CN203095429U - Control circuit used on floor-operated crane - Google Patents
Control circuit used on floor-operated crane Download PDFInfo
- Publication number
- CN203095429U CN203095429U CN 201320039595 CN201320039595U CN203095429U CN 203095429 U CN203095429 U CN 203095429U CN 201320039595 CN201320039595 CN 201320039595 CN 201320039595 U CN201320039595 U CN 201320039595U CN 203095429 U CN203095429 U CN 203095429U
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- China
- Prior art keywords
- loop
- control
- input end
- control circuit
- output end
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Abstract
The utility model discloses a control circuit used on a floor-operated crane. The control circuit comprises a motor control circuit, wherein the motor control circuit is form in the way as follows: the output end of a power supply is connected with the input end of a main loop, the output end of the main loop is connected with the input end of a motor, the output end of a control loop is connected with the input end of the main loop, the output end of an operating handle is connected with the input end of the control loop, and the output end of the control loop is connected with the input end of the main loop; and a conversion loop is in series connected between the operating handle and the control loop, and outputs a converted steady signal to the control loop for controlling. The reliability in use of safety voltage for the control voltage of the wide-span floor-operated crane can be ensured, the potential safety hazard of failure to actuate or incorrect operation of the equipment caused by voltage drop due to the longer control line is effectively avoided, and the reliability and production efficiency of the equipment are improved.
Description
Technical field:
The utility model relates to the control loop on a kind of terrestrial operation hoisting crane, is specially adapted to use on the terrestrial operation hoisting crane of large span.
Background technology:
The hoisting crane of existing terrestrial operation, safety in order to ensure operating personal, its control voltage adopts the AC36V safety voltage, but it is bigger owing to span on the hoisting crane of large span terrestrial operation, the pressure drop that produces on the control path that its operating handle is joined reduces the sensitivity of control loop element action greatly, thereby causes being failure to actuate or misoperation of equipment.Its shortcoming is: have potential safety hazard in real work, greatly reduced the reliability and the service efficiency of equipment.
Summary of the invention:
Task of the present utility model is to propose a kind of potential safety hazard of effectively avoiding the long pressure drop that is produced of control line to cause being failure to actuate of equipment or misoperation, the control path of the reliability of raising equipment and a kind of terrestrial operation hoisting crane of production efficiency.
Task of the present utility model is finished like this, control path on a kind of terrestrial operation hoisting crane, it comprises that the mouth of power supply is connected with the input end of major loop, the mouth of major loop is connected with input end on the electrical motor, the mouth of control loop is connected with the input end of major loop, the mouth of operating handle is connected with the input end of control loop, the mouth of control loop and the input end of major loop are connected to form electromotor control circuit, it is characterized in that: the inter-burst of described operating handle and control loop is connected to a conversion loop, and the stabilization signal after the conversion loop will be changed is exported to control loop and controlled.
The utlity model has following effect: the utility model can guarantee the reliability of the terrestrial operation hoisting crane control voltage voltage safe in utilization of large span, the pressure drop of having avoided control line to be produced than length effectively causes the potential safety hazard of being failure to actuate of equipment or misoperation, has improved the reliability and the production efficiency of equipment.
Description of drawings:
Fig. 1 is the prior art circuits block diagram; Fig. 2 is a circuit block diagram of the present utility model.
Drawing explanation: 1, power supply, 2, operating handle, 3, major loop, 4, control loop, 5, electrical motor, 6, the conversion loop.
The specific embodiment:
Describe embodiment in detail in conjunction with above accompanying drawing, see Fig. 1, circuit of the prior art is connected with the input end of major loop 2 by the mouth of power supply 1, the mouth of major loop 3 is connected with input end on the electrical motor 5, the mouth of control loop is connected with the input end of major loop, the mouth of operating handle 2 is connected with the input end of control loop 4, the mouth of control loop and the input end of major loop are connected to form electromotor control circuit, see Fig. 2, the distinguishing characteristics of the technical program is that the inter-burst at described operating handle and control loop is connected to a conversion loop 6, and the stabilization signal after will being changed by the conversion loop is exported to control loop and controlled.
During work, power supply uses AC380V, the action of control loop is controlled by operating handle, power supply is through the major loop driving motor running of control loop control, change-over circuit is that the safety voltage control signal with operating handle output converts stable control signal to and is defeated by control loop and controls, when having avoided voltage safe in utilization effectively because the long pressure drop that is produced of control line causes the potential safety hazard of being failure to actuate of equipment or misoperation.
Claims (1)
1. the control path on the terrestrial operation hoisting crane, it comprises that the mouth of power supply is connected with the input end of major loop, the mouth of major loop is connected with input end on the electrical motor, the mouth of control loop is connected with the input end of major loop, the mouth of operating handle is connected with the input end of control loop, the mouth of control loop and the input end of major loop are connected to form electromotor control circuit, it is characterized in that: the inter-burst of described operating handle and control loop is connected to a conversion loop, and the stabilization signal after the conversion loop will be changed is exported to control loop and controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039595 CN203095429U (en) | 2013-01-25 | 2013-01-25 | Control circuit used on floor-operated crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039595 CN203095429U (en) | 2013-01-25 | 2013-01-25 | Control circuit used on floor-operated crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203095429U true CN203095429U (en) | 2013-07-31 |
Family
ID=48846850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320039595 Expired - Fee Related CN203095429U (en) | 2013-01-25 | 2013-01-25 | Control circuit used on floor-operated crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203095429U (en) |
-
2013
- 2013-01-25 CN CN 201320039595 patent/CN203095429U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160815 Address after: Xinxiang City, Henan province 453700 Taipei National Economic and Technological Development Zone and Elm Road intersection line No. 1 Patentee after: Henan World-Mastery Electrical Automation Co., Ltd. Address before: Xinxiang City, Henan province 453002 Frestech Street No. 81 Patentee before: Henan Crane Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20190125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |