CN1206686A - Four-bar frame self-lifting type door-base crane - Google Patents
Four-bar frame self-lifting type door-base crane Download PDFInfo
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- CN1206686A CN1206686A CN 98102349 CN98102349A CN1206686A CN 1206686 A CN1206686 A CN 1206686A CN 98102349 CN98102349 CN 98102349 CN 98102349 A CN98102349 A CN 98102349A CN 1206686 A CN1206686 A CN 1206686A
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Abstract
The gantry crane with double lever jib is characterized by that it possesses an upright tower body which is formed from tower frame sections and can be lifted in height between turntable and gantry mounting, and integrates the features of gantry crane and tower crane into one body, can implement low-head installation and high-head operation, and is equipped with computer-controlled hydraulic auto-lifting system by synchronously-jacking tower frame section so as to ensure the smooth, stable and safe lifting of tower body. Besides, said invention adopts the shoe-socket joint and expanding pin joint for connecting all components, so that it can effectively eliminate the gap between connected components, therefore it is favourable for rapid installation and dismantling.
Description
The invention belongs to the hoisting crane technical field, particularly a kind of upright body of the tower and pylon of having is from the four-bar frame span winch that rises device.
In the dam construction that is similar to huge hydroelectric projects such as Three Gorges Projects, if adopt existing span winch, because of it can not be from rising, and be difficult to satisfy the construction operation of dam when different elevation, and the installation of itself still needs the large-scale lifting appliance of other platform, and the camp site does not often possess mounting condition.And tower crane, though the pylon liftable, the lifting altitude height, fully near the operation point, but, need the operation simultaneously of many machines because engineering concreting amount is huge, and working space is less, existing tower crane can not satisfy its working condition requirement.As concrete pouring construction and machinery the key equipment of usefulness is installed, the construction operation when requiring hoisting crane to satisfy different elevation on trapped orbit also can be used for other similar construction site operation, and extremely strong comformability and practicality should be arranged.
Purpose of the present invention is exactly to provide a kind of upright body of the tower and pylon of having from the four-bar frame self-lifting type door-base crane that rises device in order to overcome above-mentioned the deficiencies in the prior art.It integrates the characteristics of span winch and tower crane, can hang down frame and install, can be in the differing heights operation that raises, but and Fast Installation or dismounting, higher operation height and bigger operation protection face are arranged.
Formation of the present invention is that a kind of four-bar frame span winch partly is made up of with non-rotating part rotation.Its rotating part comprises the boom system of being made up of jib, pull bar, trunk beam, the counterweight balance system, and Shears, rotating disk, driver's cab, electric room, luffing mechanism, lifting mechanism, rotating mechanism etc., and form by rotating disk supporting.Non-rotating part comprises door frame, elevator, traveling gear, cable drum etc.It is characterized in that: said door frame is by the door leg in the non-rotating part, the door frame support platform, the door frame column, last ring beam is formed, be positioned on the traveling gear equalizing bar, wherein the door frame support platform is made up of four box crossbeams that become the frame type, be positioned at the top of four door legs, the middle part of door frame support platform is the space, on Qi Sijiao top is the door frame column that four cross sections are flute profile, the square frame that last ring beam is made up of crossbeam is formed, be positioned at the top of door frame column, and four door frame columns are connected as a single entity, two relative side at each flute profile door frame column has the jacking cylinder support holes from top to bottom equally spacedly, is equipped with computer-controlled large-tonnage jacking cylinder in each door frame column respectively.Between rotating disk and door frame support platform by the upright body of the tower of forming by pylon joint of height changeable, topmost a joint is the epimerite pylon, all the other are the pylon standard knot, can increase or reduce the standard knot joint number by requirement for height, every joint pylon is square big bar truss structure, connect and support and form by four jiaos of four king-posts arranging and the connecting rod between king-post, all have jacking seat hole on the every king-post, king-post two ends up and down has last jointing and following jointing respectively, two joint pylons connect by jointing up and down, the top of epimerite pylon is the square shaped as frame back timber that box girder is formed, and its king-post is provided with down jointing, and rotary disk basement drops on the back timber of epimerite pylon.The device that rises certainly that the present invention is furnished with pylon is a lifting body, it is by the jacking ring beam, the plug pin mechanism, pylon support beam and telescoping mechanism thereof, jacking cylinder, hydraulic efficiency pressure system, sensing and detecting system, electrical apparatus control system and pylon guide piece are up and down formed, the jacking ring beam is formed square frame by box type construction, in it is included in pylon, itself is contained by four door frame columns again, four jiaos of outer rims of jacking ring beam all have a projecting block to be embedded in the interior groove of door frame column, and be held on the interior jacking cylinder of door frame column, on the jacking ring beam, the plug pin mechanism that has latch is all arranged, realize being connected and separating of jacking ring beam and pylon joint by it with the every corresponding position of king-post; Corresponding pylon support beam in quadruplet and king-post position and telescoping mechanism thereof are arranged on the door frame support platform, the pylon support beam is a box type construction, its top have can with king-post bonded assembly jointing, connecting bore is arranged at the bottom, can be connected with the door frame support platform, telescoping mechanism links to each other with the pylon support beam, by the motion of telescoping mechanism, can finish the action of stretching out and withdrawing of pylon support beam; Jacking cylinder has four, by computer controlled and be arranged in the column of four jiaos of door frames, and link to each other with hydraulic efficiency pressure system, sensing and detecting system and electrical apparatus control system, the two ends up and down of every jacking cylinder are connected with pin case and downside pin case respectively, in last downside pin case, respectively have two by HYDRAULIC CONTROL SYSTEM simultaneously level flexible on latch and following latch, top at last pin case is the jacking ring beam, and jacking cylinder is bearing in the support holes of door frame column by upper and lower cotter joint; Upper and lower at the door frame column also is equipped with the upper and lower guide piece of pylon respectively.
Feature of the present invention also is in order to guarantee that member is controlled in weight and the oad institute limited field, and the partition of member with connect fast, convenient, safety, quick coupling has been adopted in the connection of its member, and watt shell type joint and bloated pin formula joint are arranged.Watt shell type joint is by last, following inner core, watt cover, and bolt and nut is formed, inner core is the cylinder of a diameter variable thickness, there is one side to be the groove on inclined-plane in the middle of the interior outer core, on, two framing member welding that following inner core connects with need respectively, watt cover is the semicircular ring of two partables, semicircular ring has the cross through hole that passes through for bolt, watt the cover inwall on, following two has one side to be the annular convex shoulder on inclined-plane, groove fit on this convex shoulder and the inner core, make by bolt and to be divided into watt being enclosed within of two semicircular ring and to cooperate synthetic domain when installing with inner core, by the nut that tights a bolt, utilize the inclined-plane of the outer ring recess of two inner cores and the inclined-plane of watt cover inwall projection to cooperate, eliminate the gap of inner core and watt cover, finish the connection of two members, turn on nut the separately then dismountable connection of two half-watt pieces.The pin formula joint that expands is made up of taper pin, expansion set and nut, and the cylindrical of expansion set is cylindrical, and endoporus is taper, and a longitudinal opening arranged, the cylindrical tapering of taper pin is identical with the expansion set tapering, and the screw head is arranged, and the cylindrical of expansion set is an easy fit with the hole of the member that connects, after taper pin is put into expansion set, utilize the cooperation of tapering face,, make the expansion set cylindrical increase by nut tension taper pin, the connection of member is finished in the gap of elimination and coupling member.
The present invention compared with prior art its advantage is: it integrates the characteristics of span winch and tower crane, it is current both to have kept having below the door frame of span winch broad space to buy car in installments, the work wide coverage, space shared during every machine operation is little, can in less zone, arrange the operation simultaneously of several machines, improve the good advantages of serviceability such as unit area operation intensity, the lifting altitude height that has possessed tower crane again, can be from rising, easy for installation, can hang down frame installs, overhead operation can be in different elevation aloft work, can be fully near characteristics such as construction building things.Particularly of the present invention is the computer controlled Hydraulic Synchronizing jacking technology of following supernumerary segment from the system of liter, has guaranteed steady, the safety of pylon in rising, decline process.The present invention has adopted the connecting mode of watt shell type joint and bloated pin formula joint in the connection of member, not only guaranteed scantling in institute's limited field but also can eliminate the gap that is connected between the member effectively, make installation and removal promptly fast, convenient.
Fig. 1 is existing four-bar frame span winch structural representation.
Fig. 2 is a complete machine structure scheme drawing of the present invention.
Fig. 3 is door frame support platform of the present invention and door frame pillar construction scheme drawing.
Fig. 4 is epimerite pylon structure of the present invention and pylon standard knot structural representation.
Fig. 5 is the lateral plan of Fig. 4.
Fig. 6 is a lifting body arrangement plan of the present invention.
Fig. 7 is the mutual alignment scheme drawing of jacking cylinder and jacking ring beam and door frame column.
Fig. 8, Fig. 9 are the present invention's watt shell type joint design scheme drawing.
Figure 10 is the drawing in side sectional elevation of Fig. 8, Fig. 9.
Figure 11 is the bloated pin formula joint design scheme drawing of the present invention
Wherein: the 1-boom system; 2-counterweight balance system; The 3-Shears; The 4-rotating disk; 5-electrical equipment room; The 6-machine house; The 7-luffing mechanism; The 8-lifting mechanism; The 9-rotating mechanism; The 10-driver's cab; The 11-door frame; The 12-elevator; The 13-traveling gear; The 14-cable drum; 15-door frame column; The 16-pylon; The 17-lifting body; The 18-jib; The 19-pull bar; 20-trunk beam; The last guide piece of 21-; Guide piece under the 22-; The 23-inner core; 24-door leg; 25-door frame support platform; The 26-inner core; The last ring beam of 27-; The 28-support holes; 29-epimerite pylon; 30-pylon standard knot; The 31-king-post; The 32-connecting rod; 33-jacking seat hole; The last jointing of 34-; Jointing under the 35-; The 36-back timber; 37-jacking ring beam; 38-insert-pull pin mechanism; 39-pylon support beam; 40-pylon support beam telescoping mechanism; The 41-jacking cylinder; The 42-hydraulic efficiency pressure system; The 43-sensing and detecting system; The 44-electrical apparatus control system; The last pin of 45-case; 46-downside pin case; The last latch of 47-; Latch under the 48-; 49-watt of cover; The 50-nut; The 51-bolt; The 52-nut; The 53-taper pin; The 54-expansion set; The 55-cover for seat; The 56-packing ring.
Provide embodiments of the invention below in conjunction with accompanying drawing, further set forth structure of the present invention and working process.
As Fig. 2, Fig. 3, shown in Figure 6, when the present invention installs at low frame, epimerite pylon 29 is between rotating disk 4 and door frame support platform 25, the circuit orbit beam of the swivel bearing of rotating disk 4 is being located at its top, the whole rotating part of hoisting crane that rotating disk 4 is arranged on it and supported, jointing 35 is connected with pylon support beam 39 on being located in door frame support platform 25 under its king-post of four jiaos, pylon support beam 39 bottoms are connected with door frame support platform 25 by high strength bolt, door frame 11 links to each other with traveling gear 13 by door leg 24, the complete machine walking is on trapped orbit, under this state, hoisting crane can carry out construction operation.
During the jacking operation, as Fig. 6, shown in Figure 7, four jacking cylinders 41 that are arranged in the door frame column 15 are stretched cylinder or the cylinder that contracts, and its following latch 48 is injected be positioned at door frame column 15 bottom lattice support holes 28, and be bearing on the lower plane in hole, last latch 47 is contracted in the pin case 45.The quadruplet plug pin mechanism 38 on plane inserts latch respectively in the jacking seat hole 33 of four king-posts 31 of epimerite pylon 29 (or pylon standard knot 30) on jacking ring beam 37, realizes being connected of jacking ring beam 37 and epimerite pylon 29 (or pylon standard knot 30).Dismounting king-post 31 connects with pylon support beam 39 tops, removes the attachment bolt of door frame support platform 25 and pylon support beam 39 bottoms.Jacking cylinder 41 is stretched cylinder on a small quantity, jacking ring beam 37 drives epimerite pylon 29 (or pylon standard knots 30) and leaves pylon support beam 39, pylon support beam 39 leaves the control position that is connected with king-post 31 and door frame support platform 25 by the motion of its telescoping mechanism 40 then, so that give the passage of slot milling up and down of pylon.By pylon standard knot transport trolley pylon standard knot 30 is delivered in the middle of door frame support platform 25 bottoms, by lift system on the car pylon standard knot 30 is risen to door frame support platform 25 central space again with last joint pylon joint connect height and position (when body of the tower is removed, transport trolley is caught standard knot, put down, transport then).Jointing 34 on the lower link joint 35 of top pylon and the king-post that rises to the standard knot pylon that connects height and position is connected and fixed, two joint bodies of the tower are connected mutually.Cylinder is stretched in four jacking cylinder 41 beginnings synchronously, together with jacking ring beam 37 synchronous jack-up, jacking ring beam 37 drives epimerite pylon 29 (or pylon standard knots 30) and rises, epimerite pylon 29 (or pylon standard knot 30) drives with its pylon standard knot 30 that increases newly that is connected mutually again and passes through from door frame support platform 25 middle parts and rise, as shown in Figure 7, the last latch 47 for the treatment of jacking cylinder 41 rises to it and stop to stretch cylinder during a support holes 28b position on the column original position, put in this support holes by 47 levels of latch on the HYDRAULIC CONTROL SYSTEM, the jacking cylinder 41 synchronous trace cylinder that contracts, after making latch 47 be supported on the supported hole 28b lower plane of door frame column 15, two following latches 48 of jacking cylinder downside pin case 46 leave the supporting plane in the upright supports hole 28, instantly after latch 48 is in vacant state, following latch 48 levels withdrawal downside pin case 46, jacking cylinder 41 cylinder that contracts synchronously, when treating down that latch 48 rises to the last support holes 28a position of its original position, stop the cylinder that contracts, following latch 48 levels put in this support holes 28a, jacking cylinder 41 synchronous trace are stretched cylinder, treat down that latch 48 supports at the lower plane of support holes 28a, after last latch 47 is in vacant state, last latch 47 withdrawals are gone up in the pin case 45, jacking cylinder 41 begins to stretch synchronously cylinder again, drive jacking ring beam 37, epimerite pylon 29 (or pylon standard knot 30) rises synchronously, jacking cylinder 41 is plugged latch 47 again, insert latch 48 down again, support holes 28 along door frame column 15 equal intervals, on jacking cylinder 41, following latch 47,48 in the support holes 28 of column the coordination plug and swash, driving jacking ring beam 37 rises, make the pylon mark Huaihe River joint of epimerite pylon 29 (or pylon standard knot 30) and top rotating disk 4 and whole rotating part and increase rise together, finish the uphill process of pylon.Treat that the pylon standard knot 30 that is connected mutually with the jacking pylon rises on the door frame support platform 25 behind the predetermined altitude from door frame 11 bottom headroom, pylon support beam 39 returns the control position that is connected with king-post 31 and door frame support platform 25 by the motion of its telescoping mechanism 40, jacking cylinder 41 cylinder that contracts on a small quantity, the pylon standard knot king-post 31 of supernumerary segment is located on the pylon support beam 39, and jointing under the pylon 35 is connected with pylon support beam 39, pylon 30 is located on the door frame support platform 25 therefrom.On jacking ring beam 37, by the motion of plug pin mechanism 38 its latch to be transferred in the jacking seat hole 33 (as Fig. 4, shown in Figure 5) of king-post, realization jacking ring beam 37 separates with epimerite pylon 29 (or pylon standard knot 30).So far first segment pylon standard knot jacking top finishes, and with after door frame support platform 25 is connected, hoisting crane can carry out construction operation under this state with pylon support beam 39.When needing again supernumerary segment, pylon is motionless, jacking cylinder 41 is still by climbing under the downward coordination plug of downside pin on it slotting 47,48 in the support holes 28 of column, driving jacking ring beam 37 descends synchronously, inject and be bearing in the door frame column 15 bottom lattice support holes 28 by following latch 48 to jacking cylinder 41, can follow jacking next one pylon standard knot again.Repeat above-mentioned jacking process, and behind the intact joint pylon of every jacking, every joint pylon can be located in all and be fixed on the door frame support platform, and can operation on this elevation.Can select pylon standard knot joint number according to the requirement of operation height, the another joint of the intact joint of jacking goes round and begins again as mentioned above, finally reaches required lifting altitude.In the time of need pulling down the pylon standard knot, the jacking cylinder action changes down maneuver into, swashes to change into down and climbs, and is similar to above-mentioned jacking working process.
