CN2789204Y - Variable frequency driving cart cable reeling device - Google Patents
Variable frequency driving cart cable reeling device Download PDFInfo
- Publication number
- CN2789204Y CN2789204Y CN 200520040783 CN200520040783U CN2789204Y CN 2789204 Y CN2789204 Y CN 2789204Y CN 200520040783 CN200520040783 CN 200520040783 CN 200520040783 U CN200520040783 U CN 200520040783U CN 2789204 Y CN2789204 Y CN 2789204Y
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- China
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- input end
- cable reel
- mouth
- motor
- frequency converter
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- Expired - Fee Related
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Abstract
The utility model discloses a frequency conversion driving cart cable reel device which comprises a cable reel body, a mechanical transmission component and a control component, wherein the mechanical transmission component comprises a gear reduction box, a braking device and a motor, and the gear reduction box is arranged on the input end of a cable reel. The braking device is arranged on the input end of the gear reduction box, and the motor is arranged on the other end of the gear reduction box. The control component comprises a cam spacing device and a first encoder. The utility model is characterized in that the motor is a frequency conversion motor, and the control component also comprises a second encoder and a control circuit; the output end of the cam spacing device is connected with the input end of the control circuit; the output end of the first encoder and the output end of the second encoder are respectively connected with the input end of the control circuit; the output end of the control circuit is respectively connected with the input end of the braking device and the output end of the frequency conversion motor. The motor torque of the reel is arranged by the computation of the control circuit, so the traction force born by the cable is controlled and does not surpass the maximum acceptable traction force of the cable.
Description
Technical field
The utility model relates to a kind of hoisting crane technology, relates in particular to a kind of frequency conversion drive cart cable reel arrangement.
Background technology
Frequency conversion drive high speed cart cable reel arrangement is the technology of hoisting crane industry, and it is that the hoisting crane that need move for cart specially is supporting.When crane moved, the cart cable reel can be involved in or emit cable accordingly.
Tradition cart cable reel arrangement adopts permanent torque actuated mechanism, and cable is subjected to bigger power when being involved in and emit.Especially the high speed cable reel (think at present big vehicle speed 100-200 rice/minute cable reel be the high speed cable reel) time, because high-revolving cable reel has very big inertia when starting and stopping, make cable be subjected to very large pulling force, therefore easily cable is caused very big impact and injury.
Summary of the invention
The utility model is in order to solve existing high speed cable reel device causes very big impact and injury to cable when starting and stopping problem, and a kind of frequency conversion drive cart cable reel arrangement that proposes, the function unit of this cable reel arrangement can be according to the mode of operation of big mechanism of car and cable reel, the method of use frequency conversion is dynamically adjusted the torque and the rotating speed output of motor, make the speed of collecting of cable catch up with big vehicle speed, make the stressed constant in safe range of cable simultaneously, reduce the value of thrust allowable of cable.
The technical measures that the utility model is taked are:
Frequency conversion drive cart cable reel arrangement comprises the cable reel body, is located at the mechanical transmission component of reel body input end and the function unit of this mechanical transmission component action of a control;
Described mechanical transmission component comprises a gear reduction box, a drg, a motor, and described gear reduction box is located at the input end of cable reel, and described drg is located at the input end of gear reduction box; Described motor is located at another input end of gear reduction box;
Described function unit comprises a cam stop, one first coder; The input end of described cam stop is connected with the mouth of gear reduction box, and described first speed encoder is located at the mouth of big mechanism of car; It is characterized in that described motor is a variable-frequency motor; Described function unit also comprise one with mouth bonded assembly second coder and a control circuit of variable-frequency motor; The mouth of described cam stop is connected with the input end of control circuit; The mouth of described first coder and second coder is connected with the input end of control circuit respectively; The mouth of described control circuit is connected with the input end of drg and variable-frequency motor respectively.
