CN101723264A - Telescopic boom detecting device and a crane with same - Google Patents
Telescopic boom detecting device and a crane with same Download PDFInfo
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- CN101723264A CN101723264A CN200910250721A CN200910250721A CN101723264A CN 101723264 A CN101723264 A CN 101723264A CN 200910250721 A CN200910250721 A CN 200910250721A CN 200910250721 A CN200910250721 A CN 200910250721A CN 101723264 A CN101723264 A CN 101723264A
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- telescopic boom
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Abstract
The invention relates to a telescopic boom detecting device which comprises at least one first detecting block arranged on each telescopic boom and a plurality of first detecting switches of a fixed device arranged on a telescopic oil cylinder or connected with the telescopic oil cylinder. Each detecting block can be detected by the first detecting switch corresponding to the detecting block; and the arrangement and combination mode of the first detecting blocks arranged on each telescopic boom is different from that of the first detecting blocks arranged on the other telescopic booms, therefore, when the first detecting blocks arranged on an arbitrary telescopic boom enter into the detection zone of the first detecting switches, all the first detecting switches generate an identification field corresponding the current boom position. The invention simultaneously also relates to a crane with the telescopic boom detecting device.
Description
Technical field
The present invention relates to a kind of telescopic boom detecting and a kind of hoisting crane with this device.
Background technology
Along with the fast development that Chinese national economy is built, various heavy constructions are speeded up the construction.Increase the demand order benefit of hoister in large tonnage the camp site, also more and more higher to the requirement of crane arm length and lift heavy weight.At present, the car hosit of long arm, big lift heavy amount or the full ground hoisting crane overwhelming majority all are the flexible technology of single telescopic oil cylinder multi-arm joint that adopts.
An important technology of the flexible technology of single telescopic oil cylinder multi-arm joint is the arm position of detecting telescopic boom, so that according to accurately inserting and extract cylinder arm pin when the forearm position.When telescopic boom joint number order more after a little while, can adopt the corresponding one by one technology that detects of detector switch and telescopic boom joint.This kind detection scheme is comparatively simple and reliable.But when the telescopic boom joint number increased, the detector switch number is corresponding to be increased, and telescopic boom joint number order brings more complex working conditions when increasing, in requisition for more detector switch.The interior limited space of arm this moment has seriously restricted the installation of detector switch, and the mutual interference of detector switch detection signal also becomes frequently simultaneously, and has increased the installation complexity of master cock.
Summary of the invention
Therefore, the objective of the invention is to propose a kind of telescopic boom detecting, can detect with the flexible situation of less detector switch, save the installing space in the telescopic boom simultaneously more telescopic boom joint by this detecting device.This telescopic boom detecting is particularly useful for the more more hoisting crane of multi-expansion arm of large-tonnage.
First purpose of the present invention realizes that by a kind of telescopic boom detecting wherein, telescopic boom comprises a plurality of telescopic boom joints, and telescopic boom detecting has: be arranged at least one the first detection piece on each telescopic boom joint; And be arranged on the telescopic oil cylinder or with anchor fitting that telescopic oil cylinder links to each other on a plurality of first detector switches, each first detection piece can be detected by its cooresponding first detector switch respectively, wherein, the permutation and combination method that is arranged on the first detection piece on first on each telescopic boom joint permutation and combination method that detects piece and the telescopic boom joint that is arranged on other is different, thereby when the first detection piece on arbitrary telescopic boom joint enters into the surveyed area of first detector switch, the common identifying information group that produces corresponding to current arm position of each first detector switch.According to the present invention, only just can judge and work as the forearm position, thereby significantly reduce the quantity of detector switch, and then reduce quantity and the length that is arranged in the wire harness in the telescopic boom according to the first different permutation and combination method that detects piece.
According to a preferred design plan of the present invention, described detecting device also have be arranged on the telescopic oil cylinder or with anchor fitting that telescopic oil cylinder links to each other on second detector switch and corresponding with the position of second detector switch, be arranged on second on each telescopic boom joint and detect piece, thereby produce the pin position identifying information of identification latch position by second detector switch.
According to a preferred design plan of the present invention, not being all of permutation and combination method that first on each telescopic boom joint detects piece is arranged on first on each telescopic boom joint and detects the quantity of piece and/or the difference of position.So just can realize different between the last first detection piece of different telescopic booms joint in simple mode.
According to a design plan of the present invention, each telescopic boom joint all is provided with one second and detects piece at the same position place, wherein second detects the length of piece on the flexible direction of telescopic boom than the detection of first on same telescopic boom piece weak point.First detect piece because second detects being shorter in length than of piece,, can not detect the second detection piece when telescopic boom stretches out or withdraw and first detector switch detects when entering first of its surveyed area and detecting piece.When the second detection piece entered the surveyed area of second detector switch, correspondingly the telescopic boom joint just moved to the latch position, just can determine the latch position thereby detect the second detection piece by second detector switch.
According to a preferred design of the present invention, the detector switch straight line is arranged on the telescopic oil cylinder abreast or with anchor fitting that telescopic oil cylinder links to each other on be very favorable.In order to obtain the location information of telescopic boom joint, the position of detector switch must be corresponding with the position of relevant detection piece.Therefore, first, second detects piece and also is arranged on point-blank on each telescopic boom joint corresponding to the position of first, second detector switch, thereby first, second detector switch and first, second layout that detects piece can both be realized in simple mode.
In a preferred design plan of the present invention, first, second detector switch is near switch.Certainly, first, second detector switch also can be the switch that is fit to carry out any other type of position measurement, sensor or the like.
In a preferred design plan of the present invention, detecting device also has control unit.This control unit is connected with first, second detector switch by data bus, to receive identifying information group and pin position identifying information.Wherein, this control unit can be arranged in the telescopic boom or telescopic oil cylinder on.In a preferred design plan of the present invention, data bus is the CAN bus.The CAN bus all has irreplaceable advantage on reliability of data communication, real-time and alerting ability.Further reduce the quantity of the wire harness in telescopic boom by the application data bus, reduced the complexity of wiring.Certainly, control unit also can be connected with each detector switch by conventional single line.
In a preferred design plan of the present invention, when identifying information group and pin position identifying information are binary encoding, be very favorable.When detecting, first, second detector switch produces the signal of logic state when corresponding first, second detects piece for " 1 ", do not produce the signal of logic state when first, second detector switch detects when first, second detects piece, and these signals are organized as the binary encoding of being made up of logic state " 1 " and/or " 0 " for " 0 ".This binary encoding helps control unit that the telescopic boom position is judged very much.Certainly, in design plan of the present invention, identifying information also can be the signal by the other types of first, second detector switch generation.These signals can be transferred to control unit, and judge current arm position by control unit according to these signal synthesis.
Another object of the present invention is a kind of hoisting crane, and this hoisting crane has the telescopic boom detecting of the above-mentioned type.Can adopt less detector switch that the current arm position of hoisting crane is detected by using this device, and save the interior installing space of telescopic boom of hoisting crane.
Description of drawings
Next, the present invention is described in detail with reference to accompanying drawing and in conjunction with specific embodiments of the invention.Shown in the figure:
Fig. 1 is the schematic sectional view according to telescopic boom detecting of the present invention,
Fig. 2 is the scheme drawing that detects the arrangement of piece on the telescopic boom joint.
The specific embodiment
Figure 1 illustrates according to telescopic boom detecting of the present invention, this detecting device detects piece 7,8,10,11,12 by first detector switch 1,2,4,5,6, second detector switch 3 and first and the second detection piece 9 constitutes, wherein first, second detector switch 1,2,3,4,5,6 is installed on the telescopic oil cylinder 14, and first, second detects piece 7,8,9,10,11,12 and is installed on the telescopic boom 13.
In Fig. 1, first detector switch 1,5 and second detector switch, 3 straight lines are arranged on the left side of telescopic oil cylinder 14 abreast, and the first other detector switch 2,4,6 then straight line is arranged on the right side of telescopic oil cylinder 14 abreast.Wherein second on each telescopic boom joint detects piece 9 all regularly corresponding to second detector switch 3 that is used to detect the latch position.The position that the first detection piece 7,8,10,11,12 corresponds respectively to first detector switch 1,2,4,5,6 is arranged on the telescopic boom 13 point-blank.
Figure 2 illustrates the scheme drawing of the arrangement of the first detection piece on telescopic boom, wherein telescopic boom 13 comprises basic arm 15, the second arms joint the 16, the 3rd arm joint the 17, the 4th arm joint the 18, the 5th arm joint the 19, the 6th arm joint the 20, the 7th arm joint the 21 and the 8th arm joint 22.
All solid line squares are the detection piece 24 on the telescopic boom face to face in Fig. 2, and all dotted line squares are the detection piece 23 that is provided with on the opposite side of telescopic boom one side of solid line square.
In an embodiment of the present invention, the permutation and combination method that detects piece on every joint telescopic boom is all different, and corresponding detector switch is also all different in the identifying information group of each arm position.Detected different identifying information group is transferred to control unit by data bus in different telescopic booms position.Control unit judges this identifying information group, and shows different telescopic boom positions according to judged result on display unit, and makes a response.
In order better to set forth the present invention, in conjunction with the embodiments technical conceive of the present invention is described with reference to the accompanying drawings.
Save the crane of telescopic booms as objective for implementation of the present invention with single telescopic oil cylinder eight.This project hoisting crane has eight kinds of arm positions to need detection and location, comprising: seven joint telescopic boom arm positions except that basic arm 15, the latch position when the forearm position.If adopt existing public technology scheme, on the telescopic oil cylinder or with anchor fitting that telescopic oil cylinder links to each other on need to install eight detector switches.
The present invention installs three detector switches 1,2,3,4,5,6 abreast at each straight line of telescopic oil cylinder both sides.Install first and detect piece at corresponding first detector switch 1 and 4 places on second telescopic boom joint, the 3rd telescopic boom joint goes up corresponding first detector switch 1 and the first detection piece is installed at 5 places, the 4th telescopic boom joint goes up corresponding first detector switch 1 and the first detection piece is installed at 6 places, the 5th telescopic boom joint goes up corresponding first detector switch 2 and the first detection piece is installed at 4 places, the 6th telescopic boom joint goes up corresponding first detector switch 2 and the first detection piece is installed at 5 places, the 7th telescopic boom joint goes up corresponding first detector switch 2 and the first detection piece is installed at 6 places, the 8th telescopic boom joint is gone up corresponding first detector switch 2, install first and detect piece at 4 and 6 places, for detecting the latch position, install second and detect piece at corresponding second detector switch 3 places.
The detection signal of six detector switches transmits by data bus, when arbitrary detector switch detects the detection piece, this road detection signal transmits binary digital quantity " 1 ", do not detect and then transmit binary digital quantity 0, thus the identifying information group that acquisition is made up of binary digital quantity " 1 " and/or " 0 ".In an embodiment of the present invention, this identifying information group has 8 binary codings: for example on behalf of first detector switch 1,00000001 signal detect the position signal of the first detection piece, and on behalf of detector switch 1 to 6,00111111 signal all detect the position signal that detects piece.High two reservations are beneficial to controller and calculate.
In the present embodiment, the coding example is as follows:
From above-mentioned chart as can be seen, detector switch 1,2,3,4,5,6 all is used to detect different detection pieces, by above detection and coded system, when detecting different telescopic boom positions, transmit different binary digital quantities, can accurately judge the arm position of telescopic boom by this different binary digital quantity.
By second and third, the combinations of four, five, six, seven joint arm position identifying information groups and latch position identification informations can insert and extract cylinder pin and/or arm pin exactly in different telescopic booms position.
From above coding sample table as can be seen, if it is 00010100 that a certain moment control unit detects the data that transmit on the data bus, five joint arm positions 19 so just can have been determined to be at present, when these arm joint 19 continuation are mobile, control unit detects the data 00011100 that transmit on the data bus, so just can judge the latch position that has been in five joint arms at present, the action of going forward side by side has been done, and for example plugs cylinder pin or arm pin.
Although illustrated and described specific embodiment herein, it should be appreciated by those skilled in the art that under the situation that does not deviate from scope of the present invention, various replacements and/or be equal to realization can substitute shown in and described these specific embodiments.The application is intended to cover any change and various specific embodiments discussed herein.Therefore, the present invention is only limited by claim and equivalent thereof.
Claims (11)
1. telescopic boom detecting, wherein, telescopic boom (13) comprises a plurality of telescopic boom joints (15,16,17,18,19,20,21,22), it is characterized in that described detecting device has: be arranged at least one the first detection piece (7,8,10,11,12) on each telescopic boom joint (15,16,17,18,19,20,21,22); And be arranged on that telescopic oil cylinder (14) is gone up or with anchor fitting that described telescopic oil cylinder (14) links to each other on a plurality of first detector switches (1,2,4,5,6), each described first detection piece (7,8,10,11,12) can be respectively by its cooresponding first detector switch (1,2,4,5,6) detect, wherein, be arranged on described first on each described telescopic boom joint and detect piece (7,8,10,11,12) first on permutation and combination method and the described telescopic boom joint that is arranged on other detects piece (7,8,10,11,12) permutation and combination method difference, thereby the first detection piece on arbitrary telescopic boom joint enters into described first detector switch (1,2,4,5,6) in the time of in the surveyed area, each described first detector switch (1,2,4,5,6) the common identifying information group that produces corresponding to current arm position.
2. telescopic boom detecting according to claim 1, it is characterized in that not being all of described permutation and combination method is arranged on first on each described telescopic boom joint (15,16,17,18,19,20,21,22) and detects the quantity of piece (7,8,10,11,12) and/or the difference of position.
3. telescopic boom detecting according to claim 1, it is characterized in that, described detecting device also have second detector switch (3) that is arranged on the described telescopic oil cylinder (14) and corresponding with the position of described second detector switch (3), be arranged on second on each telescopic boom joint and detect piece (9), thereby produce the pin position identifying information of identification latch position by described second detector switch (3).
4. telescopic boom detecting according to claim 3 is characterized in that, described identifying information group and described pin position identifying information are binary encodings.
5. telescopic boom detecting according to claim 3, it is characterized in that, each described telescopic boom joint (15,16,17,18,19,20,21,22) all is provided with one second and detects piece (9) at the same position place, it is short that wherein said second length that detects piece (9) detects piece than described first on the same telescopic boom joint.
6. telescopic boom detecting according to claim 1 is characterized in that, described first detector switch (1,2,4,5,6), described second detector switch (3) straight line are arranged on the described telescopic oil cylinder (14) abreast.
7. telescopic boom detecting according to claim 6 is characterized in that, described first detector switch (1,2,4,5,6), described second detector switch (3) are near switch.
8. telescopic boom detecting according to claim 7, it is characterized in that the described first detection piece (7,8,10,11,12), the described second detection piece (9) are arranged on each described telescopic boom joint (15,16,17,18,19,20,21,22) point-blank corresponding to the position of described first detector switch (1,2,4,5,6), described second detector switch (3).
9. telescopic boom detecting according to claim 1, it is characterized in that, described detecting device also has control unit, described control unit is connected with described first detector switch (1,2,4,5,6), described second detector switch (3) by data bus, to receive described identifying information group and described pin position identifying information.
10. telescopic boom detecting according to claim 9 is characterized in that, described control unit is arranged on described telescopic boom (13) or the telescopic oil cylinder (14).
11. hoisting crane that has according to each described telescopic boom detecting in the claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102507217A CN101723264B (en) | 2009-12-09 | 2009-12-09 | Telescopic boom detecting device and a crane with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102507217A CN101723264B (en) | 2009-12-09 | 2009-12-09 | Telescopic boom detecting device and a crane with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101723264A true CN101723264A (en) | 2010-06-09 |
| CN101723264B CN101723264B (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102507217A Expired - Fee Related CN101723264B (en) | 2009-12-09 | 2009-12-09 | Telescopic boom detecting device and a crane with same |
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| Country | Link |
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| CN (1) | CN101723264B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863957A (en) * | 2013-12-31 | 2014-06-18 | 三一汽车起重机械有限公司 | Auxiliary arm forming mode identification method and system and engineering machinery |
| CN104944302A (en) * | 2015-04-22 | 2015-09-30 | 徐州重型机械有限公司 | Extending arm detection device, telescopic arm crane and method using extending arm detection device and telescopic arm crane |
| CN105197820A (en) * | 2014-10-16 | 2015-12-30 | 徐州重型机械有限公司 | Arm position detection device, method and crane |
| CN105217496A (en) * | 2014-12-03 | 2016-01-06 | 徐州重型机械有限公司 | Arm level detecting apparatus, single-cylinder bolt type telescopic boom and hoisting crane |
| CN105417409A (en) * | 2015-12-29 | 2016-03-23 | 中联重科股份有限公司 | Detection method, device and system for single cylinder bolt type telescopic boom and engineering machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201165454Y (en) * | 2008-01-25 | 2008-12-17 | 徐州重型机械有限公司 | Arm support sequential telescopic security control apparatus |
-
2009
- 2009-12-09 CN CN2009102507217A patent/CN101723264B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863957A (en) * | 2013-12-31 | 2014-06-18 | 三一汽车起重机械有限公司 | Auxiliary arm forming mode identification method and system and engineering machinery |
| CN103863957B (en) * | 2013-12-31 | 2016-05-11 | 三一汽车起重机械有限公司 | The recognition methods of auxiliary building form and system and engineering machinery |
| CN105197820A (en) * | 2014-10-16 | 2015-12-30 | 徐州重型机械有限公司 | Arm position detection device, method and crane |
| CN105197820B (en) * | 2014-10-16 | 2017-08-08 | 徐州重型机械有限公司 | A kind of arm level detecting apparatus, method and crane |
| CN105217496A (en) * | 2014-12-03 | 2016-01-06 | 徐州重型机械有限公司 | Arm level detecting apparatus, single-cylinder bolt type telescopic boom and hoisting crane |
| CN104944302A (en) * | 2015-04-22 | 2015-09-30 | 徐州重型机械有限公司 | Extending arm detection device, telescopic arm crane and method using extending arm detection device and telescopic arm crane |
| CN104944302B (en) * | 2015-04-22 | 2017-03-08 | 徐州重型机械有限公司 | A kind of semi-girder detection means, telescopic arm crane and its method |
| CN105417409A (en) * | 2015-12-29 | 2016-03-23 | 中联重科股份有限公司 | Detection method, device and system for single cylinder bolt type telescopic boom and engineering machine |
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| Publication number | Publication date |
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| CN101723264B (en) | 2012-05-09 |
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