CN209411538U - A kind of building hoist automatic driving control system - Google Patents

Abstract

The utility model discloses a kind of wireless remote control type building hoist automatic driving control systems, belong to intelligent building field.It includes frequency converter, controller, leveling sensing device, height calibration device, radio receiving transmitting module and calling device in cage；Frequency converter, controller, leveling sensing device, radio receiving transmitting module is mounted on elevator craning cage in cage, and calling device is mounted on each layer of building at elevator doorway；Leveling sensing device, height calibration device, frequency converter are communicated to connect with controller respectively, and calling device is built-in to call radio receiving transmitting module, and calling radio receiving transmitting module is communicated by radio receiving transmitting module in cage with controller, the motor connection of frequency converter and elevator.The utility model can solve the problem of building hoist cannot achieve really unmanned manipulation when operation in the prior art, be conducive to save human cost, and integration degree is high, manufacturing cost is lower.

Description

A kind of building hoist automatic driving control system

Technical field

The utility model belongs to control field of construction hoist, uses wireless remote control mode more specifically to a kind of Make the control technology more particularly to a kind of building hoist automatic driving control system of building hoist intelligent operation.

Background technique

Building hoist refers mainly to passenger-goods lift for building, is mainly used for construction site, for transporting personnel and material to respectively The vertical transport equipment of a floor, belongs to special equipment.Demand with market to building hoist is increasing, and people are to liter The performance of drop machine, efficiency, reliable etc. requirement are also higher and higher.

Each floor extension set of existing automatic Pilot building hoist technology is all made of wired layout, and this mode installs effect Rate is low, and maintenance is also inconvenient, while also increasing communication cable cost.

Application No. is 2017217420822, patent name is the Chinese patent of " a kind of intelligent driving electric control system " A kind of intelligent driving electric control system is disclosed, for the intelligent control of building hoist, can satisfy unpiloted item Part, but it has problems in that the operation of elevator and stop need to rely on the auxiliary of video monitoring apparatus, that is to say, that The operating status that people supervises elevator in real time before monitoring device is needed remain for, when the stop of elevator is not in place, Personnel are needed to pass through intercom call to adjust the stop position of elevator, not only whole system cost of implementation is high, nor Conducive to saving human cost.In this regard, it is necessary to propose a kind of effective solution method.

Summary of the invention

1. to solve the problems, such as

Control for existing elevator uses the problems such as wire communication bring is at high cost, manual operation is inconvenient, this reality A kind of wireless type automatic Pilot building hoist control technology is provided with novel.

2. technical solution

To solve the above-mentioned problems, technical solution used by the utility model is as follows: a kind of building hoist is driven automatically Sail radio receiving transmitting module and calling in control system, including frequency converter, controller, leveling sensing device, height calibration device, cage Device；The frequency converter, controller, leveling sensing device, radio receiving transmitting module is mounted on elevator craning cage in cage, described to call together It calls out device and is mounted on each layer of building at elevator doorway；The leveling sensing device, height calibration device, frequency converter point It is not communicated to connect with controller, calling device is built-in to call radio receiving transmitting module, and calling radio receiving transmitting module passes through wireless in cage Transceiver module is communicated with controller, the motor connection of the frequency converter and elevator；The height calibration device includes close opens It closes, calibration sensor block, the calibration sensor block is mounted on the guide rail of elevator liftway, described close to switch installation It is described to detect calibration sensor block close to switch when elevator is run to calibration induction iron block on the cage of elevator. On the position that some height that elevator guide rails are arranged in calibration induction iron block is fixed, when elevator craning cage is close to calibration induction iron When block, a low and high level conversion signal is exported close to switch and gives integrated variable frequency device, integrated variable frequency device will be by triggering moment Story height and user first pass through in advance station setting height compare, if there is error is just calibrated；It can solve Certainly because of bad environments, abnormity of power supply that may be present fluctuation, electromagnetic interference bring are high in the application environment of the utility model Spend detection error the problem of, it is ensured that elevator stop position it is accurate.By wireless communication can between calling device and frequency converter It is enough effectively to solve the problems, such as to control elevator lifting by long cable in the prior art, and do not need configuration monitoring dress It sets, saves human cost, while also more secure and reliable.

Further, the leveling sensing device includes driven gear, connecting shaft, incremental encoder, shell, the increment Encoder is located in shell, and the connecting shaft rotationally penetrates in shell, and one end of connecting shaft is connect with incremental encoder, separately One end is provided with driven gear, is welded with spring in the connecting shaft, and the spring is between driven gear and outer surface of outer cover； The driven gear is engaged with the rack gear on guide rail.Since the vertical distance of rack gear is larger, when installation, can generate error, so that tooth There are bending deformations in item, with hour rack under the gravity of itself, can also occur bending and deformation；When hoistable platform is gone up and down When, when driven gear is passed through at the position of rack gear deformation, rigid power, rigid power are generated from meeting mutual extrusion between wheel and rack It can be passed in the connecting shaft being firmly connected with it by driven gear, the high-intensitive spring in connecting shaft is by rigid power When can generate deformation, to make the rigid power between driven tooth wheel and rack reduce, to reduce between driven tooth wheel and rack Friction, to reduce the loss of driven gear and rack gear；Driven gear can preferably cooperate rack movement, driven gear simultaneously The angle of rotation can be accurately transmitted, so that encoder be enable to obtain the lifting distance of hoistable platform, guarantee more accurate leveling Effect.

Further, the frequency converter, controller collection being integrally formed frequency converter.By frequency converter and controller collection at rising Come, cost can be effectively reduced.

Further, the building hoist automatic driving control system further includes limit detection device, the limit inspection Surveying device includes limit switch and limit induction block, and the limit switch and the controller communicate to connect, the limit induction Block is mounted on the upper half side door of cage door, and limit switch is mounted on the doorframe of elevator craning cage, when elevator craning cage door is beaten When on or off is closed, limit switch detects limit induction block.

Further, the limit switch is close to switch.Compared with contact travel switch commonly used in the prior art, Close to switch reliability is higher, longer life expectancy.The contact travel switch of itself and elevator itself is used in conjunction with each other, and is played Double protection.

Further, the building hoist automatic driving control system further includes braking resistor box, the braking resistor Case is mounted on the cage of elevator, is electrically connected with the controller.

3. beneficial effect

Compared with the prior art, the utility model has the following beneficial effects:

(1) the utility model realizes the calling request of cage intelligent response, is monitored without pilot steering nor with being equipped with Device and personnel, substantially reduce cost；

(2) integration degree is high for the utility model, is not necessarily to independent PLC, effectively reduces cost；

(3) each floor calling device structure of the utility model is independent, connects between calling device without cable, and device uses All-sealed structure, effectively isolation rainwater, dust, greatly improve installation effectiveness and maintenance convenience；

(4) level transducer of the utility model use elastic connection axis, significantly reduce equipment operation when equipment it Between rigid connection give equipment bring damage；

(5) radio receiving transmitting module supports rechargeable battery power supply in the cage of the utility model, disconnected in elevator external power supply It still can be with the calling signal of each floor of real-time reception after opening；

(6) the utility model controls cage zero-speed by frequency converter multi-stage speed-reducing and steadily shuts down, stop layers effect with higher Rate and preferable stop layers precision；

(7) the utility model is used close to switch limit detection device, avoids elevator after mechanical switch contact failure Malfunction, substantially increases safety；

(8) high accumulation caused by there is the utility model highly automated calibration function, elimination to be interfered because of encoder Error is conducive to improve stop layers precision and safety in operation；

(9) the utility model calling system sends calling information using ordered broadcast mode, avoid each calling device it Between wireless data conflict；

(10) the sling height data of the utility model are saved by FRAM, also can be extensive after elevator burst power-off It is multiple with current similar height value, then engagement height automatic calibration function, it can be ensured that height detection is in use always Effectively；

(11) the utility model structure is simple, and design is rationally, easily fabricated.

Detailed description of the invention

Fig. 1 is the system structure diagram of the utility model；

Fig. 2 is the principles of the present invention block diagram；

Fig. 3 is the electrical schematic diagram of the integrated variable frequency device of the utility model；

Fig. 4 is the structural schematic diagram of radio receiving transmitting module in the cage of the utility model；

Fig. 5 is the functional block diagram of radio receiving transmitting module in the cage of the utility model；

Fig. 6 is the functional block diagram of the calling radio receiving transmitting module of the utility model；

Fig. 7 is the energy supply control module schematic diagram of the utility model；

Fig. 8 is the structural schematic diagram of the control device of the utility model；

Fig. 9 is the mounting structure schematic diagram of the limit detection device of the utility model；

Figure 10 is the mounting structure schematic diagram of the height calibration device of the utility model；

Figure 11 is the structural schematic diagram of the leveling sensing device of the utility model；

Figure 12 is the perspective view of the leveling sensing device of the utility model；

Figure 13 is the mounting structure schematic diagram of the leveling sensing device of the utility model；

Figure 14 is the sling height calculation flow chart of the utility model；

Figure 15 is the automatic stop layers flow chart of the utility model；

Figure 16 is the integrated variable frequency device frequency reducing deceleration flow chart of the utility model；

Figure 17 is that the calling radio receiving transmitting module of the utility model receives and dispatches agreement flow chart；

Figure 18 is the flow chart of the calling device of the utility model.

In figure: 1: integrated variable frequency device；2: station；3: leveling sensing device；4: limit detection device；5: close to open It closes；6: braking resistor box；7: calibration induction iron block；8: calling device；21: antenna；22: wireless transmit/receive units in cage；23: loudspeaker ?；24: battery；25: display screen；26: operation handle；27: light switch；28: reset button；29: start button；210: emergency stop Button；211: electric lock；31: driven gear；32: spring connecting shaft；33: mounting bracket；34: incremental encoder；35: shell；41: Limit induction iron block；42: close to switch；43: fixed bracket.

Specific embodiment

The utility model is further described below combined with specific embodiments below.

As shown in Figure 1, a kind of wireless remote control type building hoist automatic driving control system, in every layer of installation of building There is calling device 8, calling device is arranged at the doorway of respective storey close to elevator, and integrated variable frequency device 1 and station 2 are pacified In the cage of elevator, leveling sensing device 3 is installed at the top of cage, limit detection device 4 is mounted on the door of cage Top is mounted on the calibration close to switch 5 and a certain fixed height for being mounted on elevator guide rails at the top of cage and incudes iron block 7 Height calibration device is formed, braking resistor box 6 is mounted at the top of the cage of elevator, and is electrically connected with integrated variable frequency device 1. Braking resistor box avoids one for a large amount of regenerative electric energy that the motor of elevator generates in quick docking process to be consumed Harm of the body frequency converter by regenerative electric energy, guarantee integrated variable frequency device using safe.

As shown in Fig. 2, leveling sensing device 3, height calibration device, limit detection device 4, station 2 are respectively and integrated Change frequency converter 1 to communicate to connect, calling device 8 is built-in to call radio receiving transmitting module, and calling radio receiving transmitting module passes through wireless in cage Transceiver module and integrated variable frequency device 1 communicate, and integrated variable frequency device 1 controls the motor operation of elevator.As shown in figs. 15 and 18, When user sends instruction by calling device 8, integrated variable frequency device 1 controls motor operation, integrated variable frequency after receiving instruction Device 1 and braking resistor box 6 are electrically connected.As shown in figure 18, when the calling key on calling device is pressed, calling device is sent Wireless calling information is to integrated variable frequency device 1, if calling key is persistently pressed, or is pressed repeatedly, calling device is only It is responded to pressing for the first time.As shown in figure 15, after integrated variable frequency device 1 receives the wireless calling information of calling device, The judgement of integrated variable frequency device currently has floor calling, and integrated variable frequency device first determines whether elevator allows to transport under present case Row, e.g., whether the cage door of elevator is in close state, if being in close state just allows to run, otherwise integration becomes Frequency device does not allow elevator to run.After elevator operation, integrated variable frequency device judge elevator craning cage whether close to destination layer, The floor being pressed where calling the calling device of key, if stopped after slowing down until reaching destination layer close to destination layer Machine.If needing to judge again whether elevator is allowed to run, the purpose being arranged in this way exists not yet close to destination layer In: there may be the situations that the calling key for the calling device for having multiple floors simultaneously or successively is pressed, e.g., current elevator At 5 layers, the calling key of 2 layers of calling device is pressed cage, and the calling key of subsequent 3 layers of calling device is also pressed, So, elevator in the process of running, close to before 2 layers, first will judge whether elevator meets service condition, in order to avoid at this time Elevator has rested in 3 layers and in the case that cage door has already turned on, and elevator operation causes to send safety accident.

As shown in figure 3, the integrated variable frequency device 1 of the utility model is to be integrated with the frequency converter of PLC function, integrated level is more Height effectively reduces cost, and is mainly responsible for the calculation process of external all kinds of input signals and the frequency conversion drive to lifter motor Control.The separate structure that PLC controller and frequency converter can also be used includes PLC controller and connecting with PLC controller Frequency converter, radio receiving transmitting module, leveling sensing device, station, limit detection device, height calibration device, braking in cage Resistance box is connect with PLC controller, and frequency converter is connect with braking resistor box, motor, and PLC controller is controlled by control frequency converter The operating of motor processed.

As shown in Fig. 4, Fig. 5 and Fig. 7, the radio receiving transmitting module in cage built in the inside of station 2, wireless receiving and dispatching in cage Module includes wireless transmit/receive units 22 in cage, microprocessing unit, antenna 21 in cage, and radio receiving transmitting module passes through microprocessor in cage On communication interface and integrated variable frequency device 1 communicate, the utility model use RS232 communication interface.Radio receiving transmitting module in cage It can be with external loudspeaker 23 and battery 24；Battery to radio receiving transmitting module in cage for powering, the external power cut-off the case where It is lower to guarantee being normally carried out for wireless communication.Loudspeaker 23 are mainly used for the calling request of real-time broadcasting floor, while inclined in battery capacity Also charging in time or replacement battery be may remind the user that when low.When it is implemented, can also include indicator light, for showing in cage The too low alarm of working condition and battery capacity of radio receiving transmitting module.Radio receiving transmitting module both can be by the cage of the utility model Mains-supplied can also be battery powered, and the utility model further includes Power Management Unit, and it is outer that Power Management Unit is responsible for management Power supply power supply and battery power supply are connect, in the case where alternating current power-off, is switched to and is battery powered, electrically connected in addition, being also responsible for city In the case of, to the management that battery charges, the circuit diagram of Power Management Unit is as shown in Figure 7.

As shown in Fig. 6 and Figure 17, calling device 8 is built-in to call radio receiving transmitting module, and calling wireless module includes that calling is micro- Processing unit, calling key, channel encoding unit, floor coding unit and calling wireless transmit/receive units, channel encoding unit are used In setting wireless channel, floor coding unit calls wireless receiving and dispatching mould in wireless transmit/receive units and cage for floor number to be arranged Block is communicated.In order to avoid the Communication Jamming between each calling device, as shown in figure 17, the utility model is using orderly wide The sending method broadcast, radio receiving transmitting module broadcast synchronization frame in cage, after each layer calling radio receiving transmitting module receives synchronization frame, on time Between sequencing successively this layer of overseas broadcast calling information.It is used when it is implemented, calling device 8 assembles battery.

As shown in figure 8, station 2 includes display screen 25, operation handle 26, light switch 27, reset button 28, starts and press Button 29, scram button 210, electric lock 211, operator in operation, the lifting of cage are controlled by operation handle 26, is passed through simultaneously Display screen 25 checks the real time position of cage.The utility model when necessary can be by operator by setting station Carry out someone control of the member in cage.

As shown in figure 9, limit detection device 4 includes limit induction block 41, close to switch 42, fixed bracket 43, limit is felt Answering block is limit induction iron block 41.Limit detection device 4 is mounted on the door top of cage, specifically, split with upper and lower two Cage for, pass through fixed bracket 43 close to switch 42 and be mounted on the doorframe of upper half side door, limit induction iron block 41 is installed On upper half side door, when detecting limit induction iron block 41 close to switch 42, illustrate that upper-lower door is combined, cage door is in Closed state, in this way, limit detection device 4 detect the switch state of cage door, have more using close to switch 42 Limit detection device 4 and contact type mechanical travel switch can be used cooperatively by high reliability and service life, composition limit detection Duplicate protection, it is safer.

As shown in Figure 10, height calibration device includes being mounted on and hanging close to switch 5 close to switch 5 and calibration induction iron block 7 The top of cage, calibration induction iron block 7 are mounted on guide rail, and cage is along track rise and fall.When cage is close to calibration induction iron When block 7, calibration induction iron block 7 is detected close to switch 5, exports a low and high level conversion signal to integration close to switch 5 Frequency converter 1, integrated variable frequency device 1 compare the story height of triggering moment and the pre-set height of user, if there is Error is just calibrated, and specifically, calibration induction iron block 7 is pre-installed on track, and height is fixed and known, school The pre-set height of height, that is, user of quasi- induction iron block 7, when detecting calibration induction iron block 7 close to switch 5, leveling is passed Induction device also obtains a height, this height is the height that the cage that leveling sensing device obtains is presently in, by this two A height is compared, if unanimously, illustrating that the detection data of leveling sensing device is accurate, if it is inconsistent, with The pre-set height of user calibrates leveling sensing device.The design of height calibration device can solve the utility model Because the severe and that may be present abnormity of power supply fluctuation of running environment causes the height of leveling sensing device 3 and integrated variable frequency device 1 There is the problem of error in degree detection.

As shown in Figure 11,12,13,14, it includes driven tooth that the utility model, which is mounted on the leveling sensing device 3 at the top of cage, 31, spring connecting shaft 32, incremental encoder 34 are taken turns, rack gear phase when operation, on driven gear 31 and elevator guide rails Cooperation rotation drives incremental encoder 34 to rotate by spring connecting shaft 32, and encoder rotates 34 output pulse signals and passes It is defeated by integrated variable frequency device 1, integrated variable frequency device 1 can calculate the height change of cage by detecting the signal.It is specific real Shi Shi, leveling sensing device 3 further include shell 35 to protect incremental encoder 34, can also include bracket 33 to flat Installation is fixed in layer sensing device 3.The driven gear 31 of the leveling sensing device of the utility model and the tooth of elevator guide rails Item is meshed, and when elevator uplink, 0.005 circle of the rotation of driven gear 31, count is incremented for incremental encoder 34, elevator downlink When, 0.005 circle of the rotation of driven gear 31, the counting of incremental encoder 34 subtracts 1, when being rotated one week due to driven gear 31, lifting Machine rises or falls 5 standard knot rack tooths away from rack tooth is away from being known and fixation, so the count value of single encoder 34 It is corresponding to rise or fall displacement it is known that you can get it that elevator risen or fallen is more by the count value of cumulative encoder device 34 Few distance.The level transducer of the prior art can be directly used in the leveling sensing device of the utility model.

As shown in figure 16, elevator is slowed down by the way of integrated variable frequency device three-level frequency reducing deceleration when stopping, specifically Steps are as follows:

Step 1: integrated variable frequency device is obtained elevator craning cage current location and to be stopped by leveling sensing device The distance between floor, when the value of the distance reaches setting value, integrated variable frequency device is downconverted to 25Hz, the revolving speed drop of motor Low, elevator lifting speed is slack-off；

Step 2: elevator continues to run, when elevator current location and the distance between the floor to be stopped, reach In the first step when half of involved setting value, integrated variable frequency device is downconverted to 12.5Hz, and the revolving speed of motor further decreases, and rises Drop machine lifting speed is further slack-off；

Step 3: elevator continues to run, when elevator current location and the distance between the floor to be stopped, reach In the first step when a quarter of involved setting value, integrated variable frequency device continues to be downconverted to 0.15Hz -0.3Hz, realizes lifting The speed reducing stopping of machine.

The setting value of the utility model is s=((v0+v1)/2) * t, wherein v0 is the speed before elevator frequency reducing, and v1 is Elevator be finally stopped before speed, t is runing time of the elevator before starting to mix down to final stop, and v0, v1, t can be with By user's sets itself according to the actual situation.

Schematically the utility model and embodiments thereof are described above, description is not limiting, not In the case where the spirit or essential characteristics of the utility model, the utility model can be realized in other specific forms. Shown in the drawings is also one of the embodiments of the present invention, and actual structure is not limited to this, in claim Any appended drawing reference should not limit the claims involved.So if those of ordinary skill in the art are inspired by it, In the case where not departing from this creation objective, frame mode similar with the technical solution and implementation are not inventively designed Example, should belong to the protection scope of this patent.

Claims (6)

1. a kind of building hoist automatic driving control system, it is characterised in that: including frequency converter, controller, leveling sensing dress It sets, radio receiving transmitting module and calling device in height calibration device, cage；The frequency converter, controller, leveling sensing device, cage Interior radio receiving transmitting module is mounted on elevator craning cage, and the calling device is mounted on each layer of building close to elevator doorway Place；The leveling sensing device, height calibration device, frequency converter are communicated to connect with controller respectively, the built-in calling of calling device Radio receiving transmitting module, calling radio receiving transmitting module are communicated by radio receiving transmitting module in cage with controller, the frequency converter and liter The motor of drop machine connects；The height calibration device includes close to switch, calibration sensor block, and the calibration sensor block installation is in place In on the guide rail of elevator liftway, the close switch is mounted on the cage of elevator, when elevator is run to calibration It is described to detect calibration sensor block close to switch when incuding at iron block.

2. building hoist automatic driving control system according to claim 1, it is characterised in that: the leveling sensing dress It sets including driven gear, connecting shaft, incremental encoder, shell, the incremental encoder is located in shell, and the connecting shaft can turn It penetrates in shell dynamicly, one end of connecting shaft is connect with incremental encoder, and the other end is provided with driven gear, in the connecting shaft It is welded with spring, the spring is between driven gear and outer surface of outer cover；The driven gear is engaged with the rack gear on guide rail.

3. building hoist automatic driving control system according to claim 1, it is characterised in that: the frequency converter, control Becoming one of device frequency converter processed.

4. building hoist automatic driving control system according to claim 1,2 or 3, it is characterised in that: further include limit Level detecting apparatus, the limit detection device include limit switch and limit induction block, the limit switch and the controller Communication connection, the limit induction block are mounted on the upper half side door of elevator craning cage, and limit switch is mounted on elevator craning cage Doorframe on, when elevator craning cage door opens or closes, limit switch detects that limit induction block leaves or approaches.

5. building hoist automatic driving control system according to claim 4, it is characterised in that: the limit switch is Close to switch.

6. building hoist automatic driving control system according to claim 1,2 or 3, it is characterised in that: further include system Dynamic resistance box, the braking resistor box are mounted on the cage of elevator, are electrically connected with the controller.