Above-mentioned frequency conversion drive cart cable reel arrangement, wherein, described control circuit comprises a three-phase alternating-current supply circuit breaker, a frequency converter, a data handler, a load module, an output module, two communication interfaces and an one-way communication power circuit breaker and an electromagnetic contactor; Described three-phase alternating-current supply circuit breaker is connected the mouth of three-phase alternating-current supply, and described frequency converter is connected between the input end of three-phase alternating-current supply circuit breaker and motor; Described second coder is connected between frequency converter and the variable-frequency motor; The impulse singla of the input end connection speed pulse coder output of described load module and the reel inner cable lap signal of cam stop output output to data handler; Described two communication interfaces are connected to the mouth of data handler and frequency converter, and described data handler is connected by communication bus is two-way with frequency converter; The mouth of described data handler is connected with the input end of output module, and the mouth of output module is connected with the control coil of electromagnetic contactor, and the Chang Kaiduan of electromagnetic contactor is connected with the single phase alternating current power supply circuit breaker.
Above-mentioned frequency conversion drive cart cable reel arrangement, wherein, described data handler comprises a speed signal processing unit, a dish upward number of cables processing unit, a torque calculation and action control unit, communication unit and a drg control unit; Described speed signal processing unit receive crane mechanism speed after treatment the output state speed signal to torque calculation and action control unit, the information that the number of cables processing unit receives cart cable reel cam stop on the described dish after treatment on the output panel number of cables to torque calculation and action control unit; Described torque calculation and action control unit with the state speed signal that receives and number of cables signal to communication unit; Described communication unit carries out two-way connection by data bus and frequency converter, and this communication unit is also exported a control signal to the drg control unit, exports the order of a dozen open brakes to output module by the drg control unit.
Above-mentioned frequency conversion drive cart cable reel arrangement, wherein, the state speed signal of described speed signal processing unit output comprise be involved in speed signal, emit speed signal, acceleration mode signal, at the uniform velocity status signal and deceleration regime signal.
Above-mentioned frequency conversion drive cart cable reel arrangement, wherein, described data handler is made of a CPU micro controller system.
Above-mentioned frequency conversion drive cart cable reel arrangement, wherein, described data handler is made of a programmable controller.
Above-mentioned frequency conversion drive cart cable reel arrangement is characterized in that described frequency converter is a vector frequency converter.
Because the utility model has been taked above technical scheme, can be according to the position of the relative cable trough of cart, parameters such as number of cables state speed by the reel that obtains, calculate and the motor torque of given reel through control circuit, do not allow pulling force thereby the suffered pulling force of control cable does not exceed the maximum of cable.
Description of drawings
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the overall structure scheme drawing of the utility model frequency conversion drive cart cable reel arrangement.
Fig. 2 is the electrical block diagram of the control circuit of the utility model frequency conversion drive cart cable reel arrangement.
Fig. 3 is the electrical block diagram of the data processing unit in the control circuit of the utility model frequency conversion drive cart cable reel arrangement.
The specific embodiment
See also Fig. 1.The utility model frequency conversion drive cart cable reel arrangement comprises cable reel body 100, is located at the mechanical transmission component of cable reel body input end and the function unit of this mechanical transmission component action of a control.Mechanical transmission component is included in input end bonded assembly one gear reduction box 1 of cable reel, at input end bonded assembly one drg 2, of gear reduction box and the mouth bonded assembly variable-frequency motor 3 of gear reduction box 1.Function unit comprises a cam stop 4 and a control circuit 5.Variable-frequency motor 3 and 5 two-way connections of control circuit.The input end of cam stop 4 is connected with another mouth of gear reduction box 1, and its mouth is connected with the input end of control circuit 5.The mouth of control circuit 5 is connected with drg 2.
