CN202967789U - Lift stall protection control system and lifting conveying device applying the same - Google Patents
Lift stall protection control system and lifting conveying device applying the same Download PDFInfo
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- CN202967789U CN202967789U CN 201220635747 CN201220635747U CN202967789U CN 202967789 U CN202967789 U CN 202967789U CN 201220635747 CN201220635747 CN 201220635747 CN 201220635747 U CN201220635747 U CN 201220635747U CN 202967789 U CN202967789 U CN 202967789U
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Abstract
The utility model discloses a lift stalling protection control system which is applied to a lifting conveying device. The lifting conveying device comprises a lifting table, a drive motor, a motor brake and a lift control module. The lift stalling protection control system comprises a speed testing machine, a controller, a first relay, a second relay and a power supply. The speed testing machine is connected with the controller and transmits a detected lift speed signal to the controller, and the power supply is connected with the controller and provides electricity for the controller. The controller is connected with the first relay and the second relay. The controller sends a first signal for braking the drive motor to the first relay and sends a second signal for cutting off electricity of the drive motor to the second relay according to the received lift speed signal when the lift speed reaches or exceeds a set threshold. According to the lift stalling protection control system, when a lift stalls, the motor stops running. The utility model further discloses the lifting conveying device applying the lift stalling protection control system.
Description
Technical field
The utility model relates to material lifting transportation art, is specifically related to elevator stall protection control system.The utility model relates to the lifting load transfer device of this elevator stall protection control system of a kind of application simultaneously.
Background technology
In the fields such as machinery, manufacturing, construction, often need material is transported to eminence by lower, perhaps material is transported to lower by eminence, this all need to be completed by elevator.Elevator is generally driven by motor, drives the motion of its bay-lift, completes material from high to low or transporting from low to high.
Be that CN201321324Y(is called for short document 1 at document number) Chinese patent literature in, a kind of material elevator is disclosed.Fig. 1 is the schematic diagram of described document 1 disclosed material elevator.Please refer to Fig. 1, this material elevator comprises towing machine 1, hoist ropes 2, hopper 3 and balance weight body 4.Wherein, towing machine connects hopper and balance weight body by hoist ropes, hopper and balance weight body are arranged on elevator platform, this towing machine is permanent-magnet gearless wheel towing machine, this machine is comprised of the traction sheave, DC permanent-magnetic brushless low-speed high-torque motor and the brake equipment that are used for the connection hoist ropes, and the mouth of DC permanent-magnetic brushless low-speed high-torque motor is connected with traction sheave.This device for transporting objects is simple in structure, uses reliable and is easy to and safeguard.But this device for transporting objects does not arrange stall protector, when meeting accident, does not prevent the measure of body feed tank high-speed falling.
Based on this, be that CN202309615U(is called for short document 2 at document number) Chinese patent literature in a kind of speed detector and blower fan tower Special lifting ladder are disclosed.In described document 2, this speed detector comprises a motor, and motor comprises a traction sheave, sensor installation on described traction sheave, and master controller detects the machine shaft rotating speed according to the signal that described sensor spreads out of.By this speed detector is set, whether extremely machine shaft can be detected.Under the rotating speed abnormal condition, send instruction, cut off the electricity supply or emergency braking, thus the article carrying platform of avoiding being connected with this motor (or bay-lift, body feed tank) high-speed falling or lifting.Described document 2 detects by the speed to motor and can avoid playing the effect of protection because motor rotates the lifting table stall that extremely causes.
Yet in actual applications, the factor that causes lifting table stall is many-sided, and described document 2 can't detect the lifting table stall that other reason except the rotating shaft rotation is abnormal causes, has in actual use certain limitation.
The utility model content
The utility model provides a kind of elevator stall protection control system, to solve the above-mentioned problem of existing elevator.The utility model provides a kind of lifting load transfer device that uses this stall protection control system in addition.
