • the follower member 7 moves to the limit mechanism 4 under the guidance of the upper surface of the guide lock block 51 and is limited by the limit.
  • the mechanism 4 blocks, and the follower member 7 rotates with the screw rod 2 into the guide lock block 5
  • the side of the 1 is locked with the space between the limiting mechanism 4; when the screw 2 is rotated in the reverse direction, the follower member 7 is unlocked as the screw 2 is reversely rotated to the limit of disengaging the guiding block 51, and then the wire is removed.
  • the rod 2 moves axially.
  • the guide lock block 51 has a side facing the limiting mechanism 4, the side A space that can fall into the follower member 7 is formed between the face and the stopper mechanism 4.
  • the side surface is a slope capable of restricting the ejection of the follower member 7, and the angle between the side surface and the vertical surface is 0-10°.
  • the guide lock block 51 can apply force to the follower member 7, and There is no problem that the follower member 7 is locked due to an excessive angle, and the angle is preferably 3°.
  • the transmission frame 9 there is also a mechanism for defining a range of angles of rotation of the nut 31 with the screw rod 2.
  • the mechanism is a space, and the follower member 7 on the nut 31 moves up and down with the nut 31 in the space, and the upper end of the space is The lower end defines the range of rotation of the follower member 7, thereby defining the range of rotation of the nut 31 as it moves with the screw 2.
  • the guide lock block 51 has a smooth upper surface for guiding the follower member 7 to move toward the limiting mechanism 4, and during the movement of the follower member 7, when it is not guided
  • the torsion spring 10 disposed between the nut 31 and the carrier 9 can be set to be in a relaxed state or small. In the compressed state, no twisting force is applied to the nut 31, or a small torsional force is applied to the nut 31, so that the nut 31 can be made more stable in driving the follower member 7.
  • the torsion spring 10 When the follower member 7 passes the upper surface of the guide lock block 51, the torsion spring 10 is compressed to apply a torsion force to the nut 31, thereby ensuring that the follower member 7 can be rotated by the screw rod 2 after coming into contact with the limit plate 13.
  • the torsion force applied by the nut 31 and the torsion spring 10 can smoothly enter the space between the limiting plate 13 and the guide lock block 51.
  • a slide rail 5 for moving the follower member 7 is fixedly mounted on the beam 11, and the slide rail 5 is connected to the guide lock block 51 and to the guide lock block 51.
  • the surface is smoothly transitioned.
  • the guide lock block 51 is disposed at one end of the slide rail 5 near the limiting member and has a horizontal upper surface that is in contact with the upper surface of the slide rail 5 to form an integral horizontal surface.
  • the follower member 7 is in contact with the upper surface of the slide rail 5 and is reciprocable on the upper surface.
  • the follower member 7 is located in the space defining the rotation of the follower member 7.
  • the torsion spring 10 between the nut 31 and the transmission frame 9 is in a compressed state, and when the follower member 7 is moved into contact with the limiting plate 13, the screw 2 rotates.
  • the force that causes the nut 31 to rotate and the torsional force applied by the torsion spring 10 to the nut 31 ensure that the follower member 7 can smoothly enter the space between the limiting plate 13 and the guide lock block 51.
  • Providing the slide rail 5 to move the follower member 7 under the restriction of the slide rail 5 can further increase the smoothness of the movement of the nut assembly 3.
  • the transmission frame 9 has a mounting portion 91 connected to the controlled object 6.
  • the mounting portion 91 extends upward to form a nut mounting portion composed of four uprights 92, and the nut 31 is mounted on the four columns 92.
  • the top end of the two uprights 92 facing the side of the beam 11 is mounted with a limit pin 12 defining a range of angles of rotation of the nut 31 with the screw rod 2. Therefore, the limit pin 12 and the two columns 92 on the side of the beam 11 are disposed.
  • the rotation space of the nut 31 as the screw rod 2 rotates is formed between the bottom portions, and the limit pin 12 is the above-mentioned upper end, and the bottom of the space between the two uprights 92 is the lower end.
  • the outer diameter of the nut 31 is greater than the distance between the two side pillars 92, so that the nut 31 is confined in the space between the two side uprights 92, and when the nut 31 moves axially along the screw shaft 2, passes through the column 92 on the different side.
  • the thrust is applied to drive the transmission frame 9 to move together with the nut 31.
  • the nut 31 is composed of an inner ring and an outer ring, and the inner ring and the screw rod 2 are screwed.
  • the outer ring sleeve is sleeved on the inner ring and cooperates with the anti-slip teeth.
  • the outer ring faces the side of the beam 11 and extends outwardly with the mounting seat of the follower member 7.
  • the mounting seat has a screw hole
  • the follower member 7 has a screw and a screw Connected in the screw hole, the follower member 7 and the nut 31 are fixedly connected.
  • the follower member 7 may be a roller or other type of member having a smooth surface running resistance, such as a sliding block having a smooth surface.
  • the use of the roller and the guide lock block 51 can minimize the running resistance of the nut assembly 3 when passing through the surface of the guide block 51, thereby improving the smoothness of the system.
  • the two sides of the outer ring of the nut 31 are respectively located between the corresponding adjacent columns 92, and the screw rod 2 is driven to move axially along the screw rod 2 through the outer ring of the nut 31.
  • the nut assembly 3 further includes a torsion force torsion spring 10 for applying a torsion force to the nut 31.
  • a torsion force torsion spring 10 for applying a torsion force to the nut 31.
  • One end of the torsion spring rests on the transmission frame 9, and the other end abuts against the nut 31.
  • the torsion spring adopts a model with an inner diameter larger than the diameter of the screw rod 2, and is sleeved on the nut spring 31. Outside the lead screw 2, the outer ring of the nut 31 has a stopper 32 extending outwardly, and one end of the torsion spring abuts against the stopper 32.
  • the limiting mechanism 4 includes a limiting plate 13 mounted on the beam 11, the limiting plate 13 has a side surface facing the guiding block 51, and the side surface and the side surface of the guiding lock block 51 can fall into In the space of the follower member 7, the limiting plate 13 is rotatably mounted on the beam 11 via a pin 14, the limiting plate 13 having a bent vertical plate 26 facing the side of the guiding block 51, the angle of the vertical plate 26 According to the actual application, specifically, when the follower member 7 is not in contact with the vertical plate 26, the upper half of the bent vertical plate 26 is vertical, and the lower half guide is bent toward the lock block 51, and After the follower member 7 is in contact with the vertical plate 26, the driving limit plate 13 is rotated.
  • the folding degree is set according to the rotation angle of the limiting plate 13, and if the rotation angle of the limiting plate 13 is ⁇ , the angle of the obtuse angle between the upper half and the lower half of the vertical plate 26 is 180°- ⁇ .
  • a return spring is further disposed between the limiting plate 13 and the pin shaft 14.
  • the return spring may be a torsion spring, and the torsion spring is sleeved on the pin shaft 14 and one end thereof is fixed at the limit.
  • the other end of the plate 13 is fixed on the beam 11.
  • the limiting plate 13 can trigger the signal switch 15 through its edge during the rotating action.
  • the limiting plate 13 is provided with a waist hole 27, and the limiting pin 19 is mounted on the beam 11. The position pin 19 extends into the waist hole 27 to limit the rotation angle of the limiting plate 13.
  • the limiting mechanism 4 further includes a manual mechanism including a fixing bracket 20 mounted on the beam 11 and a movable bracket 17 mounted on the pin shaft 14, the two brackets
  • the return spring is mounted with a return spring, and the return spring can be a torsion spring.
  • the torsion spring is sleeved on the pin shaft 14, one end of which is fixed on the fixing bracket 20, and the other end is fixedly connected with the movable bracket 17, and the movable bracket 17 can follow the rotation process.
  • the component 7 is disengaged from the space between the guiding lock block 51 and the limiting mechanism 4, in particular, a bent dialing block 21 can be arranged in the lower part of the movable bracket 17, and the dialing block 21 will be from below the following component 7 It is disengaged from the space between the guiding lock block 51 and the limiting mechanism 4, and the movable bracket 17 can be driven to rotate around the pin shaft 14 by the manual pulling rope 8, and the manual pulling rope 8 is connected with the unlocking switch, and the unlocking switch can be a manual The knob can pull the manual drawstring 8 when rotated. In practical applications, it is actually installed in a position such as an inner wall of a subway that is easily accessible to people.
  • the double-opening sliding door system of the invention has a compact cooperation between the nut assembly 3 and the guiding lock block 51 and the limiting member, and the structure of each component is relatively simple, and is stable during operation and is not easy to malfunction. Moreover, due to the simple structure, the quality of the entire system can be degraded, and the production cost is reduced, and it has a good effect when applied to a large area in rail transportation, vehicles and the like.
  • the spiral drive control system of the present invention can be divided into the following motion processes and states:
  • the controller sends a signal to the motor 1 to cause the motor 1 to drive the screw 2 to rotate.
  • the screw rod 2 drives the follower member 7 through the nut assembly 3 to move along the axial direction of the screw rod 2 to the limiting mechanism 4, when the follower
  • the component 7 contacts the guide lock block 51, it moves to the limit plate 13 under the guidance of the upper surface of the guide lock block 51 and is blocked by the limit plate 13, and the follower member 7 rotates with the screw rod 2 into the guide lock block 51.
  • the space between the side surface and the limiting plate 13 is locked.
  • the limiting plate 13 rotates to trigger the signal switch 15 disposed under the signal switch 15, and after the signal switch 15 sends an in-position signal to the controller, the controller controls the motor. 1 Stop and complete the lock.
  • the controller sends a signal to the motor 1 to cause the motor 1 to drive the screw 2 to rotate in the reverse direction, and the follower member 7 is unlocked when the screw 2 is reversely rotated to the limit of disengaging the guiding block 51, and is limited.
  • the position plate 13 is disengaged, the limiting plate 13 is returned by the action of the torsion spring, the trigger signal switch 15 sends an unlocking signal to the controller, and then the limiting member moves axially along the screw rod 2.
  • the follower member 7 is moved to the other end of the screw 2, the motor 1 is stopped.
  • Manual locking The controlled object 6 is manually driven, so that the nut assembly 3 is moved in the axial direction of the screw rod 2 to the limiting mechanism 4, and the screw rod 2 is passively rotated.
  • the follower member 7 contacts the guide lock block 51, it moves to the limit plate 13 under the guidance of the upper surface of the guide lock block 51 and is blocked by the limit plate 13, and the follower member 7 rotates with the screw rod 2 into the guide lock.
  • the space between the side of the block 51 and the limiting plate 13 is locked.
  • the limiting plate 13 rotates to trigger the signal switch 15 disposed under it, and the signal switch 15 sends an in-position signal to the controller to control
  • the motor 1 is controlled to stop and the lock is completed.

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Abstract

一种螺旋驱动控制系统，包括固定于横梁(11)上的驱动机构、导向锁块(51)、限位机构(4)；驱动机构包括由电机(1)驱动的丝杆(2)和螺母组件(3)；螺母组件(3)包括传动架(9)、套设于丝杆(2)上的螺母(31)、固定在螺母(31)上的随动部件(7)；螺母(31)安装在传动架(9)内，传动架(9)连接被控对象(6)；丝杆(2)驱动螺母组件(3)沿丝杆(2)轴向往复运动；丝杆(2)正向转动过程中，当随动部件(7)接触到导向锁块(51)时，在导向锁块(51)上表面的导向下运动至限位机构(4)并被限位机构(4)阻挡，随动部件(7)随丝杆(2)转动进入导向锁块(51)的侧面与限位机构(4)之间的空间而被锁定；丝杆(2)反向转动时，随动部件(7)随丝杆(2)反向转动至脱离导向锁块(51)的限制而解除锁定，然后沿丝杆(2)轴向运动。该系统解决了电磁锁在失效时带来的安全问题，也比机械锁结构更为简单可靠。

Description

螺旋驱动控制系统 技术领域
本发明涉及自动控制系统领域，具体是一种螺旋驱动控制系统。
背景技术
螺旋驱动控制系统，一般为电机驱动螺杆，带动设置在螺杆上的螺母组件进行往复运动，进而带动与螺母组件连接的被控对象。通常而言，螺旋驱动控制系统较多应用于轨道门、电动门领域，其同时还具有锁定与解锁功能。通常应用于上述领域的螺旋驱动控制系统，由电磁锁对螺母组件进行锁定，进而实现锁门的功能。这种形式的螺旋驱动控制系统，电磁锁必须随时通电才能保证锁门的稳定性，如果电磁锁断电后，则会存在门自动打开风险，而现有技术中以机械锁对门进行锁定的结构，大多存在结构复杂的问题，作为主要由机械结构构成的系统，结构复杂会带来可靠性差，自重大，不易控制等问题，尤其在应用于公共交通领域时，会威胁到乘客的人身安全。
发明内容
发明目的：本发明提供的一种螺旋驱动控制系统，以解决现有技术中，应用电磁锁的门系统所存在的断电后门会自动打开的问题，以及应用机械锁的门系统所存在的结构复杂，自重大，不易控制等问题。
技术方案：为解决上述技术问题，本发明的一种螺旋驱动控制系统，包括固定于横梁上的驱动机构、导向锁块、限位机构；所述驱动机构包括由电机驱动的丝杆和螺母组件；所述螺母组件包括传动架、套设于丝杆上的螺母、固定在螺母上的随动部件；螺母安装在传动架内，传动架连接被控对象；丝杆驱动螺母组件沿丝杆轴向往复运动；丝杆正向转动过程中，当随动部件接触到导向锁块时，在导向锁块上表面的导向下运动至限位机构并被该限位机构阻挡，随动部件随丝杆转动进入导向锁块的侧面与限位机构之间的空间而被锁定；丝杆反向转动时，随动部件随丝杆反向转动至脱离导向锁块的限制而解除锁定，然后沿丝杆轴向运动。
进一步地，所述传动架中有限定螺母随丝杆转动角度范围的机构，由此限制随动部件随螺母运动时因震动而出现大角度的转动。
进一步地，所述传动架具有与被控对象连接的安装部，安装部向上延伸形成由四根立柱构成的螺母安装部，螺母安装在四根立柱构成的空间内，在其中面向横梁一侧的两根立柱顶端安装有限定螺母随丝杆转动角度范围的限位销。
进一步地，所述螺母的外径大于两侧立柱之间的距离，因此螺母被限制在两侧立柱之间的空间内，在螺母沿丝杆轴向运动时，通过对不同侧的立柱施加推力，带动传动架 随螺母一起运动。
进一步地，所述螺母由内圈和外圈构成，内圈与丝杆螺纹配合，外圈套在内圈上并通过防滑齿相互配合，外圈面向横梁一侧向外延伸有随动部件的安装座。
