CN107601294A - Gantry and lifting unit - Google Patents
Gantry and lifting unit Download PDFInfo
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- CN107601294A CN107601294A CN201711097760.9A CN201711097760A CN107601294A CN 107601294 A CN107601294 A CN 107601294A CN 201711097760 A CN201711097760 A CN 201711097760A CN 107601294 A CN107601294 A CN 107601294A
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- pulley
- suspender
- actuating unit
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Abstract
The invention discloses a kind of gantry and lifting unit, to solve the low technical problem of the safety in utilization of the crane of correlation technique offer.The gantry includes actuating unit and the chaining part being arranged on the suspender of crane, and actuating unit includes two drive components being oppositely arranged, and between two drive components, two drive components are connected suspender with chaining part.
Description
Technical field
The present invention relates to technical field of engineering machinery, more particularly to a kind of gantry and lifting unit.
Background technology
Rubber tyre gantry crane generally comprises door frame, dolly and suspender, is provided with the top of door frame along door frame width
The slideway of extension, dolly are located on slideway and can moved along slideway, and suspender, which is hung, to be located at below dolly and can be synchronous with dolly
Motion, while suspender can rise or fall.
Correlation technique provides a kind of crane, and the crane also includes cable drum drive mechanism, the drive mechanism
Including reel, steel wire rope, assembly pulley peace rotation mechanism, wherein, reel is rotatablely connected with door frame, and pulley is arranged on suspender, is put down
Rotation mechanism is connected with dolly, the one ends wound of steel wire rope on reel, the other end of steel wire rope bypass after pulley with flat turn mechanism
Connection, it can control steel wire rope to tighten up or loosen when reel rotates relative to door frame, control suspender to rise or fall with this.
The suspender of above-mentioned crane has 4 control points, and pulley is located on the control point, the drive mechanism number of crane
Corresponding with the number at control point, reel, steel wire rope, pulley and control point connect one to one, in this way, a reel controls one
Control point, reel are driven by motor, if any node of motor to the whole piece driving-chain of pulley goes wrong, then corresponding control
System point loses normal control, and the corresponding control point loses proper engagement with other control points, causes suspender sidesway or side to turn, enters
And cause security incident.
The content of the invention
It is an object of the invention to provide a kind of gantry, is pacified with solving the use of the crane of correlation technique offer
The low technical problem of full property.
The present invention provides a kind of gantry, and the gantry includes actuating unit and is arranged on the crane
Chaining part on suspender;
The actuating unit includes two drive components being oppositely arranged, the suspender positioned at two drive components it
Between, two drive components are connected with the chaining part.
Further, including two actuating units and two chaining parts, two chaining parts are respectively
One chaining part and the second chaining part;
Two drive components in one of them described actuating unit are connected with first chaining part, another
Two drive components in the actuating unit are connected with second chaining part.
Further, including two actuating units and two chaining parts;
Two drive components in one of them described actuating unit connect one to one with two chaining parts,
Two drive components in another described actuating unit connect one to one with two chaining parts.
Further, width of two drive components along the suspender is oppositely arranged, and the chaining part is located at
One end of the length direction of the suspender;
The actuating unit also includes two the first transmission components, the first end of two first transmission components with two
The drive component is connected one to one, and the second end of two first transmission components is connected with the chaining part.
Further, the chaining part is suspender pulley, and first transmission component includes being arranged on the crane
Door frame pulley on door frame and first level pulley, the first upright pulley being arranged on the dolly of the crane, and
Driving rope;
The first end of the driving rope is connected with the drive component, and the second end of the driving rope bypasses the door successively
It is fixedly connected after frame pulley, the first level pulley, the first upright pulley and the suspender pulley with the dolly.
Further, including two chaining parts, two drive components and two chaining parts are along described
The width of suspender is oppositely arranged;
The actuating unit also includes two the second transmission components, the first end of two second transmission components with two
The drive component connects one to one, and the second end of two second transmission components corresponds with two chaining parts
Connection.
