WO2021168959A1 - Cover plate assembly for climb-free lift, and climb-free lift - Google Patents

Cover plate assembly for climb-free lift, and climb-free lift Download PDF

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Publication number
WO2021168959A1
WO2021168959A1 PCT/CN2020/081286 CN2020081286W WO2021168959A1 WO 2021168959 A1 WO2021168959 A1 WO 2021168959A1 CN 2020081286 W CN2020081286 W CN 2020081286W WO 2021168959 A1 WO2021168959 A1 WO 2021168959A1
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WO
WIPO (PCT)
Prior art keywords
limit switch
plate
motor
cover
cover plate
Prior art date
Application number
PCT/CN2020/081286
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French (fr)
Chinese (zh)
Inventor
刘子昭
刘志欣
王喜军
宋永强
Original Assignee
中际联合（北京）科技股份有限公司
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Application filed by 中际联合（北京）科技股份有限公司 filed Critical 中际联合（北京）科技股份有限公司
Publication of WO2021168959A1 publication Critical patent/WO2021168959A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures

Definitions

  • the present invention relates to the technical field of fans, in particular to a cover plate assembly of a climbing-free device and a climbing-free device.
  • the Climbing-free device is a kind of auxiliary lifting tool widely used in wind turbines.
  • the existing climbing-free device usually includes a climbing ladder, a track, a lift truck, and multiple platforms arranged in the wind turbine tower.
  • the ladder and the track extend along the height of the wind turbine tower, and the lift truck is slidably arranged on the track;
  • the two platforms are arranged at intervals along the height direction of the wind turbine tower.
  • Each platform is provided with a lift channel for the lift truck to pass through, and the lift channel is rotatably provided with a cover plate; the platform is also provided with a driving device and a limit stop
  • the switch, the driving device is connected with the cover plate, and is used to drive the cover plate to open or close the lift truck channel.
  • the driving device When the lift truck moves up and down along the track, the driving device is controlled to start by directly touching the trigger lever of the travel switch along the road, and the driving device drives the cover plate to open or close the lift truck channel of the platform.
  • the cover plate When the cover plate opens or closes the lift channel of the platform, it directly touches the corresponding limit switch, and then closes the driving device. Due to the different sizes of different cover plates, the installation position of the limit switch corresponding to each cover plate will be different. Special adjustments need to be made according to the size of the cover plate during on-site installation, which not only causes inconvenience in on-site installation, but also for some experience For insufficient installers, the position adjustment of the limit switch is prone to deviation.
  • the present invention aims to solve at least one of the technical problems existing in the prior art or related technologies. For this reason, the present invention proposes a cover assembly of a climb-free device with strong applicability and operation installation.
  • the invention also provides a crawler-free device.
  • the cover plate is rotatably set on the platform of the tower;
  • the motor is set on the platform
  • the rotating assembly is connected with the motor, the rotating assembly is provided with a traction member, the free end of the traction member is connected with the cover plate, and the rotating assembly is provided with a trigger plate; the motor is used to drive the The rotating assembly rotates so that the traction member pulls the cover to open or close the lift truck channel of the platform;
  • the fixed plate is arranged on the side of the rotating assembly facing away from the motor, and the side of the fixed plate facing the rotating assembly is provided with a first limit switch and a second limit switch electrically connected to the motor, so
  • the first limit switch and the second limit switch are located on the rotation stroke of the trigger plate, and the relative position of the first limit switch and the second limit switch satisfies: when the cover is opened When the elevator car channel of the platform is used, the trigger plate triggers the first limit switch; when the cover plate closes the elevator car channel of the platform, the trigger plate triggers the second limit switch.
  • the cover assembly of the climbing-free device is convenient to install and has strong applicability. Because the first limit switch and the second limit switch are not directly triggered by the cover plate, but are triggered by the trigger plate of the rotating assembly Therefore, the installation position of the first limit switch and the second limit switch has nothing to do with the size of the cover plate. For covers of different specifications and sizes, there is no need to adjust the first limit switch and the second limit switch on the fixed plate for on-site installation. The installation location saves installation time and reduces the work intensity of the installer.
  • cover assembly of the climb-free device may also have the following additional technical features:
  • the rotating assembly includes a rotating member, a driving gear, and a driven gear, the rotating shaft of the rotating member is connected to the motor, and the driving gear and the rotating member are coaxially and relatively fixedly arranged ,
  • the driven gear is rotatably arranged on the fixed plate, the driven gear is meshed with the driving gear, the diameter of the driven gear is larger than the driving gear, and the trigger plate is arranged on the On the driven gear.
  • the rotating member is a sprocket
  • the traction member is a chain
  • one end of the chain is connected to the cover plate, and the other end is fixed on the platform.
  • the rotating member is a drum
  • the traction member is a cable
  • one end of the cable is wound around the drum, and the other end is connected to the cover plate.
  • the first limit switch and the second limit switch are photoelectric sensors.
  • the central angle between the first limit switch and the second limit switch on the rotation stroke of the trigger plate is 90°.
  • the present invention further includes a supporting vertical plate detachably connected to the platform, the fixing plate is arranged opposite to the supporting vertical plate, and the motor is fixed on the supporting vertical plate facing away from the fixed On one side of the plate, the rotating assembly is arranged between the supporting vertical plate and the fixed plate.
  • a side of the supporting vertical plate adjacent to the cover plate is formed with a flange facing the cover plate, the flange is provided with a return spring, and the return spring is located on the cover plate. On the rotation stroke.
  • it further includes a controller, and the first limit switch and the second limit switch are electrically connected to the motor through the controller.
  • the controller is configured to control the motor to turn off according to the feedback signal of the first limit switch or the second limit switch within a set time period, and during the set time period If the feedback signal of the first limit switch and the second limit switch is not received, the motor is controlled to be turned off.
  • the present invention further includes an alarm electrically connected to the controller, the first limit switch and the second limit switch are normally closed switches, and the controller is used to simultaneously receive all In the case of feedback signals from the first limit switch and the second limit switch, the motor is controlled to be turned off and the alarm is controlled to start.
  • the climbing-free device includes a lift truck and the cover assembly of the above-mentioned climbing-free device.
  • the sensor group is arranged on the climbing ladder of the tower, and the magnetic induction sensor group includes a first magnetic induction sensor and a second magnetic induction sensor arranged in sequence from top to bottom.
  • the first magnetic induction sensor and the second magnetic induction sensor are both connected to the
  • the controller is electrically connected, and the lift truck is provided with a magnetic element that is inductive with the first magnetic induction sensor and the second magnetic induction sensor.
  • the cover plate assembly of the climbing-free device of the present invention is convenient to install and has strong applicability.
  • the trigger plate When the rotating assembly indirectly drives the cover plate to open the lift truck channel of the platform, the trigger plate is used to trigger the first limit switch to turn off the motor, so that the cover plate does not rotate and remains in the open state; while the rotating assembly indirectly drives the cover plate to close the platform
  • the trigger plate can be used to trigger the second limit switch to turn off the motor, so that the cover plate is kept in the closed state without rotating.
  • the installation positions of the first limit switch and the second limit switch and the cover are irrelevant, that is to say, for covers of different specifications and sizes, the installation positions of the first limit switch and the second limit switch on the fixed board can be exactly the same, and there is no need to adjust the first limit switch and the second limit switch for on-site installation.
  • the installation position of the second limit switch on the fixed plate saves installation time and reduces the work intensity of the installer.
  • Fig. 1 is a schematic front view of the cover assembly of the climb-free device in the embodiment of the present invention
  • Figure 2 is an exploded schematic view of the cover assembly of the climb-free device in the embodiment of the present invention.
  • Figure 3 is a schematic structural view of a rotating assembly in an embodiment of the present invention.
  • Figure 4 is an enlarged view of Figure 3 at A;
  • Figure 5 is an exploded schematic diagram of the rotating assembly in the embodiment of the present invention.
  • Figure 6 is a schematic structural diagram of a driven gear in an embodiment of the present invention.
  • Figure 7 is a schematic front view of the climb-free device in an embodiment of the present invention.
  • Fig. 8 is an axonometric schematic diagram of the climbing-free device in an embodiment of the present invention.
  • Fig. 9 is a schematic diagram of an axonometric view of the climb-free device in an embodiment of the present invention.
  • Fig. 10 is a control principle diagram of the controller in the embodiment of the present invention.
  • connection and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection. Or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium.
  • connection should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection. Or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium.
  • the specific meanings of the above terms in the embodiments of the present invention can be understood in specific situations.
  • the first feature “on” or “under” the second feature may be in direct contact with the first and second features, or the first and second features may pass through the middle. Indirect media contact.
  • the "above”, “above” and “above” of the first feature on the second feature may mean that the first feature is directly above or diagonally above the second feature, or it simply means that the level of the first feature is higher than that of the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature may mean that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • the embodiment of the present invention provides a cover plate assembly for a climb-free device.
  • the cover plate assembly includes a cover plate 1, a motor 2, a rotating assembly, and a fixed plate 4.
  • the cover plate 1 is rotatably Set on the platform 7 of the tower, the motor 2 is set on the platform 7, the rotating assembly is connected with the motor 2, the rotating assembly is provided with a traction member 5, the free end of the traction member 5 is connected with the cover plate 1, and the rotating assembly is provided with a trigger plate 3.3.1;
  • the motor 2 is used to drive the rotating assembly to rotate, so that the traction member 5 pulls the cover 1 to open or close the lift channel of the platform 7.
  • the fixed plate 4 is set on the side of the rotating assembly that faces away from the motor 2.
  • the side facing the rotating assembly is provided with a first limit switch 6.1 and a second limit switch 6.2 electrically connected to the motor 2.
  • the first limit switch 6.1 and the second limit switch 6.2 are located on the rotation of the trigger plate 3.3.1 In the stroke, the relative position of the first limit switch 6.1 and the second limit switch 6.2 meets: when the cover 1 opens the lift channel 7.1 of the platform 7, the trigger plate 3.3.1 triggers the first limit switch 6.1; When the board 1 closes the lift truck channel 7.1 of the platform 7, the trigger board 3.3.1 triggers the second limit switch 6.2.
  • the rotating assembly is driven by the motor 2 to rotate forward. Since the traction member 5 is wound around the rotating assembly, the length of the traction member 5 between the cover plate 1 and the rotating assembly gradually decreases with the forward rotation of the rotating assembly. Turn the direction of the car aisle 7.1.
  • the cover plate 1 opens the lift truck channel 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly just rotates to the position where the first limit switch 6.1 is located, and triggers the first limit switch 6.1.
  • the motor 2 stops rotating when it stops, and the cover 1 remains in the open state when it no longer rotates.
  • the rotating assembly is driven by the motor 2 to reverse.
  • the length of the traction member 5 between the cover plate 1 and the rotating assembly gradually increases, and the cover plate 1 gradually rotates toward the hoistway 7.1 under the driving of its own gravity.
  • the trigger plate 3.3.1 of the rotating assembly just rotates to the position where the second limit switch 6.2 is located, and triggers the second limit switch 6.2.
  • the motor 2 stops rotating when it stops, and the cover plate 1 remains in the closed state when it no longer rotates.
  • the relationship between the steering of the motor 2 and the opening and closing of the hoistway 7.1 can be set according to actual needs.
  • the above-mentioned “cover 1 opens the lift channel 7.1 of the platform 7” means that the orthographic projection of the cover 1 on the platform 7 does not fall in the lift channel 7.1, that is, the angle between the cover 1 and the platform 7 Not less than 90°.
  • the above-mentioned “cover 1 closes the lift channel 7.1 of the platform 7” means that the orthographic projection of the cover 1 on the platform 7 falls in the lift channel 7.1, that is, the angle between the cover 1 and the platform 7 Is zero.
