CN106006412A - Eight-section lazy arm for crane - Google Patents
Eight-section lazy arm for crane Download PDFInfo
- Publication number
- CN106006412A CN106006412A CN201610392216.6A CN201610392216A CN106006412A CN 106006412 A CN106006412 A CN 106006412A CN 201610392216 A CN201610392216 A CN 201610392216A CN 106006412 A CN106006412 A CN 106006412A
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- CN
- China
- Prior art keywords
- hydraulic cylinder
- arm
- cylinder
- hydraulic
- retracting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
-
- 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
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
-
- 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
- B66C23/62—Constructional features or details
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
- B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
- B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
-
- 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
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
- B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses an eight-section lazy arm for a crane. The eight-section lazy arm for the crane comprises a second arm (3) and a telescopic cylinder set which is slidably installed on the second arm (3). The telescopic cylinder set comprises a plurality of telescopic cylinders which are slidably connected in a sleeved mode in sequence in the length direction, wherein the telescopic cylinders are of the same structure, and the sectional dimensions of the telescopic cylinders change gradually. A telescopic cylinder hydraulic cylinder set (9) used for controlling the telescopic cylinders to stretch and retract is arranged on the second arm (3). The telescopic cylinder hydraulic cylinder set (9) comprises a plurality of hydraulic cylinders which are in one-to-one correspondence with the telescopic cylinders and in transmission connection with the telescopic cylinders, and the telescopic cylinder hydraulic cylinder set (9) is connected with a hydraulic control system. The eight-section lazy arm for the crane has the beneficial effects that stretching and retracting of the eight-section lazy arm can be achieved, so that the effective length of the lazy arm is increased, and the application range of the eight-section lazy arm is widened; and by controlling the gaps between all the telescopic cylinders to be smaller than 10 mm, the deflection after the telescopic cylinders stretch out completely can be effectively controlled, and the connection strength and connection rigidity of the telescopic cylinders are improved.
Description
Technical field
The present invention relates to loop wheel machine field, specifically, be a kind of loop wheel machine eight joint arms.
Background technology
Loop wheel machine is the popular address of crane, is widely used at a series of heavy industry products such as boats and ships, equipment, machinery, moulds.Runabout crane, derrick crane and jib crane is generally can be divided into by lifting character.The loop wheel machine of autocrane one class, its hoisting operation is partially installed on general purpose freight car chassis, under no-load condition and loop wheel machine is placed in loading on wagon box and firm after, just can travel on road, it has handiness, maneuverability, transfer rapidly and the advantage such as mobility strong, the situation being suitable for frequent conversion work place operation uses, but loop wheel machine lorry does not allows to hang load to travel, it is widely used in construction, petrochemical industry, building site construction, hydraulic and electric engineering, urban construction, factory's removal of home, the handling of heavy logistics and installing engineering.
Under the conditions of prior art, the loop wheel machine of domestic production and design multipotency reaches arm joint number and only has six joints to stretch, it is difficult to meet construction demand.
Summary of the invention
It is an object of the invention to provide a kind of loop wheel machine applied widely, that bearing capacity is strong, mechanical strength is high, use is safe and save arms with eight.
The present invention is achieved through the following technical solutions: a kind of loop wheel machine saves arms with eight, including the second arm and the retracting cylinder group being slidably mounted on the second arm, retracting cylinder group includes that several structures that elongatedness direction is the most slidably socketed are identical, the retracting cylinder of sectional dimension gradual change, second arm is provided with for controlling the retracting cylinder hydraulic cylinder group that retracting cylinder group is flexible, retracting cylinder hydraulic cylinder group includes several hydraulic cylinders with retracting cylinder one_to_one corresponding and being in transmission connection with retracting cylinder, and retracting cylinder hydraulic cylinder group is connected with hydraulic control system.
In described retracting cylinder group, the gap of each retracting cylinder is less than or equal to 10mm.
