CN203529747U - Arm position detection device of single cylinder bolt-type telescopic boom - Google Patents
Arm position detection device of single cylinder bolt-type telescopic boom Download PDFInfo
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- CN203529747U CN203529747U CN201320577759.7U CN201320577759U CN203529747U CN 203529747 U CN203529747 U CN 203529747U CN 201320577759 U CN201320577759 U CN 201320577759U CN 203529747 U CN203529747 U CN 203529747U
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Abstract
The utility model relates to an arm position detection device of a single cylinder bolt-type telescopic boom. The arm position detection device comprises a plurality of proximity switches which are arranged on a telescopic cylinder, wherein the quantity of the proximity switches is the same as that of single-section telescopic booms in the single cylinder bolt-type telescopic boom; a plurality of final-section boom position detection objects are arranged on the final-section boom in the single cylinder bolt-type telescopic boom; the quantity of the final-section boom position detection objects is the same as that of the single section telescopic booms; the position where each final-section boom position detection object is located corresponds to the position of each proximity switch on the telescopic cylinder one by one; the other single-section telescopic booms except for the final-section boom in the single cylinder bolt-type telescopic boom are respectively provided with a boom position detection object; the boom position detection object on each single-section telescopic boom corresponds to one proximity switch on the telescopic cylinder. By adopting the boom position detection device of the single cylinder bolt-type telescopic boom, the probability of a fault due to the fact that a single proximity switch loses efficacy is greatly reduced, and the reliability of the final-section boom position detection is improved.
Description
Technical field
The utility model relates to engineering machinery field, relates in particular to a kind of arm level detecting apparatus of the single-cylinder bolt type telescopic boom for hoisting crane.
Background technology
Due to the single-cylinder bolt type telescopic boom lift heavy performance of lift crane principal arm significantly, thereby be widely used in middle large-tonnage crane products.Single-cylinder bolt type telescopic boom comprises a basic arm and some single-unit telescopic booms, all can the fixed or release by arm lock between adjacent single-unit telescopic boom and basic arm and first single-unit telescopic boom.Rod end and the basic arm of telescopic oil cylinder are fixed, the cylinder barrel of telescopic oil cylinder can slide in the inner chute arranging of each single-unit telescopic boom, first cylinder barrel can lock with minor details arm (the single-unit telescopic boom of end), simultaneously by minor details arm and the release of penultimate single-unit telescopic boom, now cylinder barrel can be taken minor details arm out of, when minor details arm reaches behind desired location, itself and penultimate single-unit telescopic boom are relocked, regain cylinder barrel, and by cylinder barrel and the locking of penultimate single-unit telescopic boom, then by penultimate single-unit telescopic boom and the release of antepenult single-unit telescopic boom, cylinder barrel is taken penultimate single-unit telescopic boom out of, by that analogy, just each single-unit telescopic boom can be stretched out successively.
Arm level detecting apparatus of the prior art comprises one group of approach switch of the left and right sides, end that is arranged on cylinder barrel, and according to the quantity of single-unit telescopic boom, every group of approach switch generally comprises 2-3 approach switch.Except basic arm, in each single-unit telescopic boom, be provided with arm position and detect thing, it is different that the setting position of thing in each single-unit telescopic boom detected in arm position, corresponding one by one with the setting position of each approach switch, when cylinder barrel is flexible, approach switch detects corresponding arm position and detects thing, now can according to the position when forearm, control by control system.In operating process, due to factors such as approach switch inefficacy, the stressed rear distortion of each single-unit telescopic boom, cause the position that minor details arm cannot be detected, the uncontrollable telescopic oil cylinder of control system stops stretching, and can cause and break the fault that arm head or oil cylinder slide down.
As shown in Figure 1, principle schematic for arm level detecting apparatus of the prior art, comprise a basic arm and four single-unit telescopic booms, an approach switch on the corresponding cylinder barrel of thing is detected in the arm position arranging on each single-unit telescopic boom, and four approach switchs are divided into two groups of both sides that are arranged on cylinder barrel.2 joint arm positions are set on first single-unit telescopic boom and detect thing, corresponding No. 1 approach switch; 3 joint arm positions are set on second single-unit telescopic boom and detect thing, corresponding No. 2 approach switchs; 4 joint arm positions are set on the 3rd single-unit telescopic boom and detect thing, corresponding No. 3 approach switchs; 5 joint arm positions are set on the 4th single-unit telescopic boom (minor details arm) and detect thing, corresponding No. 4 approach switchs.Because the 4th single-unit telescopic boom namely adopted an approach switch (No. 4 approach switchs) to coordinate an arm position to detect the mode of thing (thing is detected in 5 joint arm positions) on minor details arm equally, therefore, when No. 4 approach switchs effective, when 1-3 approach switch is invalid, the arm position that minor details arms detected is described.If lost efficacy because the reasons such as sensor fault cause No. 4 approach switchs, minor details arm cannot normally be detected so.Once the detector switch of minor details arm detect to lose efficacy, control system just cannot be identified minor details arm again, may cause oil cylinder hyperextension and break the faults such as arm head, oil cylinder slide down.
Utility model content
The purpose of this utility model is the arm level detecting apparatus that proposes a kind of single-cylinder bolt type telescopic boom, and the probability losing efficacy is detected in the upper minor details arm arm position that reduces largely, and cost is low.
For achieving the above object, the utility model provides a kind of arm level detecting apparatus of single-cylinder bolt type telescopic boom, it comprises some approach switchs that are arranged on telescopic oil cylinder, and the quantity of described approach switch is identical with the quantity of single-unit telescopic boom in described single-cylinder bolt type telescopic boom; On minor details arm in described single-cylinder bolt type telescopic boom, be provided with some minor details arms position and detect thing, the quantity that thing is detected in described minor details arm position is identical with the quantity of described single-unit telescopic boom, and described in each minor details arm position detection thing setting position with on described telescopic oil cylinder described in each setting position of approach switch corresponding one by one; In described single-cylinder bolt type telescopic boom except described minor details arm other each described in be provided with an arm position on single-unit telescopic boom and detect thing, and described in each, a described approach switch on the corresponding described telescopic oil cylinder of thing is detected in the described arm position on single-unit telescopic boom.Technique scheme adopts a plurality of approach switchs to detect a plurality of arms position to minor details arm simultaneously and detects thing, when two or more approach switchs are effective arbitrarily, think and minor details arm detected, therefore, can reduce largely because single approach switch loses efficacy and produce the probability of fault, promote the reliability that minor details arm position is detected.
Further, the described approach switch arranging on described telescopic oil cylinder is divided into two groups, approach switch corresponding both sides that are arranged on described telescopic oil cylinder respectively described in two groups.
Further, described single-unit telescopic boom has four, corresponding, four described approach switchs are set on described telescopic oil cylinder; On described minor details arm, be provided with four described minor details arm positions and detect thing, a described arm position is set on other three described single-unit telescopic booms except described minor details arm respectively and detects thing.
Further, four described approach switchs are divided into two groups, and described in every group, approach switch comprises two described approach switchs, approach switch corresponding both sides that are arranged on described telescopic oil cylinder respectively described in two groups.
Further, described single-unit telescopic boom has six, corresponding, six described approach switchs are set on described telescopic oil cylinder; On described minor details arm, be provided with six described minor details arm positions and detect thing, a described arm position is set on other five described single-unit telescopic booms except described minor details arm respectively and detects thing.
Further, six described approach switchs are divided into two groups, and described in every group, approach switch comprises three described approach switchs, approach switch corresponding both sides that are arranged on described telescopic oil cylinder respectively described in two groups.
Based on technique scheme, the utility model, with respect to arm level detecting apparatus of the prior art, does not need to increase approach switch, only need on minor details arm, increase several arms position and detect thing, with low cost; And the utility model adopts the principle of assembly coding to reduce the risk that single approach switch lost efficacy, promoted the reliability that minor details arm arm position is detected.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the principle schematic of arm level detecting apparatus in prior art;
The principle schematic of the arm level detecting apparatus that Fig. 2 provides for the utility model.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Single-cylinder bolt type telescopic boom of the prior art comprises a basic arm and some single-unit telescopic booms, all can the fixed or release by arm lock between adjacent single-unit telescopic boom and basic arm and first single-unit telescopic boom.Rod end and the basic arm of telescopic oil cylinder are fixed, and the cylinder barrel of telescopic oil cylinder can slide in the inner chute arranging of each single-unit telescopic boom.Wherein, from basic arm single-unit telescopic boom farthest, i.e. the single-unit telescopic boom of extreme end, hereinafter all referred to as minor details arm.
The arm level detecting apparatus of the single-cylinder bolt type telescopic boom that the utility model provides comprises some approach switchs that are arranged on the cylinder barrel end of telescopic oil cylinder, and the quantity of approach switch is identical with the quantity of single-unit telescopic boom in single-cylinder bolt type telescopic boom.On minor details arm in single-cylinder bolt type telescopic boom, be provided with some minor details arms position and detect thing, the quantity of minor details arm position detection thing is identical with the quantity of the single-unit telescopic boom in single-cylinder bolt type telescopic boom, and setting position of thing is detected in each minor details arm position on minor details arm and the setting position of each approach switch of cylinder barrel end is corresponding one by one.On other each single-unit telescopic booms except minor details arm in single-cylinder bolt type telescopic boom, be provided with an arm position and detect thing, and an approach switch of the corresponding cylinder barrel of thing end is detected in the arm position on each single-unit telescopic boom.
