CN108639937B - A kind of recoiling device for flexible cable anti-interference positioning - Google Patents
A kind of recoiling device for flexible cable anti-interference positioning Download PDFInfo
- Publication number
- CN108639937B CN108639937B CN201810487454.4A CN201810487454A CN108639937B CN 108639937 B CN108639937 B CN 108639937B CN 201810487454 A CN201810487454 A CN 201810487454A CN 108639937 B CN108639937 B CN 108639937B
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- China
- Prior art keywords
- jet pipe
- steady rest
- radome fairing
- solenoid valve
- hoist cable
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- Expired - Fee Related
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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
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a kind of recoiling devices for flexible cable anti-interference positioning to pass through the monitoring real-time judge flexible cable state of industrial camera using crane as workbench；The air-flow of each jet pipe is adjusted by controlling the on-off of solenoid valve, adjusts the size and Orientation of recoil thrust, to adjust steady rest pose, realizes flexible cable anti-interference positioning.Industrial camera is located at below the cantilever end of crane, and radome fairing fastening is mounted on outside steady rest, and radome fairing is located at industrial camera within sweep of the eye；By monitoring the vision recognition mark of radome fairing upper surface, the position and posture of real-time judgment hoist cable end, to determine the action response of recoiling device.Gas source is fixed on the column top of crane, provides power source for recoiling device.Recoiling device structure for flexible cable anti-interference positioning is simple, stable and reliable in work, can be effectively reduced each to head-on windage, enhancing interference rejection ability；It can be applied to indoor and outdoor warehouse, operation in various working environments is hung in port and pier, boat-carrying sea.
Description
Technical field
The present invention relates to anti-sway and flexible cable field of locating technology is lifted, specifically, being related to a kind of for flexible cable anti-interference
The recoiling device of positioning.
Background technique
Existing hoisting and hanging industry, due to crane self structure, flexible hoist cable inevitably be will receive
The influence of inertia and external interference factor generates offset deviation so as to cause load and hoist is swung, and is influencing production efficiency
While will also result in some potential safety problems, ultimately cause serious economic loss.
In document " the efficient anti-swing control research of derrick crane " (mechanical and electronics, 06 phase in 2016,11-15 pages) text
In, it realizes that the real-time swing information of hanging object is fed back by sensor, it is straight to propose that a kind of cooperation frequency conversion trolley carries out pivot angle deviation
Connect the anti-swing control method that tracking is eliminated.This method is simple to mechanical design requirements, caused by because of factors such as wind-force, acceleration and deceleration
Shimmy have a certain effect, but control method is complicated, especially to establish accurate crane mathematical model be just able to achieve it is good
Weakening effect, and anti-sway low-response, the time that final load orientation needs are longer.
It is disclosed in Chinese patent CN 205442418U " a kind of crane connection structure ", including trolley frame and rigidity are prevented
Rocker is provided with the connecting rod machine for connecting trolley frame lower end and the anti-rocker upper end of rigidity in trolley frame lower end with the anti-rocker upper end of rigidity
Structure.Replace lifting flexible cable using the anti-rocker of rigidity, unfavorable impact offset by the swing of two oscillating bearings of connecting rod two end,
It can be effectively prevented the swing of anti-rocker, but small size inertia impact can only be offset, and the plumbness of anti-rocker can only be made
Constant, the position that not can guarantee load is accurate.
A kind of " crane antiswing device " is proposed in patent CN 205442418U, its main feature is that anti-using rigidity
Rocker replaces flexible hoist cable enhancing equipment rigidity to inhibit to swing, and suspender operates in inside anti-rocker, and it is anti-to hang ambilateral front and back
The anti-balance wheel of balance wheel and left and right and the anti-sway track of anti-rocker two sides cooperate, and constraining suspender with this will not shake in front and rear, left and right direction
It is dynamic, but the device has that structure is complicated, later maintenance maintenance work amount is big.
United States Patent (USP) US 9346656-B2 discloses a kind of " stabilization and control program of crane ", its main feature is that increasing
One group of auxiliary steel wire rope increases suspension rigidity, by the special winding of wirerope and three pulleys, to suspender and load
Apply an oblique pulling, to realize anti-swinging effect.But program structure is more complicated, reliability is not high, can only improve soft
For sex cords in the beat of tension direction, anti-sway effect is undesirable.