See also Fig. 2.Control circuit 5 in the utility model frequency conversion drive cart cable reel arrangement function unit comprises a three-phase alternating-current supply circuit breaker 51, a frequency converter 52, a data handler 53, a load module 54, an output module 55, two communication interfaces 56 and a single phase alternating current power supply circuit breaker 57, an electromagnetic contactor 58 and two coders (also claiming the velocity pulse coder) 59-1,59-2.Three-phase alternating-current supply circuit breaker 51 is connected the mouth of three-phase alternating-current supply; Frequency converter 52 can be selected vector frequency converter, is connected between the input end of three-phase alternating-current supply circuit breaker and motor, can realize that frequency converter itself is to the stepless adjustment of the output torque of variable-frequency motor; The input end of load module 54 connects the mouth bonded assembly velocity pulse coder 59-1 with big mechanism of car, and the reel inner cable lap signal of the impulse singla of this coder 59-1 output and cam stop output outputs to data handler 53; Two communication interface 56-1,56-2 are connected to the mouth of data handler 53 and frequency converter 52, make data handler and frequency converter by 200 two-way connections of communication bus; The mouth of data handler 53 is connected with the input end of output module 55, and the mouth of output module is connected with the control coil of electromagnetic contactor, and the Chang Kaiduan of electromagnetic contactor is connected with the single phase alternating current power supply circuit breaker; The second coder 59-2 is connected between frequency converter and the variable-frequency motor.
The utility model is adjusted the principle of work of torque:
At first variable frequency drive motors itself will dispose the tachometer pulse coder, the motor velocity signal that measures feeds back to frequency converter, when the frequency converter drive motor turned round, the relation between the continuous measurements and calculations motor speed of frequency converter, electric current, magnetic flux, the torque drew the result of calculation torque like this.
See also Fig. 3.Data handler 53 in the function unit of the utility model frequency conversion drive cart cable reel arrangement comprises a speed signal processing unit 531, a dish upward number of cables processing unit 532, a torque calculation and action control unit 533, communication unit 534 and a drg control unit 535.Wherein: the speed signal processing unit receive crane mechanism speed export after treatment comprise be involved in speed signal, emit speed signal, the acceleration mode signal, at the uniform velocity state speed signal such as status signal and deceleration regime signal is to torque calculation and action control unit; The information that the number of cables processing unit receives cart cable reel cam stop on the dish after treatment on the output panel number of cables to torque calculation and action control unit; Torque calculation and action control unit with the state speed signal that receives and number of cables signal to communication unit; Communication unit carries out two-way connection by data bus and frequency converter, and this communication unit is also exported a control signal to the drg control unit, exports the order of a dozen open brakes to output module by the drg control unit.
Data handler of the present utility model constitutes by a CPU micro controller system or by a programmable controller, present embodiment is to adopt programmable controller to constitute, utilization programmable controller technology, judge cart be quicken, at the uniform velocity, slow down, judge that cable reel is to be involved in or to emit, judge on the cable drum how many number of cables are arranged.
When programmable controller monitors big mechanism of car when bringing into operation, the frequency converter of cable reel is activated, frequency converter sends the order that allows to open drg to the programmable controller of cable reel then, then programmable controller declutches drg by output command, give the specified rate of the corresponding motor torque of frequency converter simultaneously, so cable reel just can be followed big mechanism of car operation freely.After big mechanism of car stopped one minute, the cable reel frequency converter stopped.When motor had electric energy to feed back to frequency converter, frequency converter fed back to power supply again.
The utility model is easy to operate, and the suffered pulling force of control cable is reliable for effect.
Claims (7)
1, frequency conversion drive cart cable reel arrangement comprises the cable reel body, is located at the mechanical transmission component of reel body input end and the function unit of this mechanical transmission component action of a control;
Described mechanical transmission component comprises a gear reduction box, a drg, a motor, and described gear reduction box is located at the input end of cable reel, and described drg is located at the input end of gear reduction box; Described motor is located at another input end of gear reduction box;
Described function unit comprises a cam stop, one first coder; The input end of described cam stop is connected with the mouth of gear reduction box, and described first speed encoder is located at the mouth of big mechanism of car;
It is characterized in that described motor is a variable-frequency motor; Described function unit also comprise one with mouth bonded assembly second coder and a control circuit of variable-frequency motor; The mouth of described cam stop is connected with the input end of control circuit; The mouth of described first coder and second coder is connected with the input end of control circuit respectively; The mouth of described control circuit is connected with the input end of drg and variable-frequency motor respectively.
