CN203187321U - Telescopic mechanism of telescopic arm as well as crane - Google Patents
Telescopic mechanism of telescopic arm as well as crane Download PDFInfo
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- CN203187321U CN203187321U CN 201320157774 CN201320157774U CN203187321U CN 203187321 U CN203187321 U CN 203187321U CN 201320157774 CN201320157774 CN 201320157774 CN 201320157774 U CN201320157774 U CN 201320157774U CN 203187321 U CN203187321 U CN 203187321U
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Abstract
The utility model discloses a telescopic mechanism of a telescopic arm as well as a crane. The crane is provided with the telescopic mechanism of the telescopic arm. The telescopic mechanism of the telescopic arm comprises a basic arm (1), a second section of arm (4) and a third section of arm (6), arm retracting ropes (13) of the three sections of arms, a first arm retracting wheel (14a), a second arm retracting wheel (14b) and auxiliary arm retracting wheels (16 and 16a), wherein the second section of arm (4) and the third section of arm (6) are sleeved in the basic arm (1); the first arm retracting wheel (14a) and the second arm retracting wheel (14b) are arranged at the root part of the second section of arm (4); the auxiliary arm retracting wheels (16 and 16a) are arranged at the root part of the third section of arm (6); the arm retracting ropes (13) of the three sections of arms sequentially bypass the first arm retracting wheel (14a), the auxiliary arm retracting wheels (16 and 16a) and the second arm retracting wheel (14b), and two ends of the arm retracting ropes (13) of the three sections of arms are fixed at the front end of the basic arm (1). Therefore, only one arm retracting rope of the three sections of arms is used to sequentially bypasses the first arm retracting wheel (14a), the auxiliary arm retracting wheels (16 and 16a) and the second arm retracting wheel (14b), the pull force the same as that of two ropes in the prior art is realized, and defects caused by adopting two ropes are prevented.
Description
Technical field
The utility model relates to field of mechanical technique, and especially the elevator machinery technical field particularly relates to a kind of telescopic boom telescoping mechanism and hoisting crane.
Background technology
In field of mechanical technique, telescopic boom is a kind of structure commonly used.For example, a lot of elevator machineries adopt telescopic boom, and the telescopic boom telescoping mechanism then is the important component part of described telescopic boom.
In existing four joint arm crane arms, the telescoping mechanism of employing mainly is that telescopic oil cylinder adds flexible rope row mode.Flexible rope row is two groups and stretches rope and cooperates with two groups of contracting ropes, telescopic oil cylinder stretch out and withdrawal through described flexible rope transmission, drive respectively saves stretching of telescopic boom.
Fig. 1 is the principle schematic of four joint arm telescoping mechanisms of the prior art.Fig. 2 is that the schematic A of four joint arm telescoping mechanisms shown in Figure 1 is to view.Fig. 3 is that scheme drawing is looked on four right sides of saving the arm telescoping mechanisms shown in Figure 1.
In four joint arm telescoping mechanisms shown in Figure 1, four joint arm contracting arm ropes 3 of the 4th joint arm that contracts are one.It is two that three of the 3rd joint arm that contracts saves arm contracting arm ropes, i.e. contracting arm rope 13a and 13b.The telescopic oil cylinder 12 flexible second joint arms 4, rope row 11 stretches the 3rd joint arm 6, and rope row 5 stretches the 4th joint arm 7.
As shown in Figure 1, this four joints synchronous telescopic boom comprises basic arm 1, and is set in wherein the second joint arm 4, the 3rd joint arm 6 and the 4th joint arm 7 successively.In the arm body of the 4th joint arm 7, be provided with telescopic oil cylinder 12.The cylinder barrel of telescopic oil cylinder 12 is connected with the second joint arm 4, and the cylinder bar is connected with basic arm 1 at hinge axle 15 places.
When the rodless cavity oil-feed of telescopic oil cylinder 12, its cylinder barrel protracts, and (supposition speed drives the second joint arm 4 and stretches out for v), and the speed of protracting of the second joint arm 4 is v, realizes that the second joint arm 4 and the cylinder barrel of telescopic oil cylinder stretch out synchronously.Be also referred to as the second semi-girder rope by three joint arm semi-girder ropes 11 and four joint arm semi-girder rope 5(simultaneously) make the 3rd joint arm 6 protract with the speed of 2v, make the 4th joint arm 7 protract with the speed of 3v.
When the rod chamber oil-feed of telescopic oil cylinder, cylinder barrel retraction (supposition speed is v1), drive the second joint arm, 4 retractions (speed is v1) by cylinder barrel, three joint arm contracting arm wheels 14 on the second joint arm, the 4 root pulley yokes comprise three joint arm first contracting arm wheel 14a and three joint arms, second contracting arm wheel 14b, and three joint arm first contracting arm wheel 14a and three joint arms, second contracting arm wheel 14b drive the 3rd joint arm 6 with retraction speed (2v1) retraction of 4 two times on the second joint arm by three joint arm contracting arm rope 13a and 13b respectively.Simultaneously, four joint arm contracting arm wheel 2(on the 3rd joint arm roots pulley yoke are also referred to as the 3rd contracting arm wheel) be also referred to as the second contracting arm rope by four joint arm contracting arm rope 3() drive the 4th joint arm 7 with the speed retraction of three times of cylinder barrel retraction speeds (3v1), thus realize the synchronous retraction of the second joint arm 4, the 3rd joint arm 6 and the 4th joint arm 7.
Because three joint arm contracting arm ropes need bear bigger power, so, need to arrange side by side as shown in Figures 2 and 3 two three joint arm contracting arm rope 13a and 13b usually.Can bear bigger power preferably although adopt two three joint arm contracting arm rope 13a and 13b to make, also bring following shortcoming:
1) the contracting arm rope of two bilateral symmetry layouts can't be accomplished both sides contracting arm rope effective length symmetry fully when assembling and setting, be difficult to accomplish the stressed even distribution of both sides contracting arm rope, under the state of long-time unbalance stress, cause a side contracting arm rope bigger elongation to occur easily, in the arm-stretching exercise process, more serious relaxation can appear in this side contracting arm rope, and lax steel rope is easy to pulley, causes that contracting arm rope falls the generation of groove fault.
2) the contracting arm rope of two bilateral symmetry layouts can't be accomplished both sides contracting arm rope effective length symmetry fully when assembling and setting, is difficult to accomplish the stressed even distribution of both sides contracting arm rope, may cause the generation of contracting arm jitterbug.
Therefore, wish to have a kind of novel telescopic boom telescoping mechanism to overcome or alleviate the defective of two contracting arm rope bands arranged side by side of prior art at least.
The utility model content
Term herein " auxiliary contracting arm wheel " refers to that for the member of realizing auxiliary contracting arm its concrete function is the direction that changes contracting arm rope.But its shape is not must be complete circle, but can be large semi-circular, semicircle, half moon, or any suitable shape, even can have linear portion as required, as long as can realize changing this function of contracting arm rope.
The purpose of this utility model is to provide a kind of novel telescopic boom telescoping mechanism to overcome or alleviates the next defective of two contracting arm rope bands arranged side by side of prior art at least.
For achieving the above object, the utility model provides a kind of telescopic boom telescoping mechanism, and described telescopic boom telescoping mechanism comprises: basic arm; Be socketed on the second joint arm and the 3rd joint arm in the described basic arm successively; One three joint arm contracting arm rope; And the three joint arm first contracting arm wheels and three joint arms, the second contracting arm wheel that are arranged at the second joint arm roots, described telescopic boom telescoping mechanism further comprises: the auxiliary contracting arm wheel that is arranged at the 3rd joint arm roots, wherein, described three joint arm contracting arm ropes are walked around described three joint arms, first contracting arm wheel, described auxiliary contracting arm wheel and described three joint arms, second contracting arm wheel successively, and two ends all are fixed on the front end of basic arm.
Thereby, only use one three joint arm contracting arm rope, by making described one three joint arm contracting arm rope walk around described three joint arms, first contracting arm wheel, described auxiliary contracting arm wheel and described three joint arms, second contracting arm wheel successively, realized with prior art in two same pulling force of rope, and avoided the shortcoming that adopts two ropes to cause.
Preferably, the axis of described three joint arms, first contracting arm wheel, described auxiliary contracting arm wheel and described three joint arms, second contracting arm wheel is parallel to each other.It is pointed out that described three axis have only two to be parallel to each other, or three axis are not parallel to each other and are fine yet, be also contained within the protection domain of the present utility model.
Preferably, described three joint arms first contracting arm wheels are parallel to each other with the axis that described three joint arms, the second contracting arm is taken turns, and the axis of taking turns perpendicular to described auxiliary contracting arm.
Preferably, described auxiliary contracting arm wheel rotatably is arranged at described the 3rd joint arm roots.
Preferably, described auxiliary contracting arm wheel is arranged at described the 3rd joint arm roots in non-rotatable mode.
Preferably, described auxiliary contracting arm wheel is the first quarter moon wheel.
Preferably, described telescopic boom telescoping mechanism further comprises: be socketed on the 4th joint arm in the 3rd joint arm, and telescopic oil cylinder, the cylinder bar of described telescopic oil cylinder and cylinder barrel are individually fixed in described basic arm and the described second joint arm.Described telescopic boom telescoping mechanism also comprises: three joint arm semi-girder ropes and the first semi-girder pulley that is arranged at described cylinder barrel, and described three joint arm semi-girder ropes are walked around the described first semi-girder pulley, and two ends are individually fixed in described basic arm root and described the 3rd joint arm roots; Four joint arm semi-girder ropes and the four joint arm semi-girders wheels that are arranged at the 3rd joint arm front end, four joint arm semi-girder ropes are walked around described four and are saved arm semi-girders wheel, and two ends are separately fixed at the root of the 4th joint arm roots and the second joint arm; And four joint arm contracting arm ropes and be arranged at four joint arm contracting arms wheels of the 3rd joint arm roots, described four joint arm contracting arm ropes are walked around described four joint arm contracting arms and are taken turns, and two ends are separately fixed at cylinder barrel end and the 4th and save arm roots.
The utility model also provides a kind of hoisting crane, the aforesaid telescopic boom telescoping mechanism of described hoisting crane.
Description of drawings
Fig. 1 is the principle schematic of four joint arm telescoping mechanisms of the prior art.
Fig. 2 is that the schematic A of four joint arm telescoping mechanisms shown in Figure 1 is to view.
Fig. 3 is that scheme drawing is looked on four right sides of saving the arm telescoping mechanisms shown in Figure 1.
Fig. 4 be according to the utility model first embodiment the principle schematic of four joint arm telescoping mechanisms.
Fig. 5 is that the schematic B of four joint arm telescoping mechanisms shown in Figure 4 is to view.
Fig. 6 is that scheme drawing is looked on four right sides of saving the arm telescoping mechanisms shown in Figure 4.
Fig. 7 be according to the utility model second embodiment the principle schematic of four joint arm telescoping mechanisms.
Fig. 8 is the schematic top plan view (for more clearly illustrating, Fig. 8 left-hand revolution 90 spend) of three joint arm contracting arm ropes and the associated components of four joint arm telescoping mechanisms shown in Figure 7.
Fig. 9 is the detour scheme drawings of distribution method of the another kinds of three joint arm contracting arm ropes and associated components, and wherein three joint arms, first contracting arm wheel, three joint arms, the second contracting arm are taken turns and to assist the contracting arm to take turns this three's axis not parallel to each other.
Reference numeral:
| 1 | |
11 | Three joint arm semi-girder ropes |
| 2 | Four joint arm contracting |
12 | Telescopic oil cylinder |
| 3 | Four joint arm |
13,13a,13b | Three joint arm contracting arm ropes |
| 4 | The second |
14a,14a1,14a2 | Three joint arms, first contracting |
| 5 | Four joint |
14b,14b1,14b2 | Three joint arms, second contracting |
| 6 | The 3rd |
15 | Telescopic oil |
| 7 | The |
16,16a | Auxiliary contracting |
| 8 | Four joint arm semi-girder wheels | ? | ? |
| 9 | Telescopic oil cylinder support pulley | ? | ? |
| 10 | The stent support wheel | ? | ? |
The specific embodiment
For purpose, technical scheme and advantage that the utility model is implemented is clearer, below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is carried out more detailed description.In the accompanying drawings, identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, rather than whole embodiment.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Based on the embodiment in the utility model; those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, and the scope that all belongs to the utility model protection is elaborated to embodiment of the present utility model below in conjunction with accompanying drawing.
In description of the present utility model; it will be appreciated that; term " " center "; " vertically "; " laterally "; " preceding "; " back "; " left side "; " right side "; " vertically "; " level "; " top "; " end " " interior "; close the orientation of indications such as " outward " or position is based on orientation shown in the drawings or position relation; only be the utility model and simplification description for convenience of description; rather than device or the element of indication or hint indication must have specific orientation; with specific orientation structure and operation, therefore can not be interpreted as the restriction to the utility model protection domain.
Fig. 4 is the principle schematic according to the four joint arm telescoping mechanisms of the utility model first embodiment.Fig. 5 is that the schematic B of four joint arm telescoping mechanisms shown in Figure 4 is to view.Fig. 6 is that scheme drawing is looked on four right sides of saving the arm telescoping mechanisms shown in Figure 4.
As shown in Fig. 4-6, the telescopic boom telescoping mechanism of the utility model first embodiment comprises: basic arm 1; Be socketed on the second joint arm 4 and the 3rd joint arm 6 in the described basic arm 1 successively; One three joint arm contracting arm rope 13; And the three joint arm contracting arm wheel 14(that are arranged at the second joint arm, 4 roots comprise three joint arm first contracting arm wheel 14a1 and three joint arms, second contracting arm wheel 14b1).Described telescopic boom telescoping mechanism further comprises: the auxiliary contracting arm wheel 16 that is arranged at the 3rd joint arm 6 roots.Three joint arm contracting arm ropes 13 are walked around described three joint arms, first contracting arm wheel 14a1, described auxiliary contracting arm wheel 16 and described three joint arms, second contracting arm wheel 14b1 successively, and two ends M, N all are fixed on the front end of basic arm 1.Thereby, only use one three joint arm contracting arm rope, by making described one three joint arm contracting arm rope walk around described three joint arms, first contracting arm wheel 14a1, described auxiliary contracting arm wheel 16 and described three joint arms, second contracting arm wheel 14b1 successively, realized with prior art in two same pulling force of rope, and avoided the shortcoming that adopts two ropes to cause.
As Fig. 4 and shown in Figure 6, the axis of three joint arm first contracting arm wheel 14a1 and described three joint arms, second contracting arm wheel 14b1 is parallel to each other, and takes turns 16 axis perpendicular to described auxiliary contracting arm.Described auxiliary contracting arm wheel 16 is arranged at described the 3rd joint arm 6 roots in non-rotatable mode.And described auxiliary contracting arm wheel 16 is first quarter moon wheel (referring to Fig. 5).Be understandable that, the function of auxiliary contracting arm wheel 16 is that to assist the contracting arm to take turns 16 shapes be not must be complete circle for the direction that changes contracting arm rope 13, but can be large semi-circular, semicircle, half moon, or any suitable shape, even can have linear portion as required, as long as can realize changing this function of contracting arm rope.
Referring to Fig. 4, the telescopic boom telescoping mechanism of first embodiment also comprises: be socketed on the 4th joint arm 7 in the 3rd joint arm 6, and telescopic oil cylinder 12.The cylinder bar of described telescopic oil cylinder 12 and cylinder barrel are fixedly connected on described basic arm 1 and the second joint arm 4 respectively.
The telescopic boom telescoping mechanism of first embodiment also comprises: three joint arm semi-girder ropes 11 and the first semi-girder pulley 9 that is arranged at described cylinder barrel.Described three joint arm semi-girder ropes 11 are walked around the described first semi-girder pulley 9, and two ends are individually fixed in described basic arm 1 root and described the 3rd joint arm 6 roots.
The telescopic boom telescoping mechanism of first embodiment also comprises: four joint arm semi-girder ropes 5 and the four joint arm semi-girders wheels 8 that are arranged at the 3rd joint arm 6 front ends.Four joint arm semi-girder ropes 5 are walked around described four joint arm semi-girder wheels 8, and two ends are separately fixed at the root of the 4th joint arm 7 roots and the second joint arm 4.
The telescopic boom telescoping mechanism of first embodiment also comprises: four joint arm contracting arm ropes 3 and the four joint arm contracting arms wheels 2 that are arranged at the 3rd joint arm 6 roots.Described four joint arm contracting arm ropes 3 are walked around described four joint arm contracting arm wheels 2, and two ends are separately fixed at terminal and the 4th joint arm 7 roots of cylinder barrel.
Because the cylinder barrel of telescopic oil cylinder 12 is connected with the second joint arm 4, the cylinder bar is connected with basic arm 1 at hinge axle 15 places.Thereby when the rodless cavity oil-feed of telescopic oil cylinder 12, the cylinder barrel of telescopic oil cylinder 12 protracts, and (supposition speed drives the second joint arm 4 and stretches out for v), and the speed of protracting of the second joint arm 4 also is v, realizes that the second joint arm 4 and the cylinder barrel of telescopic oil cylinder stretch out synchronously.
Three joint arm semi-girder ropes, 11 1 ends are fixed on the end of basic arm 1, and the other end is also referred to as telescopic oil cylinder support pulley by the first semi-girder pulley 9(that is fixed in the cylinder barrel afterbody), be fixed on the root of the 3rd joint arm 6.Thereby when stretching out, the first semi-girder pulley 9 stretches out synchronously with the cylinder barrel of telescopic oil cylinder 12, and the 3rd joint arm 6 of three joint arm semi-girder ropes, 11 drives simultaneously stretches out forward with the speed (2v) of two times of telescopic oil cylinder cylinder barrels.That is, the speed of protracting (2v) of the 3rd joint arm 6 is that the second joint arm speed of protracting (is stretched out synchronously thereby twice v) realizes the second joint arm and the 3rd joint arm.That is to say that the speed (2v-v=v) that the 3rd joint arm 6 stretches out from the second joint arm 4 equals the speed (v-0=v) that the second joint arm 4 stretches out from basic arm 1.
Four joint arm semi-girder ropes, 5 one ends are fixed on the jointed shaft of the 4th joint arm roots, and are fixed on the bottom of the second joint arm 4 by four joint arm semi-girder wheels, 8, four joint arm semi-girder ropes, 5 other ends of the 3rd joint arm end.At the second joint arm 4 and the 3rd joint when arm 6 stretches out synchronously, four joint arm semi-girder ropes 5 drive the 4th joint arm 7 and protract with the speed (3v) of three times of telescopic oil cylinder cylinder barrels, thereby the 4th joint arm 7 equals the 3rd joint arm 6 with respect to the speed of stretching out (2v-v=v) of the second joint arm 4 with respect to the speed of stretching out (3v-2v=v) of the 3rd joint arm 6, and equals the second joint arm 4 with respect to the speed of stretching out (v-0=v) of basic arm 1.Realize stretching out synchronously of the second joint arm 4, the 3rd joint arm 6 and the 4th joint arm 7 thus.
When the rod chamber oil-feed of telescopic oil cylinder, cylinder barrel retraction (supposition speed is v1), drive the second joint arm, 4 retractions (speed is v1) by cylinder barrel, three joint arms, the first contracting arm wheel 14 on the second joint arm, the 4 root pulley yokes drives the 3rd joint arm 6 with retraction speed (2v1) retraction of 4 two times on the second joint arm by three joint arm contracting arm ropes 13.Simultaneously, four joint arm contracting arm wheels 2 on the 3rd joint arm roots pulley yoke drive the 4th joint arm 7 with the speed retraction of three times of cylinder barrel retraction speeds (3v1) by four joint arm contracting arm ropes 3, thereby realize the synchronous retraction of the second joint arm 4, the 3rd joint arm 6 and the 4th joint arm 7.
Fig. 7 be according to the utility model second embodiment the principle schematic of four joint arm telescoping mechanisms.Fig. 8 is three joint arm contracting arm ropes of four joint arm telescoping mechanisms shown in Figure 7 and the schematic top plan view of associated components.For more clearly illustrating, Fig. 8 left-hand revolution 90 degree.That is to say that in Fig. 8, left is the direction that telescopic boom stretches out, right-hand direction for the telescopic boom withdrawal.