Further, the chaining part is suspender pulley, and second transmission component includes being arranged on the crane
Door frame pulley on door frame and the second horizontal trolley, the second upright pulley being arranged on the dolly of the crane, and
Driving rope;
The first end of the driving rope is connected with the drive component, and the second end of the driving rope bypasses the door successively
It is fixedly connected after frame pulley, second horizontal trolley, the second upright pulley and the suspender pulley with the dolly.
Further, the drive component includes frequency converter, motor and the reel being sequentially connected, the reel and the chain
Fitting connects.
Further, the drivers' cab of the crane is arranged on the saddle beam of the crane.
Gantry provided by the invention includes actuating unit and the chaining part being arranged on the suspender of crane, its
In, actuating unit includes two drive components being oppositely arranged, and for suspender between two drive components, two drive components are equal
It is connected with chaining part, in this way, suspender is connected by chaining part with two drive components, a control point of suspender can link two
Drive component, the driving of two drive components is separate, if a certain driving node of one of drive component is asked
The driving failure of topic, the then corresponding drive component, and another drive component is unaffected, the Control point of suspender can be protected
Normal operation is held, the Control point keeps normal with other control points and coordinated, and sidesway will not occur for suspender or side turns, with this
Ensure the safe to use of suspender.
Another object of the present invention, which also resides in, provides a kind of lifting unit, and the lifting unit includes track and at least two such as
Upper described gantry;
Length direction of at least two gantries along the track is arranged at intervals successively.
Beneficial effect of the lifting unit provided by the invention compared to prior art and gantry provided by the invention
Identical compared to the beneficial effect of prior art, here is omitted.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the first schematic diagram of gantry according to embodiments of the present invention;
Fig. 2 is the second schematic diagram of gantry according to embodiments of the present invention;
Fig. 3 is Fig. 2 top view;
Fig. 4 is Fig. 2 right view.
In figure:
10- suspenders;20- door frames;30- dollies;40- saddle beams;50- reels;The drive components of 01- first;02-
Two drive components;The transmission components of 03- first;The transmission components of 04- second;05- door frame pulleys;06- first level pulleys;
The first upright pulleys of 07-;The horizontal trolleys of 08- second;The second upright pulleys of 09-;100- the first suspender pulleys;200-
Two suspender pulleys;The suspender pulleys of 300- the 3rd;The suspender pulleys of 400- the 4th;The actuating units of 500- first;600- second is dynamic
Force mechanisms.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can
To be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Fig. 1 is the first schematic diagram of gantry according to embodiments of the present invention, and Fig. 2 is according to embodiments of the present invention
Second schematic diagram of gantry, Fig. 3 are Fig. 2 top views, and Fig. 4 is Fig. 2 right view.
Referring to figs. 1 to shown in Fig. 4, gantry provided in an embodiment of the present invention includes actuating unit and is arranged on lifting
Chaining part on the suspender 10 of machine, actuating unit include two drive components being oppositely arranged, and two drive components are respectively the
One drive component 01 and the second drive component 02, suspender 10 is between the first drive component 01 and the second drive component 02, and
One drive component 01 and the second drive component 02 are connected with chaining part.
In this way, suspender is connected by chaining part with two drive components, a control point of suspender links two driving groups
Part, the driving of two drive components is separate, if a certain driving node of one of drive component goes wrong, then should
The driving failure of corresponding drive component, and another drive component is unaffected, the Control point of suspender can keep normal
Operation, the Control point keep normal with other control points and coordinated, and sidesway will not occur for suspender or side turns, and ensure to hang with this
What is had is safe to use.
Also, a control point of suspender links two drive components, the power of each drive component halves during driving, rises
Requirement of the heavy-duty machine to drive component is low, beneficial to reducing cost.
In the present embodiment, the suspender of gantry is rectangular parallelepiped structure, and suspender includes relative along the length direction of suspender
The first end of setting and the second end, and width the 3rd end and the 4th end that are oppositely arranged along suspender, the first of suspender
End, the second end, the center at the 3rd end and the 4th end are provided with a control point.
Chaining part is suspender pulley, and suspender is provided with four chaining parts, i.e., is slided provided with four suspender pulleys, four suspenders
Wheel is corresponded with four control points and set, four suspender pulleys be respectively the first suspender pulley 100, the second suspender pulley 200,
3rd suspender pulley 300 and the 4th suspender pulley 400, wherein, the first suspender pulley 100 and the second suspender pulley 200 are along suspender
The center line of 10 length direction is oppositely arranged, the width side of the 3rd suspender pulley 300 and the 4th suspender pulley 400 along suspender 10
To center line be oppositely arranged.Wherein, the first suspender pulley, the second suspender pulley, the 3rd suspender pulley and the 4th suspender pulley
Formed by two pulleys being coaxially disposed.
In the present embodiment, gantry includes two actuating units, respectively the first actuating unit 500 and the second power
Mechanism 600, the length direction of the first actuating unit 500 and the second actuating unit 600 along suspender 10 are oppositely arranged, wherein, first
The width of the first end of the first drive component 01 and the second drive component 02 along suspender 10 in actuating unit 500 is relative to be set
Put, the width side of the first drive component 01 and the second drive component 02 along the second end of suspender 10 in the second actuating unit 600
To being oppositely arranged.
In the present embodiment, for the first actuating unit 500 and the second actuating unit 600, the He of the first actuating unit 500
Two the first drive components 01 of the second actuating unit 600 include frequency converter, motor and the reel 50 being sequentially connected, and first is dynamic
Two the second drive components 02 of the actuating unit 600 of force mechanisms 500 and second include frequency converter, motor and the volume being sequentially connected
Cylinder 50.
Wherein, four frequency converters of the first actuating unit and the second actuating unit are connected with PLC, the first power
The first drive component and the second drive component in mechanism are connected with the first suspender pulley, and first in the second actuating unit drives
Dynamic component and the second drive component are connected with the second suspender pulley, and PLC is entered by four frequency converters to four motors
The corresponding control of row, in use, electric Differential Control is carried out to four motors by PLC, so that four motors are realized just
Turn, reversion and differential operation, so cause suspender realize rise, decline, plane rotation and the operation such as vert, without setting such as
Electric oil cylinder or hydraulic jack wait servicing unit to realize the plane rotation of suspender and vert.
For the first actuating unit, in the present embodiment, the first actuating unit 500 also includes two the first transmission components
03 and two the second transmission components 04.Wherein, the first end of two the first transmission components 03 and the first drive component 01 and second
Drive component 02 is connected one to one, and the second end of two the first transmission components 03 is connected with the first suspender pulley 100.Its
In, the first end of two the second transmission components 04 connects one to one with the first drive component 01 and the second drive component 02, and two
Second end of individual second transmission component 04 connects one to one with the 3rd suspender pulley 300 and the 4th suspender pulley 400.
First transmission component 03 includes the door frame pulley 05 being arranged on the door frame 20 of crane and is arranged at crane
Dolly 30 on first level pulley 06, the first upright pulley 07, and driving rope.Wherein, one of them first transmission group
The first end of the driving rope of part 03 is connected with the first drive component 01, the second end of the driving rope bypass successively door frame pulley 05,
It is fixedly connected after first level pulley 06, the first upright suspender pulley 100 of pulley 07 and first with dolly 30.Another first biography
The first end of the driving rope of dynamic component 03 is connected with the second drive component 02, and the second end of the driving rope bypasses door frame pulley successively
05th, it is fixedly connected after first level pulley 06, the first upright suspender pulley 100 of pulley 07 and first with dolly 30.
First suspender pulley is made up of two pulleys being coaxially disposed, therefore, the driving of one of them the first transmission component
The first end of rope and a solderless wrapped connection in two pulleys being coaxially disposed, the first end of the driving rope of another the first transmission component
With another solderless wrapped connection in two pulleys being coaxially disposed, in order to avoid the driving rope of two the first transmission components is in the first suspender pulley
On interfere.
Second transmission component 04 includes the door frame pulley 05 being arranged on the door frame 20 of crane and is arranged at crane
Dolly 30 on the second horizontal trolley 08, the second upright pulley 09, and driving rope.Wherein, one of them second transmission group
The first end of the driving rope of part 04 is connected with the first drive component 01, the second end of the driving rope bypass successively door frame pulley 05,
It is fixedly connected after second horizontal trolley 08, the second upright suspender pulley 300 of pulley 09 and the 3rd with dolly 30.Another second biography
The first end of the driving rope of dynamic component 04 is connected with the second drive component 02, and the second end of the driving rope bypasses door frame pulley successively
05th, it is fixedly connected after the second horizontal trolley 08, the second upright suspender pulley 400 of pulley 09 and the 4th with dolly 30.
