CN103526942B - Concrete mixer and jib bindiny mechanism thereof - Google Patents
Concrete mixer and jib bindiny mechanism thereof Download PDFInfo
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- CN103526942B CN103526942B CN201310441230.7A CN201310441230A CN103526942B CN 103526942 B CN103526942 B CN 103526942B CN 201310441230 A CN201310441230 A CN 201310441230A CN 103526942 B CN103526942 B CN 103526942B
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Abstract
The invention discloses a kind of concrete mixer and jib bindiny mechanism thereof; The jib that this jib bindiny mechanism comprises the first telescopic oil cylinder, turntable and is hinged on turntable, the two ends of the first telescopic oil cylinder respectively with turntable and jib hinged; This jib bindiny mechanism also comprises connecting rod and telescoping mechanism, connecting rod is provided with the first pin joint and the second pin joint, the first pin joint and turntable hinged, the second pin joint and jib hinged, one end of telescoping mechanism is hinged on connecting rod, and the other end and the turntable of telescoping mechanism are hinged; Telescoping mechanism rotates around the first pin joint for driving the second pin joint.Because the pin joint of jib and connecting rod can move, thus turntable can realize the switching to the non-layback of the heart and the eccentric two kinds of form of structure of layback, makes this jib bindiny mechanism can realize greatly enhancing bridge ratio, can ensure that again turntable is better stressed, reduce potential safety hazard.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of concrete mixer and jib bindiny mechanism thereof.
Background technology
Concrete mixer generally comprises the pumping mechanism be integrated on chassis, slew gear, jib bindiny mechanism and jib, is the concrete conveying equipment integrating enforcement, pumping, cloth function.Wherein, jib bindiny mechanism comprises turntable, and one end of jib is articulated with on turntable.Along with the renewal progress of technology, a lot of concrete equipment company all greatly enhances bridge and compares pump truck putting forth effort exploitation, such as 3 bridge 50m, 4 bridge 60m, 5 bridge 66m etc. greatly enhance bridge becomes than pump truck the product that enterprise falls over each other to develop, and these greatly enhance bridge and have than pump truck that bridge number is few, lightweight, good by property, low cost and other advantages.
The turntable of current concrete mixer mainly contains the non-layback of the heart and the eccentric two kinds of form of structure of layback, to the feature of the heart non-layback structure turntable be, the pin joint of jib and turntable is positioned on the centre of gyration line of turntable all the time, the turntable of this structure is stressed more even, but consider chassis cost, be unfavorable for the layout of jib, be particularly difficult to realization and greatly enhance bridge ratio; The feature of layback eccentric structure turntable is, the pin joint of jib and turntable is not be positioned on the centre of gyration line of turntable, but the headstock direction of deflection concrete mixer, the turntable of this structure can realize greatly enhancing bridge and compare pump truck, but the turntable of this structure is stressed very uneven,, there is potential safety hazard in easy generation cracking and bolt fracture fault.
Summary of the invention
In view of this, the present invention proposes a kind of jib bindiny mechanism, and this jib bindiny mechanism can realize greatly enhancing bridge ratio, can ensure that again turntable is better stressed, reduces potential safety hazard; In addition, present invention also offers a kind of concrete mixer being provided with this jib bindiny mechanism.
On the one hand, the invention provides a kind of jib bindiny mechanism, comprise the first telescopic oil cylinder, turntable and jib, the two ends of described first telescopic oil cylinder respectively with described turntable and jib hinged; This jib bindiny mechanism also comprises connecting rod and telescoping mechanism, described connecting rod is provided with the first pin joint and the second pin joint, described first pin joint and described turntable hinged, described second pin joint and described jib hinged, one end of described telescoping mechanism and described rod hinge connection, the other end and the described turntable of described telescoping mechanism are hinged; Described telescoping mechanism rotates around described first pin joint for driving described second pin joint.
Further, described connecting rod is also provided with the 3rd pin joint, one end of described telescoping mechanism is hinged on described 3rd pin joint.
Further, described connecting rod is triangular structure, and described first pin joint, the second pin joint and the 3rd pin joint lay respectively at three vertex positions of the connecting rod of described triangular structure.
Further, described telescoping mechanism is the second telescopic oil cylinder or rack-and-pinion.
Further, the side plate of described turntable has arc guide groove, one end hinge of described 3rd pin joint and telescoping mechanism, described bearing pin and described arcuate guide slot fit, described arc guide groove is offered along the movement locus of described 3rd pin joint.
Further, the length of described arc guide groove is equal with the length of the movement locus of described 3rd pin joint.
Further, the side plate of described turntable has arc guide groove, described second pin joint and jib are by hinge, and described bearing pin and described arcuate guide slot fit, described arc guide groove is offered along the movement locus of described second pin joint.
Further, the peak of described turntable is lower than the extreme higher position of described second pin joint.
Further, described connecting rod is between the biside plate of described turntable; Or the quantity of described connecting rod is two, and lays respectively at the outside of the biside plate of described turntable; Or the quantity of described connecting rod is one, and is positioned at the outside of side plate described in any one.
On the other hand, the present invention also provides a kind of concrete mixer, comprises fixing capstan head and is arranged on the slew gear on described fixing capstan head; This concrete mixer also comprises the jib bindiny mechanism described in above-mentioned any one, and described turntable is arranged on described slew gear.
A kind of jib bindiny mechanism provided by the invention, due to the setting of connecting rod and telescoping mechanism, telescoping mechanism can drive link rotate around the first pin joint, thus the position of the second pin joint can be changed, namely change the position of the pin joint of jib and connecting rod, and then realize the switching of turntable to the non-layback of the heart and layback bias two kinds of form of structure; Like this, this jib bindiny mechanism can realize greatly enhancing bridge ratio, can ensure that again turntable is better stressed, reduces potential safety hazard.Specific implementation process is, first the length of the first telescopic oil cylinder and telescoping mechanism is adjusted, expansion jib and drive link are rotated around the first pin joint, the second pin joint is made to be positioned on the centre of gyration line of turntable, turntable is now to the non-layback structure of the heart, the turntable of this structure is stressed relatively more even, can bear larger active force, reduces the potential safety hazards such as the cracking that causes because of turntable unbalance stress and bolt fracture; When needs draw jib in, shrink the first telescopic oil cylinder, and drive telescoping mechanism, connecting rod is rotated around the first pin joint, first pin joint slowly can depart from the centre of gyration line of turntable, headstock direction towards concrete mixer is moved, turntable is now layback eccentric structure, because jib is now in rounding state, therefore do not need to bear too large active force, again because the pin joint (i.e. the second pin joint) of jib and connecting rod has been partial to headstock direction, make the arrangement space of jib on chassis larger, thus be conducive to realizing jib greatly enhance bridge ratio.
In addition, the side plate of turntable has arc guide groove, and this arc guide groove is offered along the movement locus of the second pin joint or the 3rd pin joint, provide guide effect in the process that such arc guide groove can rotate around the first pin joint at connecting rod, make the rotation of connecting rod more steady; Moreover the length of the movement locus of the length of arc guide groove and the second pin joint or the 3rd pin joint is equal, and make the rotation amplitude of connecting rod be subject to position-limiting action, the change being conducive to telescoping mechanism length controls; In addition, two end positions of arc guide groove when connecting rod is in two extreme positions, for connecting rod provides certain supporting role, can reduce the stressed of telescoping mechanism accordingly.
In addition, the height of turntable can design lower than turntable of the prior art, and namely the peak of turntable lower than the extreme higher position of described second pin joint, can change the design feature of traditional turntable like this, make turntable structure more simple, facilitate processing and manufacturing and cost-saving.
Accompanying drawing explanation
The accompanying drawing forming 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, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Structural representation when Fig. 1 is the jib expansion of a kind of jib bindiny mechanism in the embodiment of the present invention;
Structural representation when Fig. 2 is the jib expansion of another kind of jib bindiny mechanism in the embodiment of the present invention;
Structural representation when Fig. 3 is the jib gathering of Tu2Zhong jib bindiny mechanism;
Structural representation when Fig. 4 is the jib expansion of another jib bindiny mechanism in the embodiment of the present invention;
Fig. 5 is the structural representation of a kind of turntable in the embodiment of the present invention;
Fig. 6 is the structural representation of another turntable in the embodiment of the present invention;
Fig. 7 is the structural representation of the connecting rod of embodiment of the present invention intermediate cam shape structure.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.1 to accompanying drawing 7 also describes the present invention in detail in conjunction with the embodiments below with reference to the accompanying drawings.
As shown in Figure 1, a kind of jib bindiny mechanism that the specific embodiment of the invention provides, comprise the first telescopic oil cylinder 3, turntable 2 and jib 1, first telescopic oil cylinder 3 two ends respectively with turntable 2 and jib 1 hinged; This jib bindiny mechanism also comprises connecting rod 5 and telescoping mechanism 4, connecting rod 5 is provided with the first pin joint 51, second pin joint 52 and the 3rd pin joint 53, first pin joint 51 is hinged with turntable 2, second pin joint 52 is hinged with jib 1,3rd pin joint 53 is hinged with one end of telescoping mechanism 4, and the other end and the turntable 2 of telescoping mechanism 4 are hinged; Telescoping mechanism 4 rotates around the first pin joint 51 for driving the second pin joint 52.It should be noted that, connecting rod 5 also only can be established the first pin joint 51 and the second pin joint 52, first pin joint 51 is hinged with turntable 2, second pin joint 52 is hinged with jib 1, one end of telescoping mechanism 4 is hinged on the second pin joint 52, in fact, the difference of the program and such scheme is, the second pin joint 52 overlaps with the position of the 3rd pin joint 53.But the stability arranging three pin joints is higher than the scheme of only establishing two pin joints.
This jib bindiny mechanism is due to connecting rod 5 and the setting of telescoping mechanism 4, telescoping mechanism 4 can drive link 5 rotate around the first pin joint 51, thus the position of the second pin joint 52 can be changed, namely change the position of the pin joint of jib 1 and connecting rod 5, and then realize the switching of turntable 2 pairs of non-layback of the heart and the eccentric two kinds of form of structure of layback; Like this, this jib bindiny mechanism can realize greatly enhancing bridge ratio, can ensure again turntable 2 uniform force, reduces the potential safety hazard that turntable 2 ftractures or bolt fracture fault is brought.The detailed process realizing the switching of turntable 2 pairs of non-layback of the heart and the eccentric two kinds of form of structure of layback is, first the length of the first telescopic oil cylinder 3 and telescoping mechanism 4 is adjusted, expansion jib 1 and drive link 5 are rotated around the first pin joint 51, the second pin joint 52 is made to be positioned at (as shown in Figure 2) on the centre of gyration line 6 of turntable 2, turntable 2 is now to the non-layback structure of the heart, the turntable 2 of this structure is stressed more even, larger active force can be born, reduce the potential safety hazard such as cracking and bolt fracture caused because of turntable 2 unbalance stress, when needs draw jib 1 in, shrink the first telescopic oil cylinder 3, and drive telescoping mechanism 4, connecting rod 5 is rotated around the first pin joint 51, second pin joint 52 slowly can depart from the centre of gyration line 6 of turntable 2, headstock direction towards concrete mixer is moved (as shown in Figure 3), turntable 2 is now layback eccentric structure, because jib 1 is now in rounding state, therefore do not need to bear too large active force, again because headstock direction has been partial to by jib 1 and the pin joint (i.e. the second pin joint 52) of connecting rod 5, make the arrangement space of jib 1 on chassis larger, thus be conducive to realizing jib 1 greatly enhance bridge ratio, extend the layout length of jib 1 on chassis.
Concrete, this telescoping mechanism 4 can have multiple way of realization, can be preferably the second telescopic oil cylinder or rack-and-pinion; For the second telescopic oil cylinder, one end of second telescopic oil cylinder is hinged on turntable 2, the other end is hinged on connecting rod 5, like this, to launch or in the process of drawing at jib 1, second telescopic oil cylinder partly can bear the active force of the first telescopic oil cylinder 3, therefore can reduce cylinder diameter size and the stroke of the first telescopic oil cylinder 3 accordingly, the space-saving layout being simultaneously conducive to jib 1 system.In addition, the first pin joint 51 and turntable 2, second pin joint 52, with the two ends of jib 1, second telescopic oil cylinder and between connecting rod 5 and turntable 2, can be undertaken hinged by bearing pin in whole or in part.
It should be noted that, connecting rod 5 can have various shape, the such as linkage of three hole connecting rods or many holes connecting rod assemblies, as shown in Figure 7, connecting rod 5 can be preferably the one of the connecting rod 5(tri-hole connecting rod of triangular structure), the connecting rod 5 of this triangular structure has three angles, and the first pin joint 51, second pin joint 52 and the 3rd pin joint 53 are separately positioned on above-mentioned three angles.Due to the deadweight of jib 1 and the weight of material conveying, cause connecting rod 5 will bear larger active force, adopt all-in-one-piece three hole bar linkage structures, bulk strength is higher, is conducive to stability and safety that jib 1 launches and draws process in.