In Fig. 7 and embodiment shown in Figure 8, three joint arms, first contracting arm wheel 14a2, auxiliary contracting arm wheel 16a and three save the arms second contracting arm and take turns the axis of 14b2 and be parallel to each other.The front end that the two ends M of three joint arm contracting arm ropes 13 and N are separately fixed at basic arm 1.Advantageously, auxiliary contracting arm wheel 16a rotatably is arranged at described the 3rd joint arm 6 roots.It is pointed out that in theory 13 motions with respect to auxiliary contracting arm wheel 16a of three joint arm contracting arm ropes are zero, and are perhaps very little.Thereby auxiliary contracting arm wheel 16a is set to fix and does not rotate, and also is feasible.It is pointed out that also described three axis have only two to be parallel to each other, or three axis are not parallel to each other and are fine yet, be also contained within the protection domain of the present utility model.For example, in the joint of three shown in Fig. 9 arm contracting arm rope detours mode, the axis normal of auxiliary contracting arm wheel is in paper, the axis of three joint arms, first contracting arm wheel is not orthogonal to paper, the axis of three joint arms second contracting arm wheels also are not orthogonal to paper, and the direction of tilt of the axis of taking turns with three joint arms, the first contracting arm is opposite.That is to say that the axis of the axis of auxiliary contracting arm wheel, three joint arms, first contracting arm wheel and the axis line of three joint arms, second contracting arm wheel are not parallel to each other.
Above-mentioned telescopic boom telescoping mechanism can be applied to hoisting crane (for example lorry-mounted crane, wheel crane or locomotive crane) or need other devices or the machinery of telescoping mechanism.Can realize the pulling force of two ropes by a rope, and the problems such as overbalance that occur through regular meeting can avoid using simultaneously two ropes the time.Both can avoid or alleviate the generation that contracting arm rope falls the groove fault, also can avoid or alleviate the generation of contracting arm jitterbug.
The utility model uses the contracting arm rope of a cycle arrangement, by assembly pulley transmission contracting arm strength, when assembling and setting, can realize both sides contracting arm rope effective length symmetry fully, both sides contracting arm rope is stressed evenly, cycle arrangement by contracting arm rope, the serious relaxation of one-sided contracting arm rope can not occur, reduce the generation that contracting arm rope falls the groove fault.
It is to be noted at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit.Although with reference to previous embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.For example, although the utility model describes in conjunction with four joint arm telescopic booms, also can be used for three joint arm telescopic booms.
Claims (8)
1. a telescopic boom telescoping mechanism comprises: basic arm (1); Be socketed on the second joint arm (4) and the 3rd joint arm (6) in the described basic arm (1) successively; One three joint arm contracting arm rope (13); And the three joint arm first contracting arm wheels (14a) and the three joint arm second contracting arm wheels (14b) that are arranged at second joint arm (4) root,
It is characterized in that described telescopic boom telescoping mechanism further comprises:
Be arranged at the auxiliary contracting arm wheel (16 of the 3rd joint arm (6) root; 16a), wherein, described one three joint arm contracting arm rope (13) is walked around described three joint arm first contracting arm wheels (14a), described auxiliary contracting arm wheel (16 successively; 16a) with described three joint arms second contracting arm wheels (14b), and two ends all are fixed on the front end of basic arm (1).
2. telescopic boom telescoping mechanism as claimed in claim 1 is characterized in that, described three joint arms, the first contracting arm is taken turns (14a), (16,16a) axis with described three joint arm second contracting arm wheels (14b) are parallel to each other described auxiliary contracting arm wheel.
3. telescopic boom telescoping mechanism as claimed in claim 1 is characterized in that, described three save arms first contracting arm wheel (14a) is parallel to each other with described three axis that save arms second contracting arm wheel (14b), and takes turns the axis of (16) perpendicular to described auxiliary contracting arm.
4. as each described telescopic boom telescoping mechanism among the claim 1-3, it is characterized in that described auxiliary contracting arm wheel rotatably is arranged at described the 3rd joint arm (6) root.
5. as each described telescopic boom telescoping mechanism among the claim 1-3, it is characterized in that described auxiliary contracting arm wheel is arranged at described the 3rd joint arm (6) root in non-rotatable mode.
6. as each described telescopic boom telescoping mechanism among the claim 1-3, it is characterized in that described auxiliary contracting arm wheel is the first quarter moon wheel.
7. as each described telescopic boom telescoping mechanism among the claim 1-3, it is characterized in that, further comprise: be socketed on the 4th joint arm (7) in the 3rd joint arm (6), and telescopic oil cylinder (12), the cylinder bar of described telescopic oil cylinder (12) and cylinder barrel are individually fixed in described basic arm (1) and the described second joint arm (4);
Described telescopic boom telescoping mechanism also comprises:
Three joint arm semi-girder ropes (11) and be arranged at the first semi-girder pulley (9) of described cylinder barrel, described three joint arm semi-girder ropes (11) are walked around the described first semi-girder pulley (9), and two ends are individually fixed in described basic arm (1) root and described the 3rd joint arm (6) root;
Four joint arm semi-girder ropes (5) and the four joint arm semi-girders that are arranged at the 3rd joint arm (6) front end are taken turns (8), four joint arm semi-girder ropes (5) are walked around described four joint arm semi-girder wheels (8), and two ends are separately fixed at the root of the 4th joint arm (7) root and the second joint arm (4);
Four joint arm contracting arm ropes (3) and be arranged at three joint arms second contracting arm wheels (2) of the 3rd joint arm (6) root, described four joint arm contracting arm ropes (3) are walked around described four and are saved arm contracting arms and take turns (2), and two ends are separately fixed at cylinder barrel end and the 4th and save arm (7) root.
8. a hoisting crane is characterized in that, comprises as each described telescopic boom telescoping mechanism among the claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157774 CN203187321U (en) | 2013-04-01 | 2013-04-01 | Telescopic mechanism of telescopic arm as well as crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157774 CN203187321U (en) | 2013-04-01 | 2013-04-01 | Telescopic mechanism of telescopic arm as well as crane |
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| Publication Number | Publication Date |
|---|---|
| CN203187321U true CN203187321U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320157774 Expired - Lifetime CN203187321U (en) | 2013-04-01 | 2013-04-01 | Telescopic mechanism of telescopic arm as well as crane |
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| CN (1) | CN203187321U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071711A (en) * | 2014-07-09 | 2014-10-01 | 徐州重型机械有限公司 | Crane and telescopic arm structure thereof |
| CN104743443A (en) * | 2014-07-26 | 2015-07-01 | 周红玉 | Telescopic boom |
| CN104989797A (en) * | 2015-06-30 | 2015-10-21 | 南京晨光集团有限责任公司 | Three-level telescopic arm |
| CN105480879A (en) * | 2016-01-20 | 2016-04-13 | 湖南中涛起重科技有限公司 | Telescopic multifunctional intelligent operation arm |
| CN107777542A (en) * | 2017-11-17 | 2018-03-09 | 中冶赛迪装备有限公司 | Load coil of strip fixture and its balance system onto ship |
| CN107777542B (en) * | 2017-11-17 | 2024-06-28 | 中冶赛迪装备有限公司 | Ship-loading steel coil clamp |
-
2013
- 2013-04-01 CN CN 201320157774 patent/CN203187321U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071711A (en) * | 2014-07-09 | 2014-10-01 | 徐州重型机械有限公司 | Crane and telescopic arm structure thereof |
| CN104743443A (en) * | 2014-07-26 | 2015-07-01 | 周红玉 | Telescopic boom |
| CN104989797A (en) * | 2015-06-30 | 2015-10-21 | 南京晨光集团有限责任公司 | Three-level telescopic arm |
| CN105480879A (en) * | 2016-01-20 | 2016-04-13 | 湖南中涛起重科技有限公司 | Telescopic multifunctional intelligent operation arm |
| CN105480879B (en) * | 2016-01-20 | 2017-03-22 | 湖南中涛起重科技有限公司 | Telescopic multifunctional intelligent operation arm |
| CN107777542A (en) * | 2017-11-17 | 2018-03-09 | 中冶赛迪装备有限公司 | Load coil of strip fixture and its balance system onto ship |
| CN107777542B (en) * | 2017-11-17 | 2024-06-28 | 中冶赛迪装备有限公司 | Ship-loading steel coil clamp |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201010 Address after: No.202 Xuanfu street, Xuanhua District, Zhangjiakou, Hebei Province Patentee after: Hebei Leisa Heavy Construction Machinery Co.,Ltd. Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |