CN202176115U - Foldable boom, foldable boom device and concrete pump truck - Google Patents
Foldable boom, foldable boom device and concrete pump truck Download PDFInfo
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- CN202176115U CN202176115U CN2011201992129U CN201120199212U CN202176115U CN 202176115 U CN202176115 U CN 202176115U CN 2011201992129 U CN2011201992129 U CN 2011201992129U CN 201120199212 U CN201120199212 U CN 201120199212U CN 202176115 U CN202176115 U CN 202176115U
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- jib
- articulated boom
- rotating shaft
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Abstract
The utility model discloses a foldable boom, comprising a first boom and a second boom, a rack, a driver installed on the first boom and connected with the rack, for driving the rack to translate back and forth, a rotary shaft with both ends pivotally installed on the first boom, and a gear installed on the rotary shaft and engaged with the rack, for being driven by the rack to rotate back and forth, wherein the second boom is connected with the rotary shaft, for being driven by the rotary shaft to swing back and forth. The foldable boom disclosed by the utility model is simple in structure, light in weight, reduced in boom stress, low in matching demand, easy to process, and without interference problem caused by production error. The utility model further discloses a foldable boom device and a concrete pump truck with the same.
Description
Technical field
The utility model relates to engineering machinery field, the articulated boom device and the concrete mixer that particularly relate to a kind of articulated boom and have this articulated boom.
Background technology
Along with the lasting steady development of global economy, the quickening of especially domestic urbanization pace of construction is for the development of concrete pumping machinery provides excellent opportunity.Under this environment, the rapid technological improvement of concrete mixer, product is gradually improved.At present, longer cloth jib is one of concrete mixer main development tendency.For make jib open that the space is lower, topology layout is compacter, the jib of concrete mixer adopts car load folding modes such as Z-shaped, R shape, RZ shape, M shape.These folding modes can be summed up as two big types again, are promptly just rolling over and reflexed.
In the prior art, the reflexed form is adopted in the connection between two jibs more.General arm support link generally is hinged on interlinking lever end on the jib, below describes.Participate in accompanying drawing 1, this figure is the structure chart of an existing arm support link.Arm support link as shown in Figure 1; Form with corresponding bearing pin by hydraulic cylinder 1 ', first jib 2 ', second jib 3 ', first connecting rod 4 ', second connecting rod 5 '; Wherein: first connecting rod 4 ' is generally three hole connecting rods; Second connecting rod 5 ' is generally two hole connecting rods, makes that first jib 2 ' and second jib 3 ' are hinged, and developping solution cylinder pressure 1 ', first connecting rod 4 ', second connecting rod 5 ' are all in the outside of jib.Particularly, first end of hydraulic cylinder 1 ' and the hydraulic cylinder seat on first jib 2 ' is hinged and middle part second end and first connecting rod 4 ' is hinged; Simultaneously, first end of first connecting rod 4 ' and first jib 2 ' is hinged and first end second end and second connecting rod 5 ' is hinged, second end of second connecting rod 5 ' and second jib 3 ' are hinged.Thus, realize the expansion and the withdrawal of jib along with stretching of hydraulic cylinder 1 '.
Action is received in the exhibition of above-mentioned pumping vehicle arm rack, leans on hydraulic cylinder 1 ' that power is provided, and ' 1 promotes connecting rod through hydraulic cylinder, opens up receipts thereby promote jib.But because of its complex structure and compactness, jib stress increases, and is fragile.In addition between hydraulic cylinder 1 ' and connecting rod and connecting rod cooperates with jib bearing pin place and requires height, be difficult to realize designing requirement because of the influence of mismachining tolerance after causing assembling in the manufacture process.
The utility model content
The utility model is intended to one of solve the problems of the technologies described above at least.
For this reason, a purpose of the utility model is to propose a kind of simple in structure, and jib stress reduces, and cooperation requires low, is prone to the articulated boom of processing.
Another purpose of the utility model is to propose a kind of articulated boom device.
Another purpose of the utility model is to propose a kind of concrete mixer with above-mentioned articulated boom.
Articulated boom according to the utility model embodiment comprises: first and second jibs; Tooth bar; Driver, said driver are installed on said first jib and link to each other to drive the reciprocal translation of said tooth bar with said tooth bar; Rotating shaft, the two ends of said rotating shaft are pivotably mounted on said first jib; Gear, said gear are installed in the said rotating shaft and with said tooth bar and mesh back and forth to be rotated by said rack drives, and wherein said second jib links to each other with said rotating shaft with the reciprocally swinging by said rotating shaft driving.
Articulated boom according to the utility model; Provide power to drive said gear and back and forth rotate by said driver to drive the reciprocal translation of said tooth bar; Thereby make said second jib do reciprocally swinging, and can control the exhibition receipts amplitude of said second jib through the stroke of controlling said tooth bar.Thus, can make according to the articulated boom of the utility model simple in structurely, in light weight, jib stress reduces, and cooperates to require lowly, is prone to processing, can not produce because of making the interference problem that error causes.
In addition, can also have following additional technical characterictic according to the collapsible of the utility model the foregoing description:
Said driver is a cylinder.
Said driver is linear electric motors.
Said driver is a hydraulic cylinder.
The piston rod welding of said tooth bar and said hydraulic cylinder.
The piston rod of said tooth bar and said hydraulic cylinder is integrally formed.
Said hydraulic cylinder is through being bolted on said first jib.
Said second jib and said rotating shaft are through being weldingly connected.
Said second jib is provided with connecting hole, and said rotating shaft is passed connecting hole and cooperated with said connecting hole key.
Said gear cooperates with said rotating shaft key.
Another purpose of the utility model is to propose a kind of articulated boom device; Comprise at least two articulated booms; Wherein said articulated boom is according to the described articulated boom of the foregoing description; And in adjacent two articulated booms, second jib of an articulated boom and first jib of another articulated boom are same jib.
A purpose again of the utility model is to propose a kind of concrete mixer, comprises the described articulated boom of the foregoing description.
Additional aspect of the utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the practice of the utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the sketch map of a kind of arm support link in the prior art;
Fig. 2 is the sketch map according to the articulated boom of an embodiment of the utility model;
Fig. 3 is the sketch map according to the articulated boom of another embodiment of the utility model; With
Fig. 4 is the sketch map of the articulated boom of an embodiment again according to the utility model.
The specific embodiment
Describe the embodiment of the utility model below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the utility model, and can not be interpreted as restriction the utility model.
In the description of the utility model; It will be appreciated that; The orientation of indications such as term " " center ", " vertically ", " laterally ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " or position relation are for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the utility model; rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction to the utility model.
In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In the description of the utility model, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected, connect integratedly, also can be to removably connect; Can be mechanical connection or electrical connection, also can be the connection of two element internals; Can be directly to link to each other, also can link to each other indirectly, for those of ordinary skill in the art, can understand the concrete implication of above-mentioned term as the case may be through intermediary.
Articulated boom according to the utility model is described with reference to the drawings below.
Shown in Fig. 2-4, the articulated boom 10 according to the embodiment of the utility model comprises first jib 1; Second jib 2; Tooth bar 3; Driver 4, rotating shaft 5, gear 6.
The two ends of rotating shaft 5 are pivotably mounted on first jib 1.
Gear 6 is installed in the rotating shaft 5 and with tooth bar 3 engagements and rotates to be driven back and forth by tooth bar 3, and wherein second jib 2 links to each other with rotating shaft 5 to be driven and reciprocally swinging by rotating shaft 5.
Articulated boom 10 according to the utility model; Provide power to come driven gear 6 back and forth to rotate by driver 4 to drive tooth bar 3 reciprocal translations; Thereby make second jib 2 do reciprocally swinging, and can control the exhibition receipts amplitude of second jib 2 through the stroke of control tooth bar 3.Thus, can make according to the articulated boom 10 of the utility model simple in structurely, in light weight, jib stress reduces, and cooperates to require lowly, is prone to processing, can not produce because of making the interference problem that error causes.
Advantageously, according to an embodiment of the utility model, driver 4 is a cylinder.
Alternatively, according to some embodiment of the utility model, driver 4 is linear electric motors.
Advantageously, according to the example of the utility model, driver 4 is a hydraulic cylinder.
Further, according to an embodiment of the utility model, shown in Fig. 2-3, tooth bar 3 welds with the piston rod 41 of said hydraulic cylinder.Thus, can make the installation of tooth bar 3 more easy.
Alternatively, according to a concrete example of the utility model, tooth bar 3 is integrally formed with piston rod 41.Thus, can make tooth bar 3 be prone to process and guaranteed the mechanical strength of tooth bar 3.
According to some embodiment of the utility model, said hydraulic cylinder is through being bolted on first jib 1.Thus, can make the installation of said hydraulic cylinder more easy.
As shown in Figure 4, according to the example of the utility model, second jib 2 and rotating shaft 5 are through being weldingly connected.Alternatively, second jib 2 is provided with connecting hole, and rotating shaft 5 is passed said connecting hole and cooperated with said connecting hole key.Thus, can make second jib 2 more easy with the installation of rotating shaft 5.
According to some examples of the utility model, gear 6 cooperates with rotating shaft 5 keys.Thus, can make gear 6 more easy with the installation of rotating shaft 5.
Articulated boom device according to the embodiment of the utility model; Comprise at least two articulated booms; Wherein articulated boom is according to the described articulated boom 10 of the foregoing description; And in adjacent two articulated booms 10, second jib 2 of an articulated boom 10 is same jib with first jib 1 of another articulated boom 10.
