CN104786002A - Maintenance method and device for slewing bearing part of gantry crane - Google Patents
Maintenance method and device for slewing bearing part of gantry crane Download PDFInfo
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- CN104786002A CN104786002A CN201510211651.XA CN201510211651A CN104786002A CN 104786002 A CN104786002 A CN 104786002A CN 201510211651 A CN201510211651 A CN 201510211651A CN 104786002 A CN104786002 A CN 104786002A
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- pivoting support
- gear
- cylinder
- gantry crane
- maintenance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
Abstract
The invention provides a maintenance method and device for a slewing bearing part of a gantry crane. The maintenance device comprises jacking supports (5) fixed to a cylinder (2) and jacks (4) arranged between the jacking supports (5) and a rotary table (1). In the maintenance process, a connecting bolt between a slewing bearing (3) and the cylinder (2) is detached. The jacks (4) are operated to jack the rotary table (1) upwards, and then the portion above the slewing bearing (3) of the gantry crane is jacked upwards. When the slewing bearing (3) is separated from the slewing bearing face of the cylinder (2) at a certain gap, the connecting bolt between the slewing bearing (3) and the rotary table (1) is detached. The damaged slewing bearing (3) is pulled out from the jacked space gap. A complete slewing bearing is fed to an original installation position. The slewing bearing is connected to the lower portion of the rotary table (1) through a bolt. The jacks (4) are adjusted, the slewing bearing (3) falls to make contact with the slewing bearing face of the cylinder (2), connecting fastening is conducted through a bolt, and maintenance work is finished.
Description
Technical field
The present invention relates to the maintenance technique field of gantry crane, especially relate to a kind of method for maintaining and device of gantry crane pivoting support portion.
Background technology
Gantry crane is that crane span structure is by the jib-type crane of both sides outrigger support on ground rail or ground; be widely used in the ground handling operations such as harbour, the building berth close with harbour and power station; the operation duration is long; load weight; in use often there will be the situation that pivoting support glide path damages; pivoting support glide path can cause pivoting support to topple with upper part after damaging, and major accident occurs, therefore must keep in repair pivoting support in time.
Gantry crane complete machine comprises the parts such as turntable, cylinder, pivoting support, turntable is equipped with slew gear, lifting mechanism, and turntable also load has engine house, rotary column, balance sysmte, jib, trunk beam, the large parts such as pull bar, jib lubbing mechanism; Door frame, travelling mechanism, anchoring device etc. are comprised below cylinder.The interior raceway of pivoting support is connected with pivoting support face, turntable bottom high-strength bolt, and external toothing is connected with the pivoting support face high-strength bolt on cylinder top.When dismantling pivoting support and keeping in repair cylinder pivoting support face, prior art must be dismantled rotating disk and above parts thereof, and after need dismantling the pipeline etc. of the electric wire of electric part, lubrication portion, again old pivoting support and cylinder are dismantled, that on heavy duty machine tools or special plane equipment, carries out pivoting support face after cylinder dismounting reprocesses processing, install with new pivoting support after processing, integral hoisting, more successively cylinder and above all parts are installed according to the reverse order of dismounting.Prior art has the following disadvantages: in maintenance process, cylinder, pivoting support, turntable and above parts (containing electric wire, pipeline) must carry out dismantling and installing once, maintenance time is long, workload is large, reach the assembly precision requirement of equipment, require high to the technical quality of personnel; Parts dismounting, the crane of all kinds of model must be taken when installing, and due to its maintenance time long, the machine-team number used is many, has increased substantially maintenance cost; Cylinder maintenance and fabrication with main equipment or special plane equipment, because its diameter and length are comparatively large, need be applicable in some areas find the equipment of its processing is more difficult, indirectly adds processing cost, extend maintenance cycle; The parts that gantry crane disassembles need take the place of periphery, the production that impact is on-the-spot, also easily lose or damage.
Summary of the invention
In order to overcome the defect of prior art, the technical problem that the present invention solves is: provide one significantly can shorten maintenance time, reduce maintenance cost, coordinate method for maintaining and the maintenance of the gantry crane cylinder pivoting support of maintenance without the need to large-scale special processing equipment.
In order to solve the problems of the technologies described above, realize the replacing to pivoting support, on the one hand, the invention provides a kind of gantry crane pivoting support portion method for maintaining, it comprises the following steps: in the cylinder circumferential exterior surface of gantry crane, arrange at least three fixing jacking bearings; Respectively jack is set between the lower plane of the turntable of described jacking bearing and gantry crane; Connecting bolt between pivoting support and cylinder is disassembled; Operation jack up withstands the lower plane of turntable, makes the pivoting support of gantry crane with upper part by jack-up; When certain space gap is isolated in the pivoting support face of pivoting support and cylinder, after enough pivoting support being taken out, the connecting bolt of pivoting support and turntable bottom is disassembled; The pivoting support damaged is extracted out from the spatial joint clearance of jack-up; Intact pivoting support is sent into former installation site; With bolt, pivoting support is connected to the bottom of turntable; Regulate jack pivoting support to be fallen contact with the pivoting support face of cylinder (2), then carry out connecting with bolt fastening, complete maintenance work.
In order to solve the technical problem of repairing the pivoting support face of the cylinder damaged, as further improvement opportunity scheme, gantry crane pivoting support portion provided by the invention method for maintaining, also comprise the processing reparation in the pivoting support face to cylinder, it comprises the following steps: after certain space gap is isolated in the pivoting support face of pivoting support and cylinder, maintenance and fabrication device is connected to the external toothing of pivoting support; Start the slew gear of gantry crane, the pinion of slew gear rotates in original place and engages with pivoting support, the external toothing of pivoting support is rotated, and external toothing drives maintenance and fabrication device to rotate, and machining is carried out in the pivoting support face of cutter to cylinder of maintenance and fabrication device.
As optimal technical scheme, according to embodiments of the invention, gantry crane pivoting support portion provided by the invention method for maintaining, described maintenance and fabrication device comprises the connecting plate removably connected with the external toothing of pivoting support; At least one guide rail be connected away from the one side of pivoting support with described connecting plate; The carriage saddle be connected with described slide; The cutter be connected with described carriage saddle; The screw rod mount pad be connected with described carriage saddle; The screw rod be threaded with described screw rod mount pad; The first gear be fastenedly connected with one end of described screw rod; The second gear be fixedly connected with described cylinder by connecting rod or at least local edge has the shifting fork mechanism of tooth; Be fixedly connected on described second gear respectively or at least local edge have the baffle plate of the both sides of the shifting fork mechanism of tooth; Described second gear or at least local edge have when the shifting fork mechanism of tooth and described first gear meet and be connected with a joggle, be positioned at the second gear or at least local edge have the baffle plate of the shifting fork mechanism both sides of tooth, distance between the two matches with the thickness of the first gear; Because the second gear or the shifting fork mechanism at least local edge with tooth have two pieces of baffle plates to carry out spacing to the first gear, first gear and screw rod only can be rotated, when the first gear move to engage with the second gear or the shifting fork mechanism at least local edge with tooth time, stir bolt rotary, the rotation of screw rod makes cutter realization along the feeding in the direction, pivoting support face of cylinder, after the machining in the pivoting support face of whole cylinder to be done, disassemble maintenance and fabrication device, the second gear or shifting fork mechanism and connecting rod; Regulate jack pivoting support to be fallen contact with the pivoting support face of cylinder, then carry out connecting with bolt fastening, complete maintenance work.