  • the trigger plate 3.3.1 is provided on the rotating assembly, and the first limit is set on the rotation stroke of the trigger plate 3.3.1.
  • the position switch 6.1 and the second limit switch 6.2 can use the trigger board 3.3.1 to trigger the first limit switch 6.1 to turn off the motor 2 when the rotating assembly indirectly drives the cover 1 to open the lift channel 7.1 of the platform 7
  • the cover 1 will remain in the open state no longer rotating; and when the rotating assembly indirectly drives the cover 1 to close the lift channel 7.1 of the platform 7, the trigger plate 3.3.1 can be used to trigger the second limit switch 6.2 to turn off the motor 2 , So that the cover plate 1 no longer rotates and remains in the closed state.
  • the first limit switch 6.1 and the second limit switch 6.2 in the embodiment of the present invention are not directly triggered by the cover plate 1, but by the trigger plate 3.3.1 of the rotating assembly, the first limit switch 6.1 and the second limit switch 6.1
  • the installation position of the second limit switch 6.2 has nothing to do with the size of the cover plate 1, that is to say, for the cover plate 1 of different specifications and sizes, the installation position of the first limit switch 6.1 and the second limit switch 6.2 on the fixed plate 4 It can be exactly the same, and there is no need to adjust the installation positions of the first limit switch 6.1 and the second limit switch 6.2 on the fixed plate 4 for on-site installation.
  • the rotating assembly includes a rotating part 3.1, a driving gear 3.2 and a driven gear 3.3.
  • the rotating shaft of the rotating part 3.1 is connected to the motor 2.
  • the driving gear 3.2 and the rotating part 3.1 are coaxially and relatively fixedly arranged.
  • the driving gear 3.3 is rotatably arranged on the fixed plate 4, the driven gear 3.3 meshes with the driving gear 3.2, the diameter of the driven gear 3.3 is larger than the driving gear 3.2, and the trigger plate 3.3.1 is arranged on the driven gear 3.3.
  • the diameter ratio of the driven gear 3.3 to the driving gear 3.2 is preferably 4:1 to 5:1, and the center of the circle between the first limit switch 6.1 and the second limit switch 6.2 on the rotation stroke of the trigger plate 3.3.1
  • the angle is 90°, that is, with the axis of the driven gear 3.3 as the center of the circle, the angle between the first limit switch 6.1 and the second limit switch 6.2 and the center of the circle is 90°.
  • the advantage of this arrangement is that since the shaft of the rotating part 3.1 is connected to the motor 2, the driving gear 3.2 is coaxial with the rotating part 3.1, so the driving gear 3.2 directly reflects the rotation speed of the motor 2, that is, the rotation speed of the driving gear 3.2 and the motor 2 same.
  • the transmission of the driving gear 3.2 and the driven gear 3.3 can reduce the speed of the trigger plate 3.3.1, which is In other words, when the motor 2 indirectly drives the cover 1 to open or close the lift car channel 7.1 of the platform 7, the motor 2 needs to drive the rotating part 3.1 to rotate several times, and the rotation angle of the driven gear 3.3 is less than 360°, which not only improves the motor
  • the deceleration efficiency of 2 also ensures that only the first limit switch 6.1 will be triggered when the cover 1 is turned away from the lift channel 7.1, and the cover 1 will only be turned in the direction of the lift channel 7.1. Trigger the second limit switch 6.2.
  • the rotating assembly can also be only the rotating part 3.1.
  • the diameter of the rotating part 3.1 needs to be set larger to ensure that when the cover 1 opens or closes the lift car channel 7.1,
  • the rotation angle of the rotating member 3.1 is less than 360°.
  • the rotating member 3.1 is a sprocket
  • the traction member 5 is a chain
  • one end of the chain is connected to the cover plate 1
  • the other end of the chain is fixed on the platform 7.
  • the chain can be directly fixed on the platform 7 or can be fixed on the platform 7 through a supporting vertical plate 8.
  • the supporting vertical plate 8 is fixed on the platform 7 at this time, one end of the chain is connected to the cover plate 1, and the other of the chain is fixed on the supporting vertical plate 8. Therefore, when the motor 2 is started, the sprocket rotates accordingly, and as the chain continuously meshes with the sprocket, the length of the chain between the cover plate 1 and the sprocket decreases or increases.
  • Method 2 The rotating member 3.1 is a reel, and the traction member 5 is a cable. One end of the cable is wound around the reel, and the other end is connected to the cover plate 1. When the motor 2 is started, the reel rotates with it, and the cable is gradually wound on the reel or the cable wound on the reel is gradually loosened.
  • the first limit switch 6.1 and the second limit switch 6.2 are photoelectric sensors.
  • the photoelectric sensor can be, but is not limited to, a slot-type photoelectric sensor or a through-beam photoelectric sensor.
  • the slot-type photoelectric sensor includes a base, a transmitter and a receiver.
  • the base is provided with a groove, and the transmitter and the receiver are respectively arranged on both sides of the groove.
  • the trigger plate 3.3.1 of the rotating assembly just rotates into the groove of the second limit switch 6.2, and the transmitter of the second limit switch 6.2
  • the emitted light beam is blocked by the trigger board 3.3.1, and the corresponding receiver cannot receive the light beam emitted by the transmitter, the receiver outputs a shutdown signal, and the motor 2 stops rotating according to the shutdown signal.
  • the first limit switch 6.1 and the second limit switch 6.2 may be micro switches in addition to photoelectric sensors.
  • the cover assembly also includes a supporting vertical plate 8 detachably connected to the platform 7.
  • the fixing plate 4 is arranged opposite to the supporting vertical plate 8, and the motor 2 is fixed to the supporting vertical plate 8 and fixed backwards.
  • the rotating assembly is arranged between the supporting vertical plate 8 and the fixed plate 4.
  • the fixing plate 4 can be fixed to the supporting vertical plate 8 by bolts.
  • the staff can fix the motor 2 on the support stand 8 first, then install the rotating assembly on the motor 2, then wrap the traction member 5 on the rotating assembly, and finally install the fixing plate 4 on the support through bolts.
  • the vertical board 8 can be used.
  • the installer only needs to fix the supporting vertical plate 8 on the platform 7 by bolts, and then fix the free end of the traction member 5 to the cover plate 1.
  • the whole installation process is very convenient and greatly reduces Improve the work intensity of the on-site installers and improve the installation efficiency.
  • the supporting vertical plate 8 is formed with a flange 8.1 facing the cover plate 1 on the side adjacent to the cover plate 1.
  • the flange 8.1 is provided with a return spring 9, which is located in the rotation stroke of the cover plate 1. superior.
  • U-shaped channel steel can be directly used for the supporting vertical plate 8.
  • the cover plate 1 During the forward rotation of the rotating assembly driven by the motor 2, the cover plate 1 is gradually rotated in a direction away from the hoistway 7.1 under the pulling of the traction member 5.
  • the return spring 9 is continuously compressed until the cover plate 1 opens the hoistway 7.1.
  • the motor 2 drives the rotating assembly to reverse, the cover plate 1 starts to rotate in the direction approaching the hoistway 7.1 under the drive of the elastic force of the return spring 9 and its own gravity.
  • the cover plate 1 With the rotation of the cover plate 1, when the cover plate 1 is out of contact with the return spring 9, the cover plate 1 will continue to rotate in the direction approaching the lift car channel 7.1 under the drive of its own gravity until the cover plate 1 closes the lift car channel 7.1. It can be seen that the return spring 9 can provide the cover plate 1 with initial power to rotate toward the hoistway 7.1.
  • the cover assembly further includes a controller 10, and the first limit switch 6.1 and the second limit switch 6.2 are electrically connected to the motor 2 through the controller 10.
  • the controller 10 is used to control the motor to turn off according to the feedback signal of the first limit switch 6.1 or the second limit switch 6.2 within a set time, and the first limit switch 6.1 and the first limit switch 6.1 and 6.2 are not received within the set time.
  • the feedback signal of the second limit switch 6.2 controls the motor to turn off.
  • the setting time is preferably 4 to 7 seconds.
  • the rotating assembly when the motor 2 starts and rotates forward, the rotating assembly is driven by the motor 2 to rotate forward, and the cover plate 1 gradually rotates away from the hoistway 7.1 under the pulling of the traction member 5.
  • the trigger plate 3.3.1 of the rotating assembly triggers the first limit switch 6.1, and the controller 10 controls the motor 2 according to the received feedback signal sent by the first limit switch 6.1 Closed, at this time, the cover 1 will remain in the open state without rotating.
  • the rotating assembly is driven by the motor 2 to reverse, and the cover plate 1 gradually rotates toward the hoistway 7.1 under the drive of its own gravity.
  • the trigger plate 3.3.1 of the rotating assembly triggers the second limit switch 6.2.
  • the controller 10 controls the motor 2 to turn off according to the received feedback signal sent by the second limit switch 6.2. At this time, the cover plate 1 no longer rotates and remains in the closed state.
  • controller 10 does not receive the feedback signals of the first limit switch 6.1 and the second limit switch 6.2 within the set time, it means that the first limit switch 6.1 or the second limit switch 6.2 has failed.
  • the controller 10 directly controls the closing of the motor 2 to prevent the cover 1 from being opened or closed excessively, thereby damaging the motor 2 and the cover 1.
  • the cover plate assembly also includes an alarm that is electrically connected to the controller 10.
  • the first limit switch 6.1 and the second limit switch 6.2 are normally closed switches, and the controller 10 is used for not receiving the first limit switch 6.1 and the first limit switch 6.1 and the first limit switch 6.2. In the case of the feedback signal of the second limit switch 6.2, it controls the motor to turn off and controls the alarm to start. Since the first limit switch 6.1 and the second limit switch 6.2 are normally closed switches, both the first limit switch 6.1 and the second limit switch 6.2 remain connected when they are not triggered.
  • the board 3.3.1 triggers the first limit switch 6.1 or the second limit switch 6.2, it turns off and sends a feedback signal to the controller 10, that is to say, the first limit switch 6.1 and the second limit switch in the normal state At least one of the switches 6.2 is turned on, and the controller 10 can only receive at most one feedback signal, so when the controller 10 receives the feedback signals of the first limit switch 6.1 and the second limit switch 6.2 at the same time, it is explained
  • the first limit switch 6.1 and the second limit switch 6.2 are both disconnected, and at least one of the two has a fault. At this time, the controller 10 directly controls the motor 2 to turn off and activates the alarm.
  • the embodiment of the present invention also provides a climbing-free device, the climbing-free device includes a lift truck 11, a track 13, and a cover assembly of the climb-free device, and the lift truck channel 7.1 of the platform 7
  • the upper and lower sides are equipped with magnetic induction sensor groups, the magnetic induction sensor group is arranged on the climbing ladder 12 of the tower, the magnetic induction sensor group includes a first magnetic induction sensor 14.1 and a second magnetic induction sensor 14.2 arranged in sequence from top to bottom, the first magnetic induction sensor Both 14.1 and the second magnetic induction sensor 14.2 are electrically connected to the controller 10, and the lift truck 11 is provided with a magnetic component that is inductive to the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2.
  • the magnetic material mentioned here refers to a substance that can directly or indirectly generate magnetism from transition elements such as iron, cobalt, nickel and their alloys.
  • the magnetic member can be, but is not limited to, a magnet or an electromagnetic coil.
  • the climbing ladder 12 of the tower is also provided with a climbing-free device control box 15, and the climbing-free device control box 15 is electrically connected to the controller 10.
  • the advantage of this arrangement is that the direct power supply to the controller 10 through the climb-free control box 15 can ensure that when the staff use the climb-free control box 15, the controller 10 also has electricity, which avoids the staff. The situation where the controller 10 is forgotten to be energized occurs.
  • the controller 10 includes a control board and a relay.
  • the first limit switch 6.1, the second limit switch 6.2, the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 are all electrically connected to the input terminal of the control board.
  • the output terminal of the control board is electrically connected to the motor 2 through a relay.
  • the lift truck 11 Since the lift truck 11 is provided with magnetic parts, when the lift truck 11 is located above the platform 7, when the lift truck 11 moves down and passes the magnetic induction sensor group located above the lift truck channel 7.1, the lift truck 11 triggers first The first magnetic induction sensor 14.1 in the magnetic induction sensor group, and then the second magnetic induction sensor 14.2 is triggered. At this time, the control board receives the feedback signal of the first magnetic induction sensor 14.1 before receiving the feedback signal of the second magnetic induction sensor 14.2.
  • the control board receives the feedback signal of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 according to the sequence of receiving the feedback signals of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 It can be determined that the lift truck 11 moves downward, that is, moves toward the cover plate 1 at this time. As a result, the control board controls the forward rotation of the motor 2 through the relay, and as the rotating assembly continues to rotate forward, the cover plate 1 is gradually rotated in a direction away from the hoistway 7.1 under the pulling of the traction member 5. When the cover plate 1 opens the lift truck channel 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly just rotates to the position where the first limit switch 6.1 is located, and triggers the first limit switch 6.1. At this time, the control board controls the relay to be turned off according to the received feedback signal of the first limit switch 6.1, so that the motor 2 is stopped, and the cover 1 no longer rotates and remains in the open state.
  • the elevator car 11 After the lift truck 11 passes through the lift truck channel 7.1 of the platform 7, it continues to move downward.
  • the elevator car 11 passes the magnetic induction sensor group located under the elevator car channel 7.1, the elevator car 11 first triggers the first magnetic induction sensor 14.1 in the magnetic induction sensor group, and then triggers the second magnetic induction sensor 14.2.
  • the control board receives the feedback signal of the first magnetic induction sensor 14.1 before receiving the feedback signal of the second magnetic induction sensor 14.2.
  • the control board receives the feedback signal of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 according to the sequence of receiving the feedback signals of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 It can be determined that the lift truck 11 moves downward, that is, moves away from the cover plate 1 at this time. As a result, the control board controls the motor 2 to reverse through the relay, and the cover plate 1 gradually rotates toward the hoistway 7.1 under the drive of its own gravity. When the cover plate 1 closes the lift truck channel 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly just rotates to the position where the second limit switch 6.2 is located, and triggers the second limit switch 6.2. At this time, the control board will control the relay to turn off according to the received feedback signal of the second limit switch 6.2, so that the motor 2 will be stopped, and the cover 1 will remain in the closed state without rotating.
  • the elevator car 11 when the elevator car 11 is located below the platform 7, when the elevator car 11 moves upward and passes through the magnetic induction sensor group located under the elevator car channel 7.1, the elevator car 11 first triggers the second magnetic sensor group in the magnetic induction sensor group. Magnetic induction sensor 14.2, and then trigger the first magnetic induction sensor 14.1.
  • the control board receives the feedback signal of the second magnetic induction sensor 14.2 before receiving the feedback signal of the first magnetic induction sensor 14.1.
  • the control board receives the feedback signal of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 according to the order in which the feedback signals are received. It can be determined that the lift truck 11 moves upward, that is, moves toward the cover plate 1 at this time.
  • control board controls the motor 2 to rotate forward through the relay, and the cover plate 1 gradually rotates away from the hoistway 7.1 under the pulling of the traction member 5.
  • the trigger plate 3.3.1 of the rotating assembly triggers the first limit switch 6.1.
  • the control board controls the relay to turn off according to the received feedback signal of the first limit switch 6.1, so that the motor 2 is stopped, and the cover 1 is kept in the open state without rotating.
  • the elevator car 11 After the lift truck 11 passes through the lift truck channel 7.1 of the platform 7, it continues to move upward.
  • the elevator car 11 first triggers the second magnetic induction sensor 14.2 in the magnetic induction sensor group, and then triggers the first magnetic induction sensor 14.1.
  • the control board can determine that the lift truck 11 moves upward, that is, moves away from the cover plate 1 at this time.
  • the control board controls the motor 2 to reverse through the relay, and the cover plate 1 gradually rotates toward the hoistway 7.1 under the drive of its own gravity.
  • the control board controls the relay to be turned off according to the received feedback signal of the second limit switch 6.2, so that the motor 2 is stopped, and the cover 1 is kept in the closed state without rotating.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

A cover plate assembly for a climb-free lift, and a climb-free lift. The cover plate assembly comprises a cover plate (1), a fixing plate (4), a motor (2), and a rotating assembly connected to the motor (2). The cover plate (1) is rotatably disposed on a platform (7) of a tower. A traction member (5) is wound on the rotating assembly. The free end of the traction member (5) is connected to the cover plate (1). The rotating assembly is provided with a trigger board (3.3.1). The fixing plate (4) is disposed on the side of the rotating assembly facing away from the motor (2). The fixing plate (4) is provided with a first limiting switch (6.1) and a second limiting switch (6.2) electrically connected to the motor (2). The first limiting switch (6.1) and the second limiting switch (6.2) are located on the rotation path of the trigger board (3.3.1). The relative position of the first limiting switch (6.1) and the second limiting switch (6.2) satisfies: when the cover plate (1) opens the lift cab channel (7.1) of the platform (7), the trigger board (3.3.1) triggers the first limiting switch (6.1); when the cover plate (1) closes the lift cab channel (7.1) of the platform (7), the trigger board (3.3.1) triggers the second limiting switch (6.2). For cover plates (1) of different specifications and sizes, during on-site installation, the installation positions of the first limiting switch (6.1) and the second limiting switch (6.2) on the fixing plate (4) do not need to be adjusted.

Description

免爬器的盖板组件和免爬器Climbing-free cover assembly and climbing-free device
相关申请的交叉引用Cross-references to related applications
本申请要求于2020年2月25日提交的申请号为2020101171667，发明名称为“免爬器的盖板组件和免爬器”的中国专利申请的优先权，其通过引用方式全部并入本文。This application claims the priority of a Chinese patent application filed on February 25, 2020 with the application number 2020101171667 and the invention title "Climbing-free cover assembly and climbing-free device", which are fully incorporated herein by reference.
技术领域Technical field
本发明涉及风机技术领域，尤其涉及一种免爬器的盖板组件和免爬器。The present invention relates to the technical field of fans, in particular to a cover plate assembly of a climbing-free device and a climbing-free device.
背景技术Background technique
免爬器是风机内应用较为广泛的一种辅助升降工具。现有的免爬器通常包括设置在风机塔筒内的爬梯、轨道、升降车和多个平台，爬梯和轨道均沿风机塔筒的高度方向延伸，升降车可滑动地设置在轨道上；多个平台沿风机塔筒的高度方向依次间隔设置，每个平台上开设有用于升降车通过的升降车通道，升降车通道上可转动地设置有盖板；平台上还设置有驱动装置和限位开关，驱动装置与盖板连接，用于驱动盖板打开或关闭升降车通道。Climbing-free device is a kind of auxiliary lifting tool widely used in wind turbines. The existing climbing-free device usually includes a climbing ladder, a track, a lift truck, and multiple platforms arranged in the wind turbine tower. The ladder and the track extend along the height of the wind turbine tower, and the lift truck is slidably arranged on the track; The two platforms are arranged at intervals along the height direction of the wind turbine tower. Each platform is provided with a lift channel for the lift truck to pass through, and the lift channel is rotatably provided with a cover plate; the platform is also provided with a driving device and a limit stop The switch, the driving device is connected with the cover plate, and is used to drive the cover plate to open or close the lift truck channel.
升降车沿轨道上下移动时，通过直接碰触沿路的行程开关的触发杆来控制驱动装置启动，驱动装置驱动盖板打开或关闭平台的升降车通道。盖板打开或关闭平台的升降车通道时直接碰触对应的限位开关，进而关闭驱动装置。由于不同盖板的尺寸不同，因此，与每个盖板对应的限位开关的安装位置也会不同，现场安装时需要根据盖板的尺寸进行专门调节，不仅导致现场安装不便，而且对于一些经验不足的安装人员来说限位开关的位置调节容易出现偏差。When the lift truck moves up and down along the track, the driving device is controlled to start by directly touching the trigger lever of the travel switch along the road, and the driving device drives the cover plate to open or close the lift truck channel of the platform. When the cover plate opens or closes the lift channel of the platform, it directly touches the corresponding limit switch, and then closes the driving device. Due to the different sizes of different cover plates, the installation position of the limit switch corresponding to each cover plate will be different. Special adjustments need to be made according to the size of the cover plate during on-site installation, which not only causes inconvenience in on-site installation, but also for some experience For insufficient installers, the position adjustment of the limit switch is prone to deviation.
发明内容Summary of the invention
本发明旨在至少解决现有技术或相关技术中存在的技术问题之一。为此，本发明提出一种操作安装、适用性强的免爬器的盖板组件。The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies. For this reason, the present invention proposes a cover assembly of a climb-free device with strong applicability and operation installation.
本发明还提供一种免爬器。The invention also provides a crawler-free device.
根据本发明第一方面实施例的免爬器的盖板组件，包括：The cover assembly of the climb-free device according to the embodiment of the first aspect of the present invention includes:
盖板，可转动地设置在塔筒的平台上；The cover plate is rotatably set on the platform of the tower;
电机，设置于所述平台；The motor is set on the platform;
转动组件，与所述电机连接，所述转动组件绕设有牵引件，所述牵引件的自由端与所述盖板连接，所述转动组件设置有触发板；所述电机用于驱动所述转动组件转动，以使所述牵引件牵引所述盖板打开或关闭所述平台的升降车通道；The rotating assembly is connected with the motor, the rotating assembly is provided with a traction member, the free end of the traction member is connected with the cover plate, and the rotating assembly is provided with a trigger plate; the motor is used to drive the The rotating assembly rotates so that the traction member pulls the cover to open or close the lift truck channel of the platform;
固定板，设于所述转动组件背向所述电机的一侧，固定板朝向所述转动组件的一侧设有与所述电机电连接的第一限位开关和第二限位开关，所述第一限位开关和所述第二限位开关位于所述触发板的转动行程上，所述第一限位开关和所述第二限位开关的相对位置满足：当所述盖板打开所述平台的升降车通道时，所述触发板触发所述第一限位开关；当所述盖板关闭所述平台的升降车通道时，所述触发板触发所述第二限位开关。The fixed plate is arranged on the side of the rotating assembly facing away from the motor, and the side of the fixed plate facing the rotating assembly is provided with a first limit switch and a second limit switch electrically connected to the motor, so The first limit switch and the second limit switch are located on the rotation stroke of the trigger plate, and the relative position of the first limit switch and the second limit switch satisfies: when the cover is opened When the elevator car channel of the platform is used, the trigger plate triggers the first limit switch; when the cover plate closes the elevator car channel of the platform, the trigger plate triggers the second limit switch.
根据本发明实施例的免爬器的盖板组件，安装便捷、适用性强，由于第一限位开关和第二限位开关并非由盖板直接触发，而是由转动组件的触发板来触发，因此第一限位开关和第二限位开关的安装位置与盖板的尺寸无关，针对不同规格尺寸的盖板，现场安装无需调节第一限位开关和第二限位开关在固定板上的安装位置，节约了安装时间、降低了安装人员的工作强度。The cover assembly of the climbing-free device according to the embodiment of the present invention is convenient to install and has strong applicability. Because the first limit switch and the second limit switch are not directly triggered by the cover plate, but are triggered by the trigger plate of the rotating assembly Therefore, the installation position of the first limit switch and the second limit switch has nothing to do with the size of the cover plate. For covers of different specifications and sizes, there is no need to adjust the first limit switch and the second limit switch on the fixed plate for on-site installation. The installation location saves installation time and reduces the work intensity of the installer.
另外，根据本发明实施例的免爬器的盖板组件，还可以具有如下附加技术特征：In addition, the cover assembly of the climb-free device according to the embodiment of the present invention may also have the following additional technical features:
根据本发明的一个实施例，所述转动组件包括转动件、主动齿轮和从动齿轮，所述转动件的转轴与所述电机连接，所述主动齿轮与所述转动件同轴且相对固定设置，所述从动齿轮可转动地设置在所述固定板上，所述从动齿轮与所述主动齿轮啮合，所述从动齿轮的直径大于所述主动齿轮，所述触发板设置在所述从动齿轮上。According to an embodiment of the present invention, the rotating assembly includes a rotating member, a driving gear, and a driven gear, the rotating shaft of the rotating member is connected to the motor, and the driving gear and the rotating member are coaxially and relatively fixedly arranged , The driven gear is rotatably arranged on the fixed plate, the driven gear is meshed with the driving gear, the diameter of the driven gear is larger than the driving gear, and the trigger plate is arranged on the On the driven gear.
根据本发明的一个实施例，所述转动件为链轮，所述牵引件为链条，所述链条的一端与所述盖板连接，另一端固定在所述平台上。According to an embodiment of the present invention, the rotating member is a sprocket, the traction member is a chain, one end of the chain is connected to the cover plate, and the other end is fixed on the platform.
根据本发明的一个实施例，所述转动件为卷筒，所述牵引件为缆绳，所述缆绳的一端缠绕于所述卷筒，另一端与所述盖板连接。According to an embodiment of the present invention, the rotating member is a drum, the traction member is a cable, one end of the cable is wound around the drum, and the other end is connected to the cover plate.
根据本发明的一个实施例，所述第一限位开关和所述第二限位开关为 光电传感器。According to an embodiment of the present invention, the first limit switch and the second limit switch are photoelectric sensors.
根据本发明的一个实施例，在所述触发板的转动行程上所述第一限位开关与所述第二限位开关之间的圆心角为90°。According to an embodiment of the present invention, the central angle between the first limit switch and the second limit switch on the rotation stroke of the trigger plate is 90°.
根据本发明的一个实施例，还包括与所述平台可拆卸连接的支撑立板，所述固定板与所述支撑立板相对设置，所述电机固定在所述支撑立板背向所述固定板的一侧，所述转动组件设于所述支撑立板与所述固定板之间。According to an embodiment of the present invention, it further includes a supporting vertical plate detachably connected to the platform, the fixing plate is arranged opposite to the supporting vertical plate, and the motor is fixed on the supporting vertical plate facing away from the fixed On one side of the plate, the rotating assembly is arranged between the supporting vertical plate and the fixed plate.
根据本发明的一个实施例，所述支撑立板临近所述盖板的一侧形成有朝向所述盖板的翻边，所述翻边设置有复位弹簧，所述复位弹簧位于所述盖板的转动行程上。According to an embodiment of the present invention, a side of the supporting vertical plate adjacent to the cover plate is formed with a flange facing the cover plate, the flange is provided with a return spring, and the return spring is located on the cover plate. On the rotation stroke.
根据本发明的一个实施例，还包括控制器，所述第一限位开关和所述第二限位开关通过所述控制器与所述电机电连接。According to an embodiment of the present invention, it further includes a controller, and the first limit switch and the second limit switch are electrically connected to the motor through the controller.
根据本发明的一个实施例，所述控制器用于在设定时长内根据所述第一限位开关或所述第二限位开关的反馈信号控制所述电机关闭，以及在所述设定时长内未接收到所述第一限位开关和所述第二限位开关的反馈信号的情况下控制所述电机关闭。According to an embodiment of the present invention, the controller is configured to control the motor to turn off according to the feedback signal of the first limit switch or the second limit switch within a set time period, and during the set time period If the feedback signal of the first limit switch and the second limit switch is not received, the motor is controlled to be turned off.
根据本发明的一个实施例，还包括与所述控制器电连接的报警器，所述第一限位开关和所述第二限位开关为常闭开关，所述控制器用于同时接收到所述第一限位开关和所述第二限位开关的反馈信号的情况下控制所述电机关闭、并控制所述报警器启动。According to an embodiment of the present invention, it further includes an alarm electrically connected to the controller, the first limit switch and the second limit switch are normally closed switches, and the controller is used to simultaneously receive all In the case of feedback signals from the first limit switch and the second limit switch, the motor is controlled to be turned off and the alarm is controlled to start.
根据本发明第二方面实施例的免爬器，包括升降车以及上述所述的免爬器的盖板组件，所述平台的升降车通道的上下两侧均设有磁感应传感器组，所述磁感应传感器组设置在塔筒的爬梯上，所述磁感应传感器组包括由上至下依次设置的第一磁感应传感器和第二磁感应传感器，所述第一磁感应传感器和所述第二磁感应传感器均与所述控制器电连接，所述升降车设有与所述第一磁感应传感器和所述第二磁感应传感器感应的磁性件。The climbing-free device according to the embodiment of the second aspect of the present invention includes a lift truck and the cover assembly of the above-mentioned climbing-free device. The sensor group is arranged on the climbing ladder of the tower, and the magnetic induction sensor group includes a first magnetic induction sensor and a second magnetic induction sensor arranged in sequence from top to bottom. The first magnetic induction sensor and the second magnetic induction sensor are both connected to the The controller is electrically connected, and the lift truck is provided with a magnetic element that is inductive with the first magnetic induction sensor and the second magnetic induction sensor.
本发明实施例中的上述一个或多个技术方案，至少具有如下技术效果之一：The one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
本发明中的免爬器的盖板组件安装便捷、适用性强，通过在转动组件上设置触发板，并在触发板的转动行程上设置第一限位开关和第二限位开关，就能在转动组件间接驱动盖板打开平台的升降车通道时，利用触发板 触发第一限位开关来关闭电机，使盖板不再转动即保持在打开状态；而在转动组件间接驱动盖板关闭平台的升降车通道时，又可利用触发板触发第二限位开关来关闭电机，使盖板不再转动即保持在关闭状态。由于本发明中第一限位开关和第二限位开关并非由盖板直接触发，而是由转动组件的触发板来触发，因此第一限位开关和第二限位开关的安装位置与盖板的尺寸无关，也就是说，针对不同规格尺寸的盖板，第一限位开关和第二限位开关在固定板上的安装位置可完全相同，现场安装无需调节第一限位开关和第二限位开关在固定板上的安装位置，节约了安装时间、降低了安装人员的工作强度。The cover plate assembly of the climbing-free device of the present invention is convenient to install and has strong applicability. By arranging a trigger plate on the rotating assembly, and setting the first limit switch and the second limit switch on the rotation stroke of the trigger plate, When the rotating assembly indirectly drives the cover plate to open the lift truck channel of the platform, the trigger plate is used to trigger the first limit switch to turn off the motor, so that the cover plate does not rotate and remains in the open state; while the rotating assembly indirectly drives the cover plate to close the platform When the lift truck channel is used, the trigger plate can be used to trigger the second limit switch to turn off the motor, so that the cover plate is kept in the closed state without rotating. Since the first limit switch and the second limit switch in the present invention are not directly triggered by the cover plate, but are triggered by the trigger plate of the rotating assembly, the installation positions of the first limit switch and the second limit switch and the cover The size of the board is irrelevant, that is to say, for covers of different specifications and sizes, the installation positions of the first limit switch and the second limit switch on the fixed board can be exactly the same, and there is no need to adjust the first limit switch and the second limit switch for on-site installation. The installation position of the second limit switch on the fixed plate saves installation time and reduces the work intensity of the installer.
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。The additional aspects and advantages of the present invention will be partly given in the following description, and partly will become obvious from the following description, or be understood through the practice of the present invention.
附图说明Description of the drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图进行简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are For some of the embodiments of the present invention, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.
图1是本发明实施例中免爬器的盖板组件的正视示意图；Fig. 1 is a schematic front view of the cover assembly of the climb-free device in the embodiment of the present invention;
图2是本发明实施例中免爬器的盖板组件的***示意图；Figure 2 is an exploded schematic view of the cover assembly of the climb-free device in the embodiment of the present invention;
图3是本发明实施例中转动组件的结构示意图；Figure 3 is a schematic structural view of a rotating assembly in an embodiment of the present invention;
图4是图3在A处的放大图；Figure 4 is an enlarged view of Figure 3 at A;
图5是本发明实施例中转动组件的***示意图；Figure 5 is an exploded schematic diagram of the rotating assembly in the embodiment of the present invention;
图6是本发明实施例中从动齿轮的结构示意图；Figure 6 is a schematic structural diagram of a driven gear in an embodiment of the present invention;
图7是本发明实施例中免爬器的正视示意图；Figure 7 is a schematic front view of the climb-free device in an embodiment of the present invention;
图8是本发明实施例中免爬器的轴测示意图；Fig. 8 is an axonometric schematic diagram of the climbing-free device in an embodiment of the present invention;
图9是本发明实施例中免爬器的轴测示意图；Fig. 9 is a schematic diagram of an axonometric view of the climb-free device in an embodiment of the present invention;
图10是本发明实施例中控制器的控制原理图。Fig. 10 is a control principle diagram of the controller in the embodiment of the present invention.
附图标记：Reference signs:
1：盖板；2：电机；3.1：转动件；3.2：主动齿轮；1: Cover plate; 2: Motor; 3.1: Rotating parts; 3.2: Driving gear;
3.3：从动齿轮；3.3.1：触发板；4：固定板；5：牵引件；3.3: driven gear; 3.3.1: trigger plate; 4: fixed plate; 5: traction part;
6.1：第一限位开关；6.2：第二限位开关；7：平台；6.1: The first limit switch; 6.2: The second limit switch; 7: Platform;
7.1：升降车通道；8：支撑立板；8.1：翻边；9：复位弹簧；7.1: Lift truck channel; 8: Support vertical plate; 8.1: Flanging; 9: Return spring;
10：控制器；11：升降车；12：爬梯；13：轨道；10: Controller; 11: Lift truck; 12: Climbing ladder; 13: Track;
14.1：第一磁感应传感器；14.2：第二磁感应传感器；14.1: the first magnetic induction sensor; 14.2: the second magnetic induction sensor;
15：免爬器控制箱。15: Climbing-free control box.
具体实施方式Detailed ways
为使发明的目的、技术方案和优点更加清楚，下面将结合发明中的附图，对发明中的技术方案进行清楚地描述，显然，所描述的实施例是发明一部分实施例，而不是全部的实施例。基于发明中的实施例，本领域普通技术人员在没有做出创造性拉动前提下所获得的所有其他实施例，都属于发明保护的范围。In order to make the purpose, technical solutions and advantages of the invention clearer, the technical solutions in the invention will be clearly described below in conjunction with the accompanying drawings in the invention. Obviously, the described embodiments are part of the invention, not all of them. Examples. Based on the embodiments of the invention, all other embodiments obtained by a person of ordinary skill in the art without creative pull shall fall within the scope of protection of the invention.
在本发明实施例的描述中，需要说明的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明实施例的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "right" , "Vertical", "horizontal", "top", "bottom", "inner", "outer" and other directions or positional relations are based on the directions or positional relations shown in the drawings, only for the convenience of description The embodiments of the invention and the simplified description do not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.
在本发明实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明实施例中的具体含义。In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection. Or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood in specific situations.
