CN102561703B - Boom device and concrete pump truck - Google Patents
Boom device and concrete pump truck Download PDFInfo
- Publication number
- CN102561703B CN102561703B CN201210044355.1A CN201210044355A CN102561703B CN 102561703 B CN102561703 B CN 102561703B CN 201210044355 A CN201210044355 A CN 201210044355A CN 102561703 B CN102561703 B CN 102561703B
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- Prior art keywords
- jib
- section
- hinged
- joint
- arm
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/54—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a boom device, which comprises a plurality of boom segments hinged in sequence. The first boom segment is hinged to a rotary table of an engineering machine, the rotary table is disposed in the middle of the engineering machine, the first boom segment is disposed upside down, the second boom segment is hinged to the first boom segment and folded above the first boom segment, and all of from the second boom segment to the final boom segment penetrates through a body of the engineering machine. The rotary table is disposed in the middle of the engineering machine, the first boom segment is disposed upside down and extends towards the tail of the engineering machine or towards a cab of the engineering machine, all of from the second boom segment to the final boom segment can penetrate through the body of the whole engineering machine, namely penetrating from the cab of the engineering machine to the tail thereof lengthwise along the engineering machine, and accordingly, arrangement of an ultra-long boom can be achieved, extension height of the whole boom device is further increased so as to extend the distribution range of the boom device. The invention further provides a concrete pump truck.
Description
Technical field
The present invention relates to concrete pumping technique field, particularly relate to a kind of boom device.The invention still further relates to a kind of concrete mixer with said arm rack device.
Background technology
Along with the fast development of China's economic construction, market increases day by day for the demand of constructional engineering machinery especially concrete mixer.
Jib in concrete mixer is generally more piece, and can fold between each joint jib.In the course of work of concrete mixer, to need by being fixed on carrier pipe on jib by concrete conveyance to assigned address, and along with the change of transfer position, jib need to drive carrier pipe to realize launching, the action such as folding and rotation.
As shown in Figure 1, be a kind of structural representation of typical concrete mixer.The boom device of this concrete mixer comprises turntable 1', first segment jib 21', second section jib 22', Section of three jib 23', Section of four jib 24'; Wherein, turntable 1' is installed on the chassis of concrete mixer by pivoting support, turntable 1' can rotate relative to chassis, first segment jib 21' is articulated with on turntable 1', and above-mentioned each joint jib is hinged successively, arrange between adjacent two jibs and drive oil cylinder to rotate to drive adjacent two jibs, thus realize opening and folding of jib.
With reference to Fig. 1, turntable 1' is generally arranged in the position of chassis near driver's cabin, also be the front portion on chassis, first segment jib 21' and turntable 1' is hinged and afterbody to concrete mixer is folding, between turntable 1' and first segment jib 21', the first arm support oil cylinder 3' is set, the two ends of the first arm support oil cylinder 3' respectively with turntable 1', 21' is hinged for first segment jib, and first segment jib 21' just puts, namely the hinge axes A of first segment jib 21' and turntable 1' is higher than the hinge axes B of the first arm support oil cylinder 21' and turntable 1', under boom device is in folded state, first arm support oil cylinder 3' stretches out to promote first segment jib 21' and carries out expansion action.
According to R type, Z-type or RZ type folding mode that boom device is conventional, under boom device is in folded state, above-mentioned second section jib 22', Section of three jib 23', Section of four jib 24' are generally arranged in the arrangement space of the below of first segment jib 21', and the length of second section jib 22', Section of three jib 23' and the 4th section jib 24' is generally also less than the length of first segment jib 21'.Therefore, in this kind of jib arrangement form, the length of each joint jib is limited to, and in order to the length of run of arms rack device, needs the joint number increasing jib; But because the arrangement space below first segment jib 21' is limited, accelerating of jib joint number is limited.
Under the development trend of current concrete mixer to super high pump-conveying height, ultra-wide cloth scope, jib arrangement form of the prior art can not meet the layout of overlength jib.Therefore, how to improve the folding mode of boom device, for overlength jib provides arrangement space, improve the cloth scope of whole boom device, become the technical barrier that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
Based on the technical scheme that first segment jib in background technology is just being put, in the boom device that the present invention proposes, first segment jib is inverted, and namely the pin joint of first segment jib and turntable is lower than the pin joint of the first arm support oil cylinder and turntable.Accordingly, first object of the present invention is to provide a kind of boom device, can realize the layout of overlength jib, and then improves the cloth scope of whole boom device.Second object of the present invention is to provide a kind of concrete mixer with said arm rack device.
In order to realize above-mentioned first object, the invention provides a kind of boom device, for engineering machinery, comprise more piece jib hinged successively, the turntable of first segment jib and engineering machinery is hinged, turntable is positioned at the middle part of engineering machinery, and first segment jib is inverted, second section jib and first segment jib hinged and be folded to the top of first segment jib; Second section jib all runs through the car body of engineering machinery to most minor details jib;
At least one joint jib saves hinged forming by least two arms, is hinged with telescopic oil cylinder between adjacent two arms joint; Or at least one joint jib saves dismantled and assembled being formed by connecting by least two arms;
Described boom device at least comprises hinged four joint jibs successively, and wherein, Section of three jib is the jib that turns round, and it comprises the first straight arm section, turning section and the second straight arm section, the first straight arm section and second section jib hinged and be folded to the below of second section jib; Section four, jib and the second straight arm section hinged and be folded to the top of the second straight arm section; First segment jib and Section of three jib are located in the same horizontal plane.
Preferably, first segment jib saves hinged forming by two arms, and is hinged with telescopic oil cylinder between two arm joints.
Preferably, Section of three jib saves dismantled and assembled being formed by connecting by two arms, and the dismantled and assembled link position of two arm joints is located at the second straight arm section.
Preferably, second section jib, Section of three jib and Section of four jib include two arm joints.
Preferably, described boom device at least comprises hinged five joint jibs successively, Section of five jib and Section of four jib hinged and be folded to the top of Section of four jib.
Preferably, Section of five jib is most minor details jib, and Section of five jib comprises three arms joints: front end arms joint, middle part arm joint and tail end arm joint;
Front end arms joint saves dismantled and assembled being formed by connecting with middle part arm; Middle part arm joint and tail end arm save hinged forming, and are hinged with telescopic oil cylinder between these two arms joints; Or three arms save hinged successively forming, and be hinged with telescopic oil cylinder between adjacent two arms joint.
Preferably, first segment jib extends to the driver's cabin of engineering machinery, or extends to the afterbody of engineering machinery.
Boom device provided by the invention comprises more piece jib hinged successively, the turntable of first segment jib and engineering machinery is hinged, turntable is positioned at the middle part of engineering machinery, and first segment jib is inverted, second section jib and first segment jib hinged and be folded to the top of first segment jib; Second section jib all runs through the car body of engineering machinery to most minor details jib.Turntable is arranged on the middle part of engineering machinery, first segment jib is inverted and is extended to the afterbody of engineering machinery or driver's cabin direction, like this, second section jib just can run through the car body of whole engineering machinery to most minor details jib, namely the length direction along engineering machinery is through to its afterbody from the driver's cabin of engineering machinery, thus the layout of overlength jib can be realized, improve the expansion height of whole boom device further to expand its cloth scope.
In addition, such scheme jib longer for single-unit is blocked be two joints shorter above arm joint, galianconism joint is convenient to carry out processing and fabricating, transport, dismounting, assembly manipulation in jib manufacturing process, and relative to single-unit overlength jib in cloth process, more piece galianconism joint can increase the flexibility of jib cloth, expands the cloth scope of boom device.
In order to realize above-mentioned second object, present invention also offers a kind of concrete mixer, this concrete mixer has above-mentioned boom device.Because above-mentioned boom device has above-mentioned technique effect, the concrete mixer with this boom device also should have corresponding technique effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of typical concrete mixer in prior art;
The structural representation of the boom device that Fig. 2 provides for a kind of detailed description of the invention of the present invention;
Fig. 3 is the structural representation that Fig. 2 intermediate station and first segment jib are arranged;
Fig. 4 is the structural representation that in Fig. 3, first segment jib and second section jib are arranged;
Fig. 5 is second section jib and Section of three structural representation that jib is arranged in Fig. 3;
Fig. 6 is Section of three jib and Section of four structural representation that jib is arranged in Fig. 3;
Fig. 7 is the structural representation that in Fig. 3, Section of four jib, Section of five jib, Section of six jib are arranged;
Fig. 8 is the structural representation of dismantled and assembled connection in the present invention;
Fig. 9 is the enlarged drawing at A place in Fig. 8;
The structural representation of the boom device that Figure 10 provides for the another kind of detailed description of the invention of the present invention;
Figure 11 is the structural representation that turntable in Fig. 8 and first segment jib are arranged;
Wherein, in Fig. 1-Figure 11:
Turntable 1 ', first segment jib 21', second section jib 22', Section of three jib 23', Section of four jib 24', the first arm support oil cylinder 3';
First segment jib 11, first arm joint 111, second arm joint 112, telescopic oil cylinder 113, second section jib 12, the 3rd arm joint the 121, the 4th arm joint Section of 122, three jib 13, the 5th arm joint the 131, the 6th arm joint 132, bearing pin 133, junction plate 134, bolt 135, Section of four jib 14, the 7th arm joint the 141, the 8th arm joint Section of 142, five jib 15, front end arms joint 151, middle part arm joint 152, rear end arms joint 153, turntable 2, first arm support oil cylinder 3.
Detailed description of the invention
In order to make those skilled in the art better understand technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 2, Fig. 3, Fig. 4, the structural representation of the boom device that Fig. 2 provides for a kind of detailed description of the invention of the present invention; Fig. 3 is the structural representation that Fig. 2 intermediate station and first segment jib are arranged; Fig. 4 is the structural representation that in Fig. 3, first segment jib and second section jib are arranged.
As shown in Figure 2, Figure 3, Figure 4, the invention provides a kind of boom device, for engineering machinery, this boom device comprises more piece jib hinged successively, turntable 2 to be arranged on chassis and to be positioned at the middle part of engineering machinery, and root and the turntable 2 of first segment jib 11 are hinged; The first arm support oil cylinder 3 is provided with between first segment jib 11 and turntable 2, the pin joint of first segment jib 11 and turntable 2 is lower than the pin joint of the first arm support oil cylinder 3 with turntable 2, namely first segment jib 11 is inverted, like this, normal cloth is carried out after first segment jib 11 can being driven under the effect of the first arm support oil cylinder 3 to overturn about 90 degree; In the inverted situation of first segment jib 11, first segment jib 11 can extend to the afterbody of engineering machinery or driver's cabin direction; Second section jib 12 is hinged and be folded to the top of first segment jib 11 with first segment jib 11; Second section jib 12 all runs through the car body of engineering machinery to most minor details jib, and the length direction namely along engineering machinery is through to its afterbody from the driver's cabin of engineering machinery.
In boom device of the present invention, turntable is arranged on the middle part of engineering machinery, first segment jib is inverted and is extended to the afterbody of engineering machinery or driver's cabin direction, like this, second section jib just can run through the car body of whole engineering machinery to most minor details jib, thus the layout of overlength jib can be realized, improve the expansion height of whole boom device further to expand its cloth scope.
In concrete scheme, as shown in Figure 3, first segment jib 11 can be inverted to tailstock direction.
In preferred version, in boom device, at least one joint jib saves hinged forming by least two arms, and is hinged with telescopic oil cylinder between adjacent two arms joint, two energy-conservation enough rotations mutually of arm under the effect of telescopic oil cylinder.Being blocked by jib longer for single-unit is the comparatively galianconism joint that more than two joints are driven by telescopic oil cylinder, galianconism joint is convenient to carry out processing and fabricating, transport, dismounting, assembly manipulation in jib manufacturing process, and relative to single-unit overlength jib in cloth process, more piece galianconism joint can increase the flexibility of jib cloth, expands the cloth scope of boom device.On the other hand, in jib can also being filled, at least one joint jib is arranged to save dismantled and assembled being formed by connecting by least two arms, in this approach, can not relative motion be had between adjacent two arms joint, in jib manufacturing process equally can so that the processing and fabricating of overlength jib, transport, dismounting, assembly manipulation.
It should be noted that, at least one joint jib saves hinged forming by least two arms, and is hinged with telescopic oil cylinder between adjacent two arms joint, and adjacent two arms joint can be driven under the effect of telescopic oil cylinder to rotate.When more piece jib is the overlength jib crossing over whole car body, the cloth flexibility of this meeting lower arm rack device, by above-mentioned set-up mode, at least one joint jib saves hinged by least two arms, can improve its cloth flexibility to a certain extent.
In preferred version, telescopic oil cylinder can be contained in arm joint, and when in this scheme, jib is in folded state, telescopic oil cylinder can not take jib arrangement space, can avoid the interference of jib in course of action, and telescopic oil cylinder can not affect installation and the layout of carrier pipe.Certainly, telescopic oil cylinder is also not limited to and is contained in arm joint, can also be positioned at arm joint outside.
In concrete scheme, as shown in Figure 3, first segment jib 11 can comprise the first arm joint 111 and the second arm joint 112, first arm joint 111 and the second arm save 112 and hingedly to form, and telescopic oil cylinder 113 is hinged with between the first arm joint 111 and the second arm joint 112, under the effect of telescopic oil cylinder 113, two energy-conservation enough rotations mutually of arm.In preferred scheme, telescopic oil cylinder 113 is contained in the first arm joint 111 and/or in the second arm joint 112.
In concrete scheme, as shown in Figure 4, second section jib 12 can comprise the 3rd arm joint 121 and the 4th arm joint the 122, three arm joint 121 and the 4th arm and save 122 and hingedly to form, and between two arms joints, arranges telescopic oil cylinder realize rotational action to drive two arms joints.
In concrete scheme, boom device at least comprises four hinged successively joint jibs, wherein, section three, jib 13 is bending jib, section three, jib 13 comprises the first straight arm section, turning section and the second straight arm section, first straight arm section and second section jib 12 hinged and be folded to the below of second section jib 12, turning section is preferably arranged on the position at turntable 2 place, Section of four jib 14 and the second straight arm section hinged and be folded to the top of the second straight arm section.When boom device 1 folds, the first straight arm section and the second jib 12 occupy same row arrangement space, and the second straight arm section and the 4th jib 14 occupy another row arrangement space, and turning section is arranged between two row arrangement space.This jib arrangement, a whole set of boom device 1 compact conformation, take full advantage of the arrangement space being positioned at turntable 2 front end below second section jib 12, its space utilization is reasonable.
In a preferred approach, Section of three jib 13 can be saved by two arms and realize connecting by dismantled and assembled mode.As shown in Figure 8, Figure 9, Fig. 8 is the structural representation of Section of three dismantled and assembled connection of jib 13, and Fig. 9 is the enlarged drawing at A place in Fig. 8.With reference to accompanying drawing, Section of three jib 13 comprises the 5th arm joint 131 and dismantled and assembled connection between the 6th arm joint the 132, five arm joint 131 and the 6th arm joint 132, and the dismantled and assembled link position of two arm joints is located on the second straight arm section.Concrete, connected by bearing pin 133 between on the 5th arm joint 131 and the 6th arm joint 132, then junction plate 134 is set on two arm joints, and be fixed on by junction plate 134 respectively on the 5th arm joint 131 and the 6th arm joint 132 respectively by bolt 135, thus realize the dismantled and assembled connection of two arm joints.Dismantled and assembled attended operation is simple, can realize the assembling of two arms joints easily and pull down, and two arms save removable connection can facilitate the processing and fabricating of overlength jib, transport, dismounting, assembly manipulation.
In concrete scheme, boom device at least comprises hinged five joint jibs successively, and Section of five jib 15 can be hinged and be folded to the top of Section of four jib 14 with Section of four jib 14.
In further scheme, Section of five jib 15 is the most minor details jib of boom device, and namely this boom device comprises five joint jibs.As shown in Fig. 3 to Fig. 7, first segment jib 11 comprises the first arm joint 111, second arm joint 112, second section jib 12 comprises the 3rd arm joint the 121, the 4th arm joint 122, section three, jib 13 comprises the 5th arm joint the 131, the 6th arm joint 132, section four, jib 14 comprises the 7th arm joint the 141, the 8th arm joint Section of 142, five jib 15 and comprises front end arms joint 151, middle part arm joint 152 and tail end arm joint 153.Wherein, front end arms joint 151 and middle part arm save 152 and to be dismantled and assembledly formed by connecting; Middle part arm joint 152 and tail end arm save 153 and hingedly to form, and are hinged with telescopic oil cylinder between these two arms joints; Or three arms save hinged successively forming, and be hinged with telescopic oil cylinder between adjacent two arms joint.