2, frequency conversion drive cart cable reel arrangement according to claim 1, it is characterized in that described control circuit comprises a three-phase alternating-current supply circuit breaker, a frequency converter, a data handler, a load module, an output module, two communication interfaces and a single phase alternating current power supply circuit breaker and an electromagnetic contactor; Described three-phase alternating-current supply circuit breaker is connected the mouth of three-phase alternating-current supply, and described frequency converter is connected between the input end of three-phase alternating-current supply circuit breaker and motor; Described second coder is connected between frequency converter and the variable-frequency motor, and the impulse singla of the input end connection speed pulse coder output of described load module and the reel inner cable lap signal of cam stop output output to data handler; Described two communication interfaces are connected to the mouth of data handler and frequency converter, and described data handler is connected by communication bus is two-way with frequency converter; The mouth of described data handler is connected with the input end of output module, and the mouth of output module is connected with the control coil of electromagnetic contactor, and the Chang Kaiduan of electromagnetic contactor is connected with the single phase alternating current power supply circuit breaker.
3, frequency conversion drive cart cable reel arrangement according to claim 2, it is characterized in that described data handler comprises a speed signal processing unit, a dish upward number of cables processing unit, a torque calculation and action control unit, communication unit and a drg control unit; Described speed signal processing unit receive crane mechanism speed after treatment the output state speed signal to torque calculation and action control unit, the information that the number of cables processing unit receives cart cable reel cam stop on the described dish after treatment on the output panel number of cables to torque calculation and action control unit; Described torque calculation and action control unit with the state speed signal that receives and number of cables signal to communication unit; Described communication unit carries out two-way connection by data bus and frequency converter, and this communication unit is also exported a control signal to the drg control unit, exports the order of a dozen open brakes to output module by the drg control unit.
4, frequency conversion drive cart cable reel arrangement according to claim 3, it is characterized in that, the state speed signal of described speed signal processing unit output comprise be involved in speed signal, emit speed signal, acceleration mode signal, at the uniform velocity status signal and deceleration regime signal.
5, frequency conversion drive cart cable reel arrangement according to claim 2 is characterized in that, described data handler is made of a CPU micro controller system.
6, frequency conversion drive cart cable reel arrangement according to claim 2 is characterized in that described data handler is made of a programmable controller.
7, frequency conversion drive cart cable reel arrangement according to claim 2 is characterized in that described frequency converter is a vector frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040783 CN2789204Y (en) | 2005-04-11 | 2005-04-11 | Variable frequency driving cart cable reeling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040783 CN2789204Y (en) | 2005-04-11 | 2005-04-11 | Variable frequency driving cart cable reeling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789204Y true CN2789204Y (en) | 2006-06-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520040783 Expired - Fee Related CN2789204Y (en) | 2005-04-11 | 2005-04-11 | Variable frequency driving cart cable reeling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2789204Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287929A (en) * | 2013-05-28 | 2013-09-11 | 太原科技大学 | Detecting and automatic winding and unwinding device for electric drive engineering vehicle cable |
| CN109230868A (en) * | 2018-07-23 | 2019-01-18 | 江苏镇安电力设备有限公司 | Cable promotes constant tension control device and control method |
-
2005
- 2005-04-11 CN CN 200520040783 patent/CN2789204Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287929A (en) * | 2013-05-28 | 2013-09-11 | 太原科技大学 | Detecting and automatic winding and unwinding device for electric drive engineering vehicle cable |
| CN103287929B (en) * | 2013-05-28 | 2016-01-20 | 太原科技大学 | Electric drive engineering truck cable detects and automatic retraction device |
| CN109230868A (en) * | 2018-07-23 | 2019-01-18 | 江苏镇安电力设备有限公司 | Cable promotes constant tension control device and control method |
| CN109230868B (en) * | 2018-07-23 | 2020-09-25 | 江苏镇安电力设备有限公司 | Cable lifting constant tension control device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060621 |