CN103352572A - Arm rest of concrete pump truck and concrete pump truck - Google Patents
Arm rest of concrete pump truck and concrete pump truck Download PDFInfo
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- CN103352572A CN103352572A CN2013103311807A CN201310331180A CN103352572A CN 103352572 A CN103352572 A CN 103352572A CN 2013103311807 A CN2013103311807 A CN 2013103311807A CN 201310331180 A CN201310331180 A CN 201310331180A CN 103352572 A CN103352572 A CN 103352572A
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- jib
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- joint
- lower cover
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Abstract
The invention relates to an arm rest of a concrete pump truck and the concrete pump truck. The arm rest comprises an arm head, a connection piece and an arm joint, wherein the arm head is connected with the arm joint through the connection piece; the arm joint comprises a first left side plate, a first right side plate and a first lower cover plate; a triangular box body is formed by mutually connecting the butt joint parts of the first left side plate, the first right side plate and the first lower cover plate. According to the arm rest disclosed by the invention, the whole strength of the arm rest is guaranteed while the weight is reduced.
Description
Technical field
The present invention relates to engineering machinery field, the concrete mixer that is specifically related to a kind of jib of concrete mixer and has this jib.
Background technology
Concrete mixer is a kind of engineering machinery that commercial concrete is transported to assigned address.Be provided with the boom system in the concrete mixer.The boom system is mainly used in concrete conveying and cloth, and the boom system is flexible by arm support oil cylinder, turntable rotates, and via the carrier pipe that is attached on the jib, directly sending to arm support tail end indication position is pour point with concrete.Carrier pipe on jib, is used for transmission concrete or other liquid by the support rigid connection.
As shown in Figure 1, existing concrete pump truck boom system partly is comprised of more piece jib 22 and connecting rod 14 and oil cylinder 15, carrier pipe 24, end flexible pipe 117 etc., and the revolution between the jib is finished by the axle sleeve of connection place.Each saves jib and is box-structure, is formed by the Plate Welding of different thicknesss of slab.Each saves jib by connecting rod 14 and bearing pin 13, oil cylinder 15 chain connections, and connecting rod can be realized relatively rotating of jib with the quadric chain of jib formation under the driving of oil cylinder.
Its function mainly contains three parts:
1. obtain certain cloth material space by interconnecting, supporting between jib and the jib;
2. elephant trunk is attached on the jib by connection bracket, and jib plays the effect of supporting with fixing to elephant trunk;
3. realize mutual motion between the joint arm by the jib lubbing mechanism (use amplitude oil cylinder) of joint between arm, realize packing up and launching of jib with the form of bionic machine hand.
As shown in Figure 2, in existing concrete pump truck boom system, adopt the bearing pin articulated manner between the adjacent jib 22.Carrier pipe 24 is fixed on the jib 22 by connecting rack 23.Dotted line represents between the adjacent jib 22 and the rotation between the adjacent carrier pipe 24 among Fig. 2.The same articulated manner that adopts between the adjacent carrier pipe 24, and share same rotation with jib is hinged.The carrier pipe articulated structure adopts two 90 ° of bend pipes 25 to realize.The effect of pipe clamp 26 is to connect adjacent two-section carrier pipe, and does not limit it and rotate along pipe clamp 26 axis.Like this, realize mutual motion between the joint arm by the jib lubbing mechanism between the jib 22, realize packing up and launching of jib with the form of bionic machine hand.Simultaneously, the carrier pipe that is fixed thereon is also packed up synchronously thereupon and is launched.
Shown in Fig. 3,4, the arm of jib 22 joint 21 is the quadrangle casing, and arm joint 21 forms the main tension of upper cover plate, the main pressurized of lower cover by upper cover plate, lower cover, left side plate welding.
There is following shortcoming at least in the jib of existing concrete pump truck boom system:
1, the jib casing is that upper cover plate, lower cover, left side plate welding form by four blocks of plates, and weight is large, and the loss of weight difficulty is large;
2, the quadrangle body structure takes up room greatlyr, is folding shape after traditional boom mechanism packs up, and always taking up room is each jib volume sum.And narrow space between jib and jib easily occurs mutually to interfere;
3, it is larger that jib launches required space, is not suitable for some space-constrained special operation condition;
4, the quadrangle body structure takes up room larger, easily cause each component to interfere during arm support folding, carrier pipe can be little for the space of layout, having caused can be few by the space that miscellaneous part such as carrier pipe etc. utilize, and increased jib weight, increase the jib tilting moment, be unfavorable for the stability of car load.
Summary of the invention
The objective of the invention is to propose a kind of jib and concrete mixer of concrete mixer, jib can guarantee the bulk strength of jib in weight reduction.
For achieving the above object, the invention provides following technical scheme:
A kind of jib of concrete mixer, jib comprises arm head, connector and arm joint, arm head is connected connection by connector with arm, the arm joint comprises the first left plate, the first right plate and the first lower cover, and the joint of the first left plate, the first right plate and the first lower cover is interconnected to form the triangle casing.
At one preferably or alternatively among the embodiment, the joint of the first left plate, the first right plate and the first lower cover interconnects by welding.
The sheet material of the joint of the first left plate and the first lower cover carries out bending to be processed preferably or alternatively among the embodiment at one, and the sheet material of the joint of the first right plate and the first lower cover carries out bending to be processed.
At one preferably or alternatively among the embodiment, carry out after the bending part reason plane at place on the first left plate and the first right plate mutually vertical with the plane at the first lower cover place.
Arm head is quadrangular section preferably or alternatively among the embodiment at one, and the arm joint is the triangular-section, and quadrangular section is connected with the triangular-section by connector.
At one preferably or alternatively among the embodiment, an end of connector is that triangular-section, the other end are quadrangular section, the triangular-section welding of the triangular-section of connector and arm joint, the quadrangular section of connector and the welding of the quadrangular section of arm head.
The present invention also provides following technical scheme:
A kind of concrete mixer, concrete mixer comprise aforesaid jib.
Based on the arbitrary technical scheme in the technique scheme, the embodiment of the invention can produce following technique effect at least:
Because the jib of concrete mixer provided by the present invention, jib comprises arm head, connector and arm joint, arm head is connected connection by connector with arm, the arm joint comprises the first left plate, the first right plate and the first lower cover, the joint of the first left plate, the first right plate and the first lower cover is interconnected to form the triangle casing, cost and technology difficulty had not both been increased, intensity, rigidity and the stability of jib have also been guaranteed, reduce jib weight, realized the light-weight design of concrete pump truck arm.
In addition, at least also there is following advantage in the preferred technical solution of the present invention:
1, significantly reduces jib weight, thereby reduced the jib tilting moment, strengthened whole vehicle stability.The totally four block plates welding of upper and lower cover plates, left side plate need be used in the square-section, and adopt the triangular-section only to need the totally three block plates welding of left side plate, lower cover, for the long jib of a 9.6m, in the situation that guarantee arm head and lower cover same size, can alleviate 280kg(13%) weight.
2, the triangular-section is with respect to the jib of square-section, and its space that takies is low, has left more space for to the layout of other component.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 be between the existing concrete pump truck boom system main member annexation with and the annexation schematic perspective view of Local Members after amplifying;
Fig. 2 is the schematic perspective view of annexation between the jib of existing concrete mixer shown in Figure 1 and the carrier pipe;
Fig. 3 is the schematic diagram of the jib of existing concrete mixer shown in Figure 2;
Fig. 4 be existing concrete mixer shown in Figure 3 jib A-A to sectional drawing;
Fig. 5 is the schematic diagram of the jib of concrete mixer provided by the present invention;
Fig. 6 be concrete mixer provided by the present invention shown in Figure 5 jib A-A to sectional drawing.
Description of reference numerals:
The 13-bearing pin; The 14-connecting rod; The 15-oil cylinder; The 20-arm head; 21-arm joint; The 22-jib; The 23-connecting rack; The 24-carrier pipe; The 25-bend pipe; The 26-pipe clamp; The 27-connector; The 28-bending line; The plane at place after the 29-bending is processed; 30-the first left plate; 31-the first right plate; 32-the first lower cover; 33-the second right plate; 34-the second upper cover plate; 117-end flexible pipe.
The specific embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Need to prove: any technical characterictic in the present embodiment; any technical scheme all is the technical characterictic of plurality of optional or one or more in the optional technical scheme; can't exhaustive all alternative technical characterictics of the present invention and alternative technical scheme in order to describe succinct need in the presents; the embodiment that also is not easy to each technical characterictic emphasizes that all it is one of optional numerous embodiments; so those skilled in the art should know: any technical characterictic and any technical scheme in the present embodiment all do not limit protection scope of the present invention, and protection scope of the present invention should comprise that those skilled in the art do not pay the thinkable any alternate embodiments of creative work.
Hereinafter in order to narrate conveniently, hereinafter alleged " left side ", " right side ", " on ", left and right, the upper and lower of D score and accompanying drawing itself is to consistent.
Shown in Fig. 5,6, a kind of jib 22 of concrete mixer, jib 22 comprises arm head 20, connector 27 and arm joint 21, arm head 20 is connected 21 by connector 27 and connects with arm, arm joint 21 comprises that the joint of the first left plate 30, the first right plate 31 and the first lower cover 32, the first left plates 30, the first right plate 31 and the first lower cover 32 is interconnected to form the triangle casing.
Jib is one of topmost critical component of concrete mixer, its safety, stability and the advanced core competitiveness that has determined concrete mixer.For improving the market competitiveness, the jib light-weight design is a key content of current concrete mixer industry research.Along with commercial competition is more and more fierce, under the existence conditions, for weight reduction, increase jib, satisfy the jib space layout and adapt to various complex working conditions etc., jib designs the increasingly limit.
The arm head at two ends, the jib left and right sides still adopts existing structure, can be with reference to prior art, and this paper no longer launches to describe.
This paper only describes the annexation of an arm head, connector and arm joint in detail, another arm head of explanation is not identical structure with illustrated arm head, another connector of explanation is not identical structure with illustrated connector yet, the connected mode of another arm head, another connector and arm joint is identical with the connected mode of an illustrated arm head, connector and arm joint.
The joint of the first left plate 30, the first right plate 31 and the first lower cover 32 interconnects by welding.
The sheet material of the joint of the first left plate 30 and the first lower cover 32 carries out bending to be processed, the sheet material of the joint of the first right plate 31 and the first lower cover 32 carries out bending to be processed, the joint of the joint of the first left plate 30 and the first lower cover 32, the first right plate 31 and the first lower cover 32 is exactly the position of bending line 28, that is to say that the first left plate 30, the first right plate 31 carry out bending along bending line 28.
Carry out after the bending part reason plane 29 at place on the first left plate 30 and the first right plate 31 mutually vertical with the plane at the first lower cover 32 places, the bending processing can guarantee the stability of amplitude oil cylinder.
One end of connector 27 is that triangular-section, the other end are quadrangular section, the triangular-section welding of the triangular-section of connector 27 and arm joint 21, the quadrangular section welding of the quadrangular section of connector 27 and arm head 20.
The joint of the second left plate, the second right plate, the second upper cover plate and the second lower cover interconnects by welding.
The second left plate, the second right plate, the second upper cover plate and the second lower cover all are that the welding of two blocks of plates forms, and have guaranteed that connector 27 is connected respectively the firm connection of the quadrangular section of 21 triangular-section, arm head 20 with arm.
A kind of concrete mixer, concrete mixer comprise aforesaid jib 22.In the use of reality, concrete mixer can use the single-unit jib, also can be hinged by a plurality of jibs of the present invention front and back end, form the jib of more piece.
The other parts of concrete mixer can be with reference to prior art, and this paper no longer launches to describe.
The disclosed arbitrary technical scheme of the invention described above unless otherwise stated outside, if it discloses number range, so disclosed number range is preferred number range, any it should be appreciated by those skilled in the art: preferred number range only is the apparent in view or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, can't be exhaustive, so just openly part numerical value is illustrating technical scheme of the present invention in the present invention, and the above-mentioned numerical value of enumerating should not consist of the restriction to the invention protection domain.
Simultaneously, if the invention described above discloses or has related to component or the structural member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can be fixedly connected with (for example using bolt or screw to connect) with dismantling, also can be understood as: non-removable being fixedly connected with (for example rivet, weld), certainly, connection fastened to each other also can be replaced by integral type structure (for example use casting technique is integrally formed to be created) (obviously can't adopt except the integrally formed technique).
In addition, in the disclosed arbitrary technical scheme of the invention described above applied term for expression position relationship or shape unless otherwise stated outer its implication comprise and its approximate, similar or approaching state or shape.Arbitrary parts provided by the invention both can be to be assembled by a plurality of independent ingredients, the produced separate part of the technique that also can be one of the forming.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (7)
1. the jib of a concrete mixer, it is characterized in that, described jib comprises arm head, connector and arm joint, described arm head passes through described connector and is connected the connection of arm joint, described arm joint comprises the first left plate, the first right plate and the first lower cover, and the joint of described the first left plate, the first right plate and the first lower cover is interconnected to form the triangle casing.
2. jib according to claim 1 is characterized in that, the joint of described the first left plate, the first right plate and the first lower cover interconnects by welding.
3. jib according to claim 1 and 2 is characterized in that, the sheet material of the joint of described the first left plate and the first lower cover carries out bending to be processed, and the sheet material of the joint of described the first right plate and the first lower cover carries out bending to be processed.
4. jib according to claim 3 is characterized in that, carries out after the bending part reason plane at place on described the first left plate and the first right plate mutually vertical with the plane at the first lower cover place.
5. jib according to claim 1 is characterized in that, arm head is quadrangular section, and the arm joint is the triangular-section, and quadrangular section is connected with the triangular-section by described connector.
6. jib according to claim 5, it is characterized in that, one end of described connector is that triangular-section, the other end are quadrangular section, the triangular-section welding of the triangular-section of described connector and described arm joint, the quadrangular section of described connector and the welding of the quadrangular section of described arm head.
7. a concrete mixer is characterized in that, described concrete mixer comprises each described jib of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103311807A CN103352572A (en) | 2013-08-01 | 2013-08-01 | Arm rest of concrete pump truck and concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103311807A CN103352572A (en) | 2013-08-01 | 2013-08-01 | Arm rest of concrete pump truck and concrete pump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103352572A true CN103352572A (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103311807A Pending CN103352572A (en) | 2013-08-01 | 2013-08-01 | Arm rest of concrete pump truck and concrete pump truck |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621833A (en) * | 2017-05-12 | 2019-12-27 | 普茨迈斯特工程有限责任公司 | Curved boom with variable cross section for mobile concrete pumps |
| CN114413081A (en) * | 2022-01-25 | 2022-04-29 | 三一汽车制造有限公司 | Arm section assembly and operation machine |
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| US3947191A (en) * | 1974-06-25 | 1976-03-30 | Milner Jr Edwin Earl | Lightweight high strength boom construction |
| US6755212B1 (en) * | 2001-02-23 | 2004-06-29 | Schwing America, Inc. | Boom stiffening system |
| US6786233B1 (en) * | 2001-02-23 | 2004-09-07 | Schwing America, Inc. | Boom utilizing composite material construction |
| CN201045235Y (en) * | 2007-05-10 | 2008-04-09 | 韦啟征 | Mobile concrete cloth machine |
| CN201474311U (en) * | 2009-05-31 | 2010-05-19 | 长沙中联重工科技发展股份有限公司 | Concrete distributing arm support |
| EP2364950A1 (en) * | 2010-03-12 | 2011-09-14 | Cifa S.P.A. | Arm to distribute concrete and relative production method |
| EP2248755B1 (en) * | 2009-05-06 | 2012-05-16 | Cifa S.P.A. | Arm made of composite material and respective production method |
| CN102733609A (en) * | 2012-06-26 | 2012-10-17 | 三一重工股份有限公司 | Arm frame, arm frame system and engineering machinery |
| CN203475844U (en) * | 2013-08-01 | 2014-03-12 | 徐州徐工施维英机械有限公司 | Cantilever crane of concrete pump truck and concrete pump truck |
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2013
- 2013-08-01 CN CN2013103311807A patent/CN103352572A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3947191A (en) * | 1974-06-25 | 1976-03-30 | Milner Jr Edwin Earl | Lightweight high strength boom construction |
| US6755212B1 (en) * | 2001-02-23 | 2004-06-29 | Schwing America, Inc. | Boom stiffening system |
| US6786233B1 (en) * | 2001-02-23 | 2004-09-07 | Schwing America, Inc. | Boom utilizing composite material construction |
| CN201045235Y (en) * | 2007-05-10 | 2008-04-09 | 韦啟征 | Mobile concrete cloth machine |
| EP2248755B1 (en) * | 2009-05-06 | 2012-05-16 | Cifa S.P.A. | Arm made of composite material and respective production method |
| CN201474311U (en) * | 2009-05-31 | 2010-05-19 | 长沙中联重工科技发展股份有限公司 | Concrete distributing arm support |
| EP2364950A1 (en) * | 2010-03-12 | 2011-09-14 | Cifa S.P.A. | Arm to distribute concrete and relative production method |
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| CN102733609A (en) * | 2012-06-26 | 2012-10-17 | 三一重工股份有限公司 | Arm frame, arm frame system and engineering machinery |
| CN203475844U (en) * | 2013-08-01 | 2014-03-12 | 徐州徐工施维英机械有限公司 | Cantilever crane of concrete pump truck and concrete pump truck |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621833A (en) * | 2017-05-12 | 2019-12-27 | 普茨迈斯特工程有限责任公司 | Curved boom with variable cross section for mobile concrete pumps |
| CN110621833B (en) * | 2017-05-12 | 2022-05-31 | 普茨迈斯特工程有限责任公司 | Curved boom with variable cross section for mobile concrete pumps |
| US11952788B2 (en) | 2017-05-12 | 2024-04-09 | Putzmeister Engineering Gmbh | Angled boom comprising variable cross-section for mobile concrete pumps |
| CN114413081A (en) * | 2022-01-25 | 2022-04-29 | 三一汽车制造有限公司 | Arm section assembly and operation machine |
| CN114413081B (en) * | 2022-01-25 | 2024-06-11 | 三一汽车制造有限公司 | Arm joint assembly and working machine |
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Application publication date: 20131016 |