In order to solve the problems of the technologies described above, realize the processing reparation to the pivoting support face of cylinder, on the other hand, the invention provides a kind of gantry crane pivoting support portion method for maintaining, it comprises the following steps: in the cylinder circumferential exterior surface of gantry crane, arrange at least three fixing jacking bearings; Respectively jack is set between the lower plane of the turntable of described jacking bearing and gantry crane; Connecting bolt between pivoting support and cylinder is disassembled; Operation jack up withstands the lower plane of turntable, makes the pivoting support of gantry crane with upper part by jack-up; After certain space gap is isolated in the pivoting support face of pivoting support and cylinder, maintenance and fabrication device is connected to the external toothing of pivoting support; Start the slew gear of gantry crane, the pinion of slew gear rotates in original place and engages with pivoting support again, the external toothing of pivoting support is rotated, and external toothing drives maintenance and fabrication device to rotate, and machining is carried out in the pivoting support face of cutter to cylinder of maintenance and fabrication device.
On the basis of technique scheme, as optimal technical scheme, according to embodiments of the invention, gantry crane pivoting support portion provided by the invention method for maintaining, described maintenance and fabrication device comprises the connecting plate removably connected with the external toothing of pivoting support; At least one guide rail be connected away from the one side of pivoting support with described connecting plate; The carriage saddle be connected with described slide; The cutter be connected with described carriage saddle; The screw rod mount pad be connected with described carriage saddle; The screw rod be threaded with described screw rod mount pad; The first gear be fastenedly connected with one end of described screw rod; The second gear be fixedly connected with described cylinder by connecting rod or at least local edge has the shifting fork mechanism of tooth; Be fixedly connected on described second gear respectively or at least local edge have the baffle plate of the both sides of the shifting fork mechanism of tooth; Described second gear or at least local edge have when the shifting fork mechanism of tooth and described first gear meet and be connected with a joggle, be positioned at the second gear or at least local edge have the baffle plate of the shifting fork mechanism both sides of tooth, the distance between two baffle plates matches with the thickness of the first gear; When the first gear move to engage with the second gear or the shifting fork mechanism at least local edge with tooth time, stir bolt rotary, the rotation of screw rod makes cutter realization along the feeding in the direction, pivoting support face of cylinder, after the machining in the pivoting support face of whole cylinder to be done, disassemble maintenance and fabrication device, the second gear or shifting fork mechanism and connecting rod; Regulate jack pivoting support to be fallen contact with the pivoting support face of cylinder, then carry out connecting with bolt fastening, complete maintenance work.
As further improvement opportunity scheme, gantry crane pivoting support portion provided by the invention method for maintaining, before machining is carried out to the pivoting support face of cylinder, by gantry crane pivoting support with upper part and with lower part carry out respectively reinforcing fix; Keep in repair rear dismounting girth member.
As further improvement opportunity scheme, gantry crane pivoting support portion provided by the invention method for maintaining, cutter is regulated along the amount of feeding in the direction, pivoting support face of cylinder by the extension elongation of the piston rod regulating jack.
In order to solve the problems of the technologies described above, realize the replacing to pivoting support, the present invention also provides a kind of gantry crane pivoting support portion maintenance unit, and it comprises at least three jacking bearings be fixed in the cylinder circumferential exterior surface of gantry crane; Jack between the lower plane being arranged on the turntable of described jacking bearing and gantry crane.
As further improvement opportunity scheme, gantry crane pivoting support portion provided by the invention maintenance unit, also have the maintenance and fabrication device pivoting support face of cylinder being carried out to machining, described maintenance and fabrication device comprises the connecting plate removably connected with the external toothing of pivoting support; At least one guide rail be connected away from the one side of pivoting support with described connecting plate; The carriage saddle be connected with described slide; The cutter be connected with described carriage saddle; The screw rod mount pad be connected with described carriage saddle; The screw rod be threaded with described screw rod mount pad; The first gear be fastenedly connected with one end of described screw rod; The second gear be fixedly connected with described cylinder by connecting rod or at least local edge has the shifting fork mechanism of tooth; Be fixedly connected on described second gear respectively or at least local edge have the baffle plate of the both sides of the shifting fork mechanism of tooth; Described second gear or at least local edge have when the shifting fork mechanism of tooth and described first gear meet and be connected with a joggle, the distance between two pieces of baffle plates matches with the thickness of the first gear.
As further improvement opportunity scheme, gantry crane pivoting support portion provided by the invention maintenance unit, also has the ring stiffener that the inner side that is fixedly connected on described cylinder is equal with the upper plane of jacking bearing.
Method for maintaining provided by the invention, each step, when not affecting construction and safety, can adjust, can hocket if desired.
In technical scheme provided by the invention, maintenance and fabrication device is not limited to above preferred structure, as long as the external toothing of pivoting support can be arranged on, can mounting cutter the pivoting support face of gantry crane cylinder is processed, and reach relevant required precision after making processing, technical conceive of the present invention can be implemented, and obtain identical or close technique effect.
When not conflicting, above-mentioned improvement or optimal technical scheme can be implemented alone or in combination.
Technical scheme provided by the invention, adopt and multiple jacking bearing is set in the cylinder circumferential exterior surface of gantry crane, between the lower plane of the turntable of jacking bearing and gantry crane, jack is set, during maintenance, pivoting support and cylinder connecting bolt are dismantled, the lower plane of turntable is up withstood with jack, make the pivoting support of gantry crane with after upper part up jack-up, then carry out corresponding maintenance activity; Cylinder, turntable and above parts (containing electric wire, pipeline) all can be accomplished without the need to dismounting and install, decrease disassemble and assemble work amount and maintenance cycle, do not need to take certain peripheral space to deposit parts yet, eliminate on-the-spot potential safety hazard, decrease the cost deposited; Do not need to use too much crane gear, and the human and material resources etc. associated with use crane gear, reduce maintenance cost; The maintenance of cylinder utilizes the slew gear of gantry crane itself, only needs a set of easy processing to cut maintenance and fabrication device, and does not need to find main equipment or special plane equipment, indirectly reduce processing cost, shorten maintenance cycle.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the facade structures schematic diagram of embodiment maintenance unit;
Fig. 2 is the structural representation after the partial enlargement of Fig. 1;
Fig. 3 is the schematic diagram of embodiment maintenance unit one of state when cutting;
Fig. 4 is the schematic diagram of embodiment maintenance unit state two when cutting;
Fig. 5 is the structural representation of embodiment maintenance and fabrication device;
Fig. 6 is the position view that embodiment maintenance and fabrication device is connected with the external toothing of pivoting support.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Gantry crane pivoting support portion maintenance unit as shown in Figures 1 to 6, cylinder 2 circumferential exterior surface of gantry crane welds four jacking bearings 5 in cross direction; And ring stiffener 6 is welded inside the cylinder 2 equal with plane on jacking bearing 5, between the lower plane of the turntable 1 of each jacking bearing 5 and gantry crane, insert multiple jack 4 respectively, total top lift of jack 4 need be greater than the gravity of pivoting support with upper part of gantry crane.When needing to carry out machining to the pivoting support face of cylinder 2, also need installation and maintenance processing unit (plant) 8.Incorporated by reference to Fig. 5, maintenance and fabrication device 8 comprises the connecting plate 81 removably connected with the external toothing of pivoting support 3, the connecting plate 81 on the external toothing of pivoting support 3 is arranged on by bolt, two guide rails 83 be connected away from the one side of pivoting support 3 with connecting plate 81, by the carriage saddle 86 that two rams 84,85 are slidably connected with two guide rails 83 respectively, be connected to the cutter 87 of carriage saddle 86 bottom, the upper screw mount pad 82 of carriage saddle 86 is fastened on securing member, the screw rod 88 be threaded with screw rod mount pad 82, is fastenedly connected the first gear 89 in screw rod 88 one end; Second gear 72 of shifting fork device 7 is welded on the inner surface of cylinder 2 by connecting rod 73, the second gear 72 securing member is connected fastening with connecting rod 73, makes it not rotate, is fixedly connected with baffle plate 71 respectively in the both sides of the second gear 72.During installation, two guide rails 83 are parallel to each other layout, and the axis of screw rod and the axis of two guide rails 83 are parallel to each other, and make carriage saddle 86 on two guide rails slidably freely, second gear 72 and the first gear 89 can engage each other when meeting, and the distance between two pieces of baffle plates 71 matches with the thickness of the first gear 89.The top and bottom of connecting plate 81 are through Milling Process, machining accuracy reaches the required precision in pivoting support face, two guide rails 83 soket head cap screw is fastened on connecting plate 81, two rams 84,85 are fastened on carriage saddle 86 with securing member respectively, cutter 87 uses bolted on carriage saddle 86, first gear 89 and the second gear 72 can form with numerical control cutting machine cutting, and do not need through lathe fine finishining.
When only needing change or safeguard pivoting support 3, jack 4 is placed between the lower plane of the turntable 1 of each jacking bearing 5 and gantry crane, the connecting bolt of pivoting support 3 with cylinder 2 is disassembled, operation jack 4 up withstands the lower plane of turntable 1, make the pivoting support 3 of gantry crane with upper part up jack-up, when pivoting support 3 and the pivoting support face of cylinder 2 isolate certain space gap, after enough pivoting supports 3 take out, the connecting bolt of pivoting support 3 with turntable 1 bottom is disassembled, the pivoting support 3 damaged is extracted out from the spatial joint clearance of jack-up, intact pivoting support is sent into former installation site, with bolt, pivoting support is connected to the bottom of turntable 1, regulate jack, pivoting support 3 is fallen contact with the pivoting support face of cylinder 2, carry out connecting fastening again with bolt, complete maintenance work.Above step, when not affecting construction and safety, slightly can adjust, can hocket if desired.
When processing reparation need be carried out to the pivoting support face of cylinder 2, jack 4 is placed respectively between the lower plane of the turntable 1 of each jacking bearing 5 and gantry crane, the connecting bolt of pivoting support 3 with cylinder 2 is disassembled, operation jack 4 up withstands the lower plane of turntable 1, make the pivoting support 3 of gantry crane with upper part up jack-up, after certain space gap is isolated in pivoting support 3 and the pivoting support face of cylinder 2, the connecting plate 81 of maintenance and fabrication device 8 is arranged on the external toothing of pivoting support 3 with bolt, two guide rails 83 soket head cap screw is fastened in the one side of connecting plate 81 away from pivoting support 3, two guide rails 83 are parallel to each other layout, two rams 84, 85 are fastened on carriage saddle 86 with securing member respectively, screw rod mount pad 82 securing member is fastened on the top of carriage saddle 86, by two rams 84, 85 are slidably connected with two guide rails 83 respectively, make carriage saddle 86 on two guide rails slidably freely, cutter 87 uses bolted on carriage saddle 86, screw rod 88 is threaded with screw rod mount pad 82, the axis of screw rod and the axis of two guide rails 83 are parallel to each other, first gear 89 is fastenedly connected in one end of screw rod 88, second gear 72 securing member of shifting fork device 7 is connected fastening with connecting rod 73, second gear 72 can not be rotated around connecting rod 73, second gear 72 engages with the first gear 89 well, connecting rod 73 is welded on the inner surface of cylinder 2, ring baffle 71 is welded respectively in the both sides of the second gear 72, distance between second ring baffle plate 71 matches with the thickness of the first gear 89.The top and bottom of connecting plate 81 are through Milling Process, and machining accuracy reaches the required precision in pivoting support face, and the first gear 89 and the second gear 72 can form with numerical control cutting machine cutting, and do not need through lathe fine finishining.When regulating jack up to push up, machining amount is according to actual needs adjusted cutter 87 rising on the pivoting support face of cylinder 2 and is cut position, before machining is carried out to the pivoting support face of cylinder 2, by gantry crane pivoting support 3 with upper part with lower part respectively with angle steel or channel-section steel carry out spot welding be connected carry out reinforcing fix, start the slew gear of gantry crane, the pinion 9 of slew gear rotates in original place and engages with pivoting support 3 again, the external toothing of pivoting support 3 is rotated, external toothing drives maintenance and fabrication device to rotate, machining is carried out in the pivoting support face of cutter 87 pairs of cylinders 2.Cutter 87 pitch of the laps on maintenance and fabrication device adds man-hour, when the first gear 89 moves to the second gear 72 and engages, because the second gear 72 has two pieces of baffle plates 71 to carry out spacing to the first gear 89, first gear 89 and screw rod 88 only can be rotated in original place, second gear 72 is stirred screw rod 88 and is rotated, the rotating band moving knife stand 86 of screw rod 88 and cutter 87 realize the feeding in the direction, pivoting support face along cylinder 2, cutter 87 regulates along the amount of feeding of the pivoting support face depth direction of cylinder 2 by the extension elongation of the piston rod of fine-adjustment jack 4, after the machining in the pivoting support face of whole cylinder 2 to be done, disassemble maintenance and fabrication device 8, second gear 72 and connecting rod 73, disassemble the angle steel or channel-section steel reinforced, regulate jack 4, pivoting support 3 is slowly fallen contact with the pivoting support face of cylinder 2, carry out connecting fastening again with bolt, complete maintenance work.Above step, when not affecting construction and safety, slightly can adjust, can hocket if desired.
In other embodiments, second gear 72 of shifting fork device 7 can with local edge having the circle of tooth, part that is fan-shaped or other shape replaces, the quantity of tooth can be one or more, as long as the first gear 89 can be made through out-of-date, screw rod 88 can be stirred rotate, all can solve identical technical problem, and there is identical technique effect.
Obviously, the invention is not restricted to above preferred embodiment, in the spirit that also can limit in the claims in the present invention and description, carry out conversion and the improvement of various ways, can same technical problem be solved, and obtain the technique effect of expection, therefore not repeat.Those of ordinary skill in the art can from content disclosed by the invention directly or all schemes associated, as long as within the spirit limited in claim, also belong to protection scope of the present invention.
Claims (10)
1. a gantry crane pivoting support portion method for maintaining, is characterized in that, comprise the following steps: in cylinder (2) circumferential exterior surface of gantry crane, arrange at least three fixing jacking bearings (5); Respectively jack (4) is set between the lower plane of the turntable (1) of described jacking bearing (5) and gantry crane; Connecting bolt between pivoting support (3) and cylinder (2) is disassembled; The lower plane of turntable (1) is up withstood in operation jack (4), makes the pivoting support (3) of gantry crane with upper part by jack-up; When pivoting support (3) and the pivoting support face of cylinder (2) isolate certain space gap, after enough pivoting support (3) being taken out, the connecting bolt of pivoting support (3) with turntable (1) bottom is disassembled; The pivoting support (3) damaged is extracted out from the spatial joint clearance of jack-up; Intact pivoting support is sent into former installation site; With bolt, pivoting support is connected to the bottom of turntable (1); Regulate jack (4) pivoting support (3) to be fallen contact with the pivoting support face of cylinder (2), then carry out connecting with bolt fastening, complete maintenance work.
2. gantry crane pivoting support portion according to claim 1 method for maintaining, it is characterized in that, also comprise the processing reparation in the pivoting support face to cylinder (2), comprise the following steps: after certain space gap is isolated in pivoting support (3) and the pivoting support face of cylinder (2), maintenance and fabrication device (8) is connected to the external toothing of pivoting support (3); Start the slew gear of gantry crane, the pinion (9) of slew gear rotates in original place and engages with pivoting support (3), the external toothing of pivoting support (3) is rotated, external toothing drives maintenance and fabrication device to rotate, and machining is carried out in the pivoting support face of cutter to cylinder (2) of maintenance and fabrication device.
3. gantry crane pivoting support portion according to claim 2 method for maintaining, is characterized in that: described maintenance and fabrication device (8) comprises the connecting plate (81) removably connected with the external toothing of pivoting support (3); At least one guide rail (83) be connected away from the one side of pivoting support (3) with described connecting plate (81); The carriage saddle (86) be slidably connected with described guide rail (83); The cutter (87) be connected with described carriage saddle (86); The screw rod mount pad (82) be connected with described carriage saddle (86); The screw rod (88) be threaded with described screw rod mount pad (82); The first gear (89) be fastenedly connected with one end of described screw rod (88); The second gear (72) be fixedly connected with described cylinder (2) by connecting rod (73) or at least local edge has the shifting fork mechanism of tooth; Be fixedly connected on described second gear (72) respectively or at least local edge have the baffle plate (71) of the both sides of the shifting fork mechanism of tooth; Described second gear (72) or at least local edge have when the shifting fork mechanism of tooth and described first gear (89) meet and be connected with a joggle, be positioned at the second gear (72) or at least local edge have the baffle plate (71) of the shifting fork mechanism both sides of tooth, distance between the two matches with the thickness of the first gear (89); When the first gear (89) move to engage with the second gear (72) or the shifting fork mechanism at least local edge with tooth time, stir screw rod (88) to rotate, the rotation of screw rod (88) makes cutter (87) realization along the feeding in the direction, pivoting support face of cylinder (2), after the machining in the pivoting support face of whole cylinder (2) to be done, disassemble maintenance and fabrication device (8), the second gear (72) or shifting fork mechanism and connecting rod (73); Regulate jack (4) pivoting support (3) to be fallen contact with the pivoting support face of cylinder (2), then carry out connecting with bolt fastening, complete maintenance work.
4. a gantry crane pivoting support portion method for maintaining, is characterized in that, comprise the following steps: in cylinder (2) circumferential exterior surface of gantry crane, arrange at least three fixing jacking bearings (5); Respectively jack (4) is set between the lower plane of the turntable (1) of described jacking bearing (5) and gantry crane; Connecting bolt between pivoting support (3) and cylinder (2) is disassembled; The lower plane of turntable (1) is up withstood in operation jack (4), makes the pivoting support (3) of gantry crane with upper part by jack-up; After certain space gap is isolated in pivoting support (3) and the pivoting support face of cylinder (2), maintenance and fabrication device (8) is connected to the external toothing of pivoting support (3); Start the slew gear of gantry crane, the pinion (9) of slew gear rotates in original place and engages with pivoting support (3) again, the external toothing of pivoting support (3) is rotated, external toothing drives maintenance and fabrication device to rotate, and machining is carried out in the pivoting support face of cutter to cylinder (2) of maintenance and fabrication device.
5. gantry crane pivoting support portion according to claim 4 method for maintaining, is characterized in that: described maintenance and fabrication device (8) comprises the connecting plate (81) removably connected with the external toothing of pivoting support (3); At least one guide rail (83) be connected away from the one side of pivoting support (3) with described connecting plate (81); The carriage saddle (86) be slidably connected with described guide rail (83); The cutter (87) be connected with described carriage saddle (86); The screw rod mount pad (82) be connected with described carriage saddle (86); The screw rod (88) be threaded with described screw rod mount pad (82); The first gear (89) be fastenedly connected with one end of described screw rod (88); The second gear (72) be fixedly connected with described cylinder (2) by connecting rod (73) or at least local edge has the shifting fork mechanism of tooth; Be fixedly connected on described second gear (72) respectively or at least local edge have the baffle plate (71) of the both sides of the shifting fork mechanism of tooth; Described second gear (72) or at least local edge have when the shifting fork mechanism of tooth and described first gear (89) meet and be connected with a joggle, be positioned at the second gear (72) or at least local edge have the baffle plate (71) of the shifting fork mechanism both sides of tooth, the distance between two baffle plates (71) matches with the thickness of the first gear (89); When the first gear (89) move to engage with the second gear (72) or the shifting fork mechanism at least local edge with tooth time, stir screw rod (88) to rotate, the rotation of screw rod (88) makes cutter (87) realization along the feeding in the direction, pivoting support face of cylinder (2), after the machining in the pivoting support face of whole cylinder (2) to be done, disassemble maintenance and fabrication device (8), the second gear (72) or shifting fork mechanism and connecting rod (73); Regulate jack (4) pivoting support (3) to be fallen contact with the pivoting support face of cylinder (2), then carry out connecting with bolt fastening, complete maintenance work.
6. the gantry crane pivoting support portion method for maintaining according to claim 4 or 5, it is characterized in that: before machining is carried out to the pivoting support face of cylinder (2), by gantry crane pivoting support (3) with upper part and with lower part carry out respectively reinforcing fix; Keep in repair rear dismounting girth member.
7. gantry crane pivoting support portion according to claim 5 method for maintaining, is characterized in that: cutter (87) is regulated along the amount of feeding in the direction, pivoting support face of cylinder (2) by the extension elongation of the piston rod regulating jack (4).
8. a gantry crane pivoting support portion maintenance unit, is characterized in that: comprise at least three jacking bearings (5) be fixed in cylinder (2) circumferential exterior surface of gantry crane; Jack (4) between the lower plane being arranged on the turntable (1) of described jacking bearing (5) and gantry crane.
9. gantry crane pivoting support portion according to claim 8 maintenance unit, it is characterized in that: also have the maintenance and fabrication device (8) the pivoting support face of cylinder (2) being carried out to machining, described maintenance and fabrication device (8) comprises the connecting plate (81) removably connected with the external toothing of pivoting support (3); At least one guide rail (83) be connected away from the one side of pivoting support (3) with described connecting plate (81); The carriage saddle (86) be slidably connected with described guide rail (83); The cutter (87) be connected with described carriage saddle (86); The screw rod mount pad (82) be connected with described carriage saddle (86); The screw rod (88) be threaded with described screw rod mount pad (82); The first gear (89) be fastenedly connected with one end of described screw rod (88); The second gear (72) be fixedly connected with described cylinder (2) by connecting rod (73) or at least local edge has the shifting fork mechanism of tooth; Be fixedly connected on described second gear (72) respectively or at least local edge have the baffle plate (71) of the both sides of the shifting fork mechanism of tooth; Described second gear (72) or at least local edge have when the shifting fork mechanism of tooth and described first gear (89) meet and be connected with a joggle, the distance between two pieces of baffle plates (71) matches with the thickness of the first gear (89).
10. gantry crane pivoting support portion maintenance unit according to claim 8 or claim 9, is characterized in that: also have the ring stiffener (6) that the inner side that is fixedly connected on described cylinder (2) is equal with the upper plane of jacking bearing (5).
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| CN201510211651.XA CN104786002B (en) | 2015-04-30 | 2015-04-30 | The method for maintaining and device in gantry crane pivoting support portion |
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| CN201510211651.XA CN104786002B (en) | 2015-04-30 | 2015-04-30 | The method for maintaining and device in gantry crane pivoting support portion |
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| CN106938422A (en) * | 2017-04-17 | 2017-07-11 | 重庆潍柴发动机有限公司 | Engine crankshaft ring groove processing device |
| CN107661977A (en) * | 2017-09-22 | 2018-02-06 | 九江萍钢钢铁有限公司 | It is a kind of that the method for changing conticaster ladle pivoting support is integrally lifted according to crane gear |
| CN111421297A (en) * | 2020-04-16 | 2020-07-17 | 昆明电机厂有限责任公司 | On-site treatment method for damage of thrust bearing surface |
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| CN104786002B (en) | 2017-06-06 |
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Denomination of invention: Maintenance method and device for slewing bearing part of gantry crane Effective date of registration: 20180503 Granted publication date: 20170606 Pledgee: Xiangtan Jiuhua Economic Construction Investment Co., Ltd. Pledgor: Tidfore Engineering Co., Ltd.|Tidfore Heavy Industry Co., Ltd.|Ocean engineering equipment (Tianjin) Co., Ltd. Registration number: 2018430000029 |
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