Summary of the invention
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of recoiling device for flexible cable anti-interference positioning.
The recoiling device structure is simple, stable and reliable in work and convenient for installation and maintenance, has position real-time monitoring and active accommodation pose
Function；The recoiling device can be effectively reduced each to head-on windage, enhancing interference rejection ability.
The technical solution adopted by the present invention to solve the technical problems is: including steady rest, tracheae, hoist cable, industrial camera,
Gas source, the first solenoid valve, second solenoid valve, third solenoid valve, the 4th solenoid valve, 1#Tee tube, 2#Tee tube and jet pipe, rectification
Cover, for crane as workbench, gas source is fixed on the column top of crane, and industrial camera is located under jib boom end
Side, the hoist cable of crane connect with steady rest, and suspender is mounted on steady rest in the following, radome fairing fastens is mounted on outside steady rest,
It is characterized in that the steady rest is hollow cylinder, both ends are equipped with the first mounting hole, the second mounting hole, on the outside of steady rest in wall
Between position have cylinder boss respectively up and down, two cylinder boss central axes are located along the same line and perpendicular to the axis of steady rest,
The blind hole of two cylinder boss has internal screw thread, is used as hoist cable interface and suspender installing port, on the outside of steady rest wall hoist cable interface with
It is provided with air inlet between second mounting hole, and is communicated with steady rest inner cavity, hoist cable interface central axes and air inlet axis parallel,
And central axes are perpendicular to steady rest axis；Tracheae is connected through a screw thread and seals with air inlet；
Described 1#Tee tube and described 2#Tee tube be the identical component of two structures, 1#Tee tube Single port and steady rest
The first mounting hole be threadedly coupled, 1#The another two port of tee tube passes through the first electromagnetism with the first jet pipe, the second jet pipe respectively
Valve, second solenoid valve are connected as gas outlet, and 2#Tee tube Single port and the second mounting hole of steady rest are cooperatively connected, and 2#Tee tube
Another two port is connected respectively with third jet pipe, the 4th jet pipe by third solenoid valve, the 4th solenoid valve as gas outlet, the same end
Gas outlet axis perpendicular, and the axisymmetrical relative to air inlet is generally aligned in the same plane, by control the on-off of solenoid valve come
The air-flow of each jet pipe is adjusted, the size and Orientation of recoil thrust is adjusted, to adjust steady rest pose, realizes flexible cable anti-interference positioning；
The jet pipe includes the first jet pipe, the second jet pipe, third jet pipe, the 4th jet pipe, and each jet pipe is that structure is identical
There are an internal screw thread in isentropic nozzle, jet pipe one end, and internal channel is shrinkage expansion type, nozzle throat area as follows:
Wherein: AeFor constant entropy spout outlet area；MeFor the Mach number of constant entropy spout outlet air-flow
ptIt is adiabatic exponent of air for bleed pressure γ.
The radome fairing includes top radome fairing, lower part radome fairing, the structure difference of top radome fairing and lower part radome fairing
It is shuttle-type after symmetrical fastening installation, there are four symmetrical for circumferential edge joint from circumferential edge to central axis in streamlined protrusion
Gas outlet and nozzle hole cooperate.
The tracheae of the gas source is connected by motor capstan winch along jib boom, hoist cable, tracheae end and steady rest, is anti-
Flushing device provides power source.
The industrial camera is located at below the cantilever end of crane, and radome fairing fastening is mounted on outside steady rest, and is rectified
Cover is located at industrial camera within sweep of the eye, and by monitoring the vision recognition mark of radome fairing upper surface, real-time judgment steady rest is whole
The position and posture of body, to determine the action response of recoiling device.