In above-described embodiment, the approach switch that cylinder barrel end arranges can be divided into two groups, and two groups of approach switchs are the corresponding both sides that are arranged on cylinder barrel respectively.
In above-described embodiment, a plurality of minor details arms position is set on minor details arm simultaneously and detects thing, when the approach switch of two or more arms position detection is arbitrarily effective, just can thinks and minor details arm position detected, can significantly reduce like this minor details arm position and detect the probability losing efficacy.The succession of utilizing in addition single-cylinder bolt type telescopic boom arm position to detect, can prevent because a plurality of approach switchs detect the asynchronous erroneous judgement causing.By adopting the mode of combinations thereof coding and judging identifying processing by accident, can significantly reduce minor details arm position and detect the probability losing efficacy, and then can significantly improve the performance of the anti-hyperextension of control system.
As shown in Figure 2, the specific embodiment providing for the utility model, single-cylinder bolt type telescopic boom shown in figure comprises a basic arm and four single-unit telescopic booms, the end of cylinder barrel is provided with four approach switchs, is respectively No. 1 approach switch, No. 2 approach switchs, No. 3 approach switchs and No. 4 approach switchs.On minor details arm, be provided with four minor details arm positions and detect thing, on other three single-unit telescopic booms, be provided with an arm position and detect thing.
It is that thing is detected in 2 joint arm positions that thing is detected in the arm position arranging on first single-unit telescopic boom, and the setting position that thing is detected in 2 joint arm positions is corresponding to No. 1 approach switch; It is that thing is detected in 3 joint arm positions that thing is detected in the arm position arranging on second single-unit telescopic boom, and the setting position that thing is detected in 3 joint arm positions is corresponding to No. 2 approach switchs; It is that thing is detected in 4 joint arm positions that thing is detected in the arm position arranging on the 3rd single-unit telescopic boom, and the setting position that thing is detected in 4 joint arm positions is corresponding to No. 3 approach switchs; Four minor details arm positions that arrange on minor details arm are detected things and are 5 joint arm positions and detect things, four 5 joint arm positions detect the setting position of thing and the setting position of four approach switchs corresponding one by one.
In above-described embodiment, four approach switchs can be divided into two groups, and every group of approach switch comprises two approach switchs, and two groups of approach switchs are the corresponding both sides that are arranged on the end of cylinder barrel respectively.
In the testing process of arm position, any two or more approach switch is effective, think and minor details arm detected, the test set of minor details arm has amounted to 11 kinds (if there are six approach switchs like this, the combination that minor details arm position is detected has 57 kinds), unless had more than 3 or 3 approach switchs to lose efficacy, otherwise there will not be the situation that can't detect minor details arm so simultaneously simultaneously.
The utility model effectively reduces minor details arm position and detects the probability losing efficacy.If the probability that each approach switch of traditional mode lost efficacy is x(0<x<1), the probability that detection of minor details arm position was lost efficacy is x.The arm level detecting apparatus that adopts the utility model to provide, in the situation that using 4 approach switchs, minor details arm position failure probability is x
3+ x
4if (adopt 6 approach switchs, the probability of inefficacy is further reduced to x
5+ x
6), the effect that promotes minor details arm position detecting reliability is remarkable.
Because assembly coding mode requires the synchronism of detection signal, but due to the error of manufacturing, assembling, at end position, likely there is the nonsynchronous situation of detection signal, cause the erroneous judgement of control system.The utility model utilizes the succession of detection arm position, avoids the erroneous judgement of signal.For example: when 4 joint arm positions being detected, detect after the signal of thing, control system is recorded position signal; When telescopic oil cylinder continues to protract, because detection signal is asynchronous, may think that 2 joint arm positions having been detected detects the arm position that certain the single-unit telescopic boom in thing is detected in joint arm position, thing～4 by mistake, now judgement had previously detected 4 joint arm positions and had detected thing, so can not be that the position that thing is detected in joint arm position, thing～4 is detected in 2 joint arm positions, can avoid thus erroneous judgement.
In another specific embodiment that the utility model provides, single-cylinder bolt type telescopic boom also can comprise a basic arm and six single-unit telescopic booms, the end of corresponding cylinder barrel is provided with six approach switchs, on minor details arm, be provided with six minor details arm positions and detect thing, six minor details arm positions detect the setting position of thing and the setting position of six approach switchs corresponding one by one, on other five single-unit telescopic booms except minor details arm, be provided with an arm position and detect thing, the setting position of the corresponding approach switch of setting position of thing is detected in each arm position.
In above-described embodiment, six approach switchs can be divided into two groups, and every group of approach switch comprises three approach switchs, and two groups of approach switchs are the corresponding both sides that are arranged on the end of cylinder barrel respectively.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (6)
1. an arm level detecting apparatus for single-cylinder bolt type telescopic boom, is characterized in that: it comprises some approach switchs that are arranged on telescopic oil cylinder, and the quantity of described approach switch is identical with the quantity of single-unit telescopic boom in described single-cylinder bolt type telescopic boom; On minor details arm in described single-cylinder bolt type telescopic boom, be provided with some minor details arms position and detect thing, the quantity that thing is detected in described minor details arm position is identical with the quantity of described single-unit telescopic boom, and described in each minor details arm position detection thing setting position with on described telescopic oil cylinder described in each setting position of approach switch corresponding one by one; In described single-cylinder bolt type telescopic boom except described minor details arm other each described in be provided with an arm position on single-unit telescopic boom and detect thing, and described in each, a described approach switch on the corresponding described telescopic oil cylinder of thing is detected in the described arm position on single-unit telescopic boom.
2. the arm level detecting apparatus of single-cylinder bolt type telescopic boom as claimed in claim 1, is characterized in that: the described approach switch arranging on described telescopic oil cylinder is divided into two groups, approach switch corresponding both sides that are arranged on described telescopic oil cylinder respectively described in two groups.
3. the arm level detecting apparatus of single-cylinder bolt type telescopic boom as claimed in claim 1, is characterized in that: described single-unit telescopic boom has four, corresponding, four described approach switchs are set on described telescopic oil cylinder; On described minor details arm, be provided with four described minor details arm positions and detect thing, a described arm position is set on other three described single-unit telescopic booms except described minor details arm respectively and detects thing.
4. the arm level detecting apparatus of single-cylinder bolt type telescopic boom as claimed in claim 3, it is characterized in that: four described approach switchs are divided into two groups, described in every group, approach switch comprises two described approach switchs, approach switch corresponding both sides that are arranged on described telescopic oil cylinder respectively described in two groups.
5. the arm level detecting apparatus of single-cylinder bolt type telescopic boom as claimed in claim 1, is characterized in that: described single-unit telescopic boom has six, corresponding, six described approach switchs are set on described telescopic oil cylinder; On described minor details arm, be provided with six described minor details arm positions and detect thing, a described arm position is set on other five described single-unit telescopic booms except described minor details arm respectively and detects thing.
6. the arm level detecting apparatus of single-cylinder bolt type telescopic boom as claimed in claim 5, it is characterized in that: six described approach switchs are divided into two groups, described in every group, approach switch comprises three described approach switchs, approach switch corresponding both sides that are arranged on described telescopic oil cylinder respectively described in two groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577759.7U CN203529747U (en) | 2013-09-18 | 2013-09-18 | Arm position detection device of single cylinder bolt-type telescopic boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577759.7U CN203529747U (en) | 2013-09-18 | 2013-09-18 | Arm position detection device of single cylinder bolt-type telescopic boom |
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| CN203529747U true CN203529747U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320577759.7U Expired - Fee Related CN203529747U (en) | 2013-09-18 | 2013-09-18 | Arm position detection device of single cylinder bolt-type telescopic boom |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN106276638A (en) * | 2016-08-19 | 2017-01-04 | 三汽车起重机械有限公司 | Method, device, system and the crane that flexible impact shake controls |
| CN110319872A (en) * | 2019-05-14 | 2019-10-11 | 武汉船用机械有限责任公司 | Bolt condition checkout gear |
-
2013
- 2013-09-18 CN CN201320577759.7U patent/CN203529747U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106276638A (en) * | 2016-08-19 | 2017-01-04 | 三汽车起重机械有限公司 | Method, device, system and the crane that flexible impact shake controls |
| CN106276638B (en) * | 2016-08-19 | 2018-06-08 | 三一汽车起重机械有限公司 | Method, apparatus, system and the crane of flexible impact shake control |
| CN110319872A (en) * | 2019-05-14 | 2019-10-11 | 武汉船用机械有限责任公司 | Bolt condition checkout gear |
| CN110319872B (en) * | 2019-05-14 | 2021-11-16 | 武汉船用机械有限责任公司 | Bolt state detection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20200918 |