CN102735172A - Boom length measuring device, boom length measuring method and telescopic boom - Google Patents
Boom length measuring device, boom length measuring method and telescopic boom Download PDFInfo
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- CN102735172A CN102735172A CN2012102110740A CN201210211074A CN102735172A CN 102735172 A CN102735172 A CN 102735172A CN 2012102110740 A CN2012102110740 A CN 2012102110740A CN 201210211074 A CN201210211074 A CN 201210211074A CN 102735172 A CN102735172 A CN 102735172A
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Abstract
The invention provides a boom length measuring device, which is used for measuring the length of a telescopic boom. The telescopic boom comprises at least two boom sections and a telescopic oil cylinder. The boom length measuring device additionally comprises a non-contact length measuring sensor and a processor, wherein the non-contact length measuring sensor is used for measuring the elongation of the telescopic oil cylinder in the extension and retraction process of the telescopic boom; and the processor is used for calculating the length of the telescopic boom according to the initial length of the telescopic boom and the elongation of the telescopic oil cylinder measured by the non-contact length measuring sensor. Correspondingly, the invention additionally provides a boom length measuring method and the telescopic boom. Through the boom length measuring device, the boom length measuring method and the telescopic boom, the boom length measuring accuracy can be improved, damages are not apt to be caused and the reliability is high.
Description
Technical field
The present invention relates to the brachium field of measuring technique, in particular to a kind of brachium measurement mechanism and measuring method, a kind of telescopic jib.
Background technology
The straight arm type crane generally adopts the telescopic arm form, and very important to the calculating of the stability of hanging loading capability and crane because of the jib length overall, institute thinks and guarantees that job safety and efficient need measure the jib length overall.
What measurement was adopted to the telescopic arm total length at present is backguy length measurement sensor mode; For example; The reel of linear transducer partly is installed on the fixed arm; The fixing backguy of surveying length of pull bar on the telescopic arm of distal-most end, the long backguy of winding roll survey rolls out during the arm elongation, and backguy is withdrawn under the effect of spring force during the arm withdrawal.The stretching motion of arm is mapped with the long backguy campaign of survey, and is general through carrying out gear-driven conversion to the motion of backguy, just can measure the length of backguy, and then detect the current total length of jib.In order to satisfy the needs of measurement range, the backguy length of length measurement sensor should be greater than the maximum maximum elongation amount of jib, to satisfy the needs of measurement range.
Above-described telescopic arm is measured the length mode and is had following shortcoming:
1) in the reel length measurement sensor, the long backguy of the survey of arranging of each layer of winding roll is limited, the backguy multilayer of need arranging, and the regularity of arranging is difficult to control, and measuring accuracy cannot say for sure card;
Winding roll inner spring power was increasing when 2) backguy was pulled out, and the backguy time has been grown and has been prone to wear out, and under the effect of wind spring power, is prone to snap, and linear measure longimetry was lost efficacy.
3) this kind metering system is because of protection question, and backguy is interfered damage with arm inner structure part easily and lost efficacy.
Therefore, need a kind of new brachium measuring technique, can improve the measuring accuracy of brachium, and not fragile, and reliability is high.
Summary of the invention
Technical matters to be solved by this invention is, a kind of new brachium measuring technique is provided, and can improve the measuring accuracy of brachium, and not fragile, and reliability is high.
In view of this; The invention provides a kind of brachium measurement mechanism; Be used to measure the length of telescopic jib; Said telescopic jib comprises at least two joint jib and telescopic oil cylinders, and said brachium measurement mechanism also comprises: contactless length measurement sensor is used to measure the elongation at telescopic oil cylinder described in the said telescopic jib telescopic process; Processor, the elongation of the said telescopic oil cylinder that records according to the initial length and the said contactless length measurement sensor of said telescopic jib calculates the length of said telescopic jib.
Particularly; For example, said contactless length measurement sensor comprises transceiver and reverberator, and wherein: said transceiver is installed on the cylinder bar of said telescopic oil cylinder; Said reverberator is installed on the cylinder barrel of said telescopic oil cylinder; Perhaps, said transceiver is installed on the cylinder barrel of said telescopic oil cylinder, and said reverberator is installed on the cylinder bar of said telescopic oil cylinder; Said transceiver sends light beam to said reverberator, and said light beam is back to said transceiver after said reflector reflects.
In this technical scheme; Measure the elongation of telescopic oil cylinder through contactless length measurement sensor, thereby draw the elongation of jib, do not adopt the metering system of spiral; Can avoid being difficult to arranging neat line and problem that measuring accuracy that cause reduces has improved measuring accuracy effectively; And, adopting contactless length measurement sensor, device is difficult for aging, and reliability is high; In addition, non-contacting sensor takes up room little, is difficult for interfering with interior other parts of jib, has prolonged serviceable life, has reduced cost.
Preferably, said processor also is used for, and respectively saves arm when the front stretching status data according to what the said contactless length measurement sensor that receives recorded that the elongation data generate said telescopic jib; Said brachium measurement mechanism also comprises display, is connected to said processor, the total length of the said telescopic jib that said display is used to show that said processor calculates and/or described when the front stretching state.
In this technical scheme, display is used for the total length of the telescopic jib that video-stream processor calculates, and is convenient to the total length that the operator controls current arm support in real time, to guarantee job safety and operating efficiency better; The whole flexible state that respectively saves arm all is presented on the display, can the flexible state of jib be represented to the operator better, make the operator grasp current jib state better, to guarantee job safety and operating efficiency better.
The present invention also provides a kind of telescopic jib; Comprise at least two joint arm and telescopic oil cylinders; Also comprise each described brachium measurement mechanism in the technique scheme; Said brachium measurement mechanism is used to measure the length of telescopic jib, and described telescopic jib obviously should have the beneficial effect of length measurement sensor in the technique scheme.
Preferably; Said telescopic jib comprises first segment arm, the second joint arm, the 3rd joint arm and is arranged on the mechanical lock that the said second joint arm and the said the 3rd saves between the arm; Wherein, The cylinder barrel of said telescopic oil cylinder is fixed on the afterbody of said the 3rd joint arm, and the cylinder bar of said telescopic oil cylinder is provided with the cylinder pin, and the afterbody of said first segment arm is provided with the first cylinder pin-and-hole; The afterbody of the said second joint arm is provided with the second cylinder pin-and-hole, and said cylinder pin cooperates the afterbody and said second that said cylinder bar is fixed on said first segment arm to save the afterbody of arm respectively with the said first cylinder pin-and-hole, the said second cylinder pin-and-hole; And said telescopic jib also comprises: first detector switch, and said first detector switch is opened in the time of on the fixing said first segment arm of said cylinder bar; Second detector switch, said second detector switch is opened in the time of on the fixing said second joint arm of said cylinder bar; And; Said processor also is used for;, said first detector switch records first elongation of said telescopic oil cylinder when being in open mode; When said second detector switch is in open mode, record second elongation of said telescopic oil cylinder, calculate the total length of said telescopic jib according to said initial length, said first elongation, said second elongation.
In technical scheme, the brachium measurement mechanism that provides among the present invention is applied in this kind telescopic jib, through the cylinder pin can being fixed on of cylinder bar is different the position on, the length of jib is carried out areal survey, thereby obtains the whole length of jib.
Preferably; Described telescopic jib comprises at least four joint arms and the telescoping mechanisms is made up of rope and fixed pulley, and said telescoping mechanism is used for when said telescopic oil cylinder drives said the 3rd joint arm with respect to the said second joint arm motion, driving said the 3rd joint arm arm afterwards and stretches.
In this technical scheme; For this kind jib; Since the cylinder bar be fixedly arranged on the second joint arm afterbody when driving the 3rd joint arm with respect to the second joint arm motion the 3rd joint arm and after jib can synchronization telescope; So second stroke that this moment, contactless length measurement sensor recorded then need multiply by the arm joint number of synchronization telescope; Promptly with the elongation of first elongation as the second joint arm, the total elongation that calculates the 3rd joint arm in the telescopic jib and save according to the arm joint number of second elongation and telescopic jib with postbrachium.
According to a further aspect in the invention; The present invention also provides a kind of jib length measurement method; Be used to measure the length of telescopic jib; Said telescopic jib comprises at least two joint jib and telescopic oil cylinders, and said jib length measurement method comprises: step 402, measure elongation with contactless length measurement sensor at telescopic oil cylinder described in the said telescopic jib telescopic process; Step 404, the elongation of the said telescopic oil cylinder that records according to the initial length and the said contactless length measurement sensor of said telescopic jib calculates the length of said telescopic jib.
In this technical scheme; Measure the elongation of telescopic oil cylinder through contactless length measurement sensor, thereby draw the elongation of jib, do not adopt the metering system of spiral; Can avoid being difficult to arranging neat line and problem that measuring accuracy that cause reduces has improved measuring accuracy effectively; And, adopting contactless length measurement sensor, device is difficult for aging, and reliability is high; In addition, non-contacting sensor takes up room little, is difficult for interfering with interior other parts of jib, has prolonged serviceable life, has reduced cost.
Preferably; Said telescopic jib comprises first segment arm, the second joint arm, the 3rd joint arm and is arranged on the mechanical lock that the said second joint arm and the said the 3rd saves between the arm; Wherein, the cylinder barrel of said telescopic oil cylinder is fixed on the afterbody of said the 3rd joint arm, and the cylinder bar of said telescopic oil cylinder is provided with the cylinder pin; And the afterbody of said first segment arm is provided with the first cylinder pin-and-hole; The afterbody of the said second joint arm is provided with the second cylinder pin-and-hole, and said cylinder pin cooperates the afterbody or said second that said cylinder bar is fixed on said first segment arm to save the afterbody of arm respectively with the said first cylinder pin-and-hole, the said second cylinder pin-and-hole, and said step 402 specifically comprises; Measure first elongation of said telescopic oil cylinder when said cylinder bar is fixed on the said first segment arm, measure second elongation of said telescopic oil cylinder when said cylinder bar is fixed on the said second joint arm; Said step 404 specifically comprises, according to said initial length L
1, the said first elongation L
2, the said second elongation L
3Calculate the total length L of said telescopic jib, L=L
1+ L
2+ 3L
3
In technical scheme, the brachium measurement mechanism that provides among the present invention is applied in this kind telescopic jib, through the cylinder pin can being fixed on of cylinder bar is different the position on, the length of jib is carried out areal survey, thereby obtains the whole length of jib.
In sum; Measure the elongation of telescopic oil cylinder through contactless length measurement sensor, thereby draw the elongation of jib, do not adopt the metering system of spiral; Can avoid being difficult to arranging neat line and problem that measuring accuracy that cause reduces has improved measuring accuracy effectively; And, adopting contactless length measurement sensor, device is difficult for aging, and reliability is high; In addition, non-contacting sensor takes up room little, is difficult for interfering with interior other parts of jib, has prolonged serviceable life, has reduced cost.
Description of drawings
Fig. 1 is the telescopic jib synoptic diagram under the state in first according to first embodiment of the invention;
Fig. 2 is the telescopic jib synoptic diagram under the state in second according to first embodiment of the invention;
Fig. 3 is a block diagram of measuring relevant apparatus among Fig. 1 in the telescopic jib with brachium;
Fig. 4 is the process flow diagram according to the jib length measurement method of second embodiment of the invention.
Wherein, the corresponding relation between Reference numeral and the component names is among Fig. 1 to Fig. 3:
1 processor, 2 contactless length measurement sensors, 3 telescopic oil cylinders, 4 displays,
21 transceivers, 22 reverberators, 31 cylinder bars, 32 cylinder barrels, 33 cylinder pins,
50 mechanical locks, 51 first segment arms, 52 second joint arms, 53 the 3rd joint arms,
54 the 4th joint arms, 55 the 5th joint arms, 56 arm pins, 61 first detector switches,
62 second detector switches, 7 ropes, 8 fixed pulleys.
Embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with accompanying drawing and embodiment.
A lot of details have been set forth in the following description so that make much of the present invention; But; The present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention does not receive the restriction of following disclosed specific embodiment.
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.Need to prove that under the situation of not conflicting, the application's embodiment and the characteristic among the embodiment can make up each other.
Fig. 1 is the telescopic jib synoptic diagram under the state in first according to first embodiment of the invention; Fig. 3 is a block diagram of measuring relevant apparatus among Fig. 1 in the telescopic jib with brachium.
Brachium measurement mechanism in the present embodiment is installed on the telescopic jib as shown in figures 1 and 3; This brachium measurement mechanism is used to measure the length of telescopic jib; Telescopic jib comprises at least two joint jib and telescopic oil cylinders 3; The brachium measurement mechanism also comprises: contactless length measurement sensor 2 is used for measuring the elongation at telescopic jib telescopic process telescopic oil cylinder 1; Processor 1, the elongation of the telescopic oil cylinder 1 that records according to the initial length and the contactless length measurement sensor 2 of telescopic jib calculates the length of telescopic jib.
Wherein the implementation of non-contact sensor 2 can have multiple, for example:
Contactless length measurement sensor 2 comprises transceiver 21 and reverberator 22; Wherein: transceiver 21 is installed on the cylinder bar 31 of telescopic oil cylinder 3; Reverberator 22 is installed on the cylinder barrel 32 of telescopic oil cylinder 3; Perhaps, transceiver 21 is installed on the cylinder barrel 32 of telescopic oil cylinder 3, and reverberator 22 is installed on the cylinder bar 31 of telescopic oil cylinder 3; Transceiver 21 sends light beam to reverberator 22, and light beam is back to transceiver 21 after reverberator 22 reflection, judges the distance between transceiver 21 and the reverberator 22 through the mistiming that transmits and receives of light beam, and effectively simple, reliability is high.
Obviously, can also comprise transmitter and receiver by contactless length measurement sensor 2, receiver is used to receive the light beam that transmitter sends; Transmitter is installed on the cylinder bar of oil cylinder, and receiver is installed on the cylinder barrel of telescopic oil cylinder, and perhaps, transmitter is installed on the cylinder barrel of telescopic oil cylinder, and receiver is installed on the cylinder bar of telescopic oil cylinder.
In addition; Processor 1 can required processing data seldom, it is very little to take up room, so processor 1 can be directly installed on the contactless length measurement sensor 2; Can certainly be provided with in addition, through wired or wireless mode all can and contactless length measurement sensor 2 between carry out data transmission.
In this technical scheme; Measure the elongation of telescopic oil cylinder 3 through contactless length measurement sensor 2, thereby draw the elongation of jib, do not adopt the metering system of spiral; Can avoid being difficult to arranging neat line and problem that measuring accuracy that cause reduces has improved measuring accuracy effectively; And, adopting contactless length measurement sensor 2, device is difficult for aging, and reliability is high; In addition, non-contacting sensor 2 takes up room little, is difficult for interfering with interior other parts of jib, has prolonged serviceable life, has reduced cost.
As a kind of preferred implementation; The brachium measurement mechanism also comprises display 4, is connected to processor 1, and display 4 is used for the total length of the telescopic jib that video-stream processor 1 calculates; Be convenient to the total length that the operator controls current arm support in real time, to guarantee job safety and operating efficiency better.
Further, processor 1 also is used for, and what the elongation data that record according to the contactless length measurement sensor 2 that receives generated telescopic jib respectively saves arm when the front stretching status data, display 4 be used for that video-stream processor 1 calculates when the front stretching state.In this technical scheme, the whole flexible state that respectively saves arm all is presented on the display 1, can the flexible state of jib be represented to the operator better, make the operator grasp current jib state better, to guarantee job safety and operating efficiency better.
Each described brachium measurement mechanism in the technique scheme is applied in the telescopic jib; Can obtain the embodiment of telescopic jib among the present invention; Described brachium measurement mechanism is used to measure the length of telescopic jib; Described telescopic jib comprises at least two joint arm and telescopic oil cylinders, and it obviously should have the corresponding beneficial effect of the brachium measurement mechanism described in the technique scheme.
As a kind of preferred implementation; Telescopic jib comprises that first segment arm 51, the second joint arm the 52, the 3rd save arm 53 and be arranged on the mechanical lock 50 that the second joint arm 52 and the 3rd saves between the arm 53; Wherein, The cylinder barrel 32 of telescopic oil cylinder 3 is fixed on the afterbody of the 3rd joint arm 53, and the cylinder bar 31 of telescopic oil cylinder 3 is provided with cylinder pin 33, and the afterbody of first segment arm 51 is provided with the first cylinder pin-and-hole 511; The afterbody of the second joint arm 52 is provided with the second cylinder pin-and-hole 521, and cylinder pin 33 cooperates the afterbody and second that cylinder bar 31 is fixed on first segment arm 51 to save the afterbody of arm 52 respectively with the first cylinder pin-and-hole 511, the second cylinder pin-and-hole 521; And telescopic jib also comprises: first detector switch 61, cylinder bar 31 fixedly first segment arm 51 last time first detector switch 61 open; Second detector switch 62 is opened at cylinder bar 31 fixing second joint arm 52 last time second detector switches 62; And; Processor 1 also is used for;, first detector switch 61 records first elongation of telescopic oil cylinder 3 when being in open mode; When second detector switch 62 is in open mode, record second elongation of telescopic oil cylinder 3, calculate the total length of telescopic jib according to initial length, first elongation, second elongation.
Wherein, the structure more specifically of this kind telescopic jib and implementation are found in the application documents that the patent No. is CN200920293526.
In addition; The implementation of first detector switch 61 and second detector switch 62 for example can for; Use touch switch, when cylinder bar 31 was fixedly arranged on the afterbody of first segment arm 51, first detector switch 61 contacted with another part of corresponding first detector switch 61; Thereby trigger first detector switch, realize the judgement of cylinder bar 31 positions; The implementation of second detector switch in like manner.Certainly; The implementation of detector switch can also have alternate manner; For example detector switch adopts transmitter, in the relevant position of the first segment arm 51 and the second joint arm 52 receiver is set, and then when receiver receives the signal of transmitter emission, can judge the position of cylinder bar 31.
In technical scheme, the brachium measurement mechanism that provides among the present invention is applied in this kind telescopic jib, through cylinder pin 31 can being fixed on of cylinder bar 31 is different the position on, the length of jib is carried out areal survey, thereby obtains the whole length of jib.
Further, telescopic jib comprises at least four joint arms and the telescoping mechanism of being made up of rope 7 and fixed pulley 8, and the arm after telescoping mechanism is used for when telescopic oil cylinder 3 drives the 3rd joint arm 53 with respect to 52 motions of the second joint arm, driving the 3rd joint arm 53 is flexible.
Wherein, the concrete structure and the principle of the telescoping mechanism of described rope and fixed pulley composition see for details in the application documents that the patent No. is CN200920293526.
In this technical scheme; For this kind jib; Since cylinder bar 31 be fixedly arranged on second joint arm 52 afterbodys when driving the 3rd joint arm 53 with respect to 52 motions of the second joint arm the 3rd joint arm 53 and after jib can synchronization telescope; So second stroke that this moment, contactless length measurement sensor 2 recorded then need multiply by the arm joint number of synchronization telescope, promptly with the first elongation L
2As the elongation of the second joint arm 52, according to the second elongation L
3Calculate the 3rd joint arm 53 in the telescopic jib with the arm joint number of telescopic jib and with the total elongation L of postbrachium joint, L=L
1+ L
2+ 3L
3(L
1Initial length for jib).
Fig. 1 is the telescopic jib synoptic diagram under the state in first according to first embodiment of the invention; Fig. 2 is the telescopic jib synoptic diagram under the state in second according to first embodiment of the invention.
Particularly, comprise that with telescopic jib five joint arms are example:
Like Fig. 1; When cylinder bar 31 is fixedly arranged on the afterbody of first segment arm 51; This moment, mechanical lock 50 was lock between the second joint arm 52 and the 3rd joint arm 53, and making can't relative motion between the second joint arm 52 and the 3rd joint arm 53, and then the second joint arm 52 to the 5th saves arms 55 and is synchronized with the movement with the flexible of telescopic oil cylinder 3; Promptly motionless relatively between the second joint arm, 52 to the 5th joint arms 55, the elongation of telescopic oil cylinder 3 is the elongation of jib at this moment;
When telescopic oil cylinder 3 is elongated to required length, use between the 56 pairs of first segment arms 51 of arm pin and the second joint arm 52 to position, extract cylinder pin 33;
Like Fig. 2; Cylinder bar 31 is fixed to the afterbody of the second joint arm 52; Plug cylinder pin 33, open mechanical lock again, then can drive the 3rd joint arm 53 this moment when telescopic oil cylinder 3 stretches with respect to 52 motions of the second joint arm; The telescoping mechanism of being made up of rope 7 and fixed pulley 8 simultaneously drives the 4th joint arm 54 and saves arm 55 synchronization telescopes with the 5th, and then the elongation of jib is that the elongation of oil cylinder multiply by 3 at this moment;
Two parts elongation addition of the jib that records is promptly got its total elongation, and the former length of adding jib can obtain the length overall of jib.
Fig. 4 is the process flow diagram according to the jib length measurement method of second embodiment of the invention.
According to a further aspect in the invention; The present invention also provides a kind of jib length measurement method; Be used to measure the length of telescopic jib, telescopic jib comprises at least two joint jib and telescopic oil cylinders, like Fig. 4 and Fig. 1, shown in Figure 3; Jib length measurement method comprises: step 402, with the elongation of contactless length measurement sensor 2 measurements telescopic oil cylinder 1 in the telescopic jib telescopic process; Step 404, the elongation of the telescopic oil cylinder 1 that records according to the initial length and the contactless length measurement sensor 2 of telescopic jib calculates the length of telescopic jib.
In this technical scheme; Measure the elongation of telescopic oil cylinder 3 through contactless length measurement sensor 2, thereby draw the elongation of jib, do not adopt the metering system of spiral; Can avoid being difficult to arranging neat line and problem that measuring accuracy that cause reduces has improved measuring accuracy effectively; And, adopting contactless length measurement sensor 2, device is difficult for aging, and reliability is high; In addition, non-contacting sensor 2 takes up room little, is difficult for interfering with interior other parts of jib, has prolonged serviceable life, has reduced cost.
Preferably; Telescopic jib comprises that first segment arm 51, the second joint arm the 52, the 3rd save arm 53 and be arranged on the mechanical lock 50 that the second joint arm 52 and the 3rd saves between the arm 53; Wherein, the cylinder barrel 32 of telescopic oil cylinder 3 is fixed on the afterbody of the 3rd joint arm 53, and the cylinder bar 31 of telescopic oil cylinder 3 is provided with cylinder pin 33; And the afterbody of first segment arm 51 is provided with the first cylinder pin-and-hole 511; The afterbody of the second joint arm 52 is provided with the second cylinder pin-and-hole 521, and cylinder pin 33 cooperates the afterbody or second that cylinder bar 31 is fixed on first segment arm 51 to save the afterbody of arm 52 respectively with the first cylinder pin-and-hole 511, the second cylinder pin-and-hole 521, and step 402 specifically comprises; Cylinder bar 31 is fixed on first elongation of first segment arm 51 last times measurement telescopic oil cylinder 3, and cylinder bar 31 is fixed on second elongation of the second joint arm 52 last times measurement telescopic oil cylinder 3; Step 404 specifically comprises, calculates the total length of telescopic jib according to initial length, first elongation, second elongation.
In technical scheme, the brachium measurement mechanism that provides among the present invention is applied in this kind telescopic jib, through cylinder pin 31 can being fixed on of cylinder bar 31 is different the position on, the length of jib is carried out areal survey, thereby obtains the whole length of jib.
In sum; Measure the elongation of telescopic oil cylinder through contactless length measurement sensor, thereby draw the elongation of jib, do not adopt the metering system of spiral; Can avoid being difficult to arranging neat line and problem that measuring accuracy that cause reduces has improved measuring accuracy effectively; And, adopting contactless length measurement sensor, device is difficult for aging, and reliability is high; In addition, non-contacting sensor takes up room little, is difficult for interfering with interior other parts of jib, has prolonged serviceable life, has reduced cost.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. brachium measurement mechanism is used to measure the length of telescopic jib, and said telescopic jib comprises at least two joint jib and telescopic oil cylinders (3), it is characterized in that said brachium measurement mechanism also comprises:
Contactless length measurement sensor (2) is used for measuring the elongation at telescopic oil cylinder (3) described in the said telescopic jib telescopic process;
Processor (1), the elongation of the said telescopic oil cylinder (3) that records according to the initial length and the said contactless length measurement sensor (2) of said telescopic jib calculates the length of said telescopic jib.
2. brachium measurement mechanism according to claim 1 is characterized in that, said contactless length measurement sensor (2) comprises transceiver (21) and reverberator (22), wherein:
Said transceiver (21) is installed in that the cylinder bar (31) of said telescopic oil cylinder (3) is gone up, said reverberator (22) is installed on the cylinder barrel (32) of said telescopic oil cylinder (3), perhaps,
Said transceiver (21) is installed in that the cylinder barrel (32) of said telescopic oil cylinder (3) is gone up, said reverberator (22) is installed on the cylinder bar (31) of said telescopic oil cylinder (3);
Said transceiver (21) sends light beam to said reverberator (22), and said light beam is back to said transceiver (21) after said reverberator (22) reflection.
3. brachium measurement mechanism according to claim 1 and 2; It is characterized in that; Said processor (1) also is used for, and what the elongation data that record according to the said contactless length measurement sensor (2) that receives generated said telescopic jib respectively saves arm when the front stretching status data.
4. brachium measurement mechanism according to claim 3; It is characterized in that; Also comprise display (4), be connected to said processor (1), the total length of the said telescopic jib that said display (4) is used to show that said processor (1) calculates and/or described when the front stretching state.
5. a telescopic jib comprises at least two joint arm and telescopic oil cylinders, it is characterized in that, comprises that also said brachium measurement mechanism is used to measure the length of telescopic jib like each described brachium measurement mechanism in the claim 1 to 4.
6. telescopic jib according to claim 5; It is characterized in that; Said telescopic jib comprises first segment arm (51), the second joint arm (52), the 3rd joint arm (53) and is arranged on the mechanical lock (50) that the said second joint arm (52) and the said the 3rd saves between the arm (53); Wherein, The cylinder barrel (32) of said telescopic oil cylinder (3) is fixed on the afterbody of said the 3rd joint arm (53); The cylinder bar (31) of said telescopic oil cylinder (3) is provided with cylinder pin (33); And the afterbody of said first segment arm (51) is provided with the first cylinder pin-and-hole (511), and the afterbody of the said second joint arm (52) is provided with the second cylinder pin-and-hole (521), and said cylinder pin (33) cooperates the afterbody or said second that said cylinder bar (31) is fixed on said first segment arm (51) to save the afterbody of arm (52) respectively with the said first cylinder pin-and-hole (511), the said second cylinder pin-and-hole (521); And,
Said telescopic jib also comprises:
First detector switch (61) is opened at fixing said first segment arm (51) said first detector switch of last time (61) of said cylinder bar (31);
Second detector switch (62) is opened at fixing said second joint arm (52) said second detector switch of last time (62) of said cylinder bar (31); And,
Said processor (1) also is used for; Record first elongation of said telescopic oil cylinder (3) when being in open mode at said first detector switch (61); Record second elongation of said telescopic oil cylinder (3) when being in open mode at said second detector switch (62), calculate the total length of said telescopic jib according to said initial length, said first elongation, said second elongation.
7. telescopic jib according to claim 6; It is characterized in that; Comprise at least four joint arms and the telescoping mechanism of being made up of rope (7) and fixed pulley (8), said telescoping mechanism is used for when said the 3rd joint arm (53) of said telescopic oil cylinder (3) driving moves with respect to the said second joint arm (52), driving said the 3rd joint arm (53) arm afterwards and stretches.
8. telescopic jib according to claim 7; It is characterized in that; Said processor (1) specifically is used for: with the elongation of said first elongation as the said second joint arm (52), calculate described in the said telescopic jib the 3rd joint arm (53) and with the total elongation of postbrachium joint according to the arm joint number of said second elongation and said telescopic jib.
9. jib length measurement method is used to measure the length of telescopic jib, and said telescopic jib comprises at least two joint jib and telescopic oil cylinders, it is characterized in that said jib length measurement method comprises:
Step 402 is measured the elongation at telescopic oil cylinder (1) described in the said telescopic jib telescopic process with contactless length measurement sensor (2);
Step 404, the elongation of the said telescopic oil cylinder (1) that records according to the initial length and the said contactless length measurement sensor (2) of said telescopic jib calculates the length of said telescopic jib.