Thus, can make according to the articulated boom apparatus structure of the utility model simply, in light weight, jib stress reduces, and cooperates to require lowly, is prone to processing, can not produce because of making the interference problem that error causes.
Concrete mixer according to the embodiment of the utility model comprises the described articulated boom 10 of the foregoing description.Thus, can make according to the articulated boom 10 of the concrete mixer of the utility model simple in structurely, in light weight, jib stress reduces, and cooperates to require lowly, is prone to processing, can not produce because of making the interference problem that error causes.
According to the articulated boom 10 of the utility model the foregoing description, adopt hydraulic cylinder 4 as driving mechanism, utilize tooth bar 3 driven wheels 6 to rotate and then drive second jib 2 and realize the action of exhibition receipts; Replaced original linkage, can make according to the articulated boom 10 of the utility model simple in structure, in light weight; Jib stress reduces; Cooperation requires low, is prone to processing, can not produce because of making the interference problem that error causes.
In the description of this manual, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained among at least one embodiment or example of the utility model.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described the embodiment of the utility model; Those having ordinary skill in the art will appreciate that: under the situation of principle that does not break away from the utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, the scope of the utility model is limited claim and equivalent thereof.
Claims (12)
1. an articulated boom is characterized in that, comprising:
First and second jibs;
Tooth bar;
Driver, said driver are installed on said first jib and link to each other to drive the reciprocal translation of said tooth bar with said tooth bar;
Rotating shaft, the two ends of said rotating shaft are pivotably mounted on said first jib;
Gear, said gear are installed in the said rotating shaft and with said tooth bar and mesh back and forth to be rotated by said rack drives, and wherein said second jib links to each other with said rotating shaft with the reciprocally swinging by said rotating shaft driving.
2. articulated boom according to claim 1 is characterized in that, said driver is a cylinder.
3. articulated boom according to claim 1 is characterized in that, said driver is linear electric motors.
4. articulated boom according to claim 1 is characterized in that, said driver is a hydraulic cylinder.
5. articulated boom according to claim 4 is characterized in that, the piston rod welding of said tooth bar and said hydraulic cylinder.
6. articulated boom according to claim 5 is characterized in that the piston rod of said tooth bar and said hydraulic cylinder is integrally formed.
7. articulated boom according to claim 4 is characterized in that, said hydraulic cylinder is through being bolted on said first jib.
8. articulated boom according to claim 1 is characterized in that, said second jib and said rotating shaft are through being weldingly connected.
9. articulated boom according to claim 1 is characterized in that, said second jib is provided with connecting hole, and said rotating shaft is passed connecting hole and cooperated with said connecting hole key.
10. articulated boom according to claim 1 is characterized in that, said gear cooperates with said rotating shaft key.
11. articulated boom device; It is characterized in that; Comprise at least two articulated booms; Wherein said articulated boom is according to each described articulated boom among the claim 1-10, and in adjacent two articulated booms, second jib of an articulated boom and first jib of another articulated boom are same jib.
12. a concrete mixer is characterized in that, comprises according to each described articulated boom among the claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201992129U CN202176115U (en) | 2011-06-13 | 2011-06-13 | Foldable boom, foldable boom device and concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201992129U CN202176115U (en) | 2011-06-13 | 2011-06-13 | Foldable boom, foldable boom device and concrete pump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176115U true CN202176115U (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201992129U Expired - Fee Related CN202176115U (en) | 2011-06-13 | 2011-06-13 | Foldable boom, foldable boom device and concrete pump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176115U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704689A (en) * | 2012-06-18 | 2012-10-03 | 三一重工股份有限公司 | Cantilever crane device and engineering machinery |
| CN103556834A (en) * | 2013-10-24 | 2014-02-05 | 中联重科股份有限公司 | Arm support, engineering machinery and arm support interference maintenance method |
| WO2021129973A1 (en) * | 2019-12-23 | 2021-07-01 | Putzmeister Engineering Gmbh | Rotary drive for pivoting two boom arms which are connected together in an articulated manner |
-
2011
- 2011-06-13 CN CN2011201992129U patent/CN202176115U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704689A (en) * | 2012-06-18 | 2012-10-03 | 三一重工股份有限公司 | Cantilever crane device and engineering machinery |
| CN102704689B (en) * | 2012-06-18 | 2014-10-15 | 三一汽车制造有限公司 | Cantilever crane device and engineering machinery |
| CN103556834A (en) * | 2013-10-24 | 2014-02-05 | 中联重科股份有限公司 | Arm support, engineering machinery and arm support interference maintenance method |
| WO2021129973A1 (en) * | 2019-12-23 | 2021-07-01 | Putzmeister Engineering Gmbh | Rotary drive for pivoting two boom arms which are connected together in an articulated manner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20170613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |