CN201506678U - Descending speed regulation control device of crane without selecting load - Google Patents
Descending speed regulation control device of crane without selecting load Download PDFInfo
- Publication number
- CN201506678U CN201506678U CN2009202090825U CN200920209082U CN201506678U CN 201506678 U CN201506678 U CN 201506678U CN 2009202090825 U CN2009202090825 U CN 2009202090825U CN 200920209082 U CN200920209082 U CN 200920209082U CN 201506678 U CN201506678 U CN 201506678U
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- load
- control device
- crane
- speed regulation
- speed
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Abstract
The utility model relates to a descending speed regulation control device of a crane without selecting a load, comprising brakes which are interlocked with each other, a lifting contactor as well as a control device which can be used in driving operation, ground operation, PLC control and remote operation, a loading sensor is also hanged on a AC power network. The device is characterized in that a light load tap, a middle load tap and a heavy load tap are extracted from the load sensor. The utility model has the advantages that the conventional control of the crane is improved, the slow descending process with 1 to 3 speed ratio can be provided to any load, the working current of speed regulation gear is always controlled within the rated value, thereby the service life of components is increased, and the phenomenon of amounting instead of decreasing is not occurred. The device can be used in a plurality of operation places. The production cost of the system is decreased.
Description
Technical field
The utility model relates to the decline speed-regulating control device that a kind of hoisting crane is not selected load, is used for the hoisting crane frequency-converting control device, belongs to hoisting crane electrical controller technical field.
Background technology
The resistance of conventional hoisting crane switches the 1S control system, first retaining that descends adopts the control forms of uniphase brake that the decline process at a slow speed of the indefinite speed adjustable range of one retaining is provided to underload, carry load one retaining transient state in when descending the position return-to-zero, giving and draw kinetic moment, to reduce the decline impulsive force.Non-loaded light, heavily loaded basis for estimation in the 1S control system, light hook can not be transferred, and it is two times of values of rated operational current that electric current is drawn in middle heavy duty, and uniphase brake contactless switch fault rate height, maintenance capacity are big, and can only be used to drive the behaviour system.The performance diagram of this 1S control setup as shown in Figure 1, as known in the figure, the secondary reversal connection is only worked zero the time descending back, and the phenomenon of going up not down is arranged, slip is not controlled in uniphase brake and secondary reversal connection, electric current is big and fault rate is high.
The resistance of conventional hoisting crane switches the 2S control system, during the control forms that first and second retaining that descends adopts reversal connection to draw is given, heavy duty provides the decline process at a slow speed of the indefinite speed adjustable range of a retaining; Non-loaded light, in, the disconnected foundation of major punishment, normal occur light, in carry the phenomenon that goes up not down, in, speed governing retaining electric current is two times of values of rated operational current during heavy duty; Also can cause heavy duty to carry the situation of work area out of reach decline speed governing effect, fragile contactless switch and motor in working in, and can only be used to drive the behaviour system.The performance diagram of 2S control setup as shown in Figure 2, as known in the figure, the decline process phenomenon of going up not down is arranged and do not control slip, electric current is big and fault rate is high.
Summary of the invention
The purpose of this utility model provides a kind of decline speed-regulating control device that improves the degree of safety of system, the service life of having improved components and parts and reduction system cost and can use under various operation occasions.
In order to achieve the above object, the decline speed-regulating control device that technology of the present utility model provides a kind of hoisting crane not select load, comprise reciprocal interlocking drg, lifting contactless switch and can for drive behaviour, grasp, PLC controls and the control setup of remote manipulation, on AC network, also hang with load transducer, it is characterized in that, on load transducer, lead to underloading, in carry and heavily loaded tap.Underloading, in carry and heavily loaded tap is differentiated different loading conditions and the decline process at a slow speed of a retaining 1/3 specified speed is provided for load automatically, and do not have the phenomenon that goes up not down.
The utility model has the advantages that: on load transducer, add light, in, heavily loaded tap finishes the judgement of Crane Load state, improving the conventional control of hoisting crane provides the decline process at a slow speed of 1: 3 speed ratio for any load, speed governing is kept off working current to be controlled in the rated value all the time, improve the service life of components and parts, and do not had the phenomenon that goes up not down; Can under various operation occasions, use; Reduced system cost (1500 to 5000 yuan every).
Description of drawings
Fig. 1 is former 1S performance diagram;
Fig. 2 is former 2S performance diagram;
A kind of hoisting crane that Fig. 3 provides for the utility model is not selected the block diagram of the decline speed-regulating control device of load;
A kind of hoisting crane that Fig. 4 provides for the utility model is not selected the decline speed-regulating control device performance chart of load;
Fig. 5 is the partial enlarged drawing of tap part.
The specific embodiment
Specify the utility model below in conjunction with performance chart.
Embodiment
Be illustrated in figure 3 as the primary side schematic diagram of this patent, comprise reciprocal interlocking drg 2, lifting contactless switch 1 and can for drive behaviour, grasp, PLC controls and the control setup of remote manipulation, on AC network, also hang with load transducer 3, on load transducer 3, lead to underloading, in carry and heavily loaded tap, specifically see Fig. 5.Underloading, in carry and heavily loaded tap and contactless switch, relay also or PLC control and remote control Collaborative Control reach the destination device that conventional control certificate has the decline speed control of not selecting load of 1/3 speed ratio.
As shown in Figure 4, a kind of hoisting crane that provides for the utility model is not selected the performance chart of the decline speed-regulating control device of load, and characteristic curve a, b, c three parts constitute the low speed governing characteristic of decline of 1/3Ve.Characteristic curve a is 〉=10% and the working curve of≤46% load; Characteristic curve b is≤57% and the working curve of 〉=46% load; Characteristic curve c is the working curve of 〉=57% load.Solid line in the c line is the rising characteristic line, and dotted line is the dropping characteristic line, is controlled by different working processs respectively, and a characteristic curve does not all have the phenomenon that empty hook can not descend, and b, c characteristic curve all do not have the phenomenon of going up not down.
Claims (1)
1. a hoisting crane is not selected the decline speed-regulating control device of load, comprise reciprocal interlocking drg (2), lifting contactless switch (1) and can for drive behaviour, grasp, PLC controls and the control setup of remote manipulation, on AC network, also hang with load transducer (3), it is characterized in that, on load transducer (3), lead to the underloading of differentiating the different loads state, in carry and heavily loaded tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202090825U CN201506678U (en) | 2009-09-03 | 2009-09-03 | Descending speed regulation control device of crane without selecting load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202090825U CN201506678U (en) | 2009-09-03 | 2009-09-03 | Descending speed regulation control device of crane without selecting load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201506678U true CN201506678U (en) | 2010-06-16 |
Family
ID=42467806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202090825U Expired - Fee Related CN201506678U (en) | 2009-09-03 | 2009-09-03 | Descending speed regulation control device of crane without selecting load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201506678U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612986A (en) * | 2013-11-25 | 2014-03-05 | 中联重科股份有限公司 | Crane, and method, device and system for controlling free fall hook thereof |
| CN104891343A (en) * | 2015-05-22 | 2015-09-09 | 天津港汇盛码头有限公司 | Portal crane operation control system capable of accelerating descending |
-
2009
- 2009-09-03 CN CN2009202090825U patent/CN201506678U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612986A (en) * | 2013-11-25 | 2014-03-05 | 中联重科股份有限公司 | Crane, and method, device and system for controlling free fall hook thereof |
| CN103612986B (en) * | 2013-11-25 | 2015-06-17 | 中联重科股份有限公司 | Crane, and method, device and system for controlling free fall hook thereof |
| CN104891343A (en) * | 2015-05-22 | 2015-09-09 | 天津港汇盛码头有限公司 | Portal crane operation control system capable of accelerating descending |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANG MEISHENG Free format text: FORMER OWNER: SHANGHAI XIONGFENG HOISTING EQUIPMENT PLANT CO., LTD. Effective date: 20110811 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200439 SONGJIANG, SHANGHAI TO: 201602 SONGJIANG, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110811 Address after: 201602 No. 282, Lane 15, Taoyuan Road, Sheshan Town, Shanghai, Songjiang District Patentee after: Wang Meisheng Address before: 200439 Shanghai City Industrial Zone Sheshan town Songjiang District Shebei Road No. 2199 Patentee before: Shanghai Xiongfeng Hoist & Crane Plant Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI YINGSHI ELECTROMECHANIC CO., LTD. Free format text: FORMER OWNER: WANG MEISHENG Effective date: 20130427 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130427 Address after: 201602 No. 282, Lane 15, Taoyuan Road, Sheshan Town, Shanghai, Songjiang District Patentee after: Shanghai rigid stone electromechanical Co., Ltd. Address before: 201602 No. 282, Lane 15, Taoyuan Road, Sheshan Town, Shanghai, Songjiang District Patentee before: Wang Meisheng |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI RONGBEI INDUSTRIAL CO., LTD. Free format text: FORMER OWNER: SHANGHAI YINGSHI ELECTROMECHANIC CO., LTD. Effective date: 20140519 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140519 Address after: 201602 Shanghai Songjiang District Sheshan town Jiangqiu Road No. 2 Patentee after: SHANGHAI RONGBEI INDUSTRIAL CO., LTD. Address before: 201602 No. 282, Lane 15, Taoyuan Road, Sheshan Town, Shanghai, Songjiang District Patentee before: Shanghai rigid stone electromechanical Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20140903 |
|
| EXPY | Termination of patent right or utility model |