The argosy centrally-pivoted axle device of revolution class hoisting crane
Technical field
The utility model relates to hoisting crane, particularly relates to the centrally-pivoted axle device of a kind of argosy revolution class hoisting crane.
Background technology
Centrally-pivoted axle device is the vitals of huge revolving class hoisting crane, is arranged on (see Fig. 1) between crane rotation platform and hoisting crane pedestal.Centrally-pivoted axle device is divided into and crane rotation platform hard-wired cantilever core structure and telescoping structure two parts hard-wired with hoisting crane pedestal, by the contact action between two parts, the lateral loading suffered by hoisting crane is passed to hoisting crane pedestal by turn table.
The design and use of current large-scale land revolution class hoisting crane are ripe, and the design aids of argosy revolution class hoisting crane are little.Installation foundation due to large-scale land revolution class hoisting crane is the ground of compacting, so land hoisting crane at work can't run-off the straight, hoisting crane is only subject to the very little lateral loading of carrying due to wind and hoisting heavy beat produces, and its center pivot device only bears less lateral loading; In actual use, because stormy waves is to the effect of boats and ships, hull meeting run-off the straight, rotary crane peculiar to vessel can be subject to larger lateral loading because hull tilts to revolution class hoisting crane peculiar to vessel.If the design form of land revolution class hoisting crane centrally-pivoted axle is used in and bears larger side in the argosy revolution class hoisting crane of load, will seem very unreasonable, therefore must improve.
Utility model content
Main purpose of the present utility model provides a kind of argosy to turn round the centrally-pivoted axle device of class hoisting crane for overcoming defect that prior art exists, and its reasonable in design, from heavy and light, can bear larger side to load, result of use ideal.
The purpose of this utility model is realized by following technical scheme:
The utility model argosy centrally-pivoted axle device of revolution class hoisting crane, is characterized in that: comprise upper pivot and lower pivot;
Upper pivot is cantilever core structure, and it comprises: upper bed-plate 4, top buting iron 6, upper seat 8, outer contacting friction sleeve 10, oil drain pan 12 and the first end cap 13; This upper seat 8 is made up of a upper seat stay bearing plate 16, upper seat flange 15 and several upper seat gusset 17, upper seat flange 15 is connected with upper seat stay bearing plate 16, upper seat gusset 17 is connected with upper seat flange 15 and upper seat stay bearing plate 16, upper bed-plate 4 bottom surface is connected with upper seat flange 15, and upper bed-plate 4 and upper seat 8 are integrally connected; This top buting iron 6 is with upper seat flange 15 outer ring close fit and be connected with upper bed-plate 4, and outer contacting friction sleeve 10 is by interference fit between its outer peripheral surface and upper seat stay bearing plate 16 inner peripheral surface of upper seat 8; This oil drain pan 12 open end is connected with one end that upper seat stay bearing plate 16 deviates from upper bed-plate 4; First end cap 13 is connected with upper seat stay bearing plate 16 one end towards upper bed-plate 4; Upper bed-plate 4 end face is connected with bottom crane rotation platform 1;
Lower pivot is cantilever core structure, and it comprises: lower bottom base 5, bottom buting iron 7, lower seat 9, interior contact friction cover 11 and the second end cap 14; This lower seat 9 is made up of gusset 21 inside gusset 20 outside a lower seat flange 18, lower seat stay bearing plate 19, several lower seat and several lower seat, this lower seat flange 18 is connected with lower seat stay bearing plate 19, outside lower seat, gusset 20 is connected with lower seat flange 18 and lower seat stay bearing plate 19, inside lower seat, gusset 21 is connected with lower seat stay bearing plate 19 inwall, lower bottom base 5 end face is connected with lower seat flange 18, and lower bottom base 5 and lower seat 9 are integrally connected; This bottom buting iron 7 assembles with lower seat flange 18 outer ring close contact and is connected with lower bottom base 5; This interior contact friction cover 11 is installed with the outer peripheral surface flush fit of lower seat stay bearing plate 19; One end that lower seat stay bearing plate 19 deviates from lower bottom base 5 connects the second end cap 14; Lower bottom base 5 bottom surface is connected with hoisting crane pedestal 3 top;
Upper pivot and lower pivot contacts by the socket that the outer contacting friction sleeve 10 installed respectively and interior contact friction overlaps 11 and form integrally, to realize carrying crane side to loading functionality.
