CN103601085A - Telescopic arm device and engineering vehicle - Google Patents
Telescopic arm device and engineering vehicle Download PDFInfo
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- CN103601085A CN103601085A CN201310616149.8A CN201310616149A CN103601085A CN 103601085 A CN103601085 A CN 103601085A CN 201310616149 A CN201310616149 A CN 201310616149A CN 103601085 A CN103601085 A CN 103601085A
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Abstract
The invention provides a telescopic arm device and an engineering vehicle. The telescopic arm device provided by the invention comprises a main arm module and an auxiliary arm module, wherein the main arm module comprises a first main sectional arm and at least one main sectional arm sequentially sleeved in the first main sectional arm; the auxiliary arm module comprises a first auxiliary sectional arm and at least one auxiliary sectional arm sequentially sleeved in the first auxiliary sectional arm; the arm head of the innermost main sectional arm in the main arm module is connected with the arm tail of the first auxiliary sectional arm; when the telescopic arm device is in a completely contracted state, the first auxiliary sectional arm is positioned outside the first main sectional arm; the extension and contraction of each auxiliary sectional arm inside the first auxiliary sectional arm are driven by a hoisting rope row mechanism. The telescopic arm device provided by the invention has the advantages of small self weight and low production cost, and meanwhile the hoisting performance of the telescopic arm device can be further possibly improved.
Description
Technical field
The present invention relates to telescoping mechanism field, more specifically, relate to a kind of telescopic boom device and engineering truck.
Background technology
Telescopic boom is the core component of car hosit, is also car hosit most important load-bearing structural member in hanging year operation, and the weight of telescopic boom, intensity, rigidity will directly affect the in-use performance of car hosit.Telescopic boom mainly contains oil cylinder rope row's formula and two kinds of forms of single cylinder bolt-type, consider cost and relevant manufacturing technology, current 100 tons and following product adopt five joint arms that technology is comparatively ripe and the telescopic boom of following synchronization telescope mostly, and the inner oil cylinder rope row formula telescoping mechanism that adopts of telescopic boom.But along with market competition is day by day fierce, the lift heavy performance of telescopic boom highly also more and more receives client's concern with hanging to carry, and telescopic boom technology more than five joint arms are also needed development badly.
Please refer to Fig. 1, Fig. 1 shows in prior art six joint arm telescopic boom devices for a kind of typical car hosit.
This six joints arm telescopic boom device comprises first segment arm (also referred to as basic arm) 1 ' and is set in successively second section arm 2 ', the 3rd joint arm 3 ', the 4th joint arm 4 ', the 5th joint arm 5 ' and the 6th joint arm 6 ' wherein.In arm cylinder inside, be provided with the first telescoping cylinder 71 ' and the second telescoping cylinder 72 '.The cylinder barrel of the first telescoping cylinder 71 ' is connected with second section arm 2 ', and piston rod is connected with first segment arm 1 '.The cylinder barrel of the second telescoping cylinder 72 ' is connected with the 4th joint arm 4 ', and piston rod is connected with the 3rd joint arm 3 '.The first semi-girder wheel 81 ' is installed in the cylinder barrel end of the first telescoping cylinder 71 '; The middle part winding of the first semi-girder drag-line 91 ' is upper at the first semi-girder wheel 81 ', and its two ends are connected with the root of first segment arm 1 ', the root of the 3rd joint arm 3 ' respectively.The second semi-girder wheel 82 ' is installed in the cylinder barrel end of the second telescoping cylinder 72 '; The middle part winding of the second semi-girder drag-line 92 ' is upper at the second semi-girder wheel 82 ', and its two ends are connected with the root of the 3rd joint arm 3 ', the root of the 5th joint arm 5 ' respectively.The middle part winding that the 3rd semi-girder wheel the 83 ', three semi-girder drag-line 93 ' is installed in the ending of the 5th joint arm is upper at the 3rd semi-girder wheel 83 ', and its two ends are connected with the root of the 4th joint arm 4 ', the root of the 6th joint arm 6 ' respectively.Root at second section arm 2 ' is provided with the first contracting arm wheel 84 '; The middle part winding of the first contracting arm drag-line 94 ' is upper at the first contracting arm wheel 84 ', and its two ends are connected with the ending of first segment arm 1 ', the root of the 3rd joint arm 3 ' respectively.Root at the 4th joint arm 4 ' is provided with the second contracting arm wheel 85 '; The middle part winding of the second contracting arm drag-line 95 ' is upper at the second contracting arm wheel 85 ', and its two ends are connected with the ending of the 3rd joint arm 3 ', the root of the 5th joint arm 5 ' respectively.Root at the 5th joint arm 5 ' is provided with the 3rd contracting arm wheel 86 '; The middle part winding of the 3rd contracting arm drag-line 96 ' is upper at the 3rd contracting arm wheel 86 ', and its two ends are connected with the 6th joint ending of arm 6 ', the cylinder barrel end of the second telescoping cylinder 72 ' respectively.
When rodless cavity fuel feeding to the first telescoping cylinder 71 ' of this six joints arm telescopic boom, the cylinder barrel of the first telescoping cylinder drives second section arm 2 ' to stretch out, under the pulling force effect of the first semi-girder drag-line 91 ', the 3rd joint arm 3 ' stretches out, and realizes synchronously stretching out of second section arm 2 ' and the 3rd joint arm 3 '; The synchronous rodless cavity fuel feeding to the second telescoping cylinder 72 ', the cylinder barrel of the second telescoping cylinder 72 ' drives the 4th joint arm 4 ' to stretch out, under the pulling force effect of the second semi-girder drag-line 92 ', the 5th joint arm 5 ' stretches out, meanwhile, under the pulling force effect of the 3rd semi-girder drag-line 93 ', the 6th joint arm 6 ' stretches out, and realizes synchronously stretching out of the 4th joint arm 4 ', the 5th joint arm 5 ' and the 6th joint arm 6 '.In addition, by the synchronous fuel feeding to the first telescoping cylinder 71 ' and the second telescoping cylinder 72 ', the 4th joint arm 4 ' and the 3rd joint arm 3 ' can synchronously stretch out, thereby have realized first segment arm 1 ' synchronously stretching out to the 6th joint arm 6 '.
When rod chamber fuel feeding to the first telescoping cylinder 71 ' of this six joints arm telescopic boom, the cylinder barrel of the first telescoping cylinder 71 ' drives second section arm 2 ' to retract, under the pulling force effect of the first contracting arm drag-line 94 ', the 3rd joint arm 3 ' is retracted, and realizes the synchronous retraction of second section arm 2 ' and the 3rd joint arm 3 '; The synchronous rod chamber fuel feeding to the second telescoping cylinder 72 ', the cylinder barrel of the second telescoping cylinder 72 ' drives the 4th joint arm 4 ' to retract, under the pulling force effect of the second contracting arm drag-line 95 ', the 5th joint arm 5 ' is retracted, meanwhile, under the pulling force effect of the 3rd contracting arm drag-line 96 ', the 6th joint arm 6 ' is retracted, and realizes the synchronous retraction of the 4th joint arm 4 ', the 5th joint arm 5 ' and the 6th joint arm 6 '.In addition, by the synchronous fuel feeding to the first telescoping cylinder 71 ' and the second telescoping cylinder 72 ', the 4th joint arm 4 ' and the 3rd joint arm 3 ' can synchronously be retracted, thereby realized the synchronous retraction of first segment arm 1 ' to the 6th joint arm 6 ', also during this six joints arm telescopic boom full reduced state, the second section arm 2 ' of inner side to the 6th joint arm 6 ' is all retracted in outermost first segment arm 1 '.
Six above-mentioned joint arm retractor devices, the arm cylindrical shell that respectively saves arm that occupy outside is long-pending very large, causes telescopic boom overall weight large, when having increased telescopic boom deadweight, has also increased productive costs, also can affect its lifting performance.
Summary of the invention
Object of the present invention is to provide a kind of telescopic boom device, large to solve six joint arm retractor device overall weight of prior art, affects the problem of self lifting performance when causing productive costs to increase.Another object of the present invention is to provide a kind of engineering truck of applying above-mentioned telescopic boom device.
Telescopic boom device provided by the invention, comprising: principal arm module, comprises the first main joint arm and be set in successively the main joint arm of at least one joint in the first main joint arm; Auxiliary module, comprises the first chromaffin body arm and is set in successively at least one joint chromaffin body arm in the first chromaffin body arm; In principal arm module, the arm head of the main joint arm in inner side is connected with the arm tail of the first chromaffin body arm; Telescopic boom device is when full reduced state, and the first chromaffin body arm is positioned at the outside of the first main joint arm; The flexible of chromaffin body arm that respectively save that is positioned at the first chromaffin body arm inner side driven by lift rope row mechanism.
Further, in principal arm module, the inner side arm head of main joint arm and the arm tail of the first chromaffin body arm removably connect.
Further, the flexible of main joint arm that respectively save that is positioned at the first main joint arm inner side driven by oil cylinder Sheng Pai mechanism.
Further, principal arm module comprises: the first main joint arm, and be set in successively the second main joint arm and the 3rd main joint arm in the first main joint arm; Auxiliary module comprises: the first chromaffin body arm, and be set in successively the second chromaffin body arm and the 3rd chromaffin body arm in the first chromaffin body arm.
Further, oil cylinder Sheng Pai mechanism comprises: telescoping cylinder, and its piston rod is connected with the first main joint arm, and cylinder barrel is connected with the second main joint arm; For semi-girder wheel and the semi-girder drag-line that the 3rd main joint arm is stretched out; For contracting arm wheel and the contracting arm drag-line that the 3rd main joint arm is retracted; Lift rope row mechanism comprises: the first telescopic boom is taken turns, and is arranged on the arm head of the first chromaffin body arm; The second telescopic boom is taken turns, and is arranged on the arm tail of the second chromaffin body arm; The 3rd telescopic boom is taken turns, and is arranged on the arm head of the second chromaffin body arm; Telescopic boom drag-line, one end is connected with the lift rope being wrapped on winding drum, and the other end is connected with the 3rd chromaffin body arm, and the first telescopic boom wheel, the second telescopic boom wheel and the 3rd telescopic boom wheel are crossed in middle part successively winding; The arm head place of the 3rd main joint arm is provided with the first connecting portion, and the arm tail place of the first chromaffin body arm is provided with the second connecting portion, and the second connecting portion is connected with the first connecting portion.
Further, the first connecting portion is to be arranged on first of the 3rd main joint arm arm head to connect otic placode, and the second connecting portion is to be arranged on second of the first chromaffin body arm arm tail to connect otic placode, and the first connection otic placode and second is connected otic placode and connects by bearing pin.
Further, lift rope and telescopic boom drag-line are integral type structure; The other end of telescopic boom drag-line is connected with the arm tail of the 3rd chromaffin body arm.
Further, semi-girder wheel is arranged on the cylinder barrel end of telescoping cylinder; The two ends of semi-girder drag-line are connected with the arm tail of the 3rd main joint arm with the arm tail of the first main joint arm respectively, and middle part winding is on semi-girder wheel; Contracting arm wheel is arranged on the arm tail of the second main joint arm; The two ends of contracting arm drag-line are connected with the arm tail of the 3rd main joint arm with the arm head of the first main joint arm respectively, and middle part winding is on contracting arm wheel.
Further, each arm wheel is pulley, and each drag-line is steel rope; For the oil pipe outer ring sleeve to telescoping cylinder fuel feeding, holder chain is housed.
Engineering truck provided by the invention, comprises turntable and above-mentioned telescopic boom device, and arm tail and the turntable of the first main joint arm of telescopic boom device are hinged.
Telescopic boom device provided by the invention, changed the mode that in prior art, the more piece joint arm of telescopic boom device is socketed successively, but being saved to arm, more piece is divided into two groups, form respectively principal arm module and auxiliary module, the arm head that arm is saved in the inner side of the arm tail of the outermost joint arm of auxiliary module and principal arm module is connected, and when this telescopic boom device is during in full reduced state, the first chromaffin body arm is positioned at the outside of the first main joint arm, also be that under full reduced state, auxiliary module is not retracted in principal arm module, like this, respectively the saving arm and can adopt the little arm cylinder in cross section of principal arm module, the volume of principal arm module is reduced, the weight that reduces to reduce principal arm module of principal arm module volume, and then the overall weight of reduction telescopic boom.Compare with prior art six joint arm telescopic boom devices, telescopic boom device provided by the invention has from heavy and light, the advantage that productive costs is low, simultaneously for the further raising of the lifting performance of telescopic boom device provides may.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the structure principle chart of six joint arm retractor devices of prior art;
Fig. 2 has schematically shown the structure principle chart of the telescopic boom device that the embodiment of the present invention provides.
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Referring to Fig. 2, show the structure principle chart of the telescopic boom device that the embodiment of the present invention provides, this telescopic boom device take that to be applied to six joint arm telescopic boom devices be example, and in Fig. 2, telescopic boom device is in full reduced state.As shown in the figure, this telescopic boom device comprises principal arm module and auxiliary module.
Wherein, principal arm module comprises: the first main joint arm 1, is set in the second main joint arm 2 in the first main joint arm 1 and the main joint arm 3 of the 3rd main joint arm 3, the three successively for the main joint arm in inner side, the arm tail of the first main joint arm 1 is for being connected with the turntable on car body, and car body can be for example the chassis of car hosit.It should be noted that, because the second main joint arm and the 3rd main joint arm are all set in the first main joint arm 1, so the first main joint arm 1 is the main joint arm of outermost, the second main joint arm and the 3rd main joint arm are the main joint arm in inner side, and the 3rd main joint arm is the main joint arm in inner side.
Auxiliary module comprises: the first chromaffin body arm 4, is set in the second chromaffin body arm 5 and the 3rd chromaffin body arm 6 in the first chromaffin body arm 4 successively.The 3rd chromaffin body arm 6 is inner side chromaffin body arm, the arm head that the arm head of the 3rd chromaffin body arm 6 is whole telescopic boom device.The flexible of chromaffin body arm (comprising the second chromaffin body arm 5 and the 3rd chromaffin body arm 6) that respectively save that is positioned at the first chromaffin body arm inner side driven by lift rope row mechanism.
The arm head of the 3rd main joint arm 3 is connected with the arm tail of the first chromaffin body arm 4, as can be seen from Figure, telescopic boom device is when full reduced state, the first chromaffin body arm 4 is positioned at the outside of the first main joint arm 3, also this telescopic boom device under full reduced state, the second main joint arm 2 and the 3rd main joint arm 3 have all been retracted in the first main joint arm 1, and the second chromaffin body arm 5 and the 3rd chromaffin body arm 6 have all been retracted in the first chromaffin body arm 4, but the arm that respectively saves of auxiliary module does not need to be retracted in the first main joint arm 1 of principal arm module.
The telescopic boom device that the embodiment of the present invention provides, changed the mode that in prior art, the more piece joint arm of telescopic boom device is socketed successively (under full reduced state, all inner sides joint arm is all retracted in outermost joint arm), but being saved to arm, more piece is divided into two groups, form respectively principal arm module and auxiliary module, and the joint arm of auxiliary module is not retracted in the joint arm of principal arm module under full reduced state, like this, respectively the saving arm and can adopt the little arm cylinder in cross section of principal arm module, the volume of principal arm module is reduced, the weight that reduces to reduce principal arm module of principal arm module volume, and then the overall weight of reduction telescopic boom.Always save with prior art the six joint arm telescopic boom devices that arm number is identical and compare, the telescopic boom device that the embodiment of the present invention provides has from heavy and light, the advantage that productive costs is low, for the further raising of the lifting performance of telescopic boom device provides may.
It should be noted that, although telescopic boom device be take six joint arm telescopic boom devices and is described as example in the present embodiment, it should be appreciated by those skilled in the art, the field of application of this telescopic boom device is not limited to six joint arm telescopic boom devices, for example can also be applied on four joint arms (principal arm module and auxiliary module can comprise respectively two joint joint arms), five joint arm telescopic boom devices (principal arm module and auxiliary module can comprise respectively three joint joint arms, two joint joint arms), all can reach and alleviate telescopic boom overall weight, improve the effect of telescopic boom load-carrying ability.
Come again referring to Fig. 2, in the present embodiment, also show in six joint arm telescopic boom devices, driving is positioned at the main joint arm (comprising the second main joint arm 2 and the 3rd main joint arm 3) that respectively saves of the first main joint arm 1 inner side and realizes the preferred implementation of the oil cylinder Sheng Pai mechanism of Telescopic, and drives the chromaffin body arm that respectively saves that is positioned at the first chromaffin body arm 4 inner sides to realize (comprising the second chromaffin body arm 5 and the second chromaffin body arm 6) preferred implementation that the lift rope of Telescopic is arranged mechanism.As shown in the figure, oil cylinder Sheng Pai mechanism comprises telescoping cylinder 12, semi-girder wheel 71 and semi-girder drag-line 81, contracting arm wheel 72 and contracting arm drag-line 82; Lift rope row mechanism comprises the first telescopic boom wheel 73, the second telescopic booms wheel 74, the three telescopic booms wheels 75, telescopic boom drag-line 83, winding drum 100 and be wrapped in the lift rope 101 on winding drum 100.
The piston rod of telescoping cylinder 12 is connected with the first main joint arm 1, and cylinder barrel is connected with the second main joint arm 2.Preferably, the arm tail of the rod end of telescoping cylinder 12 and the first main joint arm 1 is hinged by bearing pin, and the cylinder barrel of telescoping cylinder 12 is connected with the arm tail of the second main joint arm 2.
Semi-girder wheel 71 and semi-girder drag-line 81 match for the 3rd main joint arm 3 is stretched out.As can be seen from Figure, preferably, semi-girder wheel 71 is arranged on the cylinder barrel end of telescoping cylinder 12, those skilled in the art will readily understand, this cylinder barrel end is that cylinder barrel is away from the end of the first main joint arm 1 arm tail.Preferably, one end of semi-girder drag-line 81 is connected with the arm tail of the first main joint arm 1, and the other end of semi-girder drag-line 81 is connected with the arm tail of the 3rd main joint arm 3, and the middle part winding of semi-girder drag-line 81 is on semi-girder wheel 71.
Contracting arm wheel 72 and contracting arm drag-line 82 match for the 3rd main joint arm 3 is retracted.As can be seen from Figure, preferably, contracting arm wheel 72 is arranged on the arm tail of the second main joint arm 2.Preferably, one end of contracting arm drag-line 82 is connected with the arm head of the first main joint arm 1, and the other end of contracting arm drag-line 82 is connected with the arm tail of the 3rd main joint arm 3, and the middle part winding of contracting arm drag-line 82 is on contracting arm wheel 72.
The arm tail place that the arm head place of the 3rd main joint arm 3 is provided with the first connecting portion 91, the first chromaffin body arms 4 is provided with the second connecting portion 92, the second connecting portions 92 and is connected principal arm module and auxiliary module are linked together with the first connecting portion 91.
The first telescopic boom wheel 73 is arranged on the arm head of the first chromaffin body arm 4, and the second telescopic boom wheel 74 is arranged on the arm tail of the second chromaffin body arm 5, and the 3rd telescopic boom wheel 75 is arranged on the arm head of the second chromaffin body arm 5.One end of telescopic boom drag-line 83 removably connects by joint 102 with the lift rope 101 being wrapped on winding drum 100, and winding drum 100 is for example driven by motor, and winding drum 100 is independently arranged on outside telescopic boom, does not increase the weight of telescopic boom; The other end of telescopic boom drag-line 83 is connected with the 3rd chromaffin body arm 6, and the middle part of telescopic boom drag-line 83 successively winding cross first telescopic boom wheel the 73, second telescopic boom wheel the 74 and the 3rd telescopic boom wheel 75.This telescopic boom drag-line 83 and the first telescopic boom wheel the 73, second telescopic boom wheel the 74, the 3rd telescopic boom wheel 75 match, for controlling the flexible of the second chromaffin body arm 5 and the 3rd chromaffin body arm 6.Preferably, the other end of telescopic boom drag-line 83 is connected with the arm tail of the 3rd chromaffin body arm 6, so that the other end of telescopic boom drag-line 83 is installed to location.
As can be seen from Figure, telescopic boom device is when full reduced state, the first chromaffin body arm 4 is positioned at the outside of the first main joint arm 3, also this telescopic boom device under full reduced state, the second main joint arm 2 and the 3rd main joint arm 3 have all been retracted in the first main joint arm 1, the second chromaffin body arm 5 and the 3rd chromaffin body arm 6 have all been retracted in the first chromaffin body arm 4, but respectively the saving in the first main joint arm 1 that arm can not be retracted to principal arm module of auxiliary module.
The telescopic boom device of the six joint arms that the embodiment of the present invention provides is in assembling process, can respectively principal arm module and oil cylinder Sheng Pai mechanism thereof be assembled, auxiliary module and each inner assembly pulley thereof are installed, again the joint arm of the two is fitted together by the first connecting portion 91 and the second connecting portion 92, then one end of telescopic boom drag-line 83 is connected by joint 102 with the lift rope 101 on winding drum 100, assembling process is convenient, the six joint arm telescopic boom devices with respect to prior art, because only adopting a telescoping cylinder and drag-line usage quantity also few, and telescopic boom drag-line 83 can link together by joint 102 easily with lift rope 101, assembly difficulty is also little, thereby manpower and materials have been saved, because having reduced the usage quantity of telescoping cylinder, further reduced the overall weight of telescopic boom in addition.
It should be noted that, although telescopic boom drag-line 83 and lift rope 101 are that two different ropes removably connect by joint 102 in the present embodiment, so that dismounting transportation, but in a kind of unshowned mode, telescopic boom drag-line 83 and lift rope 101 can also be the different pieces of same rope, also, lift rope 101 is integral type structure with telescopic boom drag-line 83.
It should be noted that, each arm wheel above relating to can, according to the occupation mode of field of engineering technology routine, be fixed on the pulley yoke of corresponding joint arm or telescoping cylinder as required.Correspondingly, the end of each drag-line can connect with the link span of corresponding joint arm arm head or self-equalizing frame or other structures of arm tail respectively.
Come again referring to Fig. 2, the six joint arm telescopic boom devices that the embodiment of the present invention provides to stretch out principle of work as described below:
1) when the rodless cavity oil-feed of telescoping cylinder 12, the cylinder barrel of telescoping cylinder 12 protracts, and drives the second main joint arm 2 to stretch out simultaneously.Meanwhile, under the effect of semi-girder wheel 71, the speed that semi-girder drag-line 81 drives the 3rd main joint arm 3 to stretch out speed to be twice in telescoping cylinder 12 is stretched out, thereby realizes synchronously stretching out of the second main joint arm 2, the 3rd main joint arm 3.
2), when the 3rd main joint arm 3 stretches out, the first chromaffin body arm 4 is overhanging with the 3rd main joint arm 3.Winding drum 100 actions, make telescopic boom drag-line 83 under the effect of first telescopic boom wheel the 73, second telescopic boom wheel the 74, the 3rd telescopic boom wheel 75, drive the second chromaffin body arm 5, the 3rd chromaffin body arm 6 synchronously to stretch out, thereby the combination that realizes principal arm module and auxiliary module is stretched out.
The retraction principle of work of the telescopic boom device that the embodiment of the present invention provides is as described below:
1) when the rod chamber oil-feed of telescoping cylinder 12, the cylinder barrel of telescoping cylinder 12 retraction.Drive the second main joint arm 2 retractions simultaneously.Meanwhile, under the effect of contracting arm wheel 72, contracting arm drag-line 82 drives the 3rd main joint arm 3 with respect to the second main joint arm 2 retractions, thereby realizes the synchronous retraction of the second main joint arm 2, the 3rd main joint arm 3.
2), in the 3rd main joint arm 3 retractions, the first chromaffin body arm 4 is with the 3rd main joint arm 3 retractions.Winding drum 100 actions, make telescopic boom drag-line 83 under the Action of Gravity Field of the effect of first telescopic boom wheel the 73, second telescopic boom wheel the 74, the 3rd telescopic boom wheel 75 and the second chromaffin body arm 5, the 3rd chromaffin body arm 6 self, drive the second chromaffin body arm 5, the 3rd chromaffin body arm 6 synchronously to bounce back, thereby realize the combination retraction of principal arm module and auxiliary module.
In addition, because the flexible of auxiliary module inner side joint arm (the second chromaffin body arm 5, the 3rd chromaffin body arm 6) realized by lift rope row mechanism controls, and be not subject to the flexible impact of principal arm module, when principal arm module is flexible, can needs to determine whether to control auxiliary module inner side joint arm and carry out synchronization telescope according to hanging to carry.
It should be noted that, although exemplified the principal arm module of six joint arm telescopic boom devices and oil cylinder Sheng Pai mechanism and lift rope row mechanism preferred arrangements structure that auxiliary module realizes Telescopic in the present embodiment, but in other embodiments, realize the flexible of principal arm module and auxiliary module and can also have numerous embodiments, stretching of each main joint arm in inner side such as principal arm module also can adopt lift rope to arrange the modes such as mechanism, concrete principle of work does not repeat them here, as long as it is flexible to realize the inner side chromaffin body arm of the main joint arm in the inner side of principal arm module and auxiliary module.
Preferably, the first connecting portion is 91 to be arranged on first of the 3rd main joint arm 3 arm heads and to connect otic placode, the second connecting portion 92 connects otic placode for being arranged on second of the first chromaffin body arm 4 arm tails, the first connection otic placode is connected otic placode with second and connects by bearing pin 93, the first connecting portion 91 and the second being connected to of connecting portion 92 are removably connected, like this, on the one hand when not needing too high hanging to carry height, auxiliary module can be disassembled, only use principal arm module hoisting; On the other hand, when transition is transported, auxiliary module can be disassembled to independent transportation, with principal arm module and the auxiliary module of avoiding linking together, cause the total length of vehicle not meet over-the-road transportation standard.Certainly, removably connecting of the first connecting portion 91 and the second connecting portion 92 can also adopt other modes, and specifically no longer this repeats one by one.
Preferably, each above-mentioned arm wheel (comprising semi-girder wheel 71, contracting arm wheel 72, first telescopic boom wheel the 73, second telescopic boom wheel the 74, the 3rd telescopic boom wheel 75) can be all pulley; Correspondingly, each above-mentioned drag-line (comprising semi-girder drag-line 81, contracting arm drag-line 82, telescopic boom drag-line 83) can be all steel rope.Pulley and steel rope have widespread use in engineering machinery field, and it is convenient to buy, and are convenient to upgrade and safeguard.
Certainly, above-mentioned each arm wheel is not limited to pulley, also can adopt other parts that can realize rotation, such as sprocket wheel etc.Correspondingly, each above-mentioned drag-line is also not limited to steel rope, for example, can be chain.
Preferably, for the oil pipe outer ring sleeve to telescoping cylinder 12 fuel feeding, holder chain is housed, this holder chain can be also elastomeric material for having the metallic material of some strength, for the protection of oil pipe, extends the service life of oil pipe.
In sum, the telescopic boom device tool that the embodiment of the present invention provides has the following advantages:
1) reduce the weight of telescopic boom, improved the lifting performance of telescopic boom;
2) compare with six joint arm telescopic boom devices of prior art, the embodiment of the present invention is by the rope row structure of reasonable Arrangement, telescoping cylinder 12 stressed is also less than telescoping cylinder stressed of six joint arm telescopic boom devices of prior art, and telescoping cylinder 12 can be selected the oil cylinder that specification is less, to reduce costs;
3) compare with six joint arm telescopic boom devices of prior art, because only adopting a telescoping cylinder and drag-line usage quantity also few, assembly difficulty is also little, has saved manpower and materials; Because having reduced the usage quantity of telescoping cylinder, further reduce the overall weight of telescopic boom in addition, improved the lifting performance of telescopic boom.
4) mode that adopts elevator and rope row structure to match is controlled separately the flexible of auxiliary module inner side joint arm, make auxiliary module inner side save the flexible impact that can not be subject to principal arm module of arm, also make this telescopic boom device can need to determine whether that the inner side joint arm that need to control auxiliary module stretches according to hanging to carry when principal arm module is flexible.
The engineering truck that the embodiment of the present invention provides, comprises turntable and above-mentioned telescopic boom device, and arm tail and the turntable of the first main joint arm 1 of telescopic boom device are hinged.The telescopic boom device providing because of the embodiment of the present invention has above-mentioned technique effect, and the engineering truck that therefore possesses this telescopic boom device also should possess corresponding technique effect, does not repeat them here.Preferably, this project vehicle is for example car hosit.
These are only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a telescopic boom device, is characterized in that, comprising:
Principal arm module, comprises the first main joint arm (1) and is set in successively the main joint arm of at least one joint in described the first main joint arm (1);
Auxiliary module, comprises the first chromaffin body arm (4) and is set in successively at least one joint chromaffin body arm in described the first chromaffin body arm (4);
In described principal arm module, the arm head of the main joint arm in inner side is connected with the arm tail of described the first chromaffin body arm (4);
Described telescopic boom device is when full reduced state, and described the first chromaffin body arm (4) is positioned at the outside of described the first main joint arm (1);
The flexible of chromaffin body arm that respectively save that is positioned at described the first chromaffin body arm inner side driven by lift rope row mechanism.
2. telescopic boom device according to claim 1, is characterized in that, in described principal arm module, the inner side arm head of main joint arm and the arm tail of described the first chromaffin body arm (4) removably connect.
3. telescopic boom device according to claim 1, is characterized in that, the flexible of main joint arm that respectively save that is positioned at described the first main joint arm inner side driven by oil cylinder Sheng Pai mechanism.
4. telescopic boom device according to claim 3, is characterized in that,
Described principal arm module comprises: described the first main joint arm (1), and be set in successively the second main joint arm (2) and the 3rd main joint arm (3) in described the first main joint arm (1);
Described auxiliary module comprises: described the first chromaffin body arm (4), and be set in successively the second chromaffin body arm (5) and the 3rd chromaffin body arm (6) in described the first chromaffin body arm (4).
5. telescopic boom device according to claim 4, is characterized in that,
Described oil cylinder Sheng Pai mechanism comprises: telescoping cylinder (12), and its piston rod is connected with described the first main joint arm (1), and cylinder barrel is connected with described the second main joint arm (2); Be used for semi-girder wheel (71) and semi-girder drag-line (81) that described the 3rd main joint arm (3) is stretched out; Be used for contracting arm wheel (72) and contracting arm drag-line (82) that described the 3rd main joint arm (3) is retracted;
Described lift rope is arranged mechanism and is comprised: the first telescopic boom is taken turns (73), is arranged on the arm head of described the first chromaffin body arm (4); The second telescopic boom is taken turns (74), is arranged on the arm tail of described the second chromaffin body arm (5); The 3rd telescopic boom is taken turns (75), is arranged on the arm head of described the second chromaffin body arm (5); Telescopic boom drag-line (83), one end is connected with the lift rope (101) being wrapped on winding drum (100), the other end is connected with described the 3rd chromaffin body arm (6), and described the first telescopic boom wheel (73), the second telescopic boom wheel (74) and the 3rd telescopic boom wheel (75) are crossed in middle part successively winding;
The arm head place of described the 3rd main joint arm (3) is provided with the first connecting portion (91), and the arm tail place of described the first chromaffin body arm (4) is provided with the second connecting portion (92), and described the second connecting portion (92) is connected with described the first connecting portion (91).
6. telescopic boom device according to claim 5, it is characterized in that, described the first connecting portion connects otic placode for (91) are arranged on first of described the 3rd main joint arm (3) arm head, described the second connecting portion (92) connects otic placode for being arranged on second of described the first chromaffin body arm (4) arm tail, and described first connects otic placode is connected otic placode by bearing pin (93) connection with described second.
7. telescopic boom device according to claim 5, is characterized in that, described lift rope (101) is integral type structure with described telescopic boom drag-line (83); The other end of described telescopic boom drag-line (83) is connected with the arm tail of described the 3rd chromaffin body arm (6).
8. telescopic boom device according to claim 5, is characterized in that,
Described semi-girder wheel (71) is arranged on the cylinder barrel end of described telescoping cylinder (12); The two ends of described semi-girder drag-line (81) are connected with the arm tail of described the 3rd main joint arm (3) with the arm tail of described the first main joint arm (1) respectively, and middle part winding is taken turns on (71) at described semi-girder;
Described contracting arm wheel (72) is arranged on the arm tail of described the second main joint arm (2); The two ends of described contracting arm drag-line (82) are connected with the arm tail of described the 3rd main joint arm (3) with the arm head of described the first main joint arm (1) respectively, and middle part winding is taken turns on (72) at described contracting arm.
9. telescopic boom device according to claim 5, is characterized in that, each arm wheel is pulley, and each drag-line is steel rope; For the oil pipe outer ring sleeve to described telescoping cylinder (12) fuel feeding, holder chain is housed.
10. an engineering truck, comprises turntable, it is characterized in that, also comprises the telescopic boom device described in any one in claim 1 to 9, and arm tail and the described turntable of the first main joint arm (1) of described telescopic boom device are hinged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616149.8A CN103601085B (en) | 2013-11-27 | 2013-11-27 | Telescopic boom device and engineering truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616149.8A CN103601085B (en) | 2013-11-27 | 2013-11-27 | Telescopic boom device and engineering truck |
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| CN103601085B CN103601085B (en) | 2015-08-12 |
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| CN1185413A (en) * | 1996-09-25 | 1998-06-24 | 基德工业有限公司 | Crane capable of carrying |
| JP2001302181A (en) * | 2000-04-24 | 2001-10-31 | Tadano Ltd | Jib extension and storage device of mobile crane |
| CN101443256A (en) * | 2006-05-16 | 2009-05-27 | 特雷克斯-德马格有限公司 | Telescopic crane boom |
| CN102137809A (en) * | 2008-08-29 | 2011-07-27 | 株式会社多田野 | Jib storing device of crane vehicle with jib |
| CN202864749U (en) * | 2012-11-13 | 2013-04-10 | 郑州新大方重工科技有限公司 | Stretching arm type crane |
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- 2013-11-27 CN CN201310616149.8A patent/CN103601085B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1185413A (en) * | 1996-09-25 | 1998-06-24 | 基德工业有限公司 | Crane capable of carrying |
| JP2001302181A (en) * | 2000-04-24 | 2001-10-31 | Tadano Ltd | Jib extension and storage device of mobile crane |
| CN101443256A (en) * | 2006-05-16 | 2009-05-27 | 特雷克斯-德马格有限公司 | Telescopic crane boom |
| CN102137809A (en) * | 2008-08-29 | 2011-07-27 | 株式会社多田野 | Jib storing device of crane vehicle with jib |
| CN202864749U (en) * | 2012-11-13 | 2013-04-10 | 郑州新大方重工科技有限公司 | Stretching arm type crane |
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| CN103601085B (en) | 2015-08-12 |
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