For the second actuating unit, in the present embodiment, the second actuating unit 600 also includes two the first transmission components
03 and two the second transmission components 04.Wherein, the first end of two the first transmission components 03 and the first drive component 01 and second
Drive component 02 is connected one to one, and the second end of two the first transmission components 03 is connected with the second suspender pulley 200.Its
In, the first end of two the second transmission components 04 connects one to one with the first drive component 01 and the second drive component 02, and two
Second end of individual second transmission component 04 connects one to one with the 3rd suspender pulley 300 and the 4th suspender pulley 400.
First transmission component 03 includes the door frame pulley 05 being arranged on the door frame 20 of crane and is arranged at crane
Dolly 30 on first level pulley 06, the first upright pulley 07, and driving rope.Wherein, one of them first transmission group
The first end of the driving rope of part 03 is connected with the first drive component 01, the second end of the driving rope bypass successively door frame pulley 05,
It is fixedly connected after first level pulley 06, the first upright suspender pulley 200 of pulley 07 and second with dolly 30.Another first biography
The first end of the driving rope of dynamic component 03 is connected with the second drive component 02, and the second end of the driving rope bypasses door frame pulley successively
05th, it is fixedly connected after first level pulley 06, the first upright suspender pulley 200 of pulley 07 and second with dolly 30.
Second suspender pulley is made up of two pulleys being coaxially disposed, therefore, the driving of one of them the first transmission component
The first end of rope and a solderless wrapped connection in two pulleys being coaxially disposed, the first end of the driving rope of another the first transmission component
With another solderless wrapped connection in two pulleys being coaxially disposed, in order to avoid the driving rope of two the first transmission components is in the second suspender pulley
On interfere.
Second transmission component 04 includes the door frame pulley 05 being arranged on the door frame 20 of crane and is arranged at crane
Dolly 30 on the second horizontal trolley 08, the second upright pulley 09, and driving rope.Wherein, one of them second transmission group
The first end of the driving rope of part 04 is connected with the first drive component 01, the second end of the driving rope bypass successively door frame pulley 05,
It is fixedly connected after second horizontal trolley 08, the second upright suspender pulley 300 of pulley 09 and the 3rd with dolly 30.Another second biography
The first end of the driving rope of dynamic component 04 is connected with the second drive component 02, and the second end of the driving rope bypasses door frame pulley successively
05th, it is fixedly connected after the second horizontal trolley 08, the second upright suspender pulley 400 of pulley 09 and the 4th with dolly 30.
From the foregoing, it will be observed that in the first actuating unit 500 and the second actuating unit 600, two positioned at the same side of suspender 10
Second end of the driving rope of two transmission components 04 is coaxially set with the solderless wrapped connection of the 3rd suspender pulley 300, the 3rd suspender pulley by two
The pulley put is formed, therefore, in the second end and two pulleys being coaxially disposed of the driving rope of one of them the second transmission component
A solderless wrapped connection, the second end of the driving rope of another the second transmission component with two pulleys being coaxially disposed another around
Connect, in case the driving rope of two the second transmission components interferes on the 3rd suspender pulley.
Similarly, in the first actuating unit 500 and the second actuating unit 600, positioned at two second biographies of the opposite side of suspender 10
Second end of the driving rope of dynamic component 04 with the solderless wrapped connection of the 4th suspender pulley 400, what the 4th suspender pulley was coaxially disposed by two
Pulley is formed, therefore, the second end of the driving rope of one of them the second transmission component and one in two pulleys being coaxially disposed
Individual solderless wrapped connection, the second end of the driving rope of another the second transmission component and another solderless wrapped connection in two pulleys being coaxially disposed,
In order to avoid the driving rope of two the second transmission components interferes on the 4th suspender pulley.