In concrete scheme, boom device at least comprises six hinged successively joint jibs, this boom device 1 comprises first segment jib 11, second section jib 12, Section of three jib 13, Section of four jib 14, Section of five jib 15 and Section of six jib, and in six joint jibs, at least one joint jib comprises and is no less than two arm joints.
The present invention is not construed as limiting the quantity of the jib of boom device 1, arrangement, all turntables are positioned at the middle part of engineering machinery, the turntable of first segment jib and engineering machinery is hinged, and first segment jib is inverted, second section jib and first segment jib hinged and be folded to the top of first segment jib; Second section jib to most minor details jib all runs through the car body of engineering machinery all should in protection scope of the present invention.
In above-described embodiment, first segment jib 11 is inverted to tailstock direction, and the present invention is also confined to this, and first segment jib 11 also can be inverted to headstock direction, and as shown in Figure 8, Figure 9, this two schemes all should in protection scope of the present invention.
Present invention also offers a kind of concrete mixer, this concrete mixer has above-mentioned boom device.Because above-mentioned boom device has above-mentioned technique effect, the concrete mixer with this boom device also should have corresponding technique effect, is no longer described in detail at this.
Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (8)
1. a boom device, for engineering machinery, comprise more piece jib hinged successively, the turntable of first segment jib and engineering machinery is hinged, turntable is positioned at the middle part of engineering machinery, it is characterized in that, first segment jib is inverted, second section jib and first segment jib hinged and be folded to the top of first segment jib; Second section jib all runs through the car body of engineering machinery to most minor details jib;
At least one joint jib saves hinged forming by least two arms, is hinged with telescopic oil cylinder between adjacent two arms joint; Or at least one joint jib saves dismantled and assembled being formed by connecting by least two arms;
Described boom device at least comprises hinged four joint jibs successively, and wherein, Section of three jib is the jib that turns round, and it comprises the first straight arm section, turning section and the second straight arm section, the first straight arm section and second section jib hinged and be folded to the below of second section jib; Section four, jib and the second straight arm section hinged and be folded to the top of the second straight arm section; First segment jib and Section of three jib are located in the same horizontal plane.
2. boom device according to claim 1, is characterized in that, first segment jib saves hinged forming by two arms, and is hinged with telescopic oil cylinder between two arm joints.
3. boom device according to claim 1, is characterized in that, Section of three jib saves dismantled and assembled being formed by connecting by two arms, and the dismantled and assembled link position of two arm joints is located at the second straight arm section.
4. boom device according to claim 1, is characterized in that, second section jib, Section of three jib and Section of four jib include two arm joints.
5. boom device according to claim 1, is characterized in that, described boom device at least comprises hinged five joint jibs successively, Section of five jib and Section of four jib hinged and be folded to the top of Section of four jib.
6. boom device according to claim 5, is characterized in that, Section of five jib is most minor details jib, and Section of five jib comprises three arms joints: front end arms joint, middle part arm joint and tail end arm joint;
Front end arms joint saves dismantled and assembled being formed by connecting with middle part arm; Middle part arm joint and tail end arm save hinged forming, and are hinged with telescopic oil cylinder between these two arms joints; Or three arms save hinged successively forming, and be hinged with telescopic oil cylinder between adjacent two arms joint.
7. the boom device according to any one of claim 1-6, is characterized in that, first segment jib extends to the driver's cabin of engineering machinery, or extends to the afterbody of engineering machinery.
8. a concrete mixer, is characterized in that, comprises the boom device described in any one of claim 1-7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210044355.1A CN102561703B (en) | 2012-02-24 | 2012-02-24 | Boom device and concrete pump truck |
| PCT/CN2012/085800 WO2013123793A1 (en) | 2012-02-24 | 2012-12-04 | Boom device and concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210044355.1A CN102561703B (en) | 2012-02-24 | 2012-02-24 | Boom device and concrete pump truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102561703A CN102561703A (en) | 2012-07-11 |
| CN102561703B true CN102561703B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210044355.1A Active CN102561703B (en) | 2012-02-24 | 2012-02-24 | Boom device and concrete pump truck |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102561703B (en) |
| WO (1) | WO2013123793A1 (en) |
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| CN102561703B (en) * | 2012-02-24 | 2015-05-27 | 三一重工股份有限公司 | Boom device and concrete pump truck |
| CN103993742B (en) * | 2014-05-26 | 2016-08-31 | 上海汽车改装厂有限公司 | A kind of suspension type concrete spreader |
| CN109467033B (en) * | 2018-12-14 | 2024-04-26 | 湖南中联重科智能高空作业机械有限公司 | Mounting device, telescopic boom, aerial working equipment, mounting and maintenance method |
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| CN110732862A (en) * | 2019-11-23 | 2020-01-31 | 郑州弗曼智能设备科技有限公司 | Press mounting method and press mounting platform for arm pin shaft of pump truck |
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| CN115142681B (en) * | 2021-03-31 | 2023-10-27 | 三一汽车制造有限公司 | Engineering machinery |
| CN115142678B (en) * | 2021-03-31 | 2024-02-06 | 三一汽车制造有限公司 | Arm support device and engineering machinery |
| CN115142679B (en) * | 2021-03-31 | 2023-08-29 | 三一汽车制造有限公司 | Engineering machinery |
| CN215631725U (en) * | 2021-04-28 | 2022-01-25 | 三一汽车制造有限公司 | Turning arm support, arm support device and operation machine |
| CN113247835A (en) * | 2021-05-25 | 2021-08-13 | 中国铁建电气化局集团有限公司 | Automatic folding flexible operation platform |
| CN114086767B (en) * | 2021-12-03 | 2023-04-14 | 上海建工集团股份有限公司 | Design method of autoregressive bilateral open-close type cantilever crane pump pipe |
| CN117588059B (en) * | 2024-01-18 | 2024-04-19 | 湘潭恒拓机械设备有限公司 | Arm support device of concrete pump truck |
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| CN102383603B (en) * | 2011-08-19 | 2014-01-15 | 三一汽车制造有限公司 | Concrete pump truck and arm support device thereof |
| CN202441063U (en) * | 2012-02-06 | 2012-09-19 | 三一重工股份有限公司 | Rotary table and engineering machinery and arm support devices thereof |
| CN102561703B (en) * | 2012-02-24 | 2015-05-27 | 三一重工股份有限公司 | Boom device and concrete pump truck |
-
2012
- 2012-02-24 CN CN201210044355.1A patent/CN102561703B/en active Active
- 2012-12-04 WO PCT/CN2012/085800 patent/WO2013123793A1/en active Application Filing
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| US3572380A (en) * | 1968-10-08 | 1971-03-23 | Challenge Cook Bros Inc | Concrete pump boom |
| CN101292072A (en) * | 2005-10-18 | 2008-10-22 | 普茨迈斯特混凝土泵有限公司 | Working mast, in particular for large manipulators and movable concrete pumps |
| EP1847667A2 (en) * | 2006-04-20 | 2007-10-24 | Cifa S.p.A. | Lorry-mounted concrete pump with increased extension of the articulated delivering boom and outline within the limits set by the European code on free circulation on the road |
| CN201738589U (en) * | 2010-08-19 | 2011-02-09 | 三一重工股份有限公司 | Arm support system and concrete pump truck |
| CN102359277A (en) * | 2011-09-22 | 2012-02-22 | 三一重工股份有限公司 | Arm frame device and engineering machine |
| CN102359278A (en) * | 2011-09-28 | 2012-02-22 | 中联重科股份有限公司 | Arm support of concrete pump truck and concrete pump truck |
| CN202441065U (en) * | 2012-02-24 | 2012-09-19 | 三一重工股份有限公司 | Arm support device and concrete pump truck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102561703A (en) | 2012-07-11 |
| WO2013123793A1 (en) | 2013-08-29 |
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