The utility model provides a kind of elevator stall protection control system, is applied to the lifting load transfer device, and this lifting load transfer device comprises bay-lift, drive motor, electromotor brake and elevator control module; Comprise: velometer, controller, the first relay, the second relay and power supply;
Described velometer is connected with described controller, and the bay-lift speed signal that detects is passed to described controller;
Described power supply is connected with described controller, to described controller power supply;
Described controller all is connected with described the first relay, the second relay; Described controller when bay-lift speed meets or exceeds the threshold value of setting, sends first signal to described the first relay, and sends secondary signal to described the second relay according to received bay-lift speed signal;
Described the first relay has the interface that is connected with described electromotor brake, controls the described drive motor of electromotor brake braking after connecting under described first signal effect;
Described the second relay has the interface that is connected with described elevator control module, sends to described elevator control module the signal that motor-driven stops after connecting under described secondary signal effect.
Optionally, described velometer is a kind of in radar speedometer, laser velocimeter device, grating velometer, Electromagnetically inductive speedometer and bar code velometer.
Optionally, described velometer is Electromagnetically inductive speedometer, comprises being arranged at Hall element and the magnet or the electromagnet grid that are arranged on upright post of elevator on described bay-lift; Described Hall element is connected with described controller.
Optionally, also comprise reset circuit, described reset circuit is connected with the second relay with described the first relay respectively, controls described the first relay and the second relay and resets.
Optionally, also comprise reset circuit, described reset circuit is connected with described controller, resets by described controller described the first relay of control and the second relay.
Optionally, described controller is programmable logic device (PLD).
Optionally, described controller has the interface that is connected with described elevator control module, connects backward described elevator control module and sends bay-lift speed and position signal.
Optionally, described connection controller and described elevator control module connecting interface are a kind of in Profibus, DeviceNet, Profinet, cclink and Modbus.
Optionally, described velometer comprises two tachogenerators, and one of them is detecting sensor, and another is check sensor.
The utility model also provides a kind of lifting load transfer device, comprising: bay-lift, drive motor, electromotor brake and elevator control module and the described elevator stall protection of above-mentioned arbitrary technical scheme control system.
Compared with prior art; the utlity model has following advantage: the detector that elevator stall protection set-up of control system of the present utility model has pair bay-lift speed to detect; can know the velocity information of this bay-lift by this detector; the bay-lift stall that causes for any reason; all can directly know; and control the drive motor braking and stop by controller; this system can guarantee that elevator has the failure-free stall protection; can in time send the signal cut braking circuit when elevator stall; the drg braking makes motor out of service.
Description of drawings
Fig. 1 is the schematic diagram of background technology Literature 1 disclosed material elevator;
Fig. 2 is one of the elevator stall protection control system of the utility model embodiment and schematic diagram of linking together with other parts of elevator thereof;
Fig. 3 is two of the elevator stall protection control system of the utility model embodiment and the schematic diagram that links together with other parts of elevator thereof;
Fig. 4 is three of the elevator stall protection control system of the utility model embodiment and the schematic diagram that links together with other parts of elevator thereof;
Fig. 5 is four of the elevator stall protection control system of the utility model embodiment and the schematic diagram that links together with other parts of elevator thereof;
Fig. 6 is the schematic diagram of the lifting load transfer device of application of the present utility model embodiment control system of the present utility model;
Fig. 7 is the front view of Turbogrid plates that is applied to the elevator stall protection control system of the utility model embodiment;
Fig. 8 is the left view of Turbogrid plates that is applied to the elevator stall protection control system of the utility model embodiment.
Description of reference numerals:
1, towing machine 2, hoist ropes 3, hopper 4, balance weight body 5, axle drive shaft 6, bay-lift 7, column 8, clump weight 9, Turbogrid plates 10, hoist ropes 11, controller 12, velometer 13, power supply 9-1, grid 12a, Hall element 14, reset circuit 100, elevator stall protection control system 200, electromotor brake 300, elevator control module 400, frequency converter 500, drive motor K1, the first relay K 2, the second relay
The specific embodiment
A lot of details have been set forth in the following description so that fully understand the utility model.But the utility model can be implemented much to be different from alternate manner described here, and those skilled in the art can be in the situation that do similar popularization without prejudice to the utility model intension, so the utility model is not subjected to the restriction of following public concrete enforcement.
In embodiment of the present utility model; a kind of elevator stall protection control system has been proposed; this protection system detects by the direct rising or falling speed to the lifting table of elevator; and send control signal lifting table stall (be rising or falling speed greater than the threshold value set time) being detected, stop the driving lifting table to lifting table.Compared to existing detecting device to elevator stall, the scheme of the present embodiment can detect the situation of the lifting table stall that non-drive motor rotating speed causes extremely, and can take measures, the braking drive motor, safety misadventure be can effectively avoid, elevator Operation safety and stability improved.Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
Please refer to Fig. 2, one of schematic diagram that it links together for the elevator stall protection control system of the utility model embodiment and with other parts of elevator.
Elevator, also referred to as the lifting load transfer device, it comprises a bay-lift, drive motor, the brake equipment (also can be described as drg) of drive motor and the elevator control module that this elevator lifting table is controlled at least.Its structure can be with reference to accompanying drawing 6, and bay-lift 6 is connected with an end of hoist ropes 10, and hoist ropes 10 is walked around the axle drive shaft 5 of drive motor, and the other end is connected with clump weight 8.On some explained hereafter conveyor line, this hoist ropes 10 is substituted by chain.For example, be applied to the bearing-type elevator on the wagon manufacturing line, what wherein connect bay-lift and clump weight is the carrying chain.No matter be hoist ropes or carrying chain, its basic effect is identical, namely transmits the power of drive motor, and traction bay-lift up-and-down movement realizes that bay-lift is to the transportation of material.Elevator control module (scheming not shown) is connected with drive motor by frequency converter, controls the operation of drive motor and stops, and guaranteeing the flatness of operation.Brake equipment is arranged on drive motor, is used for motor braking.The elevator control module can be programmable logic device (PLD).Fig. 6 is for the rough schematic view of elevator principle of work being described, also being provided with other accessory on elevator, such as control housing, support frame and the pulley etc. that changes the power transmission direction, will not enumerate here.In addition, elevator can also have other various distressed structures, those skilled in the art can according to the instruction of this specification sheets with the stall protection control system of the present embodiment in corresponding elevator.
Please continue with reference to figure 2, the elevator stall protection control system 100 of the present embodiment comprises velometer 12, controller 11, the first relay K 1, the second relay K 2 and power supply 13.
Described power supply 13 is connected with described controller 11, is used for to described controller power supply.This power supply 13 is direct supply, and it can be the equipment such as the chemical energy storage such as battery, storage battery, also can be obtained by AC transformation by the AC-DC voltage transformer.
Described velometer 12 is connected with described controller 11, for the rising or falling speed of the bay-lift that obtains described elevator, and this speed signal is passed to described controller.
Described velometer 12 can be variously can complete the equipment that tests the speed, and can be for example a kind of in radar speedometer, laser velocimeter device, grating velometer, Electromagnetically inductive speedometer and bar code velometer.When described velometer 12 is radar speedometer or laser velocimeter device, can be arranged on the pedestal of described bay-lift bottom.
Described velometer 12 is Electromagnetically inductive speedometer specifically in the present embodiment.This Electromagnetically inductive speedometer comprises Hall element and magnet or electromagnet grid.Described Hall element 12a is arranged on the bay-lift of elevator, bay-lift side for example, and as shown in Figure 6, described magnet or electromagnet grid are arranged on the column 7 of described bay-lift side.Described grid can directly be arranged on column 7, also grid 9-1 can be arranged on the platy structure as shown in Fig. 7 and 8, consists of Turbogrid plates, and these Turbogrid plates 9 are fixed on described column 7.When using this battery induction velometer and testing the speed, bay-lift drives the Hall element 12a motion that arranges thereon when motion, when Hall element 12a process magnet or electromagnet grid, can be because electromagnetic induction produce a series of impulse singla, the frequency of this impulse singla namely is directly proportional to the kinematic velocity of described bay-lift.Collect this impulse singla, and the analyzer frequency can obtain the speed of bay-lift.
Described velometer 12 can also have other form, and any speed measuring equipment that can obtain the bay-lift linear velocity all can be applicable to this.
Please continue with reference to figure 2, described controller 11 is programmable logic device (PLD) in the present embodiment, accept to calculate after the tachometer signal (routine impulse singla described above) of velometer 12 transmissions at it, calculate the rising or falling speed of this bay-lift, and compare with the speed limit (being threshold value) of setting.When the speed that calculates does not meet or exceed setting threshold, continue to carry out the detection to bay-lift speed.When the speed that calculates meets or exceeds setting threshold, namely send control signal, control and be attached thereto the first relay K 1 and the second relay K 2 actions that connect.Particularly, described controller 11 sends first signal to described the first relay K 1, sends secondary signal to described the second relay K 2.
Described the first relay K 1 has the interface that is connected with described electromotor brake 200.During work, it is connected with described electromotor brake 200.After described the first relay K 1 is accepted first signal, transfer state of a control to by its initial condition under the first signal effect, control is attached thereto the 200 pairs of drive motor 500 of electromotor brake that connect and brakes.
Described the second relay K 2 has the interface that described elevator control module 300 is connected.During work, it is connected with described elevator control module 300.After described the second relay K 2 is accepted secondary signal, transfer state of a control to by initial shape body under the secondary signal effect, be programmable logic device (PLD) in described elevator control module 300(the present embodiment, PLC) send instruction, control frequency converters 400 by elevator control module 300 and stop driving to drive motor 500, and disconnect the electromotor brake circuit, to motor braking.
By above-mentioned two paths of signals effect, to the drive motor braking, outage, stop motor-driven on the one hand, guarantees that motor can stop as early as possible on the one hand.
The detector that the elevator stall protection set-up of control system of above-described embodiment of the present utility model has pair bay-lift speed to detect; can know the velocity information of this bay-lift by this detector; the bay-lift stall that causes for any reason; all can directly know; and control the drive motor braking and stop by controller; this system can guarantee that elevator has the failure-free stall protection; can in time send the signal cut braking circuit when elevator stall; make motor out of service, the drg braking.
In the other embodiment of stall protection control system of the present utility model; also include reset circuit 14; as shown in Figure 4 and Figure 5; in Fig. 3; described reset circuit 14 is connected with the second relay K 2 respectively at described the first relay K 1, is used for controlling described the first relay K 1 and the second relay K 2 is reset to initial condition.That is to say, must just can make two relay recovery normal conditions by the reset circuit of connecting the stall controller after the stall fault occurring, otherwise elevator is in braking and off-position always, can't start, and guarantees only could recover normal operation with this after the maintainer processes.In described accompanying drawing 4, described reset circuit 14 is connected with described controller 11, controls two relays by controller 11 and resets.
In addition; in the other embodiment of stall protection control system of the present utility model; as shown in Figure 5; described controller 11 also is provided with the interface that is connected with elevator control module 300; can be connected with described elevator control module 300 by the bus cable; elevator control module 300 can obtain real-time speed and the location information of bay-lift by controller 11, thereby is convenient to the bay-lift Real Time Monitoring.Described interface is a kind of in Profibus, DeviceNet, Profinet, cclink and Modbus.
In the other embodiment of stall protection control system of the present utility model, described velometer 12 includes two sensors, and one of them can be detecting sensor two sensors, and another is check sensor.The two paths of signals of two tachogenerators is transferred to respectively described controller 11, processed by 11 pairs of two paths of signals of controller, when the result of any one sensor measurement was bay-lift stall, controller 11 namely sent control signal, and braking motor also cuts off the power supply to motor.Thereby guaranteed the speed signal of bay-lift also can normally be detected when a certain sensor damages or do not work.
Although the utility model with preferred embodiment openly as above; but it is not to limit the utility model; any those skilled in the art are not within breaking away from spirit and scope of the present utility model; can make possible change and modification, therefore protection domain of the present utility model should be as the criterion with the scope that the utility model claim is defined.
Claims (10)
1. an elevator stall protection control system, be applied to the lifting load transfer device, and this lifting load transfer device comprises bay-lift, drive motor, electromotor brake and elevator control module; It is characterized in that comprising: velometer, controller, the first relay, the second relay and power supply;
Described velometer is connected with described controller, and the bay-lift speed signal that detects is passed to described controller;
Described power supply is connected with described controller, to described controller power supply;
Described controller all is connected with described the first relay, the second relay; Described controller when bay-lift speed meets or exceeds the threshold value of setting, sends first signal to described the first relay, and sends secondary signal to described the second relay according to received bay-lift speed signal;
Described the first relay has the interface that is connected with described electromotor brake, controls the described drive motor of electromotor brake braking after connecting under described first signal effect;
Described the second relay has the interface that is connected with described elevator control module, sends to described elevator control module the signal that motor-driven stops after connecting under described secondary signal effect.
2. elevator stall protection control system according to claim 1, is characterized in that, described velometer is a kind of in radar speedometer, laser velocimeter device, grating velometer, Electromagnetically inductive speedometer and bar code velometer.
3. elevator stall protection control system according to claim 1, is characterized in that, described velometer is Electromagnetically inductive speedometer, comprises being arranged at Hall element and the magnet or the electromagnet grid that are arranged on upright post of elevator on described bay-lift; Described Hall element is connected with described controller.
4. elevator stall protection control system according to claim 1, is characterized in that, also comprises reset circuit, and described reset circuit is connected with the second relay with described the first relay respectively, controls described the first relay and the second relay and reset.
5. elevator stall protection control system according to claim 1, is characterized in that, also comprises reset circuit, and described reset circuit is connected with described controller, resets by described controller described the first relay of control and the second relay.
According to claim 1 to 5 arbitrary described elevator stall protection control system, it is characterized in that, described controller is programmable logic device (PLD).
7. elevator stall protection control system according to claim 1, is characterized in that, described controller has the interface that is connected with described elevator control module, connects backward described elevator control module and send bay-lift speed and position signal.
8. elevator stall protection control system according to claim 7, is characterized in that, described connection controller and described elevator control module connecting interface are a kind of in Profibus, DeviceNet, Profinet, cclink and Modbus.
9. elevator stall protection control system according to claim 1, is characterized in that, described velometer comprises two tachogenerators, and one of them is detecting sensor, and another is check sensor.
10. a lifting load transfer device, is characterized in that comprising: the arbitrary described elevator stall protection control system of bay-lift, drive motor, electromotor brake and elevator control module and the claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635747 CN202967789U (en) | 2012-11-27 | 2012-11-27 | Lift stall protection control system and lifting conveying device applying the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635747 CN202967789U (en) | 2012-11-27 | 2012-11-27 | Lift stall protection control system and lifting conveying device applying the same |
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| CN202967789U true CN202967789U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220635747 Expired - Fee Related CN202967789U (en) | 2012-11-27 | 2012-11-27 | Lift stall protection control system and lifting conveying device applying the same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407852A (en) * | 2013-08-13 | 2013-11-27 | 苏州经贸职业技术学院 | Elevator safety emergency control system |
| CN104512808A (en) * | 2013-09-30 | 2015-04-15 | 上海共久电气有限公司 | Detection method of rising stall of elevating mechanism in crane |
| CN109957954A (en) * | 2019-05-07 | 2019-07-02 | 广东好太太科技集团股份有限公司 | A uniform speed lifting clothes drying machine using electromagnetic induction for speed regulation |
| CN117859102A (en) * | 2021-06-23 | 2024-04-09 | 奥特莱德科技公司 | Motor stall and trailer lifting |
-
2012
- 2012-11-27 CN CN 201220635747 patent/CN202967789U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407852A (en) * | 2013-08-13 | 2013-11-27 | 苏州经贸职业技术学院 | Elevator safety emergency control system |
| CN103407852B (en) * | 2013-08-13 | 2015-08-05 | 苏州经贸职业技术学院 | Elevator safety emergency flight control system |
| CN104512808A (en) * | 2013-09-30 | 2015-04-15 | 上海共久电气有限公司 | Detection method of rising stall of elevating mechanism in crane |
| CN109957954A (en) * | 2019-05-07 | 2019-07-02 | 广东好太太科技集团股份有限公司 | A uniform speed lifting clothes drying machine using electromagnetic induction for speed regulation |
| CN117859102A (en) * | 2021-06-23 | 2024-04-09 | 奥特莱德科技公司 | Motor stall and trailer lifting |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20201127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |