CN101885450A - Crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and method thereof - Google Patents
Crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and method thereof Download PDFInfo
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- CN101885450A CN101885450A CN 201010236074 CN201010236074A CN101885450A CN 101885450 A CN101885450 A CN 101885450A CN 201010236074 CN201010236074 CN 201010236074 CN 201010236074 A CN201010236074 A CN 201010236074A CN 101885450 A CN101885450 A CN 101885450A
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Abstract
The invention relates to a crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and a method thereof. The system comprises a main amplitude mast, a main amplitude winch, a steel wire rope, a cocked cylinder, a pressure adjustment device and a control system, wherein the cocked cylinder is positioned on the main platform of a crawler crane; the top end of the cocked cylinder is in contact with the main amplitude mast; the control system is positioned on the main amplitude mast near the cocked cylinder; and the pressure adjustment device is connected with the cocked cylinder and the control system. Through the secondary pressure limit, the crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and the method thereof of the invention solve the bad problems in the action process of the crawler crane main amplitude, effectively prevent the rope disordering phenomenon of main amplitude steel wire ropes and ensure that the amplitude mast and the cocked cylinder are not damaged, thereby enabling the whole crawler crane to achieve the safe construction operation requirements and greatly improving the working efficiency and the stability of the crawler crane.
Description
Technical field
The present invention relates to the technical field of crawler crane, especially, relate to a kind of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system and method thereof.
Background technology
When the concrete operation of crawler crane, when main amplitude mast is transferred, the operation that main transformer width of cloth elevator is received steel rope, cocked cylinder will be withdrawn simultaneously.If the cocked cylinder withdrawal is too fast, then can cause main transformer width of cloth steel rope loose excessively, this is easy to cause the steel rope disorder cable, thereby causes certain potential safety hazard; If it is too fast that main transformer width of cloth elevator is received steel rope, then might cause main amplitude mast to fracture, perhaps unsafe condition such as cocked cylinder bending takes place.Thereby the cocked device of crawler crane main amplitude mast of the prior art causes crawler crane can not reach the job requirements of safe construction fully owing to there is above-mentioned defective, has had a strong impact on the raising of its work efficiency, can't guarantee its smooth operation.
Summary of the invention
The object of the present invention is to provide a kind of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system and method thereof, it is by adjusting cocked cylinder pressure, make steel rope be in tensioned state all the time, steel rope is stressed to be in system's tolerance interval, thereby fundamentally having stopped phenomenons such as steel rope disorder cable, main amplitude mast fracture, cocked cylinder bending takes place, reach the job requirements of safe construction, improved the work efficiency and the stability of crawler crane greatly.
To achieve these goals, a kind of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention, it comprises main amplitude mast, main transformer width of cloth elevator, steel rope, cocked cylinder, also comprise pressure regulation device and control system, wherein, described main amplitude mast bottom and described main transformer width of cloth elevator all are fixed on the crawler crane main platform, described steel rope is connected between the top and main transformer width of cloth elevator of main amplitude mast, described cocked cylinder is positioned on the crawler crane main platform, and the top contacts with described main amplitude mast, and described control system is positioned on the described main amplitude mast, and near described cocked cylinder, described pressure regulation device links to each other with described control system with described cocked cylinder.
Above-mentioned crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system, wherein said control system comprises position detecting device and controller.
Above-mentioned crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system, wherein, described position detecting device comprises two sensors and a weight pointer.
Above-mentioned crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system, wherein, described weight pointer one end is fixed, the other end slidably is provided with, described two sensors lay respectively at the first order of described cocked cylinder and the position that second stage oil cylinder rises fully, and are in the sliding scale of described weight pointer.
Above-mentioned crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system, wherein, the length of the fixed end of described two described weight pointers of sensor distance is identical.
Above-mentioned crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system, wherein, described pressure regulation device comprises two balance cocks and two electromagnetic valves, and described two balance cocks link to each other with described cocked cylinder, are used to switch the pressure of described cocked cylinder.
Above-mentioned crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system, wherein, described cocked cylinder comprises three grades of oil cylinders.
In addition, the secondary pressure method of adjustment of a kind of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention, it is specially crawler crane when tearing car open, and main transformer width of cloth elevator is received steel rope, and main amplitude mast is transferred,
When cocked cylinder third stage oil cylinder was regained fully, control system control presssure setting device switched to first force value with the pressure of cocked cylinder, and main transformer width of cloth elevator continues to receive steel rope;
When cocked cylinder second stage oil cylinder was regained fully, control system control presssure setting device switched to second force value with the pressure of cocked cylinder, and main transformer width of cloth elevator continues to receive steel rope, places on the crawler crane main platform up to main amplitude mast.
The secondary pressure method of adjustment of above-mentioned crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system, wherein, described control system comprises position detecting device and controller, it detects the current position of cocked cylinder by position detecting device, and controller receives control presssure setting device switch pressure value behind the corresponding position signal.
Therefore, the position detecting device of the progression that a kind of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention and method are stretched out by installation and measuring cocked cylinder on main amplitude mast, when main amplitude mast is transferred, according to the residing progression difference of cocked cylinder the pressure of cocked cylinder is regulated, remain unchanged thereby make main transformer width of cloth elevator receive rope speed, the action of total system is in stabilized conditions.This actv. has prevented the disorder cable phenomenon of steel rope, has guaranteed that main amplitude mast and cocked cylinder are not damaged, and makes whole crawler crane reach the safe construction job requirements, has improved its work efficiency and stability greatly.
Description of drawings
Fig. 1 is the constructional drawing of a kind of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention;
Fig. 2 is the structural representation of pressure regulation device in a kind of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention;
Fig. 3 is the structural representation of position detecting device in a kind of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention;
Fig. 4 is the running state scheme drawing of a kind of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention.
The specific embodiment
The present invention will be further described in detail below in conjunction with accompanying drawing.
The present invention has increased control system and pressure regulation device in traditional crawler crane main amplitude mast operating system, to realize the secondary pressure adjustment of cocked cylinder.Fig. 1 is the constructional drawing of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention.As shown in the figure, main amplitude mast 1 bottom is fixed on the crawler crane main platform, and main transformer width of cloth elevator 3 also is fixedly installed on the main platform of crawler crane, and the two ends of steel rope 2 then are separately fixed on the top and main transformer width of cloth elevator 3 of main amplitude mast 1.Cocked cylinder 4 comprises three grades of oil cylinders, and it places on the crawler crane main platform, and its top contacts with main amplitude mast 1, also is provided with control system 5 on main amplitude mast 1, and it is provided with near cocked cylinder 4.In addition, in the crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of invention, also include the pressure regulation device (not shown).This pressure regulation device is connected with control system 5 with cocked cylinder 4.In said structure, control system comes the control presssure setting device that the pressure of cocked cylinder 4 is carried out twice adjustment accordingly according to the telescopic variation of cocked cylinder 4.
Fig. 2 is the concrete structure scheme drawing of pressure regulation device.As seen from the figure, this pressure regulation device includes two balance cocks 21 and two electromagnetic valves 22, and wherein, electromagnetic valve 22 is used for linking to each other with control system 5, and 22 of electromagnetic valves link to each other with balance cock 21, and the pressure that 21 of balance cocks are used for directly carrying out cocked cylinder 4 switches.
In a preferred embodiment of the invention, control system 5 comprises position detecting device and controller two parts again.Wherein, position detecting device is used to detect the current telescopic location situation of cocked cylinder 4, controller then is used for according to the detected information of position detecting device, the control presssure setting device is to carry out the secondary pressure adjustment to cocked cylinder 4, with the receipts rope speed of maintenance steel rope, thus stable the carrying out of withdrawal of assurance main amplitude mast 1.
Fig. 3 is the structural representation of position detecting device of the present invention.As shown in the figure, this position detecting device comprises a weight pointer 31 and sensor 32, sensor 33.Wherein, weight pointer 31 1 ends are fixed, and the other end can slide around fixed end.Sensor 32 and sensor 33 lay respectively at the position of cocked cylinder 4 second stage oil cylinders and the rise of first order oil cylinder.When the third stage oil cylinder of cocked cylinder 4 was regained fully, when promptly second stage oil cylinder stretched out fully, weight pointer 31 was in the position of sensor 32; When the second stage of cocked cylinder 4 oil cylinder was regained fully, when promptly first order oil cylinder stretched out fully, weight pointer 31 was in the position of sensor 33.Hence one can see that, sensor 32 and sensor 33 all be in weight pointer 31 in the sliding scale of its fixed end.Simultaneously, sensor 32 and sensor 33 can be identical apart from the length of weight pointer 31 fixed ends, also can be different.By said structure, position detecting device can carry out perception, and send corresponding location information when certain one-level oil cylinder of cocked cylinder be regained fully timely.This location information is sent to controller, switches thereby carry out corresponding pressure.
Introduce the secondary pressure method of adjustment of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention below in detail.Fig. 4 then is the running state scheme drawing of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention.
Concrete method of operation is as follows: when crawler crane is torn car open, and the operation that main transformer width of cloth elevator 3 is received steel rope 2.When main amplitude mast 1 was transferred to position 2 by position 1, the third stage oil cylinder of cooresponding cocked cylinder 4 was regained fully.At this moment, the sensor in the position detecting device 32 sends corresponding position signal; After controller received and covers position signal, the electromagnetic valve YV13 in the control presssure setting device got electric, and then the pressure of cocked cylinder 4 is set to pressure set points A by balance cock 21 switchings; After this, the operation that main transformer width of cloth elevator 3 proceeds to receive steel rope 2, when main amplitude mast 1 is transferred to position 3 by position 2, the second stage oil cylinder of cocked cylinder 4 is regained fully, sensor 33 in the position detecting device sends corresponding position signal at this moment, after controller received this position signal, the electromagnetic valve YV14 in the control presssure setting device got electric, and then the pressure of cocked cylinder 4 switches to setting value B by setting value A.After this, main transformer width of cloth elevator 3 continues to receive steel rope 2, places until main amplitude mast 1 on the main platform of crawler crane.So far, realize steadily transferring of main amplitude mast, guaranteed the safe construction operation of crawler crane.
Therefore, a kind of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system of the present invention and method thereof are spacing by secondary pressure, solved the bad problem in the crawler crane main amplitude course of action, actv. has prevented the disorder cable phenomenon of main transformer width of cloth steel rope, guaranteed that amplitude mast and cocked cylinder are not damaged, make whole crawler crane reach the safe construction job requirements, improved its work efficiency and stability greatly.
More than specific embodiments of the invention are described in detail, but the present invention is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications that this crawler crane main amplitude mast cocked cylinder secondary pressure setting device is carried out and substituting also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (9)
1. crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system, comprise main amplitude mast, main transformer width of cloth elevator, steel rope, cocked cylinder, it is characterized in that, also comprise pressure regulation device and control system, wherein, described main amplitude mast bottom and described main transformer width of cloth elevator all are fixed on the crawler crane main platform, described steel rope is connected between the top and main transformer width of cloth elevator of main amplitude mast, described cocked cylinder is positioned on the crawler crane main platform, and the top contacts with described main amplitude mast, and described control system is positioned on the described main amplitude mast, and near described cocked cylinder, described pressure regulation device links to each other with described control system with described cocked cylinder.
2. crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system according to claim 1 is characterized in that described control system comprises position detecting device and controller.
3. crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system according to claim 2 is characterized in that, described position detecting device comprises two sensors and a weight pointer.
4. crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system according to claim 3, it is characterized in that, described weight pointer one end is fixed, the other end slidably is provided with, described two sensors lay respectively at the first order of described cocked cylinder and the position that second stage oil cylinder rises fully, and are in the sliding scale of described weight pointer.
5. crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system according to claim 4 is characterized in that, the length of the fixed end of described two described weight pointers of sensor distance is identical.
6. crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system according to claim 1, it is characterized in that, described pressure regulation device comprises two balance cocks and two electromagnetic valves, described two balance cocks link to each other with described cocked cylinder, are used to switch the pressure of described cocked cylinder.
7. crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system according to claim 1 is characterized in that, described cocked cylinder comprises three grades of oil cylinders.
8. the secondary pressure method of adjustment of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system as claimed in claim 1 is characterized in that, when crawler crane was torn car open, main transformer width of cloth elevator was received steel rope, and main amplitude mast is transferred,
When cocked cylinder third stage oil cylinder was regained fully, control system control presssure setting device switched to first force value with the pressure of cocked cylinder, and main transformer width of cloth elevator continues to receive steel rope;
When cocked cylinder second stage oil cylinder was regained fully, control system control presssure setting device switched to second force value with the pressure of cocked cylinder, and main transformer width of cloth elevator continues to receive steel rope, places on the crawler crane main platform up to main amplitude mast.
9. the secondary pressure method of adjustment of crawler crane main amplitude mast cocked cylinder secondary pressure adjustment system according to claim 8, it is characterized in that, described control system comprises position detecting device and controller, it detects the current position of cocked cylinder by position detecting device, and controller receives control presssure setting device switch pressure value behind the corresponding position signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102360747A CN101885450B (en) | 2010-07-26 | 2010-07-26 | Crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102360747A CN101885450B (en) | 2010-07-26 | 2010-07-26 | Crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and method thereof |
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| Publication Number | Publication Date |
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| CN101885450A true CN101885450A (en) | 2010-11-17 |
| CN101885450B CN101885450B (en) | 2012-05-30 |
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| CN2010102360747A Expired - Fee Related CN101885450B (en) | 2010-07-26 | 2010-07-26 | Crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502443A (en) * | 2011-10-11 | 2012-06-20 | 中联重科股份有限公司 | Method and device for controlling secondary hoisting of crane winch |
| CN102674158A (en) * | 2012-03-22 | 2012-09-19 | 上海三一科技有限公司 | Crane derrick electric control system and crane including same |
| CN102730581A (en) * | 2012-06-29 | 2012-10-17 | 上海三一科技有限公司 | Main luffing mast rope collection operating device and crane including same |
| CN103342288A (en) * | 2013-07-24 | 2013-10-09 | 徐工集团工程机械股份有限公司 | Mast rise and fall synchronous control system of crawler crane |
| CN112723204A (en) * | 2020-12-30 | 2021-04-30 | 中联重科股份有限公司 | Method and device for controlling rotation of crane mast and crane |
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| JP2000318982A (en) * | 1999-05-11 | 2000-11-21 | Sumitomo Constr Mach Co Ltd | Mast holding device of crane |
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| CN101618837A (en) * | 2009-07-21 | 2010-01-06 | 上海三一科技有限公司 | Installation method and device of caterpillar crane mast |
| CN101693502A (en) * | 2009-10-20 | 2010-04-14 | 上海三一科技有限公司 | Method for self-assembling and disassembling rear counterweight of crawler crane mainframe |
| CN101746677A (en) * | 2008-12-09 | 2010-06-23 | 徐州重型机械有限公司 | Crane |
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2010
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Patent Citations (6)
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| JP2000318982A (en) * | 1999-05-11 | 2000-11-21 | Sumitomo Constr Mach Co Ltd | Mast holding device of crane |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502443A (en) * | 2011-10-11 | 2012-06-20 | 中联重科股份有限公司 | Method and device for controlling secondary hoisting of crane winch |
| CN102502443B (en) * | 2011-10-11 | 2014-12-24 | 中联重科股份有限公司 | Method and device for controlling secondary hoisting of crane winch |
| CN102674158A (en) * | 2012-03-22 | 2012-09-19 | 上海三一科技有限公司 | Crane derrick electric control system and crane including same |
| CN102730581A (en) * | 2012-06-29 | 2012-10-17 | 上海三一科技有限公司 | Main luffing mast rope collection operating device and crane including same |
| CN103342288A (en) * | 2013-07-24 | 2013-10-09 | 徐工集团工程机械股份有限公司 | Mast rise and fall synchronous control system of crawler crane |
| CN103342288B (en) * | 2013-07-24 | 2015-08-19 | 徐工集团工程机械股份有限公司 | Caterpillar crane mast rises and falls synchronous control system |
| CN112723204A (en) * | 2020-12-30 | 2021-04-30 | 中联重科股份有限公司 | Method and device for controlling rotation of crane mast and crane |
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| Publication number | Publication date |
|---|---|
| CN101885450B (en) | 2012-05-30 |
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