进一步地，所述安装座有一螺孔，随动部件有一螺杆，螺杆旋接在螺孔内，使随动部件和螺母固定连接。
进一步地，所述随动部件为滚轮，采用滚轮与导向锁块搭配，在通过导向锁块表面时能最大限度减小螺母组件的运行阻力，提升系统的使用平稳性。
进一步地，所述螺母的外圈两侧分别位于对应的相邻立柱之间，丝杆通过螺母外圈驱动传动架沿丝杆轴向移动。
进一步地，所述螺母组件中还包含向螺母施加扭转力的弹性部件。
进一步地，所述弹性部件为扭簧，扭簧一端搭靠在传动架上，另一端搭靠在螺母上，扭簧采用内径大于丝杆直径的型号，套在丝杆外部。
进一步地，所述螺母外圈向外延伸有挡块，扭簧一端搭靠在该挡块上。
进一步地，所述导向锁块具有一引导随动部件向限位机构移动的光滑的上表面。
进一步地，所述导向锁块具有一面向限位机构的侧面，该侧面与限位机构之间形成能够落入随动部件的空间。
进一步地，所述侧面为能够限制随动部件弹出的斜面。
进一步地，所述侧面与竖直面之间的夹角为0-10°，在此角度范围内，导向锁块既能对随动部件施加作用力，又不会因角度过大而导致随动部件被锁死的问题，该角度优选为3°。
进一步地，还设有用于随动部件移动的滑轨，该滑轨与导向锁块相接并与导向锁块的上表面平滑过渡。设置滑轨，使随动部件在滑轨的限制下运动，能够进一步增加螺母组件运动的平稳性。
进一步地，所述限位机构包括一个安装在横梁上的限位板，该限位板具有一面向导向锁块的侧面，该侧面与导向锁块的侧面构成能够落入随动部件的空间。
进一步地，所述限位板通过销轴可旋转地安装在横梁上，该限位板面向导向锁块一侧具有弯折的立板；限位板和销轴之间设有复位弹簧。
进一步地，所述限位板在旋转动作中能够触发信号开关
进一步地，所述限位板上设有腰孔，所述横梁上安装有限位销，限位销伸入腰孔内限制限位板旋转角度。
进一步地，所述限位机构包括一个手动机构，该手动机构包括一个安装在横梁上的固定支架和一个安装在销轴上的活动支架，两个支架之间安装有复位弹簧，活动支架在 旋转过程中能够将随动部件从导向锁块与限位机构之间的空间中拨出。
进一步地，所述活动支架与限位板安装在同一个销轴上，二者相互之间不会干涉，并且集成度高，能够节省安装空间。
有益效果：本发明的一种螺旋驱动控制系统，螺母组件与导向锁块、限位机构的组合，解决了现有技术电磁锁在失效时门自动打开，带来安全风险的问题，也比现有的机械锁结构更为简单可靠，而螺母组件相对于现有技术中与滑槽相配合的形式，结构更加简洁，运行也更平稳，由于构成其整体的部件数量少，因此易于加工且自重小，不需要过大的安装空间。
附图说明
图1为本发明整体结构示意图；
图2为图1的局部示意图，其中，导向锁块为第一种实施方式；
图3为图1的局部示意图，其中，导向锁块为与滑轨配合的第二种方式；
图4为图1中A-A向的螺母组件结构示意图；
图5为螺母组件与传动架的组合结构示意图；
图6为传动架结构示意图；
图7为螺母结构示意图；
图8为导向锁块与限位机构、随动部件的配合状态示意图；
图9为手动机构结构示意图。
具体实施方式
下面结合附图对本发明作更进一步的说明。
如图1至图9所示的一种螺旋驱动控制系统，该系统包括固定于横梁11上的电机1、导向锁块51以及限位机构4，电机1与控制器连接；电机1的轴连接丝杆2，在丝杆2上成套配置有螺母组件3；螺母组件3包括螺母31以及与螺母31刚性连接的随动部件7，螺母31与丝杆2构成螺旋运动副，在螺母31外侧安装有传动架9，传动架9与螺母31之间可相对运动；传动架9与螺母31之间设置有扭簧10，扭簧10以传动架9为支撑向随动部件7施加压力，传动架9连接被控对象6，在具体应用中，该被控对象6可为轨道交通领域中地铁的电动塞拉门或者移门，或者其他领域的电动门；丝杆2正向转动过程中，带动螺母31与随动部件7同时运动，当运动到随动部件7与导向锁块51接触后，随动部件7在导向锁块51上表面的导向下运动至限位机构4并被该限位机构4阻挡，随动部件7随丝杆2转动进入导向锁块51的侧面与限位机构4之间的空间而被锁定；丝杆2反向转动时，随动部件7随丝杆2反向转动至脱离导向锁块51的限制而解除锁定，然后沿丝杆2轴向运动。导向锁块51具有一面向限位机构4的侧面，该侧 面与限位机构4之间形成能够落入随动部件7的空间。侧面为能够限制随动部件7弹出的斜面，侧面与竖直面之间的夹角为0-10°，在此角度范围内，导向锁块51既能对随动部件7施加作用力，又不会因角度过大而导致随动部件7被锁死的问题，该角度优选为3°。而在传动架9中还有限定螺母31随丝杆2转动角度范围的机构，该机构为一个空间，螺母31上的随动部件7在该空间中随螺母31上下运动，该空间的上端与下端限定了随动部件7的转动范围，进而限定了螺母31随丝杆2运动时的转动范围。