Beneficial effect
A kind of recoiling device for flexible cable anti-interference positioning proposed by the present invention, passes through the monitoring real-time judge of industrial camera
Flexible cable state is sprayed, the recoil of generation if beat occurs for flexible cable using two nozzle gas flows in four jet pipes of solenoid valve control
Resultant force or the moment of couple come ensure flexible cable offset interference, be accurately positioned.Under general operating condition, taking source gas temperature is 24 Celsius
Degree, bleed pressure pt=0.6MPa, adiabatic exponent of air γ=1.4, gas constant take R=287J/Kg/K, then nozzle throat with
The ratio between discharge area is 0.48；When nozzle exit diameter is 14mm, throat diameter 9.7mm.Taking nozzle efficiency is 0.95, then
The recoil thrust that single jet pipe generates is 105N, and it is two jet pipe effects that the recoiling device adjusts every time, and recoil resultant force is
Single jet pipe effectTimes, the wind-force of 4 grades of sea situations can be offset, the bad interference being avoided that under most of working environment.Dress
Set it is external fasten streamlined radome fairing, can be effectively reduced each to head-on windage, further enhance interference rejection ability.It can be applied to vehicle
Between, indoor and outdoor warehouse, port and pier, boat-carrying sea hang in various working environments.
The present invention is used for the recoiling device of flexible cable anti-interference positioning, since jet pipe is arranged in flexible cable end, greatly enhances soft
Rope rigidity；Gas source supplies high-speed flow, and jet-stream wind flow velocity can generally reach supersonic speed, realize the quick positioning of flexible cable, overcome
The slow problem of existing antiswing device frequency response.
Recoiling device structure of the present invention for flexible cable anti-interference positioning is simple, and components are few, reliable and stable work, installation dimension
Shield is convenient, can be applied to different workbenches, such as a variety of different workbenches of gantry crane, derrick crane, and
Work efficiency is high, reduces security risk.
Detailed description of the invention
Make with reference to the accompanying drawing with the embodiment recoiling device for flexible cable anti-interference positioning a kind of to the present invention further
It is described in detail.
Fig. 1 is recoiling device installation position schematic diagram of the present invention for flexible cable anti-interference positioning.
Fig. 2 is recoiling device schematic diagram of the present invention for flexible cable anti-interference positioning.
Fig. 3 is that recoiling device of the present invention for flexible cable anti-interference positioning has radome fairing axonometric drawing.
Fig. 4 is that recoiling device of the present invention for flexible cable anti-interference positioning has radome fairing schematic diagram.
Fig. 5 is the side view that the present invention has radome fairing for the recoiling device of flexible cable anti-interference positioning.
Fig. 6 is the steady rest axonometric drawing of recoiling device of the present invention.
Fig. 7 a, Fig. 7 b are the steady rest left view and cross-sectional view of recoiling device of the present invention.
Fig. 8 is the jet pipe schematic diagram of recoiling device of the present invention.
Fig. 9 a, Fig. 9 b are the jet pipe main view and cross-sectional view of recoiling device of the present invention.
In figure:
1. 7. first jet pipe of suspender 2. tracheae, 3. hoist cable, 4. industrial camera, 5. gas source, 6. crane, 8. first electromagnetism
9. second jet pipe of valve, 10. second solenoid valve 11.1#12. steady rest of tee tube, 13. third jet pipe, 14. third solenoid valve
15. the 4th jet pipe 17.2 of the 4th solenoid valve 16.#The installation of 18. top radome fairing of tee tube, 19. lower part radome fairing 20. first
21. hoist cable interface of hole, 22. 23. second mounting hole of air inlet, 24. suspender installing port
A vision recognition mark B vision recognition mark C vision recognition mark
Specific embodiment
The present embodiment is a kind of recoiling device for flexible cable anti-interference positioning.
Refering to fig. 1~Fig. 9 a, Fig. 9 b, the present embodiment is used for the recoiling device of flexible cable anti-interference positioning, by steady rest 12, tracheae
2, hoist cable 3, industrial camera 4, gas source 5, the first solenoid valve 8, second solenoid valve 10, third solenoid valve 14, the 4th solenoid valve 15,1#
Tee tube 11,2#Tee tube 17 and jet pipe, radome fairing composition；Crane 6 is used as workbench, and gas source 5 is fixed on crane
Column top, industrial camera 4 are located at below jib boom end, and the hoist cable 3 of crane is connect with steady rest 12, and suspender 1 is installed
In steady rest 12 in the following, radome fairing fastening is mounted on outside steady rest 12.Wherein, steady rest 12 is hollow cylinder, and both ends are set
There are the first mounting hole 20, the second mounting hole 23, there is cylinder boss at position respectively up and down among 12 outside wall of steady rest, and two cylinders are convex
Platform central axes are located along the same line and perpendicular to the central axes of steady rest 12, and the blind hole of two cylinder boss has internal screw thread, is used to
As hoist cable interface 21 and suspender installing port 24.It is machined between 12 outside wall hoist cable interface 21 of steady rest and the second mounting hole 23
Air inlet 22, and communicated with the inner cavity of steady rest 12.21 central axes of hoist cable interface and 22 axis parallel of air inlet, and axis
Line is perpendicular to steady rest axis.1#Tee tube 11,2#Tee tube 17 is pacified with first mounting hole 20, second at steady rest both ends respectively
It fills hole 23 to be threadedly coupled, tracheae 2 is connected through a screw thread and seals with air inlet 22.The tracheae of gas source 5 is risen by motor capstan winch edge
Heavy-duty machine cantilever, hoist cable 3,2 end of tracheae and steady rest are connected, and provide power source for recoiling device.
1#Tee tube 11 and 2#Tee tube 17 be the identical component of two structures, 1#11 Single port of tee tube and steady rest 12
The first mounting hole 21 be threadedly coupled, 1#The another two port of tee tube 11 passes through the with the first jet pipe 7, the second jet pipe 9 respectively
One solenoid valve 8, second solenoid valve 10 are connected as gas outlet.2#17 Single port of tee tube is matched with 12 second mounting hole 23 of steady rest
It closes and connects, 2#The another two port of tee tube 17 passes through third solenoid valve the 14, the 4th with third jet pipe 13, the 4th jet pipe 16 respectively
Solenoid valve 15 is connected as gas outlet.The same end gas outlet axis perpendicular, and relative to the axisymmetrical of air inlet positioned at same
Plane；The air-flow of each jet pipe is adjusted by controlling the on-off of solenoid valve, adjusts the size and Orientation of recoil thrust, it is steady to adjust
Determine frame pose, realizes flexible cable anti-interference positioning.
Jet pipe includes the first jet pipe 7, the second jet pipe 9, third jet pipe 13, the 4th jet pipe 16, and each jet pipe is that structure is identical
Isentropic nozzle, there is an internal screw thread in jet pipe one end, and internal channel is shrinkage expansion type, nozzle throat area as follows:
Wherein: AeFor constant entropy spout outlet area；MeFor the Mach number of constant entropy spout outlet air-flow
ptIt is adiabatic exponent of air for bleed pressure γ.
Radome fairing includes top radome fairing 18, lower part radome fairing 19, and top radome fairing and lower part dome structure are by circumferential direction
Edge, in streamlined protrusion, is shuttle-type after symmetrical fastening installation, there are four symmetrical gas outlets for circumferential edge joint to central axis
Cooperate with nozzle hole.Tri- vision recognition marks of A, B, C are posted in radome fairing 18 upper surface in top, and industrial camera 4 is inversely installed
Jib boom end lower surface, guarantee top radome fairing 18 always its within sweep of the eye, industrial camera 4 can monitor
Tri- vision recognition marks of A, B, C that portion radome fairing upper surface is pasted, by the visual identity mark for monitoring radome fairing upper surface
Will, the position and posture of real-time judgment steady rest entirety, to determine the action response of recoiling device.
Recoiling device direction definition in the present embodiment application: using the axis direction of hoist cable interface 21 as Z axis positive direction, suspender
The axis direction of installing port 24 is Z axis negative direction.When crane 6 works, industrial camera 4 monitors radome fairing upper surface in real time
A, the position of tri- vision recognition marks of B, C, determine 3 end of hoist cable position and posture, and with preset operating position into
Row compares, if deflecting under interference, controls jet pipe according to different situations and makes different response actions:
(1) when detection position is identical as operating position, hoist cable is without beat, then the first solenoid valve 8, second solenoid valve 10, the
Three solenoid valves 14 and the 4th solenoid valve 15 are closed；First jet pipe 7, the second jet pipe 9, third jet pipe 13 and the equal nothing of the 4th jet pipe 16
Air-flow sprays.
(2) when detecting hoist cable 3 to X-axis positive direction beat, the first solenoid valve 8 and second is controlled according to bias contribution
The folding of solenoid valve 10, to adjust the first jet pipe 7 and the second jet pipe 9 ejection high-speed flow and the two is made to be applied to hoist cable 3 greatly
Small equal, direction vertical symmetry recoil thrust, makes hoist cable 3 rapidly return back to operating position, Zhi Hou under two power collective effects
One solenoid valve 8 and second solenoid valve 10 are closed, this adjustment movement is completed.
(3) when detecting hoist cable 3 to X-axis negative direction beat, third solenoid valve 14 and the 4th is controlled according to bias contribution
The folding of solenoid valve 15, to adjust third jet pipe 13 and the 4th jet pipe 16 ejection high-speed flow and the two is made to be applied to hoist cable 3
Equal in magnitude, direction vertical symmetry recoil thrust makes hoist cable 3 rapidly return back to operating position in the effect of two power, later third electricity
Magnet valve 14 and the 4th solenoid valve 15 are closed, this adjustment movement is completed.
(4) when detecting hoist cable 3 to Y-axis positive direction beat, the first solenoid valve 8 and the 4th is controlled according to bias contribution
The folding of solenoid valve 15, to adjust the first jet pipe 7 and the 4th jet pipe 16 ejection high-speed flow and the two is made to be applied to hoist cable 3 greatly
Small equal, direction vertical symmetry recoil thrust, makes hoist cable 3 rapidly return back to operating position in two power collective effects, and later first
Solenoid valve 8 and the 4th solenoid valve 15 are closed, this adjustment movement is completed.
(5) when detecting hoist cable 3 to Y-axis negative direction beat, second solenoid valve 10 and third are controlled according to bias contribution
The folding of solenoid valve 14, to adjust the second jet pipe 9 and the ejection high-speed flow of third jet pipe 13 and the two is made to be applied to hoist cable 3 greatly
Small equal, direction vertical symmetry recoil thrust makes hoist cable 3 rapidly return back to operating position under the effect of two power, later the second electricity
Magnet valve 10 and third solenoid valve 14 are closed, this adjustment movement is completed.
(6) when detecting that hoist cable 3 reverses clockwise along Z axis positive direction, second solenoid valve 10 is controlled according to bias contribution
With the folding of the 4th solenoid valve 15, it is applied to adjust the second jet pipe 9 and the 4th jet pipe 16 and both spray high-speed flow and make
3 one, hoist cable recoil couples counterclockwise away from, make hoist cable 3 the moment of couple effect under rapidly return back to operating position, later second electricity
Magnet valve 10 and the 4th solenoid valve 15 are closed, this adjustment movement is completed.
(7) when detecting that hoist cable 3 reverses counterclockwise along Z axis positive direction, 8 He of the first solenoid valve is controlled according to bias contribution
The folding of third solenoid valve 14 is hung to adjust the first jet pipe 7 and the ejection high-speed flow of third jet pipe 13 and be applied to the two
3 one, rope clockwise recoil couples are away from making hoist cable 3 rapidly return back to operating position under moment of couple effect, the first electromagnetism later
Valve 8 and third solenoid valve 14 are closed, this adjustment movement is completed.
Claims (4)
1. a kind of recoiling device for hoist cable anti-interference positioning, including steady rest, tracheae, hoist cable, industrial camera, gas source, first
Solenoid valve, second solenoid valve, third solenoid valve, the 4th solenoid valve, 1#Tee tube, 2#Tee tube and jet pipe, radome fairing, crane
As workbench, gas source is fixed on the column top of crane, and industrial camera is located at below jib boom end, crane
Hoist cable is connect with steady rest, and suspender is mounted on steady rest in the following, radome fairing fastening is mounted on outside steady rest, it is characterised in that:
The steady rest is hollow cylinder, and both ends are equipped with the first mounting hole, the second mounting hole, among steady rest lateral wall above and below position
There is cylinder boss respectively, two cylinder boss central axes are located along the same line and perpendicular to the axis of steady rest, two cylinder boss
Blind hole have internal screw thread, be used as hoist cable interface and suspender installing port, steady rest lateral wall hoist cable interface and the second mounting hole
Between be provided with air inlet, and communicated with steady rest inner cavity, hoist cable interface central axes and air inlet axis parallel, and central axes are hung down
Directly in steady rest axis；Tracheae is connected through a screw thread and seals with air inlet；
Described 1#Tee tube and described 2#Tee tube be the identical component of two structures, 1#The of tee tube Single port and steady rest
One mounting hole is threadedly coupled, and 1#The another two port of tee tube passes through the first solenoid valve, the with the first jet pipe, the second jet pipe respectively
Two solenoid valves are connected as gas outlet, and 2#Second mounting hole of tee tube Single port and steady rest is cooperatively connected, and 2#Another the two of tee tube
A port is connected respectively with third jet pipe, the 4th jet pipe by third solenoid valve, the 4th solenoid valve as gas outlet, the same end outlet
Mouth axis perpendicular, and the axisymmetrical relative to air inlet is generally aligned in the same plane, and is adjusted by controlling the on-off of solenoid valve
The air-flow of each jet pipe adjusts the size and Orientation of recoil thrust, to adjust steady rest pose, realizes hoist cable anti-interference positioning；
The jet pipe includes the first jet pipe, the second jet pipe, third jet pipe, the 4th jet pipe, and each jet pipe is the identical constant entropy of structure
There are an internal screw thread in jet pipe, jet pipe one end, and internal channel is shrinkage expansion type, nozzle throat area as follows:
Wherein: AeFor constant entropy spout outlet area；MeFor the Mach number of constant entropy spout outlet air-flow
PtFor bleed pressure；PeFor environmental pressure；γ is adiabatic exponent of air.
2. the recoiling device according to claim 1 for hoist cable anti-interference positioning, it is characterised in that: the radome fairing includes
The structure of top radome fairing, lower part radome fairing, top radome fairing and lower part radome fairing is respectively from circumferential edge to central axis in stream
Linear protrusion is shuttle-type after symmetrical fastening installation, and there are four symmetrical gas outlets and nozzle hole cooperation for circumferential edge joint.
3. the recoiling device according to claim 1 for hoist cable anti-interference positioning, it is characterised in that: the tracheae of the gas source
It is arranged by motor capstan winch along jib boom, hoist cable, tracheae end and steady rest are connected, and provide power source for recoiling device.
4. the recoiling device according to claim 1 for hoist cable anti-interference positioning, it is characterised in that: the industrial camera position
Below the cantilever end of crane, radome fairing fastening is mounted on outside steady rest, and radome fairing is located at industrial camera field range
It is interior, by monitoring the vision recognition mark of radome fairing upper surface, the position and posture of real-time judgment steady rest entirety, to determine anti-
The action response of flushing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810487454.4A CN108639937B (en) | 2018-05-21 | 2018-05-21 | A kind of recoiling device for flexible cable anti-interference positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810487454.4A CN108639937B (en) | 2018-05-21 | 2018-05-21 | A kind of recoiling device for flexible cable anti-interference positioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108639937A CN108639937A (en) | 2018-10-12 |
| CN108639937B true CN108639937B (en) | 2019-07-05 |
Family
ID=63757015
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810487454.4A Expired - Fee Related CN108639937B (en) | 2018-05-21 | 2018-05-21 | A kind of recoiling device for flexible cable anti-interference positioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108639937B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054752A (en) * | 1990-03-02 | 1991-09-25 | 章大章 | Electric antishake device for container's crane |
| US5273333A (en) * | 1993-02-22 | 1993-12-28 | Columbia Helicopters, Inc. | Load hook assembly for multiple loads and method of load transport |
| WO1996026107A1 (en) * | 1995-02-06 | 1996-08-29 | Cox Donald P | Methods and apparatus for selectively attaching and releasing multiple payloads suspended from an aircraft |
| CN202098976U (en) * | 2011-05-10 | 2012-01-04 | 中交第二航务工程局有限公司 | Device capable of freely adjusting sling length and overhead transverse posture of part |
-
2018
- 2018-05-21 CN CN201810487454.4A patent/CN108639937B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054752A (en) * | 1990-03-02 | 1991-09-25 | 章大章 | Electric antishake device for container's crane |
| US5273333A (en) * | 1993-02-22 | 1993-12-28 | Columbia Helicopters, Inc. | Load hook assembly for multiple loads and method of load transport |
| WO1996026107A1 (en) * | 1995-02-06 | 1996-08-29 | Cox Donald P | Methods and apparatus for selectively attaching and releasing multiple payloads suspended from an aircraft |
| CN202098976U (en) * | 2011-05-10 | 2012-01-04 | 中交第二航务工程局有限公司 | Device capable of freely adjusting sling length and overhead transverse posture of part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108639937A (en) | 2018-10-12 |
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