Claims (4)
1. one kind by rotation partly and the four-bar frame span winch formed of non-rotating part, its rotating part comprises by jib, pull bar, the boom system (1) that the trunk beam is formed, counterweight balance system (2), Shears (3), rotating disk (4), driver's cab (10), electric room (5), luffing mechanism (7), lifting mechanism (8), rotating mechanism (9) etc., and form by rotating disk (4) supporting, non-rotating part comprises door frame (11), elevator (12), traveling gear (13), cable drum (14) etc., it is characterized in that: said door frame (11) is by door leg (24) in the non-rotating part, door frame support platform (25), door frame column (15), last ring beam (27) is formed, be positioned on the traveling gear equalizing bar, wherein the middle part of door frame support platform (25) is the space, door frame column (15) is arranged on Qi Sijiao top, have support holes (28) on the column, between rotating disk (4) and door frame support platform (25) by the upright body of the tower of forming by pylon joint of height lifting, every joint pylon is connected by the connecting rod (32) between king-post (31) and king-post and forms, all have jacking seat hole (33) on the every king-post (31), king-post (31) two ends up and down has last jointing (34) and following jointing (35) respectively, two joint pylons connect by jointing up and down, and are furnished with the lifting body of pylon.
2. a kind of four-bar frame self-lifting type door-base crane according to claim 1, it is characterized in that: its pylon lifting body is by jacking ring beam (37), plug pin mechanism (38), pylon support beam (39) and telescoping mechanism (40) thereof, jacking cylinder (41), hydraulic efficiency pressure system (42), sensing and detecting system (43), electrical apparatus control system (44) is formed, jacking ring beam (37) is a square frame, in it is included in pylon, itself is contained by four door frame columns (15) again, jacking ring beam (37) and door frame column (15) the chimeric connection of convex-concave, and be held on the interior jacking cylinder (41) of column, go up and there is plug pin mechanism (38) the corresponding position of king-post (31) at jacking ring beam (37), on door frame support platform (25), have and king-post (31) corresponding pylon support beam in position (39) and telescoping mechanism (40) thereof, pylon support beam (39) top can be connected with king-post lower union joint (35), the bottom can be connected with door frame support platform (25), jacking cylinder (41) is arranged in the door frame column (15), and with hydraulic efficiency pressure system, sensing and detecting system and electrical apparatus control system link to each other, the two ends up and down of every jacking cylinder are connected with pin case (45) and downside pin case (46) respectively, but in last downside pin case, respectively have two by the HYDRAULIC CONTROL SYSTEM level flexible on latch (47) and following latch (48), jacking cylinder (41) is bearing in the support holes (28) of column by upper and lower cotter joint.
3. a kind of four-bar frame span winch according to claim 1 and 2, it is characterized in that: a watt shell type joint has been adopted in the connection between member, it is by inner core (23), (26), watt the cover (49), bolt (51), nut (50) is formed, inner core is the cylinder of a diameter variable thickness, there is a circle to have one side to be the groove on inclined-plane in the middle of the interior outer core, two framing members that need to connect respectively with two inner cores (23), (26) welding, watt the cover (49) be the semicircular ring of two partables, semicircular ring has the cross through hole that passes through for bolt (51), watt the cover inwall on, following two has one side to be the annular convex shoulder on inclined-plane, groove fit on this convex shoulder and the inner core makes by bolt to be divided into watt being enclosed within of two semicircular ring and to cooperate synthetic domain when installing with inner core.
4. a kind of four-bar frame span winch according to claim 1 and 2, it is characterized in that: bloated pin formula joint has been adopted in the connection between member, it is made up of taper pin (53), expansion set (54) and nut (52), taper pin (53) is contained in the expansion set (54), nut (52) is positioned at an end of taper pin (53), the cylindrical of expansion set (54) is cylindrical, endoporus is conical, and a longitudinal opening arranged, the cylindrical tapering of taper pin (53) is identical with expansion set (54) tapering, and screw head is arranged, the cylindrical of expansion set is an easy fit with the hole of the member that connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98102349A CN1057973C (en) | 1998-06-08 | 1998-06-08 | Four-bar frame self-lifting type door-base crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98102349A CN1057973C (en) | 1998-06-08 | 1998-06-08 | Four-bar frame self-lifting type door-base crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1206686A true CN1206686A (en) | 1999-02-03 |
| CN1057973C CN1057973C (en) | 2000-11-01 |
Family
ID=5217281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98102349A Expired - Fee Related CN1057973C (en) | 1998-06-08 | 1998-06-08 | Four-bar frame self-lifting type door-base crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057973C (en) |
Cited By (12)
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| CN100344523C (en) * | 2005-11-25 | 2007-10-24 | 武汉理工大学 | Arm crane spar structure jib lubbing mechanism |
| CN100393604C (en) * | 2005-11-03 | 2008-06-11 | 哈尔滨工业大学 | Pneumatic balancing hanger rod with rotary arm |
| CN101792091A (en) * | 2010-03-12 | 2010-08-04 | 广州文冲船厂有限责任公司 | Moment hoisting method for three connecting rods of gantry crane |
| CN101920913A (en) * | 2009-06-13 | 2010-12-22 | 徐州建机工程机械有限公司 | Self-propelled wide-span tower crane |
| CN101955131A (en) * | 2009-07-20 | 2011-01-26 | 江苏赛富隆重工有限公司 | Single-cantilever-crane gantry crane |
| CN102295236A (en) * | 2011-09-02 | 2011-12-28 | 上海国际港务(集团)股份有限公司军工路分公司 | Double gantry crane lifting device |
| CN101691190B (en) * | 2009-09-29 | 2012-01-04 | 秦皇岛天业通联重工股份有限公司 | Bulk cargo crane |
| CN102502279A (en) * | 2011-10-14 | 2012-06-20 | 沈阳矿山机械有限公司 | Conical chamber portal device applied to bucket wheel machine |
| CN103332596A (en) * | 2013-07-08 | 2013-10-02 | 北京中船信息科技有限公司 | GPS-based gantry crane attitude monitoring system and method thereof |
| CN103935902A (en) * | 2014-05-12 | 2014-07-23 | 焦作市超捷科技有限公司 | Novel mechanical balance crane with lateral horizontal booms on two jibs |
| CN109132880A (en) * | 2018-09-28 | 2019-01-04 | 广州文冲船厂有限责任公司 | The method for dismounting of high pedestal jib crane |
| CN111675107A (en) * | 2020-05-29 | 2020-09-18 | 武汉港迪电气传动技术有限公司 | Precise amplitude and height scheduling method for hoisting weight of four-link portal crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393604C (en) * | 2005-11-03 | 2008-06-11 | 哈尔滨工业大学 | Pneumatic balancing hanger rod with rotary arm |
| CN100344523C (en) * | 2005-11-25 | 2007-10-24 | 武汉理工大学 | Arm crane spar structure jib lubbing mechanism |
| CN101920913B (en) * | 2009-06-13 | 2013-08-07 | 徐州建机工程机械有限公司 | Self-propelled wide-span tower crane |
| CN101920913A (en) * | 2009-06-13 | 2010-12-22 | 徐州建机工程机械有限公司 | Self-propelled wide-span tower crane |
| CN101955131A (en) * | 2009-07-20 | 2011-01-26 | 江苏赛富隆重工有限公司 | Single-cantilever-crane gantry crane |
| CN101691190B (en) * | 2009-09-29 | 2012-01-04 | 秦皇岛天业通联重工股份有限公司 | Bulk cargo crane |
| CN101792091B (en) * | 2010-03-12 | 2012-07-11 | 广州文冲船厂有限责任公司 | Moment hoisting method for three connecting rods of gantry crane |
| CN101792091A (en) * | 2010-03-12 | 2010-08-04 | 广州文冲船厂有限责任公司 | Moment hoisting method for three connecting rods of gantry crane |
| CN102295236A (en) * | 2011-09-02 | 2011-12-28 | 上海国际港务(集团)股份有限公司军工路分公司 | Double gantry crane lifting device |
| CN102502279A (en) * | 2011-10-14 | 2012-06-20 | 沈阳矿山机械有限公司 | Conical chamber portal device applied to bucket wheel machine |
| CN103332596A (en) * | 2013-07-08 | 2013-10-02 | 北京中船信息科技有限公司 | GPS-based gantry crane attitude monitoring system and method thereof |
| CN103332596B (en) * | 2013-07-08 | 2015-05-27 | 北京中船信息科技有限公司 | Method for GPS-based gantry crane attitude monitoring system |
| CN103935902A (en) * | 2014-05-12 | 2014-07-23 | 焦作市超捷科技有限公司 | Novel mechanical balance crane with lateral horizontal booms on two jibs |
| CN103935902B (en) * | 2014-05-12 | 2016-09-07 | 焦作市超捷科技有限公司 | A kind of novel mechanical balance crane of both arms band side direction horizontal suspension rod |
| CN109132880A (en) * | 2018-09-28 | 2019-01-04 | 广州文冲船厂有限责任公司 | The method for dismounting of high pedestal jib crane |
| CN111675107A (en) * | 2020-05-29 | 2020-09-18 | 武汉港迪电气传动技术有限公司 | Precise amplitude and height scheduling method for hoisting weight of four-link portal crane |
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| CN1057973C (en) | 2000-11-01 |
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