在本发明实施例中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。In the embodiments of the present invention, unless otherwise clearly defined and defined, the first feature “on” or “under” the second feature may be in direct contact with the first and second features, or the first and second features may pass through the middle. Indirect media contact. Moreover, the "above", "above" and "above" of the first feature on the second feature may mean that the first feature is directly above or diagonally above the second feature, or it simply means that the level of the first feature is higher than that of the second feature. The “below”, “below” and “below” of the second feature of the first feature may mean that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明实施例的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , Structures, materials, or features are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without contradicting each other.
结合图1至图6所示，本发明实施例提供了一种免爬器的盖板组件，该盖板组件包括盖板1、电机2、转动组件和固定板4，盖板1可转动地设置在塔筒的平台7上，电机2设置于平台7，转动组件与电机2连接，转动组件绕设有牵引件5，牵引件5的自由端与盖板1连接，转动组件设置有触发板3.3.1；电机2用于驱动转动组件转动，以使牵引件5牵引盖板1打开或关闭平台7的升降车通道7.1；固定板4设于转动组件背向电机2的一侧，固定板4朝向转动组件的一侧设有与电机2电连接的第一限位开关6.1和第二限位开关6.2，第一限位开关6.1和第二限位开关6.2位于触发板3.3.1的转动行程上，第一限位开关6.1和第二限位开关6.2的相对位置满足：当盖板1打开平台7的升降车通道7.1时，触发板3.3.1触发第一限位开关6.1；当盖板1关闭平台7的升降车通道7.1时，触发板3.3.1触发第二限位开关6.2。As shown in FIGS. 1 to 6, the embodiment of the present invention provides a cover plate assembly for a climb-free device. The cover plate assembly includes a cover plate 1, a motor 2, a rotating assembly, and a fixed plate 4. The cover plate 1 is rotatably Set on the platform 7 of the tower, the motor 2 is set on the platform 7, the rotating assembly is connected with the motor 2, the rotating assembly is provided with a traction member 5, the free end of the traction member 5 is connected with the cover plate 1, and the rotating assembly is provided with a trigger plate 3.3.1; The motor 2 is used to drive the rotating assembly to rotate, so that the traction member 5 pulls the cover 1 to open or close the lift channel of the platform 7. The fixed plate 4 is set on the side of the rotating assembly that faces away from the motor 2. 4 The side facing the rotating assembly is provided with a first limit switch 6.1 and a second limit switch 6.2 electrically connected to the motor 2. The first limit switch 6.1 and the second limit switch 6.2 are located on the rotation of the trigger plate 3.3.1 In the stroke, the relative position of the first limit switch 6.1 and the second limit switch 6.2 meets: when the cover 1 opens the lift channel 7.1 of the platform 7, the trigger plate 3.3.1 triggers the first limit switch 6.1; When the board 1 closes the lift truck channel 7.1 of the platform 7, the trigger board 3.3.1 triggers the second limit switch 6.2.
由此，当电机2启动并正转时，转动组件在电机2的驱动下随之正转。由于牵引件5绕设于转动组件，因此随着转动组件的正转，牵引件5位于盖板1与转动组件之间的长度逐渐减少，盖板1在牵引件5的拉动下逐渐朝远离升降车通道7.1的方向转动。当盖板1打开平台7的升降车通道7.1时，转动组件的触发板3.3.1恰好转动至第一限位开关6.1所在的位置，并触发第一限位开关6.1。第一限位开关6.1被触发时，电机2停机即停止转动，盖板1不再转动即保持在打开状态。Therefore, when the motor 2 starts and rotates forward, the rotating assembly is driven by the motor 2 to rotate forward. Since the traction member 5 is wound around the rotating assembly, the length of the traction member 5 between the cover plate 1 and the rotating assembly gradually decreases with the forward rotation of the rotating assembly. Turn the direction of the car aisle 7.1. When the cover plate 1 opens the lift truck channel 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly just rotates to the position where the first limit switch 6.1 is located, and triggers the first limit switch 6.1. When the first limit switch 6.1 is triggered, the motor 2 stops rotating when it stops, and the cover 1 remains in the open state when it no longer rotates.
当电机2启动并反转时，转动组件在电机2的驱动下随之反转。随着转动组件的反转，牵引件5位于盖板1与转动组件之间的长度逐渐增大，盖板1在自身重力驱动下逐渐朝趋近升降车通道7.1的方向转动。当盖板 1关闭平台7的升降车通道7.1时，转动组件的触发板3.3.1恰好转动至第二限位开关6.2所在的位置，并触发第二限位开关6.2。第二限位开关6.2被触发时，电机2停机即停止转动，盖板1不再转动即保持在关闭状态。When the motor 2 starts and reverses, the rotating assembly is driven by the motor 2 to reverse. With the reversal of the rotating assembly, the length of the traction member 5 between the cover plate 1 and the rotating assembly gradually increases, and the cover plate 1 gradually rotates toward the hoistway 7.1 under the driving of its own gravity. When the cover plate 1 closes the hoistway 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly just rotates to the position where the second limit switch 6.2 is located, and triggers the second limit switch 6.2. When the second limit switch 6.2 is triggered, the motor 2 stops rotating when it stops, and the cover plate 1 remains in the closed state when it no longer rotates.
需要说明的是，对于电机2的转向与升降车通道7.1的开、闭关系可根据实际需要设定。此外，上述所述的“盖板1打开平台7的升降车通道7.1”是指盖板1在平台7上的正投影不落在升降车通道7.1中，即盖板1与平台7的夹角不小于90°。同理，上述所述的“盖板1关闭平台7的升降车通道7.1”是指盖板1在平台7上的正投影落在升降车通道7.1中，即盖板1与平台7的夹角为零。It should be noted that the relationship between the steering of the motor 2 and the opening and closing of the hoistway 7.1 can be set according to actual needs. In addition, the above-mentioned "cover 1 opens the lift channel 7.1 of the platform 7" means that the orthographic projection of the cover 1 on the platform 7 does not fall in the lift channel 7.1, that is, the angle between the cover 1 and the platform 7 Not less than 90°. In the same way, the above-mentioned "cover 1 closes the lift channel 7.1 of the platform 7" means that the orthographic projection of the cover 1 on the platform 7 falls in the lift channel 7.1, that is, the angle between the cover 1 and the platform 7 Is zero.
由上可知，本发明实施例中免爬器的盖板组件安装便捷、适用性强，通过在转动组件上设置触发板3.3.1，并在触发板3.3.1的转动行程上设置第一限位开关6.1和第二限位开关6.2，就能在转动组件间接驱动盖板1打开平台7的升降车通道7.1时，利用触发板3.3.1触发第一限位开关6.1来关闭电机2，使盖板1不再转动即保持在打开状态；而在转动组件间接驱动盖板1关闭平台7的升降车通道7.1时，又可利用触发板3.3.1触发第二限位开关6.2来关闭电机2，使盖板1不再转动即保持在关闭状态。由于本发明实施例中第一限位开关6.1和第二限位开关6.2并非由盖板1直接触发，而是由转动组件的触发板3.3.1来触发，因此第一限位开关6.1和第二限位开关6.2的安装位置与盖板1的尺寸无关，也就是说，针对不同规格尺寸的盖板1，第一限位开关6.1和第二限位开关6.2在固定板4上的安装位置可完全相同，现场安装无需调节第一限位开关6.1和第二限位开关6.2在固定板4上的安装位置。It can be seen from the above that the cover assembly of the climb-free device in the embodiment of the present invention is easy to install and has strong applicability. The trigger plate 3.3.1 is provided on the rotating assembly, and the first limit is set on the rotation stroke of the trigger plate 3.3.1. The position switch 6.1 and the second limit switch 6.2 can use the trigger board 3.3.1 to trigger the first limit switch 6.1 to turn off the motor 2 when the rotating assembly indirectly drives the cover 1 to open the lift channel 7.1 of the platform 7 The cover 1 will remain in the open state no longer rotating; and when the rotating assembly indirectly drives the cover 1 to close the lift channel 7.1 of the platform 7, the trigger plate 3.3.1 can be used to trigger the second limit switch 6.2 to turn off the motor 2 , So that the cover plate 1 no longer rotates and remains in the closed state. Since the first limit switch 6.1 and the second limit switch 6.2 in the embodiment of the present invention are not directly triggered by the cover plate 1, but by the trigger plate 3.3.1 of the rotating assembly, the first limit switch 6.1 and the second limit switch 6.1 The installation position of the second limit switch 6.2 has nothing to do with the size of the cover plate 1, that is to say, for the cover plate 1 of different specifications and sizes, the installation position of the first limit switch 6.1 and the second limit switch 6.2 on the fixed plate 4 It can be exactly the same, and there is no need to adjust the installation positions of the first limit switch 6.1 and the second limit switch 6.2 on the fixed plate 4 for on-site installation.
如图3至图6所示，转动组件包括转动件3.1、主动齿轮3.2和从动齿轮3.3，转动件3.1的转轴与电机2连接，主动齿轮3.2与转动件3.1同轴且相对固定设置，从动齿轮3.3可转动地设置在固定板4上，从动齿轮3.3与主动齿轮3.2啮合，从动齿轮3.3的直径大于主动齿轮3.2，触发板3.3.1设置在从动齿轮3.3上。其中，从动齿轮3.3与主动齿轮3.2的直径比优选为4：1～5：1，在触发板3.3.1的转动行程上第一限位开关6.1与第二限位开关6.2之间的圆心角为90°，也就是说，以从动齿轮3.3的转轴为圆心，第一限位开关6.1和第二限位开关6.2与该圆心连线的夹角为90°。As shown in Figures 3 to 6, the rotating assembly includes a rotating part 3.1, a driving gear 3.2 and a driven gear 3.3. The rotating shaft of the rotating part 3.1 is connected to the motor 2. The driving gear 3.2 and the rotating part 3.1 are coaxially and relatively fixedly arranged. The driving gear 3.3 is rotatably arranged on the fixed plate 4, the driven gear 3.3 meshes with the driving gear 3.2, the diameter of the driven gear 3.3 is larger than the driving gear 3.2, and the trigger plate 3.3.1 is arranged on the driven gear 3.3. Among them, the diameter ratio of the driven gear 3.3 to the driving gear 3.2 is preferably 4:1 to 5:1, and the center of the circle between the first limit switch 6.1 and the second limit switch 6.2 on the rotation stroke of the trigger plate 3.3.1 The angle is 90°, that is, with the axis of the driven gear 3.3 as the center of the circle, the angle between the first limit switch 6.1 and the second limit switch 6.2 and the center of the circle is 90°.
这样设置的好处在于，由于转动件3.1的转轴与电机2连接，主动齿轮3.2与转动件3.1同轴，因此主动齿轮3.2直接反映电机2的转速，也就是说，主动齿轮3.2与电机2的转速相同。而由于从动齿轮3.3与主动齿轮3.2啮合，而从动齿轮3.3的直径大于主动齿轮3.2的直径，因此通过主动齿轮3.2与从动齿轮3.3传动就可降低触发板3.3.1的转速，也就是说，在电机2间接驱动盖板1打开或关闭平台7的升降车通道7.1时，电机2需驱动转动件3.1转动数圈，而从动齿轮3.3的转动角度小于360°，从而不仅提高了电机2的减速效率，而且也保证了盖板1朝远离升降车通道7.1转动的过程中只会触发第一限位开关6.1，盖板1朝趋近升降车通道7.1的方向转动的过程中只会触发第二限位开关6.2。The advantage of this arrangement is that since the shaft of the rotating part 3.1 is connected to the motor 2, the driving gear 3.2 is coaxial with the rotating part 3.1, so the driving gear 3.2 directly reflects the rotation speed of the motor 2, that is, the rotation speed of the driving gear 3.2 and the motor 2 same. Since the driven gear 3.3 meshes with the driving gear 3.2, and the diameter of the driven gear 3.3 is larger than the diameter of the driving gear 3.2, the transmission of the driving gear 3.2 and the driven gear 3.3 can reduce the speed of the trigger plate 3.3.1, which is In other words, when the motor 2 indirectly drives the cover 1 to open or close the lift car channel 7.1 of the platform 7, the motor 2 needs to drive the rotating part 3.1 to rotate several times, and the rotation angle of the driven gear 3.3 is less than 360°, which not only improves the motor The deceleration efficiency of 2 also ensures that only the first limit switch 6.1 will be triggered when the cover 1 is turned away from the lift channel 7.1, and the cover 1 will only be turned in the direction of the lift channel 7.1. Trigger the second limit switch 6.2.
