CN104444823A - Novel bridge-frame crane - Google Patents
Novel bridge-frame crane Download PDFInfo
- Publication number
- CN104444823A CN104444823A CN201410815826.3A CN201410815826A CN104444823A CN 104444823 A CN104444823 A CN 104444823A CN 201410815826 A CN201410815826 A CN 201410815826A CN 104444823 A CN104444823 A CN 104444823A
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- CN
- China
- Prior art keywords
- driver
- cab
- panel
- sway
- seat
- 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.)
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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
- B66C13/00—Other constructional features or details
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
- B66C13/54—Operator's stands or cabins
-
- 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
- B66C2700/0321—Travelling cranes
- B66C2700/0328—Cranes on rails or on rail vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a novel bridge-frame crane. The novel bridge-frame crane comprises a driver cab, a hoisting trolley, a bridge-frame operating mechanism and a bridge-frame metal structure, wherein a plurality of groups of windows are arranged on a front panel, a lower panel, a left panel, a right panel and a rear panel of a cabin body of the driver cab; the left panel and the right panel are respectively provided with an adjustable type electric rear-view observation mirror; an adjustable type seat is arranged in the cabin body of the driver cab and comprises a base and a movable seat; the base comprises a fixed seat, a front-rear movement part and a left-right movement part; the two sides of the lower surface of the seat body are respectively provided with a left operation platform and a right operation platform; and the four corners of the lower surface of the lower panel are fixedly provided with same driver-cab buffering mechanisms. The novel bridge-frame crane disclosed by the invention has the advantages that the defects of the driver cab of the existing bridge-frame crane can be overcome, the integrated type design of the driver seat and the operation platforms is realized, the observation viewing angle is good and simultaneously the vibration-reducing function is achieved.
Description
Technical field
The present invention relates to a kind of hoisting crane, particularly relate to a kind of Novel bridge frame hoisting crane.
Background technology
Hoisting crane is a kind of lifting appliance being widely used in the occasions such as mine, metallurgy, warehouse, plays huge effect in fields such as engineering constructions.Crane in bridge type is mainly applied in the places such as indoor and outdoor warehouse, factory building, harbour and outdoor yard.Crane in bridge type is mainly made up of driver's cab, crane carriage, crane span structure operating unit and crane span structure metal construction, and driver manipulates crane span structure operating unit in driver's cab, and manipulation crane carriage moves in crane span structure metal construction.The crane span structure of overhead crane along be laid on both sides overhead on track longitudinally run, crane carriage laterally runs along the track be laid on crane span structure, form the operating range of a rectangle, the space handling material below crane span structure can be made full use of, not by the obstruction of wayside equipment.The feature of crane in bridge type to make the weight hung on suspension hook or other load-engaging devices realize vertical lift or Horizontal Movement in space.Existing overhead crane driver's cab is generally continued to use traditional " former Soviet Union's pattern ", there is following drawback:
1. driver's chair is non-adjustable, causes driver driving tired, cannot realize according to actual needs rotating with the working condition of observing specific position simultaneously;
2. driver's chair is separated with operation bench, and spacing is fixing cannot be adjusted, and causes driver cannot install individual physical qualification adjustment best operational position, cannot manipulate hoisting crane smoothly simultaneously under the improper sitting posture observing specific position;
3. driver's cab is bolted on driver's cab platform, does not have damping effect, and driver is easily because impact shock produces tired in During prolonged operation, and this will cause certain potential safety hazard.
Summary of the invention
The object of this invention is to provide a kind of Novel bridge frame hoisting crane, the drawback of existing overhead crane driver's cab can be solved, there is driver's chair and operation bench unitary design and possess the overhead crane driver's cab of good observation visual angle, possessing shock-absorbing function simultaneously.
The present invention adopts following technical proposals:
Novel bridge frame hoisting crane, comprise driver's cab, crane carriage, crane span structure operating unit and crane span structure metal construction, it is characterized in that: described driver's cab comprises the driver's cab cabin body be made up of top panel, lower faceplate, front panel, rear panel, left panel and right panel, the front panel of driver's cab cabin body is arc front panel, and arc front panel upper and lower is respectively arranged with transparent part for front sight and lower transparent part for front sight, the front portion of lower faceplate is provided with lower form, left panel and right panel are respectively arranged with left hatch door and right hatch door, the both sides of left hatch door and left hatch door are provided with left form, the both sides of right hatch door and right hatch door are provided with right form, the upper-end front of left panel and right panel is respectively arranged with adjustable electric rear-viewing mirror, the upper and lower of rear panel is respectively arranged with rear view window and lower rear view window, body inside, driver's cab cabin is provided with seat chair with adjustable, seat chair with adjustable comprises base and self folding seat, described base is divided into permanent seat, movable portion and sway portion, described permanent seat is fixed on lower faceplate, permanent seat upper surface is arranged with three groups in parallel and moves forward and backward chute, described movable portion comprises movable support plate, corresponding three groups of the lower surface of movable support plate moves forward and backward chute and is provided with three groups and moves forward and backward slide block, three groups move forward and backward slide block respectively correspondence be arranged on three groups and move forward and backward in chute, three groups of right sides moving forward and backward slide block are connected respectively three movable linear stepping motors, three movable linear stepping motors are fixed on permanent seat upper surface, the upper surface of movable support plate is arranged with three groups of sway chutes in parallel, described sway portion comprises sway support plate, the corresponding three groups of sway chutes of lower surface of sway support plate are provided with three groups of sway slide blocks, three groups of sway slide blocks respectively correspondence are arranged in three groups of sway chutes, the aft end face of three groups of sway slide blocks is connected respectively three sway linear stepping motors, three sway linear stepping motors are fixed on movable support plate upper surface, sway support plate center position is provided with bearing seat, bearing is provided with in bearing seat, turning cylinder and the bearing inner ring of self folding seat are fixed, the turning cylinder outer ring of self folding seat is fixed with big gear wheel, sway support plate is vertically provided with rotary electric machine, the output shaft of rotary electric machine is provided with miniature gears, big gear wheel engages with miniature gears, described self folding seat comprises turning cylinder and is fixed on the seat body of turning cylinder upper end, described seat body lower surface both sides are respectively arranged with left operation bench horizontal slip pole and right operation bench horizontal slip pole, left operation bench and right operation bench respectively with left operation bench horizontal slip pole and right operation bench horizontal slip pole sliding block joint, seat body lower surface both sides are also fixed with left operation bench linear stepping motor and right operation bench linear stepping motor respectively, the mouth of left operation bench linear stepping motor connects left operation bench right side, and the mouth of right operation bench linear stepping motor connects right operation bench left side, the lower surface Corner Strapped of lower faceplate has identical driver's cab buffer gear, described driver's cab buffer gear comprises driver's cab connecting portion and driver's cab platform connecting portion, driver's cab connecting portion comprises driver's cab connecting panel, driver's cab connecting panel upper surface and lower faceplate are fixed, the lower surface of driver's cab connecting panel is provided with the guide rod of hollow, driver's cab platform connecting portion comprises driver's cab platform connecting panel, lower surface and the driver's cab platform of driver's cab platform connecting panel are fixed, the upper surface of driver's cab platform connecting panel is provided with hollow stop collar, guide rod is arranged in stop collar, spring is provided with in the cavity of guide rod.
The cavity floor of described stop collar is provided with rubber buffer, and rubber buffer adopts rubber pad.
Described driver's cab connecting panel upper surface welds with lower faceplate or is bolted.
Lower surface and the driver's cab platform welding of described driver's cab platform connecting panel or be bolted.
The present invention, by the many groups form arranged on front panel, lower faceplate, left panel, right panel and rear panel, effectively can expand the field range of hoisting crane chaufeur, reduces visual dead angle; By the adjustable electric rear-viewing mirror that the upper-end front of left panel and right panel is arranged respectively, the observation of hoisting crane chaufeur to rear side side can be further facilitated, effectively avoid the generation of operating accident.Simultaneously, also seat chair with adjustable is provided with in the present invention, not only can to the movement in the direction all around that seat carries out, can also rotate, chaufeur observe left side, right side and rear side situation time, need not stand again and leave seat observation, reduce because chaufeur leaves the potential safety hazard brought position.Meanwhile, the present invention also by left operation bench and right operation bench Integral design, makes left operation bench can rotate with seat chair with adjustable with right operation bench, is more conducive to the accurate manipulation of chaufeur.In the present invention, left operation bench and right operation bench can regulate the distance between seat body, and chaufeur can regulate according to self height of individual and brachium, ensures the traveling comfort used, and reduce manipulation potential safety hazard.The present invention also has identical driver's cab buffer gear by the lower surface Corner Strapped of plate below, utilize the spring arranged in driver's cab buffer gear to offset the vibration of overhead crane in course of normal operation, and utilize rubber buffer to avoid the direct impact of the in-house mechanism of spring buffer to be in certain extreme cases damaged.
Accompanying drawing explanation
Fig. 1 is driver's cab section structure schematic diagram in the present invention;
Fig. 2 is the structural representation of permanent seat in the present invention;
Fig. 3 is the structural representation in movable portion in the present invention;
Fig. 4 is the structural representation in sway portion in the present invention;
Fig. 5 is the structural representation of base in the present invention;
Fig. 6 is the structural representation of self folding seat in the present invention;
Fig. 7 is the structural representation of driver's cab buffer gear in the present invention.
Detailed description of the invention
As shown in Figures 1 to 7, a kind of Novel bridge frame hoisting crane of the present invention, comprise main fine strain of millet, door leg, running trolley, lifting mechanism, traveling mechanism of the larger traveller, electric system and driver's cab, described driver's cab comprises the driver's cab cabin body be made up of top panel 1, lower faceplate 2, front panel 3, rear panel 4, left panel 5 and right panel, the front panel 3 of driver's cab cabin body is arc front panel, and arc front panel upper and lower is respectively arranged with transparent part for front sight 6 and lower transparent part for front sight 7, the front portion of lower faceplate 2 is provided with lower form 8, left panel 5 and right panel are respectively arranged with left hatch door 9 and right hatch door, the both sides of left hatch door 9 and left hatch door 9 are provided with left form 10, the both sides of right hatch door and right hatch door are provided with right form, the upper-end front of left panel 5 and right panel is respectively arranged with adjustable electric rear-viewing mirror 11, the upper and lower of rear panel 4 is respectively arranged with rear view window 12 and lower rear view window 13, body inside, driver's cab cabin is provided with seat chair with adjustable, seat chair with adjustable comprises base and self folding seat, described base is divided into permanent seat 14, movable portion and sway portion, described permanent seat 14 is fixed on lower faceplate 2, permanent seat 14 upper surface is arranged with three groups in parallel and moves forward and backward chute 15, described movable portion comprises movable support plate 16, corresponding three groups of the lower surface of movable support plate 16 moves forward and backward chute 15 and is provided with three groups and moves forward and backward slide block 17, three groups move forward and backward slide block 17 respectively correspondence be arranged on three groups and move forward and backward in chute 15, three groups of right sides moving forward and backward slide block 17 are connected respectively three movable linear stepping motors 18, three movable linear stepping motors 18 are fixed on permanent seat 14 upper surface, the upper surface of movable support plate 16 is arranged with three groups of sway chutes 19 in parallel, described sway portion comprises sway support plate 20, the corresponding three groups of sway chutes 19 of lower surface of sway support plate 20 are provided with three groups of sway slide blocks 21, three groups of sway slide blocks 21 respectively correspondence are arranged in three groups of sway chutes 19, the aft end face of three groups of sway slide blocks 21 is connected respectively three sway linear stepping motors 22, three sway linear stepping motors 22 are fixed on movable support plate 16 upper surface, sway support plate 20 center position is provided with bearing seat 23, bearing 24 is provided with in bearing seat 23, turning cylinder 25 and bearing 24 inner ring of self folding seat are fixed, turning cylinder 25 outer ring of self folding seat is fixed with big gear wheel 26, sway support plate 20 is vertically provided with rotary electric machine 27, the output shaft of rotary electric machine 27 is provided with miniature gears 28, big gear wheel 26 engages with miniature gears 28, described self folding seat comprises turning cylinder 25 and is fixed on the seat body 29 of turning cylinder 25 upper end, described seat body 29 lower surface both sides are respectively arranged with left operation bench horizontal slip pole 30 and right operation bench 33 horizontal slip pole 31, left operation bench 32 and right operation bench 33 respectively with left operation bench horizontal slip pole 30 and right operation bench horizontal slip pole 31 sliding block joint, seat body 29 lower surface both sides are also fixed with left operation bench linear stepping motor 34 and right operation bench linear stepping motor 35 respectively, the mouth of left operation bench linear stepping motor 34 connects left operation bench 32 right side, and the mouth of right operation bench linear stepping motor 35 connects right operation bench 33 left side.
The present invention in use, the upper rear view window 12 that the right form that the left form 10 that the lower form 8 that the front portion of the upper transparent part for front sight 6 that front panel 3 is arranged respectively and lower transparent part for front sight 7, lower faceplate 2 is arranged, left panel 5 are arranged, right panel are arranged and rear panel 4 are arranged and lower rear view window 13 effectively can expand the field range of hoisting crane chaufeur, reduce visual dead angle; Be respectively arranged with adjustable electric rear-viewing mirror 11 by the upper-end front of left panel 5 and right panel, the observation of hoisting crane chaufeur to rear side side can be further facilitated, effectively avoid the generation of operating accident.
The lower surface Corner Strapped of lower faceplate 2 has identical driver's cab buffer gear, described driver's cab buffer gear comprises driver's cab connecting portion and driver's cab platform connecting portion, driver's cab connecting portion comprises driver's cab connecting panel 36, driver's cab connecting panel 36 upper surface and lower faceplate 2 are fixed, the lower surface of driver's cab connecting panel 36 is provided with the guide rod 37 of hollow, driver's cab platform connecting portion comprises driver's cab platform connecting panel 38, lower surface and the driver's cab platform 39 of driver's cab platform connecting panel 38 are fixed, the upper surface of driver's cab platform connecting panel 38 is provided with hollow stop collar 40, guide rod 37 is arranged in stop collar 40, spring 41 is provided with in the cavity of guide rod 37.In order to avoid the cavity inner bottom surface of the lower end device stop collar 40 of guide rod 37 in extreme circumstances, cause device damage or severe oscillations, the present invention is also provided with rubber buffer 42 in the cavity floor of stop collar 40, and rubber buffer 42 adopts rubber pad.In the present embodiment, driver's cab connecting panel 36 upper surface welds with lower faceplate 2 or is bolted; The lower surface of driver's cab platform connecting panel 38 welds with driver's cab platform 39 or is bolted.Under driver's cab is conducted oneself with dignity normally, spring 41 has certain compression, and the vibration of overhead crane in course of normal operation can be offset by the deformation quantity of spring 41, plays buffering effect.
In the present invention, also be provided with seat chair with adjustable, not only can to the movement in the direction all around that seat carries out, can also rotate, chaufeur observe left side, right side and rear side situation time, need not stand again and leave seat observation, reduce because chaufeur leaves the potential safety hazard brought position.Meanwhile, the present invention, also by left operation bench 32 and right operation bench 33 Integral design, makes left operation bench 32 can rotate with seat chair with adjustable with right operation bench 33, is more conducive to the accurate manipulation of chaufeur.In the present invention, left operation bench 32 and right operation bench 33 can regulate the distance between seat body 29, and chaufeur can regulate according to self height of individual and brachium, ensures the traveling comfort used, and reduce manipulation potential safety hazard.
Claims (4)
1. Novel bridge frame hoisting crane, comprise driver's cab, crane carriage, crane span structure operating unit and crane span structure metal construction, it is characterized in that: described driver's cab comprises the driver's cab cabin body be made up of top panel, lower faceplate, front panel, rear panel, left panel and right panel, the front panel of driver's cab cabin body is arc front panel, and arc front panel upper and lower is respectively arranged with transparent part for front sight and lower transparent part for front sight, the front portion of lower faceplate is provided with lower form, left panel and right panel are respectively arranged with left hatch door and right hatch door, the both sides of left hatch door and left hatch door are provided with left form, the both sides of right hatch door and right hatch door are provided with right form, the upper-end front of left panel and right panel is respectively arranged with adjustable electric rear-viewing mirror, the upper and lower of rear panel is respectively arranged with rear view window and lower rear view window, body inside, driver's cab cabin is provided with seat chair with adjustable, seat chair with adjustable comprises base and self folding seat, described base is divided into permanent seat, movable portion and sway portion, described permanent seat is fixed on lower faceplate, permanent seat upper surface is arranged with three groups in parallel and moves forward and backward chute, described movable portion comprises movable support plate, corresponding three groups of the lower surface of movable support plate moves forward and backward chute and is provided with three groups and moves forward and backward slide block, three groups move forward and backward slide block respectively correspondence be arranged on three groups and move forward and backward in chute, three groups of right sides moving forward and backward slide block are connected respectively three movable linear stepping motors, three movable linear stepping motors are fixed on permanent seat upper surface, the upper surface of movable support plate is arranged with three groups of sway chutes in parallel, described sway portion comprises sway support plate, the corresponding three groups of sway chutes of lower surface of sway support plate are provided with three groups of sway slide blocks, three groups of sway slide blocks respectively correspondence are arranged in three groups of sway chutes, the aft end face of three groups of sway slide blocks is connected respectively three sway linear stepping motors, three sway linear stepping motors are fixed on movable support plate upper surface, sway support plate center position is provided with bearing seat, bearing is provided with in bearing seat, turning cylinder and the bearing inner ring of self folding seat are fixed, the turning cylinder outer ring of self folding seat is fixed with big gear wheel, sway support plate is vertically provided with rotary electric machine, the output shaft of rotary electric machine is provided with miniature gears, big gear wheel engages with miniature gears, described self folding seat comprises turning cylinder and is fixed on the seat body of turning cylinder upper end, described seat body lower surface both sides are respectively arranged with left operation bench horizontal slip pole and right operation bench horizontal slip pole, left operation bench and right operation bench respectively with left operation bench horizontal slip pole and right operation bench horizontal slip pole sliding block joint, seat body lower surface both sides are also fixed with left operation bench linear stepping motor and right operation bench linear stepping motor respectively, the mouth of left operation bench linear stepping motor connects left operation bench right side, and the mouth of right operation bench linear stepping motor connects right operation bench left side, the lower surface Corner Strapped of lower faceplate has identical driver's cab buffer gear, described driver's cab buffer gear comprises driver's cab connecting portion and driver's cab platform connecting portion, driver's cab connecting portion comprises driver's cab connecting panel, driver's cab connecting panel upper surface and lower faceplate are fixed, the lower surface of driver's cab connecting panel is provided with the guide rod of hollow, driver's cab platform connecting portion comprises driver's cab platform connecting panel, lower surface and the driver's cab platform of driver's cab platform connecting panel are fixed, the upper surface of driver's cab platform connecting panel is provided with hollow stop collar, guide rod is arranged in stop collar, spring is provided with in the cavity of guide rod.
2. Novel bridge frame hoisting crane according to claim 1, is characterized in that: the cavity floor of described stop collar is provided with rubber buffer, and rubber buffer adopts rubber pad.
3. Novel bridge frame hoisting crane according to claim 2, is characterized in that: described driver's cab connecting panel upper surface welds with lower faceplate or is bolted.
4. Novel bridge frame hoisting crane according to claim 3, is characterized in that: lower surface and the driver's cab platform welding of described driver's cab platform connecting panel or be bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815826.3A CN104444823B (en) | 2014-12-23 | 2014-12-23 | Novel bridge frame crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815826.3A CN104444823B (en) | 2014-12-23 | 2014-12-23 | Novel bridge frame crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104444823A true CN104444823A (en) | 2015-03-25 |
| CN104444823B CN104444823B (en) | 2016-06-08 |
Family
ID=52891697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410815826.3A Expired - Fee Related CN104444823B (en) | 2014-12-23 | 2014-12-23 | Novel bridge frame crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104444823B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417382A (en) * | 2015-11-27 | 2016-03-23 | 河南新科起重机股份有限公司 | Bridge type crane operation room capable of steering |
| CN107298384A (en) * | 2017-08-08 | 2017-10-27 | 无锡宝宏船舶机械有限公司 | Possesses the remote crane cabin for looking around function |
| CN107324219A (en) * | 2017-08-08 | 2017-11-07 | 无锡宝宏船舶机械有限公司 | Possesses the hoisting box of material conveying function |
| CN115159354A (en) * | 2022-09-06 | 2022-10-11 | 中致达智能电气股份有限公司 | Motor speed regulation control operation console for crane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003312984A (en) * | 2002-04-25 | 2003-11-06 | Potain Sa | Foldable driver's cab/pivot unit for tower crane |
| JP2006168941A (en) * | 2004-12-17 | 2006-06-29 | Kobelco Cranes Co Ltd | Crawler crane |
| CN102285595A (en) * | 2011-06-13 | 2011-12-21 | 大连神通电气有限公司 | Crane cab |
| CN202508778U (en) * | 2012-04-03 | 2012-10-31 | 辽宁三洋重工起重机装备有限公司 | Cab for overhead and gantry crane |
| CN203922495U (en) * | 2013-12-18 | 2014-11-05 | 扬州市扬子钣金制造有限公司 | A kind of lift truck cab with good load-carrying capacity |
| CN204369451U (en) * | 2014-12-23 | 2015-06-03 | 河南新科起重机股份有限公司 | Novel bridge frame hoisting crane |
-
2014
- 2014-12-23 CN CN201410815826.3A patent/CN104444823B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003312984A (en) * | 2002-04-25 | 2003-11-06 | Potain Sa | Foldable driver's cab/pivot unit for tower crane |
| JP2006168941A (en) * | 2004-12-17 | 2006-06-29 | Kobelco Cranes Co Ltd | Crawler crane |
| CN102285595A (en) * | 2011-06-13 | 2011-12-21 | 大连神通电气有限公司 | Crane cab |
| CN202508778U (en) * | 2012-04-03 | 2012-10-31 | 辽宁三洋重工起重机装备有限公司 | Cab for overhead and gantry crane |
| CN203922495U (en) * | 2013-12-18 | 2014-11-05 | 扬州市扬子钣金制造有限公司 | A kind of lift truck cab with good load-carrying capacity |
| CN204369451U (en) * | 2014-12-23 | 2015-06-03 | 河南新科起重机股份有限公司 | Novel bridge frame hoisting crane |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417382A (en) * | 2015-11-27 | 2016-03-23 | 河南新科起重机股份有限公司 | Bridge type crane operation room capable of steering |
| CN107298384A (en) * | 2017-08-08 | 2017-10-27 | 无锡宝宏船舶机械有限公司 | Possesses the remote crane cabin for looking around function |
| CN107324219A (en) * | 2017-08-08 | 2017-11-07 | 无锡宝宏船舶机械有限公司 | Possesses the hoisting box of material conveying function |
| CN115159354A (en) * | 2022-09-06 | 2022-10-11 | 中致达智能电气股份有限公司 | Motor speed regulation control operation console for crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104444823B (en) | 2016-06-08 |
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