CN1143809C - Hoister with synchronous multiple hoisted points - Google Patents
Hoister with synchronous multiple hoisted points Download PDFInfo
- Publication number
- CN1143809C CN1143809C CNB021290504A CN02129050A CN1143809C CN 1143809 C CN1143809 C CN 1143809C CN B021290504 A CNB021290504 A CN B021290504A CN 02129050 A CN02129050 A CN 02129050A CN 1143809 C CN1143809 C CN 1143809C
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- frequency
- motor
- hoister
- speed
- adjusting system
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Abstract
The present invention discloses a hoister with synchronized multiple hoisting points, which relates to a hoister used for hoisting large components in a small space (such as an underground cave depot). The present invention provides the hoister with multiple hoisting points, which has the advantages of high synchronizing precision, good speed regulation performance and reliable performance. The technical scheme comprises: the hoister with synchronized multiple hoisting points comprises two to three frequency-changing speed control hoisters, and a synchronization control circuit and a parallel control circuit are respectively arranged among a frequency-changing speed control system of a cart electrical motor, a frequency-changing speed control system of a trolley electrical motor, a frequency-changing speed control system of a hoisting electrical motor of each frequency-changing speed control hoister. When the hoister with synchronized multiple hoisting points is used, the operation can be realized on a manual switch of any frequency-changing speed control hoister, the synchronization of the speed and the positions among other frequency-changing speed control hoisters and the master frequency-changing speed control hoister is maintained in high precision, and the safe and reliable hoisting with hoisted points is realized.
Description
Technical field
The present invention relates to a kind of hoisting crane, particularly a kind of hoisting crane that is used for (as underground cavern) hoisting large-size parts in less space.
Background technology
The hoisting large-size parts need to be equipped with relatively large weight-lifting equipment usually.But (as in underground cavern) this scheme can't be implemented when having the certain space restriction.In order to solve this contradiction, can amass less hoisting crane many suspension centres hoisting large-size parts simultaneously with the 2-3 stage body, but several hoisting cranes must keep high level of synchronization, to guarantee lifting safety and otherwise technical requirements.
Summary of the invention
The purpose of this invention is to provide a kind of synchronization accuracy height, good speed adjustment features, reliable multi-suspension-centres crane, satisfy the requirement of hoisting large-size parts in less space.
Technical scheme of the present invention is: hoister with synchronous multiple hoisted points comprises 2 to 3 frequency control hoisting cranes, between the cargo motor frequency conversion speed-adjusting system of each frequency control hoisting crane, between the vehicle motor frequency conversion speed-adjusting system, between the lifting motor frequency conversion speed-adjusting system, all respectively be provided with a synchronization control circuit and one and car control circuit;
Each synchronization control circuit comprises: 2 to 3 counting machines, and it receives the motor speed signal that rotary encoder sent on the corresponding motor, and integration is a position signal; A comparator, it accepts the position signal that above-mentioned each counting machine sent, and compares, and provides position error signal; 2 to 3 position feedback circuit, it receives the given position error signal of above-mentioned comparator, feeds back to cooresponding motor variable-frequency speed-regulating system, makes it adjust rotating speed, eliminates position deviation, realizes the synchronous of each motor;
Each and car control circuit comprise: 2 to 3 communication modules, they can accept the control command that PCL sent in each self-corresponding motor variable-frequency speed-regulating system, and by other communication modules, same instruction is passed to PCL in other motor variable-frequency speed-regulating systems, make other motor accompany movements, realize the also car of each motor.
Use the present invention, can be at the enterprising line operate of torch door of any frequency control hoisting crane, other frequency control hoisting cranes will maintain speed and position synchronous with master control frequency control hoisting crane accurately, have realized the safe and reliable lifting of many suspension centres.
Description of drawings
Fig. 1 is the cargo motor frequency conversion speed-adjusting system functional block diagram as the separate unit frequency control hoisting crane of prior art, other vehicle motor frequency conversion speed-adjusting system, and perhaps the lifting motor frequency conversion speed-adjusting system is identical with it.
Fig. 2 between two frequency control crane motor variable-frequency speed-regulating systems, realizes synchronously for the present invention and and the functional block diagram of car, realize synchronously identical with it between other vehicle motor frequency conversion speed-adjusting systems, between the lifting motor frequency conversion speed-adjusting system with the functional block diagram of car also.
The specific embodiment
Referring to Fig. 1, separate unit frequency control hoisting crane realizes that the process of speed governing is: torch door 1 sends operating order and gives PCL2, and PCL2 is through sequential operation, and one the tunnel directly sends frequency converter 4 to, control motor 5 forward or reverse; Another road becomes analog quantity input converter 4 through D/A change-over circuit 3, the rotating speed of control motor 5.Rotary encoder 6 on the motor shaft sends tach signal, is added to the input end of frequency converter 4 through velocity feedback circuits 7, realizes negative velocity feedback, makes motor 5 stabilizations of speed.
Referring to Fig. 2, for many suspension centres of realizing many hoisting cranes lift by crane synchronously, utilize 2 to 3 frequency control hoisting cranes, between the cargo motor frequency conversion speed-adjusting system of each frequency control hoisting crane, between the vehicle motor frequency conversion speed-adjusting system, between the lifting motor frequency conversion speed-adjusting system, all respectively set up a synchronization control circuit 40 and one and car control circuit 41;
Each synchronization control circuit 40 comprises: 2 to 3 counting machines 18,28, and it receives rotary encoder 16,26 motor speed signals that sent on the corresponding motor 15,25, and integration is a position signal; A comparator 8, it accept above-mentioned each counting machine 18,28 position signals that send, and compare, provide position error signal; 2 to 3 position feedback circuit 19,29, it receives the given position error signal of above-mentioned comparator 8, feeds back to the PCL12,22 on corresponding motor variable-frequency speed-regulating system ground, makes it adjust rotating speed, eliminates position deviation, realize each motor 15,25 synchronously;
Each and car control circuit 41 comprise: 2 to 3 communication modules 10,20, they can accept PCL12,22 control commands of being sent in each self-corresponding motor variable-frequency speed-regulating system, and by other communication modules 20,10, same instruction is passed to PCL22,12 in other motor variable-frequency speed-regulating systems, make other motor 25,15 accompany movements, realize the also car of each motor 15,25.
For operability and the reliability that improves hoister with synchronous multiple hoisted points, in the cargo motor frequency conversion speed-adjusting system of every frequency control hoisting crane, vehicle motor frequency conversion speed-adjusting system, lifting motor frequency conversion speed-adjusting system, a telltale that links to each other with PCL12,22 51,52 is all respectively arranged, during normal operation, it shows the mode of operation of PCL, frequency converter and motor, when breaking down, it demonstrates relevant failure message.
Claims (2)
1, a kind of hoister with synchronous multiple hoisted points, comprise 2 to 3 frequency control hoisting cranes, it is characterized in that:, all respectively be provided with a synchronization control circuit (40) and one and car control circuit (41) between the cargo motor frequency conversion speed-adjusting system of described each frequency control hoisting crane, between the vehicle motor frequency conversion speed-adjusting system, between the lifting motor frequency conversion speed-adjusting system;
Each synchronization control circuit (40) comprising: 2 to 3 counting machines (18,28), and it receives corresponding motor (15,25) and goes up the motor speed signal that rotary encoder (16,26) is sent, and integration is a position signal; A comparator (8), it accepts the position signal that above-mentioned each counting machine (18,28) is sent, and compares, and provides position error signal; 2 to 3 position feedback circuit (19,29), it receives the given position error signal of above-mentioned comparator (8), feeds back to the PCL (12,22) of corresponding motor variable-frequency speed-regulating system, makes it adjust rotating speed, eliminate position deviation, realize the synchronous of each motor (15,25);
Each and car control circuit (41) comprising: 2 to 3 communication modules (10,20), they can accept the control command that PCL in each self-corresponding motor variable-frequency speed-regulating system (12,22) is sent, and by other communication modules (20,10), same instruction is passed to PCL (22,12) in other motor variable-frequency speed-regulating systems, make other motors (25,15) accompany movement, realize the also car of each motor (15,25).
2, hoister with synchronous multiple hoisted points according to claim 1, it is characterized in that: in the cargo motor frequency conversion speed-adjusting system of every frequency control hoisting crane, vehicle motor frequency conversion speed-adjusting system, lifting motor frequency conversion speed-adjusting system, a telltale (51,52) that links to each other with PCL (12,22) is arranged respectively all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021290504A CN1143809C (en) | 2002-08-30 | 2002-08-30 | Hoister with synchronous multiple hoisted points |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021290504A CN1143809C (en) | 2002-08-30 | 2002-08-30 | Hoister with synchronous multiple hoisted points |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1396107A CN1396107A (en) | 2003-02-12 |
| CN1143809C true CN1143809C (en) | 2004-03-31 |
Family
ID=4746116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021290504A Expired - Fee Related CN1143809C (en) | 2002-08-30 | 2002-08-30 | Hoister with synchronous multiple hoisted points |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1143809C (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337903C (en) * | 2004-09-29 | 2007-09-19 | 天津港务局 | Device and control method for double speed of container bank crane vehicle |
| CN1319845C (en) * | 2005-06-07 | 2007-06-06 | 大连华锐股份有限公司 | Crane lifting mechanism planetary transmission chain real time monitoring system |
| CN1903698B (en) * | 2006-08-04 | 2011-07-20 | 长江三峡通航管理局 | Multipoint synchronous lifting device and its lifting method |
| CN101139069A (en) * | 2007-06-29 | 2008-03-12 | 大连华锐股份有限公司 | Multiple hanging points crane electric control method |
| CN101670981B (en) * | 2009-10-13 | 2012-06-13 | 上海理工大学 | Long rail crane group simultaneous localization system with semi-closed loop position feedback and location method thereof |
| CN102408065B (en) * | 2011-10-28 | 2014-07-23 | 上海三一科技有限公司 | Multi-winch synchronous control device and control method as well as crane comprising the device |
| CN102491180B (en) * | 2011-11-25 | 2013-10-23 | 河南华东工控技术有限公司 | Group control hoisting multipoint positioning control system |
| CN102874706B (en) * | 2012-09-28 | 2015-05-13 | 三一重工股份有限公司 | Synchronous system for multiple winches |
| CN102874705A (en) * | 2012-09-28 | 2013-01-16 | 三一重工股份有限公司 | System and method for synchronous control of multiple winches |
| CN104454799B (en) * | 2014-12-01 | 2016-08-17 | 北京机械设备研究所 | A kind of hydraulic means leveling speed sync method based on Displacement Feedback |
| CN106276610A (en) * | 2016-08-25 | 2017-01-04 | 河南起重机器有限公司 | A kind of many cars of crane synchronize and car electric-control system |
| CN107973220B (en) * | 2017-12-01 | 2019-06-07 | 江西工埠机械有限责任公司 | The hoisting system and its control method that permanent magnet direct-driven electromagnetic suspended beam is hung |
| CN109607387A (en) * | 2018-12-14 | 2019-04-12 | 宁波市凹凸重工有限公司 | A kind of control system and method for the synchronous operation of more cranes |
| CN110143533A (en) * | 2019-04-26 | 2019-08-20 | 南京航空航天大学 | A kind of suspension hook synchronous lifting device and method based on wireless communication and electric block |
| CN112320595B (en) * | 2020-11-03 | 2023-05-12 | 北京云中未来科技有限公司 | Balance operation method for multi-lifting-point combined lifting wall cylinder of multiple cranes |
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2002
- 2002-08-30 CN CNB021290504A patent/CN1143809C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1396107A (en) | 2003-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XINXIANG HOISTING EQUIPMENT FACTORY. CO.,LTD. Free format text: FORMER NAME: XINXIANG HOISTING EQUIPMENT FACTORY. |
|
| CP03 | Change of name, title or address |
Address after: No. 111 South Main Road, Henan, Xinxiang: 403003 Patentee after: Xinxiang Crane Equipment Factory Co., Ltd. Address before: No. 111 South Main Road, Henan, Xinxiang: 403003 Patentee before: Hoisting Apparatus Factory, Xinxiang City |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Henan Crane Co., Ltd. Assignor: Xinxiang Crane Equipment Factory Co., Ltd. Contract fulfillment period: 2006.3.18 to 2016.3.17 contract change Contract record no.: 2009410000058 Denomination of invention: Hoister with synchronous multiple hoisted points Granted publication date: 20040331 License type: Exclusive license Record date: 2009.4.17 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.3.18 TO 2016.3.17; CHANGE OF CONTRACT Name of requester: HENAN CRANE CO., LTD. Effective date: 20090417 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040331 Termination date: 20130830 |