需要说明的是，转动组件除了可以采用上述结构形式以外，还可以仅为转动件3.1，此时转动件3.1的直径需要设置的大一些，以保证盖板1打开或关闭升降车通道7.1时，转动件3.1的转动角度小于360°。It should be noted that, in addition to the above-mentioned structural forms, the rotating assembly can also be only the rotating part 3.1. At this time, the diameter of the rotating part 3.1 needs to be set larger to ensure that when the cover 1 opens or closes the lift car channel 7.1, The rotation angle of the rotating member 3.1 is less than 360°.
其中，转动件3.1通过牵引件5牵引盖板1打开或关闭升降车通道7.1的方式有多种，例如：Among them, there are many ways for the rotating member 3.1 to pull the cover plate 1 through the traction member 5 to open or close the hoistway 7.1, for example:
方式一、如图1和图2所示，转动件3.1为链轮，牵引件5为链条，链条的一端与盖板1连接，链条的另一端固定在平台7上。其中，链条可直接固定在平台7上，也可以通过支撑立板8固定在平台7上。以链条通过支撑立板8固定在平台7上为例，此时支撑立板8固定在平台7上，链条的一端与盖板1连接，链条的另一个固定在支撑立板8上。由此，当电机2启动时，链轮随之转动，随着链条与链轮不断啮合，链条位于盖板1与链轮之间的长度减小或增大。 Method 1. As shown in Figs. 1 and 2, the rotating member 3.1 is a sprocket, the traction member 5 is a chain, one end of the chain is connected to the cover plate 1, and the other end of the chain is fixed on the platform 7. Among them, the chain can be directly fixed on the platform 7 or can be fixed on the platform 7 through a supporting vertical plate 8. Taking the chain fixed on the platform 7 through the supporting vertical plate 8 as an example, the supporting vertical plate 8 is fixed on the platform 7 at this time, one end of the chain is connected to the cover plate 1, and the other of the chain is fixed on the supporting vertical plate 8. Therefore, when the motor 2 is started, the sprocket rotates accordingly, and as the chain continuously meshes with the sprocket, the length of the chain between the cover plate 1 and the sprocket decreases or increases.
方式二、转动件3.1为卷筒，牵引件5为缆绳，缆绳的一端缠绕于卷筒，另一端与盖板1连接。当电机2启动时，卷筒随之转动，缆绳逐渐缠绕在卷筒上或者缠绕在卷筒上的缆绳逐渐松开。Method 2: The rotating member 3.1 is a reel, and the traction member 5 is a cable. One end of the cable is wound around the reel, and the other end is connected to the cover plate 1. When the motor 2 is started, the reel rotates with it, and the cable is gradually wound on the reel or the cable wound on the reel is gradually loosened.
进一步地，第一限位开关6.1和第二限位开关6.2为光电传感器。其中，光电传感器可以但不限于是槽型光电传感器或对射型光电传感器。以槽型光电传感器为例，槽型光电传感器包括基座、发射器和接收器，基座开设有凹槽，发射器和接收器分别设于凹槽的两侧。由此，如图4所示，当盖板1打开平台7的升降车通道7.1时，转动组件的触发板3.3.1恰好转 动至第一限位开关6.1的凹槽内，此时第一限位开关6.1的发射器发出的光束则被触发板3.3.1遮挡，对应的接收器接收不到发射器发出的光束，该接收器便输出一个关闭信号，电机2则根据该关闭信号停止转动。同理，当盖板1关闭平台7的升降车通道7.1时，转动组件的触发板3.3.1恰好转动至第二限位开关6.2的凹槽内，此时第二限位开关6.2的发射器发出的光束则被触发板3.3.1遮挡，对应的接收器接收不到发射器发出的光束，该接收器便输出一个关闭信号，电机2则根据该关闭信号停止转动。当然，第一限位开关6.1和第二限位开关6.2除了可以是光电传感器以外，还可以是微动开关。Further, the first limit switch 6.1 and the second limit switch 6.2 are photoelectric sensors. Among them, the photoelectric sensor can be, but is not limited to, a slot-type photoelectric sensor or a through-beam photoelectric sensor. Taking the slot-type photoelectric sensor as an example, the slot-type photoelectric sensor includes a base, a transmitter and a receiver. The base is provided with a groove, and the transmitter and the receiver are respectively arranged on both sides of the groove. Thus, as shown in Figure 4, when the cover plate 1 opens the lift car channel 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly just rotates into the groove of the first limit switch 6.1, and the first limit The light beam emitted by the transmitter of the position switch 6.1 is blocked by the trigger board 3.3.1, and the corresponding receiver cannot receive the light beam from the transmitter, the receiver outputs a shutdown signal, and the motor 2 stops rotating according to the shutdown signal. In the same way, when the cover 1 closes the lift truck channel 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly just rotates into the groove of the second limit switch 6.2, and the transmitter of the second limit switch 6.2 The emitted light beam is blocked by the trigger board 3.3.1, and the corresponding receiver cannot receive the light beam emitted by the transmitter, the receiver outputs a shutdown signal, and the motor 2 stops rotating according to the shutdown signal. Of course, the first limit switch 6.1 and the second limit switch 6.2 may be micro switches in addition to photoelectric sensors.
如图2所示，为了便于安装，该盖板组件还包括与平台7可拆卸连接的支撑立板8，固定板4与支撑立板8相对设置，电机2固定在支撑立板8背向固定板4的一侧，转动组件设于支撑立板8与固定板4之间。其中，固定板4可通过螺栓与支撑立板8固定。出厂前，工作人员可先将电机2固定在支撑立板8上，然后将转动组件安装在电机2上，接着将牵引件5绕设在转动组件上，最后通过螺栓将固定板4安装在支撑立板8上即可。由此，现场安装时，安装人员只需先将支撑立板8通过螺栓固定在平台7上，然后将牵引件5的自由端固定在盖板1上即可，整个安装过程十分便捷，大大降低了现场安装人员的工作强度、提高了安装效率。As shown in Figure 2, in order to facilitate installation, the cover assembly also includes a supporting vertical plate 8 detachably connected to the platform 7. The fixing plate 4 is arranged opposite to the supporting vertical plate 8, and the motor 2 is fixed to the supporting vertical plate 8 and fixed backwards. On one side of the plate 4, the rotating assembly is arranged between the supporting vertical plate 8 and the fixed plate 4. Among them, the fixing plate 4 can be fixed to the supporting vertical plate 8 by bolts. Before leaving the factory, the staff can fix the motor 2 on the support stand 8 first, then install the rotating assembly on the motor 2, then wrap the traction member 5 on the rotating assembly, and finally install the fixing plate 4 on the support through bolts. The vertical board 8 can be used. Therefore, during on-site installation, the installer only needs to fix the supporting vertical plate 8 on the platform 7 by bolts, and then fix the free end of the traction member 5 to the cover plate 1. The whole installation process is very convenient and greatly reduces Improve the work intensity of the on-site installers and improve the installation efficiency.
如图1和图2所示，支撑立板8临近盖板1的一侧形成有朝向盖板1的翻边8.1，翻边8.1设置有复位弹簧9，复位弹簧9位于盖板1的转动行程上。当然，支撑立板8可直接采用U型槽钢。As shown in Figures 1 and 2, the supporting vertical plate 8 is formed with a flange 8.1 facing the cover plate 1 on the side adjacent to the cover plate 1. The flange 8.1 is provided with a return spring 9, which is located in the rotation stroke of the cover plate 1. superior. Of course, U-shaped channel steel can be directly used for the supporting vertical plate 8.
在电机2驱动转动组件正转的过程中，盖板1在牵引件5的拉动下逐渐朝远离升降车通道7.1的方向转动。当盖板1的顶面触碰复位弹簧9以后，随着盖板1的继续转动，复位弹簧9被不断压缩，直至盖板1打开升降车通道7.1。由此，当电机2驱动转动组件反转时，盖板1在复位弹簧9的弹力及其自身重力的驱动下开始朝趋近升降车通道7.1的方向转动。随着盖板1的转动，当盖板1与复位弹簧9脱离接触后，盖板1则继续在自身重力的驱动下朝趋近升降车通道7.1的方向转动，直至盖板1关闭升降车通道7.1。可见，复位弹簧9能够向盖板1提供朝向升降车通道7.1转动的初始动力。During the forward rotation of the rotating assembly driven by the motor 2, the cover plate 1 is gradually rotated in a direction away from the hoistway 7.1 under the pulling of the traction member 5. When the top surface of the cover plate 1 touches the return spring 9, as the cover plate 1 continues to rotate, the return spring 9 is continuously compressed until the cover plate 1 opens the hoistway 7.1. Thus, when the motor 2 drives the rotating assembly to reverse, the cover plate 1 starts to rotate in the direction approaching the hoistway 7.1 under the drive of the elastic force of the return spring 9 and its own gravity. With the rotation of the cover plate 1, when the cover plate 1 is out of contact with the return spring 9, the cover plate 1 will continue to rotate in the direction approaching the lift car channel 7.1 under the drive of its own gravity until the cover plate 1 closes the lift car channel 7.1. It can be seen that the return spring 9 can provide the cover plate 1 with initial power to rotate toward the hoistway 7.1.
为了便于控制，该盖板组件还包括控制器10，第一限位开关6.1和第二限位开关6.2通过控制器10与电机2电连接。具体地，控制器10用于在设定时长内根据第一限位开关6.1或第二限位开关6.2的反馈信号控制电机关闭，以及在设定时长内未接收到第一限位开关6.1和第二限位开关6.2的反馈信号的情况下控制电机关闭。其中，设定时长优选为4～7秒。In order to facilitate control, the cover assembly further includes a controller 10, and the first limit switch 6.1 and the second limit switch 6.2 are electrically connected to the motor 2 through the controller 10. Specifically, the controller 10 is used to control the motor to turn off according to the feedback signal of the first limit switch 6.1 or the second limit switch 6.2 within a set time, and the first limit switch 6.1 and the first limit switch 6.1 and 6.2 are not received within the set time. The feedback signal of the second limit switch 6.2 controls the motor to turn off. Among them, the setting time is preferably 4 to 7 seconds.
由此，当电机2启动并正转时，转动组件在电机2的驱动下随之正转，盖板1在牵引件5的拉动下逐渐朝远离升降车通道7.1的方向转动。当盖板1打开平台7的升降车通道7.1时，转动组件的触发板3.3.1触发第一限位开关6.1，控制器10根据接收到的第一限位开关6.1发送的反馈信号控制电机2关闭，此时盖板1不再转动即保持在打开状态。当电机2启动并反转时，转动组件在电机2的驱动下随之反转，盖板1在自身重力驱动下逐渐朝趋近升降车通道7.1的方向转动。当盖板1关闭平台7的升降车通道7.1时，转动组件的触发板3.3.1触发第二限位开关6.2。控制器10根据接收到的第二限位开关6.2发送的反馈信号控制电机2关闭，此时盖板1不再转动即保持在关闭状态。Thus, when the motor 2 starts and rotates forward, the rotating assembly is driven by the motor 2 to rotate forward, and the cover plate 1 gradually rotates away from the hoistway 7.1 under the pulling of the traction member 5. When the cover 1 opens the hoistway 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly triggers the first limit switch 6.1, and the controller 10 controls the motor 2 according to the received feedback signal sent by the first limit switch 6.1 Closed, at this time, the cover 1 will remain in the open state without rotating. When the motor 2 starts and reverses, the rotating assembly is driven by the motor 2 to reverse, and the cover plate 1 gradually rotates toward the hoistway 7.1 under the drive of its own gravity. When the cover plate 1 closes the hoistway 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly triggers the second limit switch 6.2. The controller 10 controls the motor 2 to turn off according to the received feedback signal sent by the second limit switch 6.2. At this time, the cover plate 1 no longer rotates and remains in the closed state.
若在设定时长内控制器10未接收到第一限位开关6.1和第二限位开关6.2的反馈信号，则说明第一限位开关6.1或第二限位开关6.2发生故障了，此时控制器10直接控制电机2关闭，以避免盖板1过度开启或关闭，进而损坏电机2和盖板1。If the controller 10 does not receive the feedback signals of the first limit switch 6.1 and the second limit switch 6.2 within the set time, it means that the first limit switch 6.1 or the second limit switch 6.2 has failed. The controller 10 directly controls the closing of the motor 2 to prevent the cover 1 from being opened or closed excessively, thereby damaging the motor 2 and the cover 1.
当然除了采用设定时长的方式确定第一限位开关6.1或第二限位开关6.2是否故障以外，还可以采用以下方式：Of course, in addition to determining whether the first limit switch 6.1 or the second limit switch 6.2 is faulty by setting the time length, the following methods can also be used:
该盖板组件还包括与控制器10电连接的报警器，第一限位开关6.1和第二限位开关6.2为常闭开关，控制器10用于未接收到第一限位开关6.1和第二限位开关6.2的反馈信号的情况下控制电机关闭、并控制报警器启动。由于第一限位开关6.1和第二限位开关6.2为常闭开关，因此在未被触发的情况下第一限位开关6.1和第二限位开关6.2均保持连通，而当转动组件的触发板3.3.1触发第一限位开关6.1或第二限位开关6.2时其断开、并发送反馈信号给控制器10，也就是说，正常状态下第一限位开关6.1和第二限位开关6.2中至少有一个是接通的，控制器10最多只能接收到一个反馈信号，从而当控制器10同时接收到第一限位开关6.1和第二限 位开关6.2的反馈信号时，说明第一限位开关6.1和第二限位开关6.2均断开了，两者之中至少有一个发生故障了，此时控制器10直接控制电机2关闭，并启动报警器。The cover plate assembly also includes an alarm that is electrically connected to the controller 10. The first limit switch 6.1 and the second limit switch 6.2 are normally closed switches, and the controller 10 is used for not receiving the first limit switch 6.1 and the first limit switch 6.1 and the first limit switch 6.2. In the case of the feedback signal of the second limit switch 6.2, it controls the motor to turn off and controls the alarm to start. Since the first limit switch 6.1 and the second limit switch 6.2 are normally closed switches, both the first limit switch 6.1 and the second limit switch 6.2 remain connected when they are not triggered. When the board 3.3.1 triggers the first limit switch 6.1 or the second limit switch 6.2, it turns off and sends a feedback signal to the controller 10, that is to say, the first limit switch 6.1 and the second limit switch in the normal state At least one of the switches 6.2 is turned on, and the controller 10 can only receive at most one feedback signal, so when the controller 10 receives the feedback signals of the first limit switch 6.1 and the second limit switch 6.2 at the same time, it is explained The first limit switch 6.1 and the second limit switch 6.2 are both disconnected, and at least one of the two has a fault. At this time, the controller 10 directly controls the motor 2 to turn off and activates the alarm.
再结合图7和图8所示，本发明实施例还提供了一种免爬器，该免爬器包括升降车11、轨道13以及免爬器的盖板组件，平台7的升降车通道7.1的上下两侧均设有磁感应传感器组，磁感应传感器组设置在塔筒的爬梯12上，磁感应传感器组包括由上至下依次设置的第一磁感应传感器14.1和第二磁感应传感器14.2，第一磁感应传感器14.1和第二磁感应传感器14.2均与控制器10电连接，升降车11设有与第一磁感应传感器14.1和第二磁感应传感器14.2感应的磁性件。此处所说的磁性件是指由过渡元素铁、钴、镍及其合金等能够直接或间接产生磁性的物质。例如，磁性件可以但不限于是磁铁或电磁线圈。7 and 8, the embodiment of the present invention also provides a climbing-free device, the climbing-free device includes a lift truck 11, a track 13, and a cover assembly of the climb-free device, and the lift truck channel 7.1 of the platform 7 The upper and lower sides are equipped with magnetic induction sensor groups, the magnetic induction sensor group is arranged on the climbing ladder 12 of the tower, the magnetic induction sensor group includes a first magnetic induction sensor 14.1 and a second magnetic induction sensor 14.2 arranged in sequence from top to bottom, the first magnetic induction sensor Both 14.1 and the second magnetic induction sensor 14.2 are electrically connected to the controller 10, and the lift truck 11 is provided with a magnetic component that is inductive to the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2. The magnetic material mentioned here refers to a substance that can directly or indirectly generate magnetism from transition elements such as iron, cobalt, nickel and their alloys. For example, the magnetic member can be, but is not limited to, a magnet or an electromagnetic coil.
进一步地，如图9所示，塔筒的爬梯12上还设有免爬器控制箱15，免爬器控制箱15与控制器10电连接。这样设置的好处在于，通过免爬器控制箱15向控制器10直接供电，可保证工作人员使用免爬器时只要给免爬器控制箱15通电，控制器10同时也有电，避免了工作人员忘记给控制器10通电的情况发生。如图10所示，控制器10包括控制板和继电器，第一限位开关6.1、第二限位开关6.2、第一磁感应传感器14.1和第二磁感应传感器14.2均与控制板的输入端电连接，控制板的输出端通过继电器与电机2电连接。Further, as shown in FIG. 9, the climbing ladder 12 of the tower is also provided with a climbing-free device control box 15, and the climbing-free device control box 15 is electrically connected to the controller 10. The advantage of this arrangement is that the direct power supply to the controller 10 through the climb-free control box 15 can ensure that when the staff use the climb-free control box 15, the controller 10 also has electricity, which avoids the staff. The situation where the controller 10 is forgotten to be energized occurs. As shown in Figure 10, the controller 10 includes a control board and a relay. The first limit switch 6.1, the second limit switch 6.2, the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 are all electrically connected to the input terminal of the control board. The output terminal of the control board is electrically connected to the motor 2 through a relay.
由于升降车11设有磁性件，因此在升降车11位于平台7的上方的情形下，当升降车11向下移动、并经过位于升降车通道7.1上方的磁感应传感器组时，升降车11先触发该磁感应传感器组中的第一磁感应传感器14.1，然后再触发第二磁感应传感器14.2。此时，控制板接收到第一磁感应传感器14.1的反馈信号先于接收到第二磁感应传感器14.2的反馈信号，控制板根据接收第一磁感应传感器14.1和第二磁感应传感器14.2反馈信号的先后顺序，便可确定出此时升降车11向下移动即朝向盖板1移动。由此，控制板通过继电器控制电机2正转，随着转动组件的不断正转，盖板1在牵引件5的拉动下逐渐朝远离升降车通道7.1的方向转动。当盖板1打开平台7的升降车通道7.1时，转动组件的触发板3.3.1恰好转动至第一限位 开关6.1所在的位置，并触发第一限位开关6.1。此时，控制板根据接收到的第一限位开关6.1的反馈信号控制继电器断开，进而使电机2停机，盖板1不再转动即保持在打开状态。Since the lift truck 11 is provided with magnetic parts, when the lift truck 11 is located above the platform 7, when the lift truck 11 moves down and passes the magnetic induction sensor group located above the lift truck channel 7.1, the lift truck 11 triggers first The first magnetic induction sensor 14.1 in the magnetic induction sensor group, and then the second magnetic induction sensor 14.2 is triggered. At this time, the control board receives the feedback signal of the first magnetic induction sensor 14.1 before receiving the feedback signal of the second magnetic induction sensor 14.2. The control board receives the feedback signal of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 according to the sequence of receiving the feedback signals of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 It can be determined that the lift truck 11 moves downward, that is, moves toward the cover plate 1 at this time. As a result, the control board controls the forward rotation of the motor 2 through the relay, and as the rotating assembly continues to rotate forward, the cover plate 1 is gradually rotated in a direction away from the hoistway 7.1 under the pulling of the traction member 5. When the cover plate 1 opens the lift truck channel 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly just rotates to the position where the first limit switch 6.1 is located, and triggers the first limit switch 6.1. At this time, the control board controls the relay to be turned off according to the received feedback signal of the first limit switch 6.1, so that the motor 2 is stopped, and the cover 1 no longer rotates and remains in the open state.
升降车11通过平台7的升降车通道7.1后，继续向下移动。当升降车11经过位于升降车通道7.1下方的磁感应传感器组时，升降车11先触发该磁感应传感器组中的第一磁感应传感器14.1，然后再触发第二磁感应传感器14.2。此时，控制板接收到第一磁感应传感器14.1的反馈信号先于接收到第二磁感应传感器14.2的反馈信号，控制板根据接收第一磁感应传感器14.1和第二磁感应传感器14.2反馈信号的先后顺序，便可确定出此时升降车11向下移动即远离盖板1移动。由此，控制板通过继电器控制电机2反转，盖板1在自身重力驱动下逐渐朝趋近升降车通道7.1的方向转动。当盖板1关闭平台7的升降车通道7.1时，转动组件的触发板3.3.1恰好转动至第二限位开关6.2所在的位置，并触发第二限位开关6.2。此时，控制板就会根据接收到的第二限位开关6.2的反馈信号控制继电器断开，进而使电机2停机，盖板1不再转动即保持在关闭状态。After the lift truck 11 passes through the lift truck channel 7.1 of the platform 7, it continues to move downward. When the elevator car 11 passes the magnetic induction sensor group located under the elevator car channel 7.1, the elevator car 11 first triggers the first magnetic induction sensor 14.1 in the magnetic induction sensor group, and then triggers the second magnetic induction sensor 14.2. At this time, the control board receives the feedback signal of the first magnetic induction sensor 14.1 before receiving the feedback signal of the second magnetic induction sensor 14.2. The control board receives the feedback signal of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 according to the sequence of receiving the feedback signals of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 It can be determined that the lift truck 11 moves downward, that is, moves away from the cover plate 1 at this time. As a result, the control board controls the motor 2 to reverse through the relay, and the cover plate 1 gradually rotates toward the hoistway 7.1 under the drive of its own gravity. When the cover plate 1 closes the lift truck channel 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly just rotates to the position where the second limit switch 6.2 is located, and triggers the second limit switch 6.2. At this time, the control board will control the relay to turn off according to the received feedback signal of the second limit switch 6.2, so that the motor 2 will be stopped, and the cover 1 will remain in the closed state without rotating.
同理，在升降车11位于平台7的下方的情形下，当升降车11向上移动、并经过位于升降车通道7.1下方的磁感应传感器组时，升降车11先触发该磁感应传感器组中的第二磁感应传感器14.2，然后再触发第一磁感应传感器14.1。此时，控制板接收到第二磁感应传感器14.2的反馈信号先于接收到第一磁感应传感器14.1的反馈信号，控制板根据接收第一磁感应传感器14.1和第二磁感应传感器14.2反馈信号的先后顺序，便可确定出此时升降车11向上移动即朝向盖板1移动。由此，控制板通过继电器控制电机2正转，盖板1在牵引件5的拉动下逐渐朝远离升降车通道7.1的方向转动。当盖板1打开平台7的升降车通道7.1时，转动组件的触发板3.3.1触发第一限位开关6.1。控制板根据接收到的第一限位开关6.1的反馈信号控制继电器断开，进而使电机2停机，盖板1不再转动即保持在打开状态。Similarly, when the elevator car 11 is located below the platform 7, when the elevator car 11 moves upward and passes through the magnetic induction sensor group located under the elevator car channel 7.1, the elevator car 11 first triggers the second magnetic sensor group in the magnetic induction sensor group. Magnetic induction sensor 14.2, and then trigger the first magnetic induction sensor 14.1. At this time, the control board receives the feedback signal of the second magnetic induction sensor 14.2 before receiving the feedback signal of the first magnetic induction sensor 14.1. The control board receives the feedback signal of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2 according to the order in which the feedback signals are received. It can be determined that the lift truck 11 moves upward, that is, moves toward the cover plate 1 at this time. Thus, the control board controls the motor 2 to rotate forward through the relay, and the cover plate 1 gradually rotates away from the hoistway 7.1 under the pulling of the traction member 5. When the cover plate 1 opens the lift truck channel 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly triggers the first limit switch 6.1. The control board controls the relay to turn off according to the received feedback signal of the first limit switch 6.1, so that the motor 2 is stopped, and the cover 1 is kept in the open state without rotating.
升降车11通过平台7的升降车通道7.1后，继续向上移动。经过位于升降车通道7.1上方的磁感应传感器组时，升降车11先触发该磁感应传感器组中的第二磁感应传感器14.2，然后再触发第一磁感应传感器14.1。控制板根据接收第一磁感应传感器14.1和第二磁感应传感器14.2反馈信号 的先后顺序，便可确定出此时升降车11向上移动即朝远离盖板1的方向移动。由此，控制板通过继电器控制电机2反转，盖板1在自身重力驱动下逐渐朝趋近升降车通道7.1的方向转动。当盖板1关闭平台7的升降车通道7.1时，转动组件的触发板3.3.1触发第二限位开关6.2。此时，控制板根据接收到的第二限位开关6.2的反馈信号控制继电器断开，进而使电机2停机，盖板1不再转动即保持在关闭状态。After the lift truck 11 passes through the lift truck channel 7.1 of the platform 7, it continues to move upward. When passing the magnetic induction sensor group above the elevator car channel 7.1, the elevator car 11 first triggers the second magnetic induction sensor 14.2 in the magnetic induction sensor group, and then triggers the first magnetic induction sensor 14.1. According to the sequence of receiving the feedback signals of the first magnetic induction sensor 14.1 and the second magnetic induction sensor 14.2, the control board can determine that the lift truck 11 moves upward, that is, moves away from the cover plate 1 at this time. As a result, the control board controls the motor 2 to reverse through the relay, and the cover plate 1 gradually rotates toward the hoistway 7.1 under the drive of its own gravity. When the cover plate 1 closes the hoistway 7.1 of the platform 7, the trigger plate 3.3.1 of the rotating assembly triggers the second limit switch 6.2. At this time, the control board controls the relay to be turned off according to the received feedback signal of the second limit switch 6.2, so that the motor 2 is stopped, and the cover 1 is kept in the closed state without rotating.
最后应说明的是：以上实施例仅用以说明发明的技术方案，而非对其限制；尽管参照前述实施例对发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离发明各实施例技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the invention, not to limit them; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features thereof are equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the invention.

Claims (12)

  1. 一种免爬器的盖板组件，其特征在于，包括：A crawler-free cover assembly, which is characterized in that it comprises:
    盖板，可转动地设置在塔筒的平台上；The cover plate is rotatably set on the platform of the tower;
    电机，设置于所述平台；The motor is set on the platform;
    转动组件，与所述电机连接，所述转动组件绕设有牵引件，所述牵引件的自由端与所述盖板连接，所述转动组件设置有触发板；所述电机用于驱动所述转动组件转动，以使所述牵引件牵引所述盖板打开或关闭所述平台的升降车通道；The rotating assembly is connected with the motor, the rotating assembly is provided with a traction member, the free end of the traction member is connected with the cover plate, and the rotating assembly is provided with a trigger plate; the motor is used to drive the The rotating assembly rotates so that the traction member pulls the cover to open or close the lift truck channel of the platform;
    固定板，设于所述转动组件背向所述电机的一侧，固定板朝向所述转动组件的一侧设有与所述电机电连接的第一限位开关和第二限位开关，所述第一限位开关和所述第二限位开关位于所述触发板的转动行程上，所述第一限位开关和所述第二限位开关的相对位置满足：当所述盖板打开所述平台的升降车通道时，所述触发板触发所述第一限位开关；当所述盖板关闭所述平台的升降车通道时，所述触发板触发所述第二限位开关。The fixed plate is arranged on the side of the rotating assembly facing away from the motor, and the side of the fixed plate facing the rotating assembly is provided with a first limit switch and a second limit switch electrically connected to the motor, so The first limit switch and the second limit switch are located on the rotation stroke of the trigger plate, and the relative position of the first limit switch and the second limit switch satisfies: when the cover is opened When the elevator car channel of the platform is used, the trigger plate triggers the first limit switch; when the cover plate closes the elevator car channel of the platform, the trigger plate triggers the second limit switch.
  2. 根据权利要求1所述的免爬器的盖板组件，其特征在于，所述转动组件包括转动件、主动齿轮和从动齿轮，所述转动件的转轴与所述电机连接，所述主动齿轮与所述转动件同轴且相对固定设置，所述从动齿轮可转动地设置在所述固定板上，所述从动齿轮与所述主动齿轮啮合，所述从动齿轮的直径大于所述主动齿轮，所述触发板设置在所述从动齿轮上。The cover assembly of the crawler-free device according to claim 1, wherein the rotating assembly comprises a rotating part, a driving gear and a driven gear, the rotating shaft of the rotating part is connected to the motor, and the driving gear The driven gear is rotatably arranged on the fixed plate, the driven gear meshes with the driving gear, and the diameter of the driven gear is larger than the diameter of the driving gear. The driving gear, the trigger plate is arranged on the driven gear.
  3. 根据权利要求2所述的免爬器的盖板组件，其特征在于，所述转动件为链轮，所述牵引件为链条，所述链条的一端与所述盖板连接，另一端固定在所述平台上。The cover assembly of claim 2, wherein the rotating member is a sprocket, the traction member is a chain, one end of the chain is connected to the cover plate, and the other end is fixed to On the platform.
  4. 根据权利要求2所述的免爬器的盖板组件，其特征在于，所述转动件为卷筒，所述牵引件为缆绳，所述缆绳的一端缠绕于所述卷筒，另一端与所述盖板连接。The cover assembly of the climbing-free device according to claim 2, wherein the rotating member is a drum, the traction member is a cable, one end of the cable is wound around the drum, and the other end is connected to the reel. The cover is connected.
  5. 根据权利要求1所述的免爬器的盖板组件，其特征在于，所述第一限位开关和所述第二限位开关为光电传感器。The cover assembly of the climb-free device according to claim 1, wherein the first limit switch and the second limit switch are photoelectric sensors.
  6. 根据权利要求1所述的免爬器的盖板组件，其特征在于，在所述触发板的转动行程上所述第一限位开关与所述第二限位开关之间的圆心角为90°。The cover assembly of the climbing-free device according to claim 1, wherein the central angle between the first limit switch and the second limit switch on the rotation stroke of the trigger plate is 90 °.
  7. 根据权利要求1所述的免爬器的盖板组件，其特征在于，还包括与所述平台可拆卸连接的支撑立板，所述固定板与所述支撑立板相对设置，所述电机固定在所述支撑立板背向所述固定板的一侧，所述转动组件设于所述支撑立板与所述固定板之间。The cover assembly of the climbing-free device according to claim 1, further comprising a supporting vertical plate detachably connected to the platform, the fixing plate is arranged opposite to the supporting vertical plate, and the motor is fixed On the side of the supporting vertical plate facing away from the fixed plate, the rotating assembly is arranged between the supporting vertical plate and the fixed plate.
  8. 根据权利要求7所述的免爬器的盖板组件，其特征在于，所述支撑立板临近所述盖板的一侧形成有朝向所述盖板的翻边，所述翻边设置有复位弹簧，所述复位弹簧位于所述盖板的转动行程上。The cover assembly of the climbing-free device according to claim 7, wherein the supporting vertical plate is formed with a flange facing the cover plate on a side adjacent to the cover plate, and the flange is provided with a reset A spring, the return spring is located on the rotation stroke of the cover plate.
  9. 根据权利要求1至8任一项所述的免爬器的盖板组件，其特征在于，还包括控制器，所述第一限位开关和所述第二限位开关通过所述控制器与所述电机电连接。The cover assembly of the climb-free device according to any one of claims 1 to 8, further comprising a controller, and the first limit switch and the second limit switch are connected to each other through the controller The motor is electrically connected.
  10. 根据权利要求9所述的免爬器的盖板组件，其特征在于，所述控制器用于在设定时长内根据所述第一限位开关或所述第二限位开关的反馈信号控制所述电机关闭，以及在所述设定时长内未接收到所述第一限位开关和所述第二限位开关的反馈信号的情况下控制所述电机关闭。The cover assembly of the climb-free device according to claim 9, wherein the controller is used to control the plant according to the feedback signal of the first limit switch or the second limit switch within a set time period. The motor is turned off, and the motor is controlled to be turned off if the feedback signals of the first limit switch and the second limit switch are not received within the set time period.
  11. 根据权利要求9所述的免爬器的盖板组件，其特征在于，还包括与所述控制器电连接的报警器，所述第一限位开关和所述第二限位开关为常闭开关，所述控制器用于同时接收到所述第一限位开关和所述第二限位开关的反馈信号的情况下控制所述电机关闭、并控制所述报警器启动。The cover assembly of the climb-free device according to claim 9, further comprising an alarm electrically connected to the controller, and the first limit switch and the second limit switch are normally closed A switch, the controller is used to control the motor to turn off and to control the alarm to start when receiving feedback signals from the first limit switch and the second limit switch at the same time.
  12. 一种免爬器，包括升降车，其特征在于，还包括如权利要求9所述的免爬器的盖板组件，所述平台的升降车通道的上下两侧均设有磁感应传感器组，所述磁感应传感器组设置在塔筒的爬梯上，所述磁感应传感器组包括由上至下依次设置的第一磁感应传感器和第二磁感应传感器，所述第一磁感应传感器和所述第二磁感应传感器均与所述控制器电连接，所述升降车设有与所述第一磁感应传感器和所述第二磁感应传感器感应的磁性件。A crawler-free device, comprising a lift truck, characterized in that it further comprises the cover plate assembly of the crawler-free device according to claim 9, and the upper and lower sides of the lift truck channel of the platform are provided with magnetic induction sensor groups, so The magnetic induction sensor group is arranged on the climbing ladder of the tower, the magnetic induction sensor group includes a first magnetic induction sensor and a second magnetic induction sensor arranged in sequence from top to bottom, and the first magnetic induction sensor and the second magnetic induction sensor are both connected to The controller is electrically connected, and the lift truck is provided with a magnetic component that is inductive with the first magnetic induction sensor and the second magnetic induction sensor.
PCT/CN2020/081286 2020-02-25 2020-03-26 Cover plate assembly for climb-free lift, and climb-free lift WO2021168959A1 (en)

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