Several equally distributed slide blocks it are provided with between each retracting cylinder in described retracting cylinder group.
The described hydraulic cylinder in retracting cylinder hydraulic cylinder group is sequentially connected in series according to the circulating direction of hydraulic medium.
Pipeline between described hydraulic cylinder and hydraulic cylinder is provided with sequence valve, and sequence valve is decompression sequence valve.
The described piston rod in hydraulic cylinder is hollow piston rod.
Described hydraulic cylinder is disposed in parallel relation to one another and L-shaped distribution.
The free end of the second described arm is hinged with the first arm, and the first arm is hinged with the second luffing hydraulic cylinder, and piston rod and second arm of the second luffing hydraulic cylinder are hinged, and the second luffing hydraulic cylinder is connected with hydraulic control system.
The free end of the first described arm is hinged with turntable, and turntable is hinged with the first luffing hydraulic cylinder, and piston rod and first arm of the first luffing hydraulic cylinder are hinged, and the first luffing hydraulic cylinder is connected with hydraulic control system.
Described turntable is arranged on rotating disk, and rotating disk is rotatably provided on bearing, and bearing is provided with leg structure.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention is capable of eight joint hoisting arm expansions, thus improve the effective length of arm, add its scope of application, by by the clearance control of each retracting cylinder at below 10mm, can effectively control retracting cylinder fully extended after amount of deflection, and improve the bonding strength between retracting cylinder and connect rigidity；
(2) by the present invention in that retracting cylinder can be slidably mounted in slide opening, the bonding strength between retracting cylinder can be improved and connect rigidity, can make retracting cylinder when flexible by arranging slide block, gap between retracting cylinder keeps constant, improve hoisting arm expansion, the stability of withdrawal and the rigidity of arm, the amount of deflection after being conducive to control arm fully extended is in claimed range；
(3) by the present invention in that and can produce pressure differential before and after sequence valve with sequence valve, stretch out it is thus possible to realize using hydraulic cylinder to control retracting cylinder in order or reclaim, stability during hoisting arm expansion can be strengthened, and control can be made more simple and convenient, avoid confusion, retracting cylinder and hydraulic cylinder one_to_one corresponding so that retracting cylinder can individually be controlled, and improves the motility of control；
(4) present invention is by arranging the first arm and turntable, the radius of clean-up of arm can be increased, improve its scope of application, and arm can be folded, avoid its not the used time take the biggest space, by arranging rotating disk, arm can be enough made to rotate with the center of rotation of rotating disk for the center of circle, the working range of arm can be improved, the stability of arm can be increased by arranging leg structure, avoid the phenomenon that collapses, by making hydraulic cylinder be disposed in parallel relation to one another and L-shaped distribution, make the compact conformation of the present invention, avoid hydraulic cylinder that the folding storage of arm is interfered.
Accompanying drawing explanation
Fig. 1 is a kind of loop wheel machine right view with eight joint arms；
Fig. 2 is a kind of loop wheel machine front view with eight joint arms；
Fig. 3 is a kind of loop wheel machine left view expanded view with eight joint arms；
Fig. 4 is the structural representation that eight joint arms all stretch out；
Fig. 5 is the structural representation of retracting cylinder hydraulic cylinder group；
Wherein 1 turntable, 2 first arms, 3 second arms, 31 A retracting cylinders, 32 B retracting cylinders, 33 C retracting cylinders, 34 D retracting cylinders, 35 E retracting cylinders, 36 F retracting cylinders, 37 G retracting cylinders, 38 H retracting cylinders, 4 second luffing hydraulic cylinders, 5 first luffing hydraulic cylinders, 6 rotating disks, 7 bearings, 8 leg structures, 9 retracting cylinder hydraulic cylinder groups, 91 A hydraulic cylinders, 92 B hydraulic cylinders, 93 C hydraulic cylinders, 94 D hydraulic cylinders, 95 E hydraulic cylinders, 96 F hydraulic cylinders, 97 G hydraulic cylinder, 98 H hydraulic cylinders.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1:
nullSuch as Fig. 1、Fig. 2、Shown in Fig. 3，In the present embodiment，A kind of loop wheel machine saves arms with eight，On the basis of six joint arms，Do not reduce the weight of whole arm，Arm is designed as eight nodule structures，It includes the second arm 3 and the retracting cylinder group being slidably mounted on the second arm 3，As shown in Figure 4，Retracting cylinder group includes that the eight nodule structures that elongatedness direction is the most slidably socketed are identical、Sectional dimension gradual change A retracting cylinder 31、B retracting cylinder 32、C retracting cylinder 33、D retracting cylinder 34、E retracting cylinder 35、F retracting cylinder 36、G retracting cylinder 37 and H retracting cylinder 38，The length of each of which joint retracting cylinder is between 2.5m ~ 3m，Oil-hydraulic bending machine tool bending and forming is used when each retracting cylinder manufactures，At interface Shielding gas after shaping，And guarantee that the surface planarity of retracting cylinder meets the requirements，By being dimensioned so that the gap of each retracting cylinder is 8mm，The slide block that thickness is 8mm also it is embedded with in retracting cylinder，So that keeping the gap of each retracting cylinder constant，Owing to the gap of six joint arms is generally 15mm，When arm is fully extended，The amount of deflection of arm is bigger，Therefore to control the amount of deflection of eight joint arms，In the present embodiment，The gap of arm is designed as 8mm.
nullIn the present embodiment，The free end of the second described arm 3 is hinged with the first arm 2，The second luffing hydraulic cylinder 4 it is hinged with on first arm 2，Piston rod and second arm 3 of the second luffing hydraulic cylinder 4 are hinged，Second luffing hydraulic cylinder 4 is connected with hydraulic control system，By using the second luffing hydraulic cylinder 4 can control the pin joint rotation around the second arm 3 and the first arm 2 of second arm 3，Can receive to prevent it from when not using, taking too many space by the second arm 3 with this，The free end of the first arm 2 is hinged with turntable 1，The first luffing hydraulic cylinder 5 it is hinged with on turntable 1，Piston rod and first arm 2 of the first luffing hydraulic cylinder 5 are hinged，First luffing hydraulic cylinder 5 is connected with hydraulic control system，By using the first luffing hydraulic cylinder 5 that first arm 2 can be also carried out storage，Reduce the space shared by the arm not used time further，By arranging the first arm 2 and turntable 1 can also increase the effective radius of arm，Increase its working range，In the present embodiment，Turntable 1 is arranged on rotating disk 6，Rotating disk 6 is rotatably provided on bearing 7，Bearing 7 is provided with leg structure 8，Rotate in the range of 360 ° by using rotating disk 6 to be capable of arm，Thus improve its motility and working range.
Second arm 3 is provided with for controlling the retracting cylinder hydraulic cylinder group 9 that retracting cylinder group is flexible, retracting cylinder hydraulic cylinder group 9 include eight with retracting cylinder one_to_one corresponding the hydraulic cylinder that is in transmission connection with retracting cylinder, retracting cylinder hydraulic cylinder group 9 is connected with hydraulic control system, wherein, described retracting cylinder hydraulic cylinder group 9 includes A hydraulic cylinder 91, B hydraulic cylinder 92, C hydraulic cylinder 93, D hydraulic cylinder 94, E hydraulic cylinder 95, F hydraulic cylinder 96, G hydraulic cylinder 97 and H hydraulic cylinder 98, wherein, the piston rod of H hydraulic cylinder 98 is connected with H retracting cylinder 38, H hydraulic cylinder 98 is connected with G retracting cylinder 37, slide in H slide opening by using H hydraulic cylinder 98 to control H retracting cylinder 38；
The piston rod of G hydraulic cylinder 97 is connected with G retracting cylinder 37, and G hydraulic cylinder 97 is connected with F retracting cylinder 36, slides in G slide opening by using G hydraulic cylinder 97 to control G retracting cylinder 37；
The piston rod of F hydraulic cylinder 96 is connected with F retracting cylinder 36, and F hydraulic cylinder 96 is connected with E retracting cylinder 35, slides in F slide opening by using F hydraulic cylinder 96 to control F retracting cylinder 36；
The piston rod of E hydraulic cylinder 95 is connected with E retracting cylinder 35, and E hydraulic cylinder 95 and D retracting cylinder 34 connect through use E hydraulic cylinder 95 and control E retracting cylinder 35 and slide in E slide opening；
The piston rod of D hydraulic cylinder 94 is connected with D retracting cylinder 34, and D hydraulic cylinder 94 is connected with C retracting cylinder 33, slides in D slide opening by using D hydraulic cylinder 94 to control D retracting cylinder 34；
The piston rod of C hydraulic cylinder 93 is connected with C retracting cylinder 33, and C hydraulic cylinder 93 is connected with B retracting cylinder 32, slides in C slide opening by using C hydraulic cylinder 93 to control C retracting cylinder 33；
The piston rod of B hydraulic cylinder 92 is connected with B retracting cylinder 32, and B hydraulic cylinder 92 is connected with A retracting cylinder 31, slides in B slide opening by using B hydraulic cylinder 92 to control B retracting cylinder 32；
The piston rod of A hydraulic cylinder 91 is connected with A retracting cylinder 31, and A hydraulic cylinder 91 is connected with the second arm 3, slides in A slide opening by using A hydraulic cylinder 91 to control A retracting cylinder 31；
A hydraulic cylinder 91, B hydraulic cylinder 92, C hydraulic cylinder 93, D hydraulic cylinder 94, E hydraulic cylinder 95, F hydraulic cylinder 96, G hydraulic cylinder 97 and H hydraulic cylinder 98 are connected with hydraulic control system.
nullIn the present embodiment，As shown in Figure 5，Described A hydraulic cylinder 91、B hydraulic cylinder 92、C hydraulic cylinder 93、D hydraulic cylinder 94、E hydraulic cylinder 95、F hydraulic cylinder 96、G hydraulic cylinder 97 and H hydraulic cylinder 98 is sequentially connected in series according to the circulating direction of hydraulic medium，And A hydraulic cylinder 91、B hydraulic cylinder 92、C hydraulic cylinder 93、D hydraulic cylinder 94、E hydraulic cylinder 95、F hydraulic cylinder 96、The setting parallel to each other and L-shaped of G hydraulic cylinder 97 and H hydraulic cylinder 98，The distribution enabling to hydraulic cylinder with this is compacter，Be conducive to reducing the space that hydraulic cylinder takies，Avoid hydraulic cylinder and the first arm 2、Second arm 3 or retracting cylinder group interfere when folding，Described A hydraulic cylinder 91、B hydraulic cylinder 92、C hydraulic cylinder 93、D hydraulic cylinder 94、E hydraulic cylinder 95、Piston rod in F hydraulic cylinder 96 and G hydraulic cylinder 97 is hollow piston rod，And on the pipeline between A hydraulic cylinder 91 and B hydraulic cylinder 92、On pipeline between B hydraulic cylinder 92 and C hydraulic cylinder 93、On pipeline between C hydraulic cylinder 93 and D hydraulic cylinder 94、On pipeline between D hydraulic cylinder 94 and E hydraulic cylinder 95、On pipeline between E hydraulic cylinder 95 and F hydraulic cylinder 96、It is equipped with sequence valve 99 on pipeline on pipeline between F hydraulic cylinder 96 and G hydraulic cylinder 97 and between G hydraulic cylinder 97 and H hydraulic cylinder 98，Sequence valve 99 is decompression sequence valve，In the present embodiment，Often through a sequence valve 99 during hydraulic oil oil-feed，Oil pressure reduces 0.5MPa.
nullTelescopic oil cylinder is used to control the flowing of hydraulic oil，When the piston rod of telescopic oil cylinder stretches，Hydraulic oil flow is to A hydraulic cylinder 91，When the piston rod of telescopic oil cylinder reclaims，Hydraulic oil is recovered，Hydraulic fluid pressure before entering A hydraulic cylinder 91 is set as 26MPa，The operating pressure of A hydraulic cylinder 91 is 26MPa，After the piston rod of A hydraulic cylinder 91 is stretched to the greatest extent，Hydraulic oil enters B hydraulic cylinder 92 through the hollow piston rod of A hydraulic cylinder 91，Owing to being provided with a sequence valve 99 between A hydraulic cylinder 91 and B hydraulic cylinder 92，Hydraulic oil can be through blood pressure lowering so that the oil pressure entered in B hydraulic cylinder 92 be 25.5MPa，The operating pressure of B hydraulic cylinder 92 is 25.5MPa，In like manner can obtain，The operating pressure of C hydraulic cylinder is 25MPa，The operating pressure of D hydraulic cylinder is 24.5MPa，The operating pressure of E hydraulic cylinder is 24MPa，The operating pressure of F hydraulic cylinder is 23.5MPa，The operating pressure of G hydraulic cylinder is 23MPa，The operating pressure of H hydraulic cylinder is 22.5MPa，By using sequence valve 99 blood pressure lowering，A retracting cylinder 31 can be used、B retracting cylinder 32、C retracting cylinder 33、D retracting cylinder 34、E retracting cylinder 35、F retracting cylinder 36、G retracting cylinder 37 and H retracting cylinder 38 stretches out the most in order，It is achieved thereby that the purpose stretched out in order，When telescopic oil cylinder is regained, sequence valve 99 is check valve，Do not produce pressure drop，In the present embodiment，Set when telescopic oil cylinder is regained pressure as 28MPa，So the operating pressure of all oil cylinders is all 28MPa when regaining，Thus when avoiding reclaiming，Because there is pressure drop，Telescopic oil cylinder can not normal recovery operation.
Embodiment 2:
In the present embodiment, Hydraulic Elements use the Hydraulic Elements of big flow, hydraulic tube piece uses the pipe fitting of big orifice, if the flexible pipe circulated for hydraulic oil or hard tube all latus rectums are the pipe fitting of DN16, oil pipe of crossing in hollow piston rod is also adopted by the high accuracy cold-drawing seamless pipe of DN16, with this in the case of ensureing oil cylinder intensity, hydraulic fluid flow rate is sufficiently large, it is unlikely to high oil temperature, affect use and the life-span of Hydraulic Elements, in the present embodiment, by installing radiator additional to reduce oil temperature and also be able to avoid high oil temperature and build-up of pressure loses, affect use and the life-span of Hydraulic Elements.
Embodiment 3:
In the present embodiment, hollow piston rod uses solid piston bar to be formed by depth drill processing and manufacturing.Ensure that the hole size precision of hollow piston rod with this, thus ensure that the intensity of piston rod and cross oil mass, the hollow piston rod hole wall fineness through depth drill processing has ensured, the hollow piston rod pressure drop of pressure drop ratio seamless pipe manufacture is obviously reduced.The hollow piston rod of depth drill processing also solves, the problem causing the pollution to oil because heat treatment generation scaling with the hollow piston rod of hot seamless tube manufacture.
Embodiment 4:
In the present embodiment, the oil pipe of crossing in hollow piston rod uses high accuracy cold-drawing seamless pipe to make, and the hole wall fineness of cold-drawn high-precision is more a lot of than the fineness of hot-rolled pipe such that it is able to reduces hydraulic oil and passed through the pressure drop of oil pipe.
Embodiment 5:
The hard tube limit connected between oil cylinder uses the high accuracy cold-drawing seamless pipe of DN16, reduces curved position as far as possible, make oil pass smoothly, can reduce pressure drop with this during bend pipe.
Embodiment 6:
In the present embodiment, the present invention is arranged on crane and transports with car, in order to transport is to the place needing use.
The above, be only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction, every above example is made according to the technical spirit of the present invention any simple modification, equivalent variations, within each falling within protection scope of the present invention.
Claims (10)
1. a loop wheel machine saves arms with eight, it is characterized in that: include the second arm (3) and the retracting cylinder group being slidably mounted on the second arm (3), retracting cylinder group includes that several structures that elongatedness direction is the most slidably socketed are identical, the retracting cylinder of sectional dimension gradual change, second arm (3) is provided with for controlling retracting cylinder hydraulic cylinder group (9) that retracting cylinder group is flexible, retracting cylinder hydraulic cylinder group (9) includes several hydraulic cylinders with retracting cylinder one_to_one corresponding and being in transmission connection with retracting cylinder, and retracting cylinder hydraulic cylinder group (9) is connected with hydraulic control system.
A kind of loop wheel machine the most according to claim 1 saves arms with eight, it is characterised in that: in described retracting cylinder group, the gap of each retracting cylinder is less than or equal to 10mm.
A kind of loop wheel machine the most according to claim 2 saves arms with eight, it is characterised in that: it is provided with several equally distributed slide blocks in described retracting cylinder group between each retracting cylinder.
A kind of loop wheel machine the most according to claim 2 saves arms with eight, it is characterised in that: the described hydraulic cylinder in retracting cylinder hydraulic cylinder group (9) is sequentially connected in series according to the circulating direction of hydraulic medium.
A kind of loop wheel machine the most according to claim 4 saves arms with eight, it is characterised in that: the pipeline between described hydraulic cylinder and hydraulic cylinder is provided with sequence valve (99), and sequence valve (99) is decompression sequence valve.
A kind of loop wheel machine the most according to claim 5 saves arms with eight, it is characterised in that: the described piston rod in hydraulic cylinder is hollow piston rod.
A kind of loop wheel machine the most according to claim 1 saves arms with eight, it is characterised in that: described hydraulic cylinder is disposed in parallel relation to one another and L-shaped distribution.
A kind of loop wheel machine the most according to claim 1 saves arms with eight, it is characterized in that: the free end of described the second arm (3) is hinged with the first arm (2), the second luffing hydraulic cylinder (4) it is hinged with on first arm (2), piston rod and second arm (3) of the second luffing hydraulic cylinder (4) are hinged, and the second luffing hydraulic cylinder (4) is connected with hydraulic control system.
A kind of loop wheel machine the most according to claim 8 saves arms with eight, it is characterized in that: the free end of described the first arm (2) is hinged with turntable (1), the first luffing hydraulic cylinder (5) it is hinged with on turntable (1), piston rod and first arm (2) of the first luffing hydraulic cylinder (5) are hinged, and the first luffing hydraulic cylinder (5) is connected with hydraulic control system.
A kind of loop wheel machine the most according to claim 9 saves arms with eight, it is characterised in that: described turntable (1) is arranged on rotating disk (6), and rotating disk (6) is rotatably provided on bearing (7), and bearing (7) is provided with leg structure (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610392216.6A CN106006412A (en) | 2016-06-06 | 2016-06-06 | Eight-section lazy arm for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610392216.6A CN106006412A (en) | 2016-06-06 | 2016-06-06 | Eight-section lazy arm for crane |
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| Publication Number | Publication Date |
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| CN106006412A true CN106006412A (en) | 2016-10-12 |
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ID=57089614
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610392216.6A Pending CN106006412A (en) | 2016-06-06 | 2016-06-06 | Eight-section lazy arm for crane |
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| Country | Link |
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| CN (1) | CN106006412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682980A (en) * | 2021-09-06 | 2021-11-23 | 徐州徐工随车起重机有限公司 | Six-section telescopic arm device for folding arm automobile crane |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1003896A3 (en) * | 1990-02-26 | 1992-07-07 | Bonneux Hydraulic Systems Nv | Loading crane on a truck |
| CN201318349Y (en) * | 2008-12-26 | 2009-09-30 | 常州中汽商用汽车有限公司 | Multi-section telescopic arm telescopic sequence control system |
| CN201334325Y (en) * | 2008-12-30 | 2009-10-28 | 武桥重工集团股份有限公司 | Three-section crane arm structure capable of stretching in order with loading. |
| CN102381642A (en) * | 2011-11-29 | 2012-03-21 | 徐州天地重型机械制造有限公司 | Synchronous telescopic device |
| CN202400760U (en) * | 2011-12-30 | 2012-08-29 | 中联重科股份有限公司 | Telescopic arm device of crane and crane |
| CN202988613U (en) * | 2012-09-27 | 2013-06-12 | 镇江维斯特船用设备有限公司(外商独资) | Crane for ship |
| CN203486801U (en) * | 2013-09-04 | 2014-03-19 | 徐州重型机械有限公司 | Crane as well as single-cylinder plug type retractable boom and boom position detection device thereof |
| CN104340884A (en) * | 2014-08-20 | 2015-02-11 | 中联重科股份有限公司 | Control method, equipment and system for single-cylinder bolt type telescopic arm and engineering machinery |
| CN105605022A (en) * | 2016-03-14 | 2016-05-25 | 三一帕尔菲格特种车辆装备有限公司 | Multi-oil-cylinder sequential telescopic mechanism and engineering machine |
| CN205892578U (en) * | 2016-06-06 | 2017-01-18 | 梁协铭 | Loop wheel machine is with eight sections davits |
-
2016
- 2016-06-06 CN CN201610392216.6A patent/CN106006412A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1003896A3 (en) * | 1990-02-26 | 1992-07-07 | Bonneux Hydraulic Systems Nv | Loading crane on a truck |
| CN201318349Y (en) * | 2008-12-26 | 2009-09-30 | 常州中汽商用汽车有限公司 | Multi-section telescopic arm telescopic sequence control system |
| CN201334325Y (en) * | 2008-12-30 | 2009-10-28 | 武桥重工集团股份有限公司 | Three-section crane arm structure capable of stretching in order with loading. |
| CN102381642A (en) * | 2011-11-29 | 2012-03-21 | 徐州天地重型机械制造有限公司 | Synchronous telescopic device |
| CN202400760U (en) * | 2011-12-30 | 2012-08-29 | 中联重科股份有限公司 | Telescopic arm device of crane and crane |
| CN202988613U (en) * | 2012-09-27 | 2013-06-12 | 镇江维斯特船用设备有限公司(外商独资) | Crane for ship |
| CN203486801U (en) * | 2013-09-04 | 2014-03-19 | 徐州重型机械有限公司 | Crane as well as single-cylinder plug type retractable boom and boom position detection device thereof |
| CN104340884A (en) * | 2014-08-20 | 2015-02-11 | 中联重科股份有限公司 | Control method, equipment and system for single-cylinder bolt type telescopic arm and engineering machinery |
| CN105605022A (en) * | 2016-03-14 | 2016-05-25 | 三一帕尔菲格特种车辆装备有限公司 | Multi-oil-cylinder sequential telescopic mechanism and engineering machine |
| CN205892578U (en) * | 2016-06-06 | 2017-01-18 | 梁协铭 | Loop wheel machine is with eight sections davits |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682980A (en) * | 2021-09-06 | 2021-11-23 | 徐州徐工随车起重机有限公司 | Six-section telescopic arm device for folding arm automobile crane |
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Application publication date: 20161012 |