In the present embodiment, for two first transmission components 03 of the same side of the door frame 20 positioned at crane, two
Width of the two first level pulleys 06 of individual first transmission component 03 along door frame back timber is oppositely arranged, two first transmissions
Width of two the first upright pulleys 07 of component 03 along door frame back timber is oppositely arranged, also, two the first upright pulleys
07 positioned at the outside of two first level pulleys 06.
For two second transmission components 04 of the same side of the door frame 20 positioned at crane, two the second transmission groups
Width of two the second horizontal trolleys 08 of part 04 along the back timber of door frame 20 is oppositely arranged, and the two of two the second transmission components 04
Width of the individual second upright pulley 09 along the back timber of door frame 20 is oppositely arranged, also, two the second upright pulleys 09 are located at two
The outside of individual second horizontal trolley 08.
Wherein, two the second horizontal trolleys 08 are positioned at the inner side of two first level pulleys 06.
Wherein, one group two-by-two of 8 door frame pulleys 05, every group of door frame pulley are correspondingly arranged on four angles of door frame back timber.
The crane that the present embodiment provides, using electrical differential technology, the driving of suspender and dolly is decomposed into by driving group
Independent four travelling mechanism that part and transmission component are formed, according to actual condition, controlled by PLC by four frequency conversions
Four motors of device dragging rotate forward, invert and differential operation, and then four reels is made corresponding operating, realize the upper of suspender
Rise or decline, and realize the forward or rear row of dolly, hereby it is achieved that dolly moves ahead while suspender rises, suspender rises
Dolly moves ahead or the compound motion operating mode such as row after dolly while suspender declines while row, suspender decline after dolly simultaneously, and
And extra servicing unit need not be increased the revolution of suspender can be achieved and vert.
Also, the present embodiment carries out differential operation using four reels, two reels corresponding to same control point are differential
During if any one of generation failure, suspender lateral sliding will not be caused to cause the accident, improve safety in utilization.
In the present embodiment, for the first actuating unit, the driving of two the first transmission components of the first actuating unit
Rope is fixedly connected by the first upright pulley around by backtracking after the first suspender pulley and with dolly, in this way, two driving ropes
The del using the first suspender pulley as summit is collectively forming with the first suspender pulley.
Similarly, in the present embodiment, for the second actuating unit, two the first transmission components of the second actuating unit
Driving rope is fixedly connected by the first upright pulley around by backtracking after the second suspender pulley and with dolly, in this way, two drives
Running rope and the second suspender pulley are collectively forming the del using the second suspender pulley as summit.
For the first actuating unit and the second actuating unit, two the second transmission components positioned at suspender the same side
Driving rope is fixedly connected by the second upright pulley around by backtracking after the 3rd suspender pulley and with dolly, in this way, two drives
Running rope and the 3rd suspender pulley are collectively forming the del using the 3rd suspender pulley as summit.
Similarly, for the first actuating unit and the second actuating unit, positioned at two second transmissions of suspender opposite side
The driving rope of component is fixedly connected by the second upright pulley around by backtracking after the 4th suspender pulley and with dolly, in this way,
Two driving ropes and the 4th suspender pulley are collectively forming the del using the 4th suspender pulley as summit.
In the prior art, it is between driving rope and suspender to form parallelogram more, when dolly starts or stops, due to inertia
Effect, suspender can produce swing by a relatively large margin, potential safety issue be present.And the setting of above-mentioned del can be protected
The stationarity of suspender is demonstrate,proved, dolly starts or in use, the high stability of del in itself makes suspender smoothly be located at present bit
Put without produce swing or amplitude of fluctuation it is smaller, fishing tackle is more not in the phenomenon of rolling.
In the present embodiment, the drivers' cab of crane is arranged on the saddle beam 40 of crane, reduces the degree of rocking of drivers' cab, drop
It is low long-term low regarding the occupational disease risk operated because being carried out using traditional approach.Wherein, crane is included along the door frame of crane
The the first saddle beam and the second saddle beam that width is oppositely arranged, crane are arranged on one in both the first saddle beam and the second saddle beam
On individual, the first saddle beam includes the upper beam and underbeam being vertically oppositely arranged, and the second saddle beam includes vertically relative set
The upper beam and underbeam put, wherein, the first drive component is arranged between the upper beam and underbeam of the first saddle beam, and the second drive component is set
Put between the upper beam and underbeam of the second saddle beam.
The another object of the embodiment of the present invention, which also resides in, provides a kind of lifting unit, and the lifting unit is including track and at least
Two gantries as above, length direction of at least two gantries along track are arranged at intervals successively.
Lifting unit provided in an embodiment of the present invention provides compared to the beneficial effect of prior art with the embodiment of the present invention
Gantry it is identical compared to the beneficial effect of prior art, here is omitted.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (10)
1. a kind of gantry, it is characterised in that including actuating unit and be arranged on the suspender (10) of the crane
Chaining part;
The actuating unit includes two drive components being oppositely arranged, the suspender (10) positioned at two drive components it
Between, two drive components are connected with the chaining part.
2. gantry according to claim 1, it is characterised in that including described in two actuating units and two
Chaining part, two chaining parts are respectively the first chaining part and the second chaining part;
Two drive components in one of them described actuating unit are connected with first chaining part, described in another
Two drive components in actuating unit are connected with second chaining part.
3. gantry according to claim 1, it is characterised in that including described in two actuating units and two
Chaining part;
Two drive components in one of them described actuating unit connect one to one with two chaining parts, another
Two drive components in the individual actuating unit connect one to one with two chaining parts.
4. gantry according to claim 1, it is characterised in that two drive components are along the suspender (10)
Width be oppositely arranged, the chaining part is located at one end of the length direction of the suspender (10);
The actuating unit also includes two the first transmission components (03), the first end of two first transmission components (03) with
Two drive components connect one to one, and the second end of two first transmission components (03) connects with the chaining part
Connect.
5. gantry according to claim 4, it is characterised in that the chaining part is suspender pulley, described first
Transmission component (03) includes the door frame pulley (05) being arranged on the door frame (20) of the crane and is arranged at the lifting
First level pulley (06), the first upright pulley (07) on the dolly (30) of machine, and driving rope;
The first end of the driving rope is connected with the drive component, and the second end of the driving rope is slided around the door frame successively
Take turns after (05), the first level pulley (06), the first upright pulley (07) and the suspender pulley with the dolly
(30) it is fixedly connected.
6. gantry according to claim 1, it is characterised in that including two chaining parts, two drives
Dynamic component and two chaining parts are oppositely arranged along the width of the suspender (10);
The actuating unit also includes two the second transmission components (04), the first end of two second transmission components (04) with
Two drive components connect one to one, the second end and two chaining parts of two second transmission components (04)
Connect one to one.
7. gantry according to claim 6, it is characterised in that the chaining part is suspender pulley, described second
Transmission component (04) includes the door frame pulley (05) being arranged on the door frame (20) of the crane and is arranged at the lifting
The second horizontal trolley (08), the second upright pulley (09) on the dolly (30) of machine, and driving rope;
The first end of the driving rope is connected with the drive component, and the second end of the driving rope is slided around the door frame successively
Take turns after (05), second horizontal trolley (08), the second upright pulley (09) and the suspender pulley with the dolly
(30) it is fixedly connected.
8. gantry according to claim 1, it is characterised in that the drive component includes the frequency conversion being sequentially connected
Device, motor and reel (50), the reel (50) are connected with the chaining part.
9. gantry according to claim 1, it is characterised in that the drivers' cab of the crane is arranged on described rise
On the saddle beam (40) of heavy-duty machine.
10. a kind of lifting unit, it is characterised in that as claimed in any one of claims 1-9 wherein including track and at least two
Gantry;
Length direction of at least two gantries along the track is arranged at intervals successively.
Priority Applications (1)
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CN201711097760.9A CN107601294A (en) | 2017-11-09 | 2017-11-09 | Gantry and lifting unit |
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CN201711097760.9A CN107601294A (en) | 2017-11-09 | 2017-11-09 | Gantry and lifting unit |
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CN201711097760.9A Pending CN107601294A (en) | 2017-11-09 | 2017-11-09 | Gantry and lifting unit |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110271967A (en) * | 2019-07-10 | 2019-09-24 | 上海海事大学 | The bridge crane automatic control system of four suspender of double trolley based on smart camera detection |
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