CN106629427A - Box-type suspension arm synchronous telescopic mechanism - Google Patents
Box-type suspension arm synchronous telescopic mechanism Download PDFInfo
- Publication number
- CN106629427A CN106629427A CN201610945727.6A CN201610945727A CN106629427A CN 106629427 A CN106629427 A CN 106629427A CN 201610945727 A CN201610945727 A CN 201610945727A CN 106629427 A CN106629427 A CN 106629427A
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- China
- Prior art keywords
- arm
- elevator
- section
- rope
- telescopic
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- 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.)
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Classifications
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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
- B66C23/62—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a box-type suspension arm synchronous telescopic mechanism comprising a stretching-out winch, a pulling-back winch, a basic arm, N sections of telescopic arms, N groups of rope rows and a pulling-back rope; the N sections of telescopic arms are embedded in the basic arm, and the N sections of telescopic arms are formed by embedding the first section of telescopic arm to the Nth section of telescopic arm from outside to inside in sequence; a pulley block is arranged at the front end of the basic arm; a pulley block is arranged on each of the first section of telescopic arm to the (N-1)th section of telescopic arm; one end of the first group of rope row is wound on the stretching-out winch and the other end of the first group of rope row bypasses the pulley block at the front end of the basic arm and is then fixed on the first section of telescopic arm; one end of the second group of rope row is wound on the basic arm and the other end of the second group of rope row bypasses the pulley block at the front end of the first section of telescopic arm and is then fixed on the second section of telescopic arm; and so on. One end of the pulling-back rope is fixed on the Nth section of telescopic arm, and the other end of the pulling-back rope is wound on the pulling-back winch, wherein N is a positive integer larger than or equal to 2. According to the box-type suspension arm synchronous telescopic mechanism, the dead weight of each section of telescopic arm is reduced, and the production cost of each section of telescopic arm is reduced.
Description
Technical field
The invention belongs to technical field of engineering machinery, more particularly to a kind of box arm synchronous telescoping mechanism.
Background technology
Arm is the core component of crane, particularly autocrane, wheel-mounted crane, crawler crane etc., while
It is also above-mentioned crane most important load-bearing structural member in load operation is hung, the weight of arm, intensity, rigidity will have been directly affected
The lifting performance of heavy-duty machine.Arm can be divided into the box and big class of truss-like two according to its version, and at present more piece is box hangs
The telescoping mechanism of arm mainly has two kinds of forms of oil cylinder rope formula and single cylinder bolt-type, it is contemplated that the manufacturing technology of cost and correlation,
At present the crane of box arm adopts oil cylinder rope formula telescoping mechanism mostly.
At least need one to be arranged on inside arm cylinder, can extend along arm cylinder using the crane of oil cylinder rope formula telescoping mechanism
The flexible telescopic oil cylinder in direction, the arm of single oil cylinder even need to arrange two or more inside arm cylinder, can prolong along arm cylinder
Stretch the flexible telescopic oil cylinder in direction, it is used per root for the crane of such as current 100 tons and its box arm of above tonnage
The quality of telescopic oil cylinder is even more than the weight of a section arm, hence in so that the weight and cost of crane arm remain high,
Affect the lifting performance of crane.
The content of the invention
The purpose of the present invention is that and overcomes the deficiencies in the prior art, there is provided a kind of box arm synchronous telescoping mechanism,
The present invention need not arrange the telescopic oil cylinder that can be stretched along arm cylinder bearing of trend in each section telescopic arm, reduce each section telescopic arm
Deadweight, and due to arranging telescopic oil cylinder in each section telescopic arm, the volume of each section telescopic arm is reduced, and further reduces
The respectively deadweight of section telescopic arm, so effectively reduces the production cost of each section telescopic arm, and improve to apply has the present invention synchronously to stretch
The lifting performance of the crane of contracting mechanism, and the synchronous telescoping mechanism simple structure of the present invention, each section telescopic arm and each elevator
Easily install Deng miscellaneous part, also allow for disassembled for transport, cost of transportation can be reduced.
To achieve these goals, the invention provides a kind of box arm synchronous telescoping mechanism, including stretching out elevator, return
Draw elevator, basic arm, N section telescopic arms, N group ropes, rope of pulling back, driving means one and driving means two；Basic arm is embedded with N sections
Telescopic arm, N section telescopic arms save telescopic arm from first segment telescopic arm to N and embed successively from outside to inside；The front end of basic arm is arranged
There is assembly pulley, the front end that telescopic arm is saved from first segment telescopic arm to N-1 is respectively arranged with assembly pulley；Driving means one with stretch out
Elevator is connected, and driving means two are connected with elevator of pulling back；The one ends wound of first group of rope on elevator is stretched out, the other end
Winding is crossed after the assembly pulley of basic arm front end, is fixed on the first segment telescopic arm being embedded in basic arm；Second group of rope
One end is fixed on basic arm, and the other end is wrapped over after the assembly pulley of first segment telescopic arm front end, is fixed on second section telescopic arm
On；The like, one end of N group ropes is fixed on N-2 section telescopic arms, and the other end is wrapped over before N-1 section telescopic arms
After the assembly pulley at end, it is fixed on N section telescopic arms；Pull back rope one end be fixed on N section telescopic arm on, the other end is wrapped in
Pull back on elevator；Wherein：N is positive integer and N >=2.
Further, the basic arm is fixed relative to elevator position is stretched out.
Further, elevator and the elevator of pulling back of stretching out is individual layer appearance rope elevator.
Further, the winding drum for stretching out elevator is identical with the winding drum external diameter size of elevator of pulling back.
Further, the driving means one are motor or hydraulic motor.
Further, the driving means two are motor or hydraulic motor.
Further, the N is positive integer and N >=3.
Beneficial effects of the present invention：It is flexible equivalent to a multi-section type is formed between each joint arm of the synchronous telescoping mechanism of the present invention
Arm, because the synchronization of the multi-joint telescoping arm is protruded through the rope closing action that elevator rope closing drives first group of rope is stretched out, and is realized
The first segment telescopic arm of arm is stretched out, and other telescopic arms are synchronously stretched out by the telescoping mechanism for arranging.In the same manner, because of the more piece
The synchronization of telescoping boom is retracted through the rope closing action that elevator rope closing of pulling back drives rope of pulling back, and realizes the N section telescopic arms of arm
Retracted, other telescopic arms are synchronously retracted by the telescoping mechanism for arranging, it is achieved thereby that the present invention need not be flexible in each section
Arm is interior to arrange the telescopic oil cylinder that can be stretched along arm cylinder bearing of trend, reduce the deadweight of each section telescopic arm, and because each section stretches
Telescopic oil cylinder need not be set in arm, and the volume of each section telescopic arm is reduced, the deadweight of each section telescopic arm is further reduced, this
Sample effectively reduces the production cost of each section telescopic arm, improves the lifting using the crane for having synchronous telescoping mechanism of the present invention
Performance, and the synchronous telescoping mechanism simple structure of the present invention, each section miscellaneous part such as telescopic arm and each elevator is easily installed,
Transport easy to disassemble, can reduce cost of transportation.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing skill
The accompanying drawing to be used needed for art description is briefly described, it should be apparent that, drawings in the following description are only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the present invention.
Above-mentioned reference：
1st, elevator is stretched out；2nd, first group of rope；3rd, basic arm；4th, assembly pulley；5th, first segment telescopic arm；6th, second group of rope；7
Three groups of ropes；8th, second section telescopic arm；9th, Section of three telescopic arm；10th, pull back rope；11st, pull back elevator.
Specific embodiment
Invention is further illustrated below in conjunction with the accompanying drawings, but is not limited to the scope of the present invention.