10. jib length measurement method according to claim 9; Said telescopic jib comprises first segment arm (51), the second joint arm (52), the 3rd joint arm (53) and is arranged on the mechanical lock (50) that the said second joint arm (52) and the said the 3rd saves between the arm (53); Wherein, The cylinder barrel (32) of said telescopic oil cylinder (3) is fixed on the afterbody of said the 3rd joint arm (53); The cylinder bar (31) of said telescopic oil cylinder (3) is provided with cylinder pin (33); And the afterbody of said first segment arm (51) is provided with the first cylinder pin-and-hole (511); The afterbody of the said second joint arm (52) is provided with the second cylinder pin-and-hole (521), and said cylinder pin (33) cooperates the afterbody or said second that said cylinder bar (31) is fixed on said first segment arm (51) to save the afterbody of arm (52) respectively with the said first cylinder pin-and-hole (511), the said second cylinder pin-and-hole (521), it is characterized in that:
Said step 402 specifically comprises; Said cylinder bar (31) is fixed on said first segment arm (51) last time and measures first elongation of said telescopic oil cylinder (3), and said cylinder bar (31) is fixed on said second joint arm (52) last time and measures second elongation of said telescopic oil cylinder (3);
Said step 404 specifically comprises, according to said initial length L
1, the said first elongation L
2, the said second elongation L
3Calculate the total length L of said telescopic jib, L=L
1+ L
2+ 3L
3
Priority Applications (1)
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| CN103058077A (en) * | 2012-12-27 | 2013-04-24 | 三一重工股份有限公司 | A crane and a boom thereof |
| CN103145042A (en) * | 2013-03-12 | 2013-06-12 | 中联重科股份有限公司 | Method, device and system for detecting length of telescopic boom and telescopic boom equipment |
| CN103204435A (en) * | 2013-03-19 | 2013-07-17 | 北京京城重工机械有限责任公司 | Method for positioning telescopic cylinder of single-cylinder pin type telescopic arm |
| CN103466474A (en) * | 2013-08-26 | 2013-12-25 | 三一汽车起重机械有限公司 | Telescopic arm device and automobile crane |
| CN103754768A (en) * | 2014-01-20 | 2014-04-30 | 安徽柳工起重机有限公司 | Free expansion control system of crane truck boom |
| CN104555736A (en) * | 2014-12-26 | 2015-04-29 | 徐州重型机械有限公司 | Method and device for identifying working condition of five-knuckle arm crane with wire ropes |
| CN106256754A (en) * | 2015-06-16 | 2016-12-28 | 徐工集团工程机械股份有限公司 | The scaling method of the long line of telescopic arm cylinder and system and crane |
| CN110654995A (en) * | 2019-09-02 | 2020-01-07 | 中联重科股份有限公司 | Arm length correction, detection and working condition identification system and method and crane |
| CN110761184A (en) * | 2019-09-04 | 2020-02-07 | 湖南桥康智能科技有限公司 | Multistage track bridge intellectual detection system equips |
| CN114105011A (en) * | 2021-12-01 | 2022-03-01 | 安徽柳工起重机有限公司 | Arm code identification system and method and crane |
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| CN103058077B (en) * | 2012-12-27 | 2015-10-28 | 三一重工股份有限公司 | Hoisting crane and crane arm thereof |
| CN103058077A (en) * | 2012-12-27 | 2013-04-24 | 三一重工股份有限公司 | A crane and a boom thereof |
| CN103145042A (en) * | 2013-03-12 | 2013-06-12 | 中联重科股份有限公司 | Method, device and system for detecting length of telescopic boom and telescopic boom equipment |
| CN103204435A (en) * | 2013-03-19 | 2013-07-17 | 北京京城重工机械有限责任公司 | Method for positioning telescopic cylinder of single-cylinder pin type telescopic arm |
| CN103204435B (en) * | 2013-03-19 | 2016-03-02 | 北京京城重工机械有限责任公司 | A kind of telescopic cylinder of single-cylinder pin type telescopic localization method |
| CN103466474A (en) * | 2013-08-26 | 2013-12-25 | 三一汽车起重机械有限公司 | Telescopic arm device and automobile crane |
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| CN103754768B (en) * | 2014-01-20 | 2016-03-02 | 安徽柳工起重机有限公司 | Free expansion control system of crane truck boom |
| CN103754768A (en) * | 2014-01-20 | 2014-04-30 | 安徽柳工起重机有限公司 | Free expansion control system of crane truck boom |
| CN104555736A (en) * | 2014-12-26 | 2015-04-29 | 徐州重型机械有限公司 | Method and device for identifying working condition of five-knuckle arm crane with wire ropes |
| CN106256754A (en) * | 2015-06-16 | 2016-12-28 | 徐工集团工程机械股份有限公司 | The scaling method of the long line of telescopic arm cylinder and system and crane |
| CN106256754B (en) * | 2015-06-16 | 2018-03-13 | 徐工集团工程机械股份有限公司 | The scaling method and system and crane of the long line of telescopic arm cylinder |
| CN110654995A (en) * | 2019-09-02 | 2020-01-07 | 中联重科股份有限公司 | Arm length correction, detection and working condition identification system and method and crane |
| CN110761184A (en) * | 2019-09-04 | 2020-02-07 | 湖南桥康智能科技有限公司 | Multistage track bridge intellectual detection system equips |
| CN114105011A (en) * | 2021-12-01 | 2022-03-01 | 安徽柳工起重机有限公司 | Arm code identification system and method and crane |
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