CN203755686U - Folding arm frame and concrete pump truck - Google Patents
Folding arm frame and concrete pump truck Download PDFInfo
- Publication number
- CN203755686U CN203755686U CN201320776188.XU CN201320776188U CN203755686U CN 203755686 U CN203755686 U CN 203755686U CN 201320776188 U CN201320776188 U CN 201320776188U CN 203755686 U CN203755686 U CN 203755686U
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- China
- Prior art keywords
- jib
- arm frame
- arm
- arm rack
- foldable arm
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- Expired - Lifetime
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- 230000005484 gravity Effects 0.000 abstract description 9
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses a folding arm frame and a concrete pump truck. The folding arm frame comprises an arm frame I, an arm frame II, an arm frame III, an arm frame IV, an arm frame V, an arm frame VI and an arm frame VII which are sequentially hinged together, wherein the arm frame I, the arm frame II, the arm frame III and the arm frame IV are folded in a Z-shaped form; the arm frame V and the arm frame VI are folded in an R-shaped form; the arm frame I is hinged to a truck body; the arm frame IV is a bent arm. The concrete pump truck comprises the folding arm frame. Compared with the RZ-shaped folding arm frame in the prior art, the folding arm frame provided by the utility model has the advantages that the bent arm is changed into the arm frame IV from the arm frame III, and the front end of the bent arm is changed into three arm frames from two arm frames, so that the total length and the total weight of the arm frames at the front end of the bent arm are increased, the deflection amount of the gravity centers of the left part and the right part of the folding arm frame is reduced, the problem of left and right deflection load of the folding arm frame is solved, the gravity center distribution of the folding arm frame and the overall truck arrangement are benefited, and the happening of a safety accident and property loss are effectively avoided.
Description
Technical field
The utility model relates to concrete mixer technical field, particularly relates to a kind of foldable arm rack and has the concrete mixer of this jib.
Background technology
At present, in long arm rack concrete pump truck, foldable arm rack is generally six joint arms or RZ type foldable arm racks more than six joint arms.Wherein, R type folded form is: the two ends of each jib are all oblique to a lateral deviation, and hinged jib is all folding to a direction; Z-type folded form is: Jun Xiang both sides, the two ends deflection of each jib, hinged jib is all folding round about.
Be illustrated in figure 1 six joint arm RZ type foldable arm racks, wherein, jib 1, jib 2 12 and jib 3 13 are R type folded form, jib 4 14, jib 5 15 and jib 6 16 are Z-type folded form, jib 1 is hinged with vehicle body, be used for supporting whole foldable arm rack, as shown in Figure 2, jib 3 13 is curved boom, when it is applied in foldable arm rack, be bending in the horizontal direction, its effect is that foldable arm rack is divided into left and right two parts in the horizontal direction, in the time that foldable arm rack is folding, left and right two parts of foldable arm rack can fold, be convenient to the folding of foldable arm rack, reduce space shared when foldable arm rack is folding.
In the arrangement of above-mentioned this foldable arm rack, whole foldable arm rack is divided into left and right two parts by jib 3 13, be the jib 1 of jib 3 13 front ends and the jib 4 14 of jib 2 12 and jib 3 13 rear ends, jib 5 15 and jib 6 16, due to jib 3 13 jib 4 14 backward, the length of jib 5 15 and jib 6 16 can be more and more longer, and weight is also more and more heavier, left and right two parts (being front and back two parts of described curved boom) of foldable arm rack can be because jib 4 14, the length of jib 5 15 and jib 6 16 and weight are greater than jib 1, the length of jib 2 12 and jib 3 13 and weight and occur the problem that centre-of gravity shift is larger, the gravity centre distribution of the foldable arm rack of this arrangement to long arm rack concrete pump truck is very unfavorable, foldable arm rack is easy to occur the problem of left and right unbalance loading, quality and the application life of the foldable arm rack of concrete mixer are affected, very easily cause in process of production security incident and property loss.
Utility model content
The purpose of this utility model is to provide a kind of foldable arm rack to overcome or at least alleviates above-mentioned defect of the prior art.
For achieving the above object, the utility model provides a kind of foldable arm rack, comprise hinged successively jib one, jib two, jib three, jib four, jib five, jib six and jib seven, described jib one, jib two, jib three and jib four are Z-type folded form, described jib five and jib six are R type folded form, described jib one is hinged with vehicle body, and described jib four is curved boom.
Preferably, described foldable arm rack is when folding, and the angle between described jib four and jib five is obtuse angle.
Preferably, described jib four is only provided with oil cylinder with the hinged place of jib five, and the hinged place between other each jib is provided with oil cylinder and connecting rod.
Preferably, described jib seven is R type folded form.
Preferably, described jib seven is Z-type folded form.
Preferably, described foldable arm rack also comprises hinged successively jib eight, jib nine and jib ten, and described jib eight, jib nine and jib ten are Z-type folded form, and described jib eight is hinged with jib seven, and described jib seven is curved boom.
Preferably, described jib four is curved boom in the horizontal direction with on vertical direction.
Preferably, the hinged place between each jib is provided with oil cylinder and connecting rod.
The utility model also provides a kind of concrete mixer, and described concrete mixer comprises described foldable arm rack.
The jib one of foldable arm rack of the present utility model, jib two and jib three are Z-type folded form, jib four, jib five, jib six and jib seven are R type folded form, described jib four is curved boom, this foldable arm rack is compared with RZ type foldable arm rack of the prior art, curved boom becomes jib four from jib three, the front end of curved boom becomes three jibs from two jibs, the total length of curved boom front end jib and gross weight increase, reduce the side-play amount of foldable arm rack left and right two parts center of gravity, foldable arm rack left and right load is evenly distributed, solve the problem of foldable arm rack left and right unbalance loading, be conducive to the gravity centre distribution of foldable arm rack and the layout of car load, the generation of security incident and the loss of property are effectively avoided.
Brief description of the drawings
Fig. 1 be prior art RZ type foldable arm rack launch time front view;
Fig. 2 is the top view of the RZ type foldable arm rack of prior art while launching completely;
Fig. 3 be the utility model embodiment 1 foldable arm rack launch time front view;
Fig. 4 is the top view of the foldable arm rack of the utility model embodiment 1 while launching completely;
The front view when foldable arm rack of the utility model embodiment 1 is folding when Fig. 5.
Reference numeral:
| 11 jibs one | 22 | Jib two |
| 12 jibs two | 23 | Jib three |
| 13 jibs three | 24 | Jib four |
| 14 jibs four | 25 | Jib five |
| 15 jibs five | 26 | Jib six |
| 16 jibs six | 27 | Jib seven |
| 21 jibs one |
Detailed description of the invention
For object, technical scheme and advantage that the utility model is implemented are clearer, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, instead of whole embodiment.Be exemplary below by the embodiment being 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 skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of instructions such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of device or the element of instruction 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.
Embodiment 1
As in Figure 3-5, the foldable arm rack of the present embodiment is the ZR type foldable arm rack of seven joint arms, and it comprises hinged jib 1, jib 2 22, jib 3 23, jib 4 24, jib 5 25, jib 6 26 and jib 7 27.
Wherein, jib 1, jib 2 22, jib 3 23 and jib 4 24 are Z-type folded form, and jib 5 25, jib 6 26 and jib 7 27 are R type folded form, and jib 1 is hinged with vehicle body, be used for supporting whole foldable arm rack, as shown in Figure 4, jib 4 24 is curved boom, when it is applied in foldable arm rack, be bending in the horizontal direction, for whole foldable arm rack is divided into left and right two parts, so that foldable arm rack is folding, the outermost end that jib 7 27 is foldable arm rack.
Jib 1 and vehicle body, jib 1 and jib 2 22, jib 2 22 and jib 3 23, jib 3 23 and jib 4 24, jib 5 25 and jib 6 26, hinged place between jib 6 26 and jib 7 27 is equipped with telescopic oil cylinder and connecting rod, described telescopic oil cylinder and jib, described connecting rod and jib, between described telescopic oil cylinder and connecting rod, be also all connected by hinged mode, the expansion and the folding driving force that provides of each jib is provided described telescopic oil cylinder, described connecting rod is used for connecting and supporting each jib and telescopic oil cylinder, just can realize expansion to foldable arm rack and folding control by the cooperation of described telescopic oil cylinder and connecting rod.As shown in Figure 5, hinged place between jib 4 24 and jib 5 25 is only provided with telescopic oil cylinder, can make like this jib 4 24 and the hinged place of jib 5 25 there is larger arrangement space, in the time that foldable arm rack is folding, angle between jib 4 24 and jib 5 25 is obtuse angle, can make like this folding more reasonable of foldable arm rack, facilitate the layout of car load.Certainly, also jib 4 24 and jib 5 25 can be fixed together, or, jib 4 24 and jib 5 25 are arranged to a jib, described jib is curved boom in the horizontal direction with on vertical direction, can simplify like this structure of foldable arm rack, facilitate the folding of foldable arm rack, but when foldable arm rack is organized work, the scope of its expansion will be affected, be not so good as the mutually hinged connected mode of jib 4 24 and jib 5 25 flexible, so, those skilled in the art should select suitable foldable jib structure according to actual needs, to reach optimal effect.
The ZR type foldable arm rack of the present embodiment, it is divided into left and right two parts by curved boom jib 4 24 by whole jib, be jib 1, jib 2 22 and the jib 3 23 of jib 4 24 front ends and jib 5 25, jib 6 26 and the jib 7 27 of jib 4 24 rear ends, when foldable arm rack is folding, three jibs of jib 4 24 and jib 4 24 front ends are Z-type folded form, and three jibs of jib 4 24 rear ends are R type folded form.
The foldable arm rack of this ZR type of the present embodiment is compared with RZ type foldable arm rack of the prior art, curved boom becomes jib four from jib three, the front end of curved boom becomes three jibs from two jibs, the total length of curved boom front end jib and gross weight increase, reduce the side-play amount of foldable arm rack left and right two parts center of gravity, foldable arm rack left and right load is evenly distributed, solve the problem of foldable arm rack left and right unbalance loading, be conducive to the gravity centre distribution of foldable arm rack and the layout of car load, effectively avoided the generation of security incident and the loss of property.
Embodiment 2
The foldable arm rack of the present embodiment is the ZRZ type foldable arm rack of seven joint arms, its the first six joint arm is identical with the foldable jib structure of embodiment 1, its difference is that jib seven is for Z-type folded form, and foldable arm rack is in folding, and jib seven also can be positioned at the top of jib six.
Those skilled in the art should select according to actual arrangement space situation the jib seven of suitable folded form, to reach rational arrangement effect.
Embodiment 3
The foldable arm rack ten of the present embodiment saves the ZRZ type foldable arm rack of arm, its the first seven joint jib is identical with the foldable jib structure of embodiment 1 or embodiment 2, its difference is that jib seven is for curved boom, when described jib seven is applied in foldable arm rack, be bending in the horizontal direction, because foldable arm rack length is oversize, needing jib seven is also curved boom, so that foldable arm rack is folding, described jib eight, jib nine and jib nine are Z-type folded form, the outermost end that jib ten is foldable arm rack.
The foldable arm rack of the present embodiment is divided into left, center, right three parts by jib four and jib seven, and foldable arm rack has more joint arm, and length is longer, but compared with embodiment 1, its gravity centre distribution may be relatively inhomogeneous, structure is relative complex also, and the difficulty of arrangement is larger.
So those skilled in the art should reasonably select according to actual conditions joint arm number and the folded form of foldable arm rack.
The utility model also comprises a kind of concrete mixer, and described concrete mixer comprises described foldable arm rack.
Finally it is to be noted: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit.Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the each embodiment technical scheme of the utility model.
Claims (9)
1. a foldable arm rack, it is characterized in that, comprise hinged successively jib one, jib two, jib three, jib four, jib five, jib six and jib seven, described jib one, jib two, jib three and jib four are Z-type folded form, described jib five and jib six are R type folded form, described jib one is hinged with vehicle body, and described jib four is curved boom.
2. foldable arm rack as claimed in claim 1, is characterized in that, described foldable arm rack is when folding, and the angle between described jib four and jib five is obtuse angle.
3. foldable arm rack as claimed in claim 2, is characterized in that, described jib four is only provided with oil cylinder with the hinged place of jib five, and the hinged place between other each jib is provided with oil cylinder and connecting rod.
4. foldable arm rack as claimed in claim 3, is characterized in that, described jib seven is R type folded form.
5. foldable arm rack as claimed in claim 3, is characterized in that, described jib seven is Z-type folded form.
6. the foldable arm rack as described in claim 4 or 5, it is characterized in that, described foldable arm rack also comprises hinged successively jib eight, jib nine and jib ten, described jib eight, jib nine and jib ten are Z-type folded form, described jib eight is hinged with jib seven, and described jib seven is curved boom.
7. foldable arm rack as claimed in claim 1, is characterized in that, described jib four is curved boom in the horizontal direction with on vertical direction.
8. foldable arm rack as claimed in claim 7, is characterized in that, the hinged place between each jib is provided with oil cylinder and connecting rod.
9. a concrete mixer, is characterized in that, comprises the foldable arm rack described in any one in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320776188.XU CN203755686U (en) | 2014-05-14 | 2014-05-14 | Folding arm frame and concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320776188.XU CN203755686U (en) | 2014-05-14 | 2014-05-14 | Folding arm frame and concrete pump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203755686U true CN203755686U (en) | 2014-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320776188.XU Expired - Lifetime CN203755686U (en) | 2014-05-14 | 2014-05-14 | Folding arm frame and concrete pump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203755686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022205639A1 (en) * | 2021-03-31 | 2022-10-06 | 三一汽车制造有限公司 | Boom apparatus and engineering machine |
-
2014
- 2014-05-14 CN CN201320776188.XU patent/CN203755686U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022205639A1 (en) * | 2021-03-31 | 2022-10-06 | 三一汽车制造有限公司 | Boom apparatus and engineering machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201009 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. |