Embodiment
As shown in figure 1, a kind of box arm synchronous telescoping mechanism that the present invention is provided, including stretching out elevator 1, elevator of pulling back
11st, basic arm 3, N section telescopic arm, N group ropes, rope 10 of pulling back, driving means one and driving means two；Basic arm 3 is embedded with N sections
Telescopic arm, N section telescopic arms save telescopic arm from first segment telescopic arm 5 to N and embed successively from outside to inside；The front end of basic arm 3 sets
Assembly pulley 4 is equipped with, the front end that telescopic arm is saved from first segment telescopic arm 5 to N-1 is respectively arranged with assembly pulley 4；Driving means one
It is connected with elevator 1 is stretched out, driving means two are connected with elevator 11 of pulling back；The one ends wound of first group of rope 2 is stretching out volume
Raise on 1, other end winding is crossed after the assembly pulley 4 of the front end of basic arm 3, be fixed on the first segment telescopic arm 5 being embedded in basic arm 3
On；One end of second group of rope 6 is fixed on basic arm 3, and the other end is wrapped over after the assembly pulley 4 of the front end of first segment telescopic arm 5,
It is fixed on second section telescopic arm 8；The like, one end of N group ropes is fixed on N-2 section telescopic arms, and the other end is twined
After bypassing the assembly pulley of N-1 section telescopic arms front end, it is fixed on N section telescopic arms；Pull back rope 10 one end be fixed on N section
On telescopic arm, the other end is wrapped in pulls back on elevator 11；Wherein：N is positive integer and N >=2.
The basic arm 3 of the present invention is fixed relative to the position of elevator 1 is stretched out, i.e. basic arm 3 is relative to stretching out the nothing of elevator 1
Along moving for arm bearing of trend.
Elevator 1 and the elevator 12 of pulling back of stretching out of the present invention is individual layer appearance rope elevator.
The winding drum for stretching out elevator 1 of the present invention is identical with the winding drum external diameter size of elevator 12 of pulling back.Stretch out volume
When raising 1 rope closing, elevator 11 of synchronously pulling back puts rope.In the same manner, when stretching out elevator 1 and putting rope, the rope closing of elevator 11 of synchronously pulling back, by stretching out
The winding drum of elevator 1 is identical with the winding drum external diameter size of elevator 12 of pulling back, it is ensured that stretch out elevator 1 and the withdrawing rope of elevator 11 of pulling back
Keep strokes.
The driving means one of the present invention are motor or hydraulic motor.
The driving means two of the present invention are motor or hydraulic motor.
Preferably, the N of the invention is positive integer and N >=3.
As shown in figure 1, with four joint arms（That is N=3）As a example by illustrate the present invention structure：A kind of box the hanging of present invention offer
Arm synchronous telescoping mechanism, including elevator 1, elevator 11, three of pulling back is stretched out telescopic arm, three groups of ropes, ropes 10, driving means of pulling back are saved
One and driving means two；Basic arm 3 is embedded with three section telescopic arms, wherein three section telescopic arms are from first segment telescopic arm 5 to Section three
Telescopic arm 9 is embedded successively from outside to inside, i.e., basic arm 3 embeds first segment telescopic arm 5, and first segment telescopic arm 5 embeds second section and stretches
Contracting arm 8, second section telescopic arm 8 embeds Section of three telescopic arm 9；The front end of basic arm 3 is provided with assembly pulley 4, first segment telescopic arm
5th, the front end of second section telescopic arm 8 is respectively arranged with assembly pulley 4.
Driving means one are connected with elevator 1 is stretched out, and driving means one are stretched out elevator 1 and rotated for driving.
Driving means two are connected with elevator 12 of pulling back, and driving means two are used to be driven back to draw elevator 12 to rotate.
On elevator 1 is stretched out, the assembly pulley 4 of the front end of basic arm 3 is crossed in other end winding to the one ends wound of first group of rope 2
Afterwards, it is fixed on the first segment telescopic arm 5 being embedded in basic arm 3；One end of second group of rope 6 is fixed on basic arm 3, separately
One ends wound is crossed after the assembly pulley 4 of the front end of first segment telescopic arm 5, is fixed on second section telescopic arm 8；The one of 3rd group of rope 7
End is fixed on first segment telescopic arm 5, and the other end is wrapped over after the assembly pulley 4 of the front end of second section telescopic arm 8, is fixed on Section three
On telescopic arm 9；Pull back rope 10 one end be fixed on Section of three telescopic arm 9, the other end is wrapped in pulls back on elevator 11；
When arm stretches out, rope closing length S of elevator 1 is stretched out, the assembly pulley 4 that first group of rope 2 passes through the front end of basic arm 3 drives the
The one section outreach S of telescopic arm 5, while the assembly pulley 4 of the front end of first segment telescopic arm 3 and the synchronous swinging radius of first segment telescopic arm 5
From S, i.e., relative to the outreach S of basic arm 3.Cannot move because one end of second group of rope 6 is fixed on basic arm 3, therefore
Second group of rope 6 drives the outreach 2S of second section telescopic arm 8, relative to first segment telescopic arm outreach 2S-S=S, in the same manner
3rd group of rope 7 drives Section of three outreach 3S of telescopic arm 9, relative to the outreach 3S-2S=S of second section telescopic arm 8, reaches
To the effect of synchronization telescope.Elevator 11 of now pulling back puts as needed rope length degree 3S.
When arm is retracted, pull back the rope closing length △ S of elevator 11, then now Section of three telescopic arm 9 is retracted relative to basic arm 3
Apart from △ S, it is assumed that now second section telescopic arm 8 relative to basic arm 3 retract distance be S1, and first segment telescopic arm 5 relative to
The distance of retracting of basic arm 3 is S2, then now stretch out elevator 1 and put rope length degree S2, and due to pulling back in now whole process, elevator 11 is
Directly strength then has all ropes to remain tensioning state in Section of three telescopic arm 9, and has below equation to set up：
S1=2*S2, formula（1）.
△ S-S2=S1, formula（2）.
Therefore S2=△ S/3 are obtained, S1=2* △ S/3.
Final first segment telescopic arm 5 retracts distance for △ S/3 relative to basic arm 3, and second section telescopic arm 8 is relative to first
Section telescopic arm 5 retracts distance for △ S/3, and Section of three telescopic arm 9 is △ S/3 relative to the retraction distance of second section telescopic arm 8, is reached
The effect of synchronization telescope.Now stretch out elevator 1 and put rope length degree △ S/3 as needed.
Equivalent to a multi-section type telescoping boom is formed between each joint arm of the synchronous telescoping mechanism of the present invention, because of the multi-joint telescoping
The synchronization of arm is protruded through stretches out the rope closing action that the rope closing of elevator 1 drives first group of rope 2, and the first segment for realizing arm stretches
Arm 5 is stretched out, and other telescopic arms are synchronously stretched out by the telescoping mechanism for arranging.In the same manner, because of the synchronization of the multi-joint telescoping arm
The rope closing action that the rope closing of elevator 11 of pulling back drives rope 10 of pulling back is retracted through, the N section telescopic arms 9 for realizing arm are retracted,
The telescoping mechanism that other telescopic arms pass through to arrange synchronously is retracted, it is achieved thereby that the present invention need not setting can in each section telescopic arm
Along the telescopic oil cylinder that arm cylinder bearing of trend stretches, the deadweight of each section telescopic arm is reduced, and due to setting in each section telescopic arm
Telescopic oil cylinder is put, the volume of each section telescopic arm is reduced, further reduce the deadweight of each section telescopic arm, so effectively reduced
The production cost of each section telescopic arm, improves the lifting performance using the crane for having synchronous telescoping mechanism of the present invention, and
The synchronous telescoping mechanism simple structure of the present invention, each section miscellaneous part such as telescopic arm and each elevator is easily installed, and also allows for dismounting
Transport, can reduce cost of transportation.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification this
The principle of invention, of the invention without departing from the spirit and scope of the present invention also to have various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent is defined.
Claims (7)
1. a kind of box arm synchronous telescoping mechanism, it is characterised in that：Stretch including elevator, elevator of pulling back, basic arm, N sections is stretched out
Contracting arm, N group ropes, rope of pulling back, driving means one and driving means two；
Basic arm is embedded with N section telescopic arms, and it is interior successively from outside to inside that N section telescopic arms save telescopic arm from first segment telescopic arm to N
It is embedding；
The front end of basic arm is provided with assembly pulley, and the front end that telescopic arm is saved from first segment telescopic arm to N-1 is respectively arranged with cunning
Wheel group；
Driving means one are connected with elevator is stretched out, and driving means two are connected with elevator of pulling back；
The one ends wound of first group of rope on elevator is stretched out, cross after the assembly pulley of basic arm front end, is fixed on by other end winding
It is embedded on the first segment telescopic arm in basic arm；
One end of second group of rope is fixed on basic arm, and the other end is wrapped over after the assembly pulley of first segment telescopic arm front end, Gu
It is scheduled on second section telescopic arm；The like, one end of N group ropes is fixed on N-2 section telescopic arms, and the other end is wrapped over
After the assembly pulley of N-1 section telescopic arms front end, it is fixed on N section telescopic arms；Pull back rope one end be fixed on N section telescopic arm
On, the other end is wrapped in pulls back on elevator；
Wherein：N is positive integer and N >=2.
2. a kind of box arm synchronous telescoping mechanism according to claim 1, it is characterised in that the basic arm relative to
Stretch out elevator position to fix.
3. a kind of box arm synchronous telescoping mechanism according to claim 1, it is characterised in that described to stretch out elevator and return
Draw elevator to be individual layer and hold rope elevator.
4. a kind of box arm synchronous telescoping mechanism according to claim 1, it is characterised in that the volume for stretching out elevator
Raise cylinder identical with the winding drum external diameter size of elevator of pulling back.
5. a kind of box arm synchronous telescoping mechanism according to claim 1, it is characterised in that the driving means one are
Motor or hydraulic motor.
6. a kind of box arm synchronous telescoping mechanism according to claim 1, it is characterised in that the driving means two are
Motor or hydraulic motor.
7. a kind of box arm synchronous telescoping mechanism according to claim 1, it is characterised in that the N is positive integer and N
≥3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610945727.6A CN106629427A (en) | 2016-11-02 | 2016-11-02 | Box-type suspension arm synchronous telescopic mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610945727.6A CN106629427A (en) | 2016-11-02 | 2016-11-02 | Box-type suspension arm synchronous telescopic mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106629427A true CN106629427A (en) | 2017-05-10 |
Family
ID=58820579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610945727.6A Pending CN106629427A (en) | 2016-11-02 | 2016-11-02 | Box-type suspension arm synchronous telescopic mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN106629427A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381335A (en) * | 2017-08-28 | 2017-11-24 | 共享装备股份有限公司 | The box telescopic arm of overhead and gantry cranes Hard link |
| CN109335974A (en) * | 2018-12-24 | 2019-02-15 | 陈奕松 | A telescopic boom and a crane |
| CN110967822A (en) * | 2019-11-13 | 2020-04-07 | 中国航天标准化研究所 | Industrial endoscope and telescopic arm device thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1269790B (en) * | 1966-11-11 | 1968-06-06 | Bilstein August Fa | Crane boom |
| CN201272660Y (en) * | 2008-07-10 | 2009-07-15 | 彭洪 | Tower frame of floor suspension-paving machine |
-
2016
- 2016-11-02 CN CN201610945727.6A patent/CN106629427A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1269790B (en) * | 1966-11-11 | 1968-06-06 | Bilstein August Fa | Crane boom |
| CN201272660Y (en) * | 2008-07-10 | 2009-07-15 | 彭洪 | Tower frame of floor suspension-paving machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381335A (en) * | 2017-08-28 | 2017-11-24 | 共享装备股份有限公司 | The box telescopic arm of overhead and gantry cranes Hard link |
| CN109335974A (en) * | 2018-12-24 | 2019-02-15 | 陈奕松 | A telescopic boom and a crane |
| CN109335974B (en) * | 2018-12-24 | 2025-01-07 | 陈奕松 | Telescopic boom and crane |
| CN110967822A (en) * | 2019-11-13 | 2020-04-07 | 中国航天标准化研究所 | Industrial endoscope and telescopic arm device thereof |
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Application publication date: 20170510 |
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