In addition, connecting rod 5 between turntable 2 biside plate 21, also can be able to be positioned at outside biside plate 21; When jib 1 is longer, connecting rod 5 needs to bear larger active force, and connecting rod 5, two connecting rods 5 that now can arrange two triangular structures are hinged with two side plates 21 respectively, can better meet the demand that long-armed frame 1 weight is large like this.
In addition, because jib 1 and the pin joint of connecting rod 5 are transportable, and the weight ratio of jib 1 is larger, therefore wild effect may be there is in the expansion and gathering process of jib 1, therefore arc guide groove 7(can be had as shown in Fig. 2, Fig. 3 and Fig. 5 on the side plate 21 of turntable 2), one end hinge of the 3rd pin joint 53 and telescoping mechanism 4, bearing pin coordinates with arc guide groove 7, the bearing of trend of arc guide groove 7 is identical with the movement locus of the 3rd pin joint 53, and namely institute's shape gathering sill 7 is offered along the movement locus of the 3rd pin joint 53; Like this, provide guide effect in the process that arc guide groove 7 can rotate around the first pin joint 51 at connecting rod 5, make the rotation of connecting rod 5 more steady.The rotation amplitude of connecting rod 5 can be controlled by the stroke of telescoping mechanism 4, but in order to the anglec of rotation or the amplitude of control link 5 more easily, the length of arc guide groove 7 can be become equal with the Design of length of the movement locus of the 3rd pin joint 53, make the rotation amplitude of connecting rod 5 be subject to position-limiting action, the change being conducive to the flexible limiting length of telescoping mechanism 4 like this controls; Two end positions of arc guide groove 7 when connecting rod 5 is in two extreme positions, for connecting rod 5 provides certain supporting role, can reduce the stressed of telescoping mechanism 4 accordingly in addition.It should be noted that, can offer arc guide groove 7 along the movement locus of the second pin joint 52 yet, the same with above of action principle, does not repeat them here.
Moreover because the pin joint of jib 1 with connecting rod 5 can move, namely change the connected mode that turntable 2 is traditional with jib 1, jib 1 and turntable 2 are not directly hinged, but are undertaken hinged by connecting rod 5; Like this, connecting rod 5 can be positioned at the bottom of turntable 2 with the pin joint of turntable 2, therefore the height of turntable 2 can design lower than turntable 2 of the prior art, namely the peak of turntable 2 can lower than the extreme higher position (as shown in Figure 4 and Figure 6) of described second pin joint 52, the design feature of traditional turntable 2 can be changed like this, make turntable 2 structure more simple, facilitate processing and manufacturing and cost-saving.
The specific embodiment of the invention additionally provides a kind of concrete mixer, the slew gear that this concrete mixer comprises fixing capstan head and is arranged on fixing capstan head, this concrete mixer also comprises any one jib bindiny mechanism above-mentioned, and the turntable 2 of this jib bindiny mechanism is arranged on slew gear.In above-mentioned jib bindiny mechanism, because the pin joint of jib 1 with connecting rod 5 can move, make the switching that turntable 2 can realize the non-layback of the heart and the eccentric two kinds of form of structure of layback, therefore, this concrete mixer not only can realize greatly enhancing bridge ratio, make the layout of jib 1 more reasonable and practical, can ensure that again turntable 2 is better stressed, reduce potential safety hazard.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a jib bindiny mechanism, comprise the first telescopic oil cylinder (3), turntable (2) and jib (1), the two ends of described first telescopic oil cylinder (3) respectively with described turntable (2) and jib (1) hinged, it is characterized in that, also comprise connecting rod (5) and telescoping mechanism (4), described connecting rod (5) is provided with the first pin joint (51) and the second pin joint (52), described first pin joint (51) is hinged with described turntable (2), and described second pin joint (52) is hinged with described jib (1); One end and the described connecting rod (5) of described telescoping mechanism (4) are hinged, and the other end and the described turntable (2) of described telescoping mechanism (4) are hinged; Described telescoping mechanism (4) rotates around described first pin joint (51) for driving described second pin joint (52); Described connecting rod (5) is also provided with the 3rd pin joint (53), one end of described telescoping mechanism (4) is hinged on described 3rd pin joint (53); The side plate (21) of described turntable (2) has arc guide groove (7); One end hinge of described 3rd pin joint (53) and telescoping mechanism (4), described bearing pin coordinates with described arc guide groove (7), and described arc guide groove (7) is offered along the movement locus of described 3rd pin joint (53); Or, described second pin joint (52) and jib (1) pass through hinge, described bearing pin coordinates with described arc guide groove (7), and described arc guide groove (7) is offered along the movement locus of described second pin joint (52).
2. jib bindiny mechanism according to claim 1, it is characterized in that, described connecting rod (5) is triangular structure, and described first pin joint (51), the second pin joint (52) and the 3rd pin joint (53) lay respectively at three vertex positions of the connecting rod (5) of described triangular structure.
3. jib bindiny mechanism according to claim 1, is characterized in that, described telescoping mechanism (4) is the second telescopic oil cylinder or rack-and-pinion.
4. jib bindiny mechanism according to claim 1, is characterized in that, the length of described arc guide groove (7) is equal with the length of the movement locus of described 3rd pin joint (53).
5. the jib bindiny mechanism according to any one of claim 1-4, is characterized in that, the peak of described turntable (2) is lower than the extreme higher position of described second pin joint (52).
6. the jib bindiny mechanism according to any one of claim 1-4, is characterized in that, described connecting rod (5) is positioned between the biside plate (21) of described turntable (2); Or the quantity of described connecting rod (5) is two, and lay respectively at the outside of the biside plate (21) of described turntable (2); Or the quantity of described connecting rod (5) is one, and is positioned at the outside of side plate described in any one (21).
7. a jib bindiny mechanism, comprise the first telescopic oil cylinder (3), turntable (2) and jib (1), the two ends of described first telescopic oil cylinder (3) respectively with described turntable (2) and jib (1) hinged, it is characterized in that, also comprise connecting rod (5) and telescoping mechanism (4), described connecting rod (5) is provided with the first pin joint (51) and the second pin joint (52), described first pin joint (51) is hinged with described turntable (2), and described second pin joint (52) is hinged with described jib (1); One end and the described connecting rod (5) of described telescoping mechanism (4) are hinged, and the other end and the described turntable (2) of described telescoping mechanism (4) are hinged; Described telescoping mechanism (4) rotates around described first pin joint (51) for driving described second pin joint (52); The side plate (21) of described turntable (2) has arc guide groove (7), described second pin joint (52) and jib (1) pass through hinge, described bearing pin coordinates with described arc guide groove (7), and described arc guide groove (7) is offered along the movement locus of described second pin joint (52).
8. a concrete mixer, comprise fixing capstan head and be arranged on the slew gear on described fixing capstan head, it is characterized in that, also comprise the jib bindiny mechanism described in any one of claim 1-7, described turntable (2) is arranged on described slew gear.
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| CN201310441230.7A CN103526942B (en) | 2013-09-25 | 2013-09-25 | Concrete mixer and jib bindiny mechanism thereof |
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| CN201310441230.7A CN103526942B (en) | 2013-09-25 | 2013-09-25 | Concrete mixer and jib bindiny mechanism thereof |
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| CN103526942B true CN103526942B (en) | 2016-04-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526942B (en) * | 2013-09-25 | 2016-04-06 | 三一汽车制造有限公司 | Concrete mixer and jib bindiny mechanism thereof |
| CN109025309B (en) * | 2018-11-12 | 2019-01-29 | 上海建工集团股份有限公司 | A kind of concrete spreader, jacking type concrete distributing device and its application method |
| CN114737763B (en) * | 2022-03-15 | 2024-01-19 | 中联重科股份有限公司 | Arm support system, control method and engineering machinery |
| CN115263379A (en) * | 2022-08-16 | 2022-11-01 | 湖南五新隧道智能装备股份有限公司 | Arch grabbing mechanism |
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Denomination of invention: Concrete pump truck and arm frame connecting mechanism thereof Effective date of registration: 20200318 Granted publication date: 20160406 Pledgee: Business Department of Hunan Branch of China Construction Bank Co., Ltd. Pledgor: HUNAN SANY INTELLIGENT CONTROL EQUIPMENT Co.,Ltd. Registration number: Y2020980000821 |
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Date of cancellation: 20211217 Granted publication date: 20160406 Pledgee: Business Department of Hunan Branch of China Construction Bank Co.,Ltd. Pledgor: Sany Automobile Manufacturing Co.,Ltd. Registration number: Y2020980000821 |