如图2所示，作为第一种实施方式，导向锁块51具有一引导随动部件7向限位机构4移动的光滑的上表面，在随动部件7运动过程中，当其不与导向锁块51上表面接触时，处于自由状态，即位于上述限定随动部件7转动的空间的下端，设置在螺母31与传动架9之间的扭簧10可设置为处于放松状态或者较小的压缩状态，不向螺母31施加扭转力，或者向螺母31施加较小的扭转力，可使螺母31在带动随动部件7运行中，更加平稳。当随动部件7通过导向锁块51上表面时，扭簧10被压缩，向螺母31施加扭力，由此，保证了随动部件7能够在接触到限位板13后，通过丝杆2转动带动螺母31以及扭簧10施加的扭转力，可顺利地进入限位板13与导向锁块51之间的空间。
如图3所示，作为第二种实施方式，横梁11上还固定安装有用于随动部件7移动的滑轨5，该滑轨5与导向锁块51相接并与导向锁块51的上表面平滑过渡，具体为，导向锁块51设置在滑轨5靠近限位部件的一端，并具有水平的上表面，与滑轨5的上表面相接成为一个整体水平表面。设置滑轨5后，随动部件7即与滑轨5上表面接触并可在该上表面上往复运动，在这种设置方式下，随动部件7位于上述限定随动部件7转动的空间的上端与下端之间，不与上端或下端接触，此时螺母31与传动架9之间的扭簧10处于压缩状态，当随动部件7运动到与限位板13接触后，丝杆2转动带动螺母31转动的力以及扭簧10对螺母31施加的扭转力，保证了随动部件7能够顺利进入限位板13与导向锁块51之间的空间。设置滑轨5，使随动部件7在滑轨5的限制下运动，能够进一步增加螺母组件3运动的平稳性。
如图4至图6所示，传动架9具有与被控对象6连接的安装部91，安装部91向上延伸形成由四根立柱92构成的螺母安装部，螺母31安装在四根立柱92构成的空间内，在其中面向横梁11一侧的两根立柱92顶端安装有限定螺母31随丝杆2转动角度范围的限位销12，因此，限位销12与横梁11侧的两根立柱92的底部之间形成了螺母31随丝杆2转动时的转动空间，限位销12即为上述的上端，而两根立柱92之间空间的底部则为下端。螺母31的外径大于两侧立柱92之间的距离，因此螺母31被限制在两侧立柱92之间的空间内，在螺母31沿丝杆2轴向运动时，通过对不同侧的立柱92施加推力，带动传动架9随螺母31一起运动，螺母31由内圈和外圈构成，内圈与丝杆2螺 纹配合，外圈套在内圈上并通过防滑齿相互配合，外圈面向横梁11一侧向外延伸有随动部件7的安装座，安装座有一螺孔，随动部件7有一螺杆，螺杆旋接在螺孔内，使随动部件7和螺母31固定连接。随动部件7可以采用滚轮，也可是其他类型表面光滑运行阻力小的部件，如表面光滑的滑动块等。采用滚轮与导向锁块51搭配，在通过导向锁块51表面时能最大限度减小螺母组件3的运行阻力，提升系统的使用平稳性。螺母31的外圈两侧分别位于对应的相邻立柱92之间，丝杆2通过螺母31外圈驱动传动架9沿丝杆2轴向移动。螺母组件3中还包含向螺母31施加扭转力扭簧10，扭簧一端搭靠在传动架9上，另一端搭靠在螺母31上，扭簧采用内径大于丝杆2直径的型号，套在丝杆2外部，螺母31外圈有向外延伸有挡块32，扭簧一端搭靠在该挡块32上。
如图8所示，限位机构4包括一个安装在横梁11上的限位板13，该限位板13具有面向导向锁块51的侧面，该侧面与导向锁块51的侧面构成能够落入随动部件7的空间，限位板13通过销轴14可旋转地安装在横梁11上，该限位板13面向导向锁块51一侧具有弯折的立板26，该立板26的角度根据实际应用时配做，具体为，在随动部件7不与立板26接触时，该弯折立板26的上半段为竖直，下半段向导向锁块51的方向弯折，而随动部件7与立板26接触后，驱动限位板13转动，当转动停止后，下半段变为竖直方向，上半段向导向锁块51的方向弯折，立板26的弯折度，根据限位板13的转动角度而设定，如限位板13的转动角度为α，那么立板26的上半段与下半段之间所夹钝角的角度为180°-α；限位板13和销轴14之间还设置有复位弹簧，复位弹簧可以为扭簧，扭簧套在销轴14上，其一端固定在限位板13上，另一端固定在横梁11上，限位板13在旋转动作中能够通过其边缘触发信号开关15，限位板13上开有腰孔27，横梁11上安装有限位销19，限位销19伸入腰孔27内限制限位板13旋转角度。
如图8、图9所示，限位机构4还包括一个手动机构，该手动机构包括一个安装在横梁11上的固定支架20和一个安装在销轴14上的活动支架17，两个支架之间安装有复位弹簧，复位弹簧可以为扭簧，扭簧套在销轴14，其一端固定在固定支架20上，另一端与活动支架17固定连接，活动支架17在旋转过程中能够将随动部件7从导向锁块51与限位机构4之间的空间中拨出，具体为，可在活动支架17下部设置一个弯折的拨动块21，拨动块21从随动部件7下方将其从导向锁块51与限位机构4之间的空间中拨出，活动支架17可通过手动拉绳8驱动绕销轴14转动，手动拉绳8与解锁开关连接，解锁开关可以为一个手动旋钮，旋转时能够拉动手动拉绳8。在实际应用中，其实际安装在诸如地铁内壁等能够使人容易接触到的位置上。当旋动解锁开关带动活动支架17以销轴14为转动中心转动时，拨动块21推动随动部件7向上运动。活动支架17与限位板13安装在同一个销轴14上，二者相互之间不会干涉，并且集成度高，能够节省安 装空间。
本发明的一种双开塞拉门系统，其螺母组件3与导向锁块51、限位部件之间的配合紧凑，各个部件的结构又相对简单，在运行过程中既平稳，又不易发生故障，而且由于结构简单，还能带来整个系统的质量下降，且成产成本降低，在大面积应用于轨道交通、车辆等领域时，具有很好的效果。
本发明的一种螺旋驱动控制系统，可分为以下运动过程及状态：
1、电动锁定：控制器向电机1发出信号，使电机1驱动丝杆2转动，丝杆2通过螺母组件3驱动随动部件7沿丝杆2轴向向限位机构4运动，当随动部件7接触到导向锁块51时，在导向锁块51上表面的导向下运动至限位板13并被该限位板13阻挡，随动部件7随丝杆2转动进入导向锁块51的侧面与限位板13之间的空间而被锁定，在此过程中，限位板13转动，触发设置在其下方的信号开关15，信号开关15向控制器发出到位信号后，控制器控制电机1停转，完成锁定。
2、电动解锁：控制器向电机1发送信号，使电机1带动丝杆2反向转动，随动部件7随丝杆2反向转动至脱离导向锁块51的限制而解除锁定，并于限位板13脱离，限位板13在扭簧的作用下回位，触发信号开关15向控制器发出解锁信号，然后限位部件沿丝杆2轴向运动。当随动部件7运动到丝杆2另一端时，电机1停转。
3、手动锁定：手动驱动被控对象6，使螺母组件3在丝杆2轴向向限位机构4运动，此时丝杆2为被动转动。当随动部件7接触到导向锁块51时，在导向锁块51上表面的导向下运动至限位板13并被该限位板13阻挡，随动部件7随丝杆2转动进入导向锁块51的侧面与限位板13之间的空间而被锁定，在此过程中，限位板13转动，触发设置在其下方的信号开关15，信号开关15向控制器发出到位信号后，控制器控制电机1停转，完成锁定。
4、手动解锁：锁定状态时，通过转动解锁开关，使得手动拉绳8拉动活动支架17绕销轴14做顺时针方向转动，活动支架17的拨动块21从下部将随动部件7拨动，使随动部件7离开锁定位置，同时扭簧驱动限位板13绕销轴14顺时针转动，并触发信号开关15，松开解锁开关后，活动支架17在复位弹簧的驱动下旋转到起始位置，然后手动驱动被控对象6，使螺母组件3在丝杆2轴向向远离限位机构4的方向运动，实现手动解锁。
以上所述仅是本发明的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (22)

  1. 一种螺旋驱动控制系统，其特征在于：包括固定于横梁(11)上的驱动机构、导向锁块(51)、限位机构(4)；所述驱动机构包括由电机(1)驱动的丝杆(2)和螺母组件(3)；所述螺母组件(3)包括传动架(9)、套设于丝杆(2)上的螺母(31)、固定在螺母(31)上的随动部件(7)；螺母(31)安装在传动架(9)内，传动架(9)连接被控对象(6)；丝杆(2)驱动螺母组件(3)沿丝杆(2)轴向往复运动；丝杆(2)正向转动过程中，当随动部件(7)接触到导向锁块(51)时，在导向锁块(51)上表面的导向下运动至限位机构(4)并被该限位机构(4)阻挡，随动部件(7)随丝杆(2)转动进入导向锁块(51)的侧面与限位机构(4)之间的空间而被锁定；丝杆(2)反向转动时，随动部件(7)随丝杆(2)反向转动至脱离导向锁块(51)的限制而解除锁定，然后沿丝杆(2)轴向运动。
  2. 根据权利要求1所述的螺旋驱动控制系统，其特征在于：所述传动架(9)中有限定螺母(31)随丝杆(2)转动角度范围的机构。
  3. 根据权利要求2所述的螺旋驱动控制系统，其特征在于：所述传动架(9)具有与被控对象(6)连接的安装部(91)，安装部(91)向上延伸形成由四根立柱(92)构成的螺母安装部，螺母安装在四根立柱(92)构成的空间内，在其中面向横梁(11)一侧的两根立柱(92)顶端安装有限定螺母(31)随丝杆(2)转动角度范围的限位销(12)。
  4. 根据权利要求3所述的螺旋驱动控制系统，其特征在于：所述螺母(31)的外径大于两侧立柱(92)之间的距离。
  5. 根据权利要求3所述的螺旋驱动控制系统，其特征在于：所述螺母(31)由内圈和外圈构成，内圈与丝杆(2)螺纹配合，外圈套在内圈上并通过防滑齿相互配合，外圈面向横梁(11)一侧向外延伸有随动部件(7)的安装座。
  6. 根据权利要求5所述的螺旋驱动控制系统，其特征在于：所述安装座有一螺孔，随动部件(7)有一螺杆，螺杆旋接在螺孔内，使随动部件(7)和螺母(31)固定连接。
  7. 根据权利要求1-6任一项所述的螺旋驱动控制系统，其特征在于：所述随动部件(7)为滚轮。
  8. 根据权利要求5所述的螺旋驱动控制系统，其特征在于：所述螺母(31)的外圈两侧分别位于对应的相邻立柱(92)之间，丝杆(2)通过螺母(31)外圈驱动传动架(9)沿丝杆(2)轴向移动。
  9. 根据权利要求1或3所述的螺旋驱动控制系统，其特征在于：所述螺母组件(3)中还包含向螺母(31)施加扭转力的弹性部件(10)。
  10. 根据权利要求9所述的螺旋驱动控制系统，其特征在于：所述弹性部件(10)为扭簧，扭簧一端搭靠在传动架(9)上，另一端搭靠在螺母(31)上。
  11. 根据权利要求10所述的螺旋驱动控制系统，其特征在于：所述螺母(31)外圈向外延伸有挡块(32)，扭簧一端搭靠在该挡块(32)上。
  12. 根据权利要求1所述的螺旋驱动控制系统，其特征在于：所述导向锁块(51)具有一引导随动部件(7)向限位板(13)移动的光滑的上表面。
  13. 根据权利要求1或12所述的螺旋驱动控制系统，其特征在于：所述导向锁块(51)具有一面向限位板(13)的侧面，该侧面与限位板(13)之间形成能够落入随动部件(7)的空间。
  14. 根据权利要求13所述的螺旋驱动控制系统，其特征在于：所述侧面为能够限制随动部件(7)弹出的斜面。
  15. 根据权利要求14所述的螺旋驱动控制系统，其特征在于：所述侧面与竖直面之间的夹角为0-10°。
  16. 根据权利要求1或12所述的螺旋驱动控制系统，其特征在于：还设有用于随动部件(7)移动的滑轨(5)，该滑轨(5)与导向锁块(51)相接并与导向锁块(51)的上表面平滑过渡。
  17. 根据权利要求1所述的螺旋驱动控制系统，其特征在于：所述限位机构(4)包括一个安装在横梁(11)上的限位板(13)，该限位板(13)具有一面向导向锁块(51)的侧面，该侧面与导向锁块(51)的侧面构成能够落入随动部件(7)的空间。
  18. 根据权利要求17所述的螺旋驱动控制系统，其特征在于：所述限位板(13)通过销轴可旋转地安装在横梁(11)上，该限位板(13)面向导向锁块(51)一侧具有弯折的立板(26)；限位板(13)和销轴之间设有复位弹簧。
  19. 根据权利要求18所述的螺旋驱动控制系统，其特征在于：所述限位板(13)在旋转动作中能够触发信号开关(15)。
  20. 根据权利要求18所述的螺旋驱动控制系统，其特征在于：所述限位板(13)上设有腰孔(27)，所述横梁(11)上安装有限位销(19)，限位销(19)伸入腰孔(27)内限制限位板(13)旋转角度。
  21. 根据权利要求1、18或19所述的螺旋驱动控制系统，其特征在于：所述限位机构(7)包括一个手动机构，该手动机构包括一个安装在横梁(11)上的固定支架(20)和一个安装在销轴上的活动支架(17)，两个支架之间安装有复位弹簧，活动支架(17)通过手动拉绳(8)驱动绕销轴转动，在转动过程中能够将随动部件(7)从导向锁块(51)与限位板(13)之间的空间中拨出。
  22. 根据权利要求21所述的螺旋驱动控制系统，其特征在于：所述活动支架(17)与限位板(13)安装在同一个销轴(14)上。
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US20190024408A1 (en) 2019-01-24
US11214981B2 (en) 2022-01-04
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JP2019502848A (ja) 2019-01-31
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KR20180129770A (ko) 2018-12-05
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