The centrally-pivoted axle device of aforesaid argosy revolution class hoisting crane, wherein: described upper bed-plate 4 is internal diameters is 5000 ± 10mm, and external diameter is 5500 ± 20mm, thickness is the metal material torus of 50 ± 20mm; Upper seat flange 15 is that an internal diameter is identical with thickness with upper bed-plate 4 internal diameter respectively with thickness, external diameter is less than the metal material cylindrical ring body of upper bed-plate 4 external diameter, this upper seat flange 15 is arranged on the end face that upper bed-plate 4 deviates from crane rotation platform one end, and several bolt hole is bored along circumferentially equidistantly joining of its center of gyration on the two mating surfaces, fix for making upper bed-plate 4 and upper seat flange 15 by bolt; Upper seat stay bearing plate 16 is that external diameter is identical with upper seat flange 15 internal diameter, and the difference of internal diameter and external diameter is 70 ± 10mm, and thickness is greater than the metal material cylinder-like body of upper bed-plate 4 thickness; Upper seat stay bearing plate 16 is installed by its external diameter and upper seat flange 15 minor diameter fit and solder design one; Upper seat gusset 17 is the rectangular leg-of-mutton metal material plate bodys of section, and its two square edges deviate from a side end face of upper bed-plate 4 respectively with upper seat flange 15 and upper seat stay bearing plate 16 sidewall weld is fixed; Several upper seat gusset 17 is equally spaced and is arranged on upper seat stay bearing plate 16 sidewall; Top buting iron 6 assembles with upper seat flange 15 outer ring close contact and is connected with upper bed-plate 4, the cylindrical ring body that the iron material matter annular solid that this top buting iron 6 is rectangle by 2 or 4 identical transversal surfaces forms, this cylindrical ring body internal diameter equals the external diameter of upper seat flange 15, the difference of its external diameter and internal diameter is 80 to 100mm, makes top buting iron 6 fit closely over upper seat flange 15 outer ring and deviates from a side of crane rotation platform one end end face by it near upper bed-plate 4 and upper bed-plate 4 is welded and fixed; Outer contacting friction sleeve 10 is that external diameter is identical with upper seat stay bearing plate 16 internal diameter, internal diameter is 4800 ± 50mm, height is the hollow cylindrical body of 500 ± 20mm, this outer contacting friction sleeve 10 adopts steel, steel type (the GB/T699-1999, and outer contacting friction sleeve 10 is by interference fit between its outer peripheral surface and upper seat stay bearing plate 16 inner peripheral surface of upper seat 8 that is 45; Oil drain pan 12 is annular arrangement open recess, and this toroidal cavity internal diameter is corresponding to the external diameter of lower seat stay bearing plate 19, and external diameter is corresponding to the internal diameter of upper seat stay bearing plate 16; One end that open end and the upper seat stay bearing plate 16 of oil drain pan 12 deviate from upper bed-plate 4 is connected, and the first end cap 13 is connected with upper seat stay bearing plate 16 one end towards upper bed-plate 4; Packing seal is cylindrical ring body, and sealing pad is arranged in the gap location that oil drain pan 12 contacts with lower seat stay bearing plate 19; Upper bed-plate 4 end face is connected with bottom crane rotation platform 1;
Described lower bottom base 5 is internal diameters is 4500 ± 10mm, and external diameter is 5300 ± 20mm, and thickness is the metal material torus of 50 ± 20mm; Lower seat flange 18 is that an internal diameter is identical with thickness with lower bottom base 5 internal diameter with thickness, external diameter is less than the metal material cylindrical ring body of lower bottom base 5 external diameter, this lower seat flange 18 is arranged on the end face that lower bottom base 5 deviates from hoisting crane pedestal 3 top, and several bolt hole is bored along circumferentially equidistantly joining of its center of gyration on the two mating surfaces, fix for making lower bottom base 5 and lower seat flange 18 by bolt; Lower seat stay bearing plate 19 is that external diameter is identical with lower seat flange 18 internal diameter, and the difference of internal diameter and external diameter is 70 ± 10mm, and thickness is greater than the metal material cylinder-like body of lower bottom base 5 thickness; Lower seat stay bearing plate 19 is installed by its external diameter and lower seat flange 18 minor diameter fit and solder design one; Outside lower seat, gusset 20 is the rectangular leg-of-mutton metal material plate bodys of section, and its two square edges deviate from a side end face of lower bottom base 5 respectively with the lower seat flange 18 of lower seat 9 and lower seat stay bearing plate 19 sidewall weld is fixed; Outside several lower seat, gusset 20 is equally spaced and is arranged on lower seat stay bearing plate 19 sidewall; Inside lower seat, gusset 21 is the rectangular metal material plate bodys of section, and it is welded and fixed by the inwall of the lower seat stay bearing plate 19 of a long limit and lower seat 9; Inside several lower seat, gusset 21 is equally spaced and is arranged on lower seat stay bearing plate 19 inwall; Bottom buting iron 7 assembles with lower seat flange 18 outer ring close contact and is connected with lower bottom base 9, the cylindrical ring body that the iron material matter annular solid that this bottom buting iron 7 is rectangle by 2 or 4 identical transversal surfaces forms, this cylindrical ring body internal diameter equals the external diameter of lower seat flange 18, the difference of its external diameter and internal diameter is 80 to 100mm, makes bottom buting iron 7 fit closely over lower seat flange 18 outer ring and deviates from a side of hoisting crane pedestal one end end face by it near lower bottom base 9 and lower bottom base 9 is welded and fixed; Interior contact friction cover 11 is the steel matter hollow cylindrical body that external diameter is corresponding to outer contacting friction sleeve 10 internal diameter, internal diameter is corresponding with lower seat stay bearing plate 19 external diameter, steel type be 42CrMo (GB/T3077-1999, this interior contact friction cover 11 is by interference fit between its inner peripheral surface and lower seat stay bearing plate 19 outer wall surface of lower seat 9; One end that second end cap 14 and lower seat stay bearing plate 19 deviate from lower bottom base 5 is connected; Contact friction cover in lower pivot 11 is socketed in the outer contacting friction sleeve 10 of upper pivot, make two lower pivot in cantilever core structure form one with upper pivot, thus realization carries the function of hoisting crane lateral loading.
The centrally-pivoted axle device of aforesaid argosy revolution class hoisting crane, wherein: described upper bed-plate 4 for internal diameter be 4902mm, external diameter is 5578mm, and thickness is the metal material torus of 60mm; Upper seat flange 15 is internal diameters is 4902mm, and external diameter is 5368mm, and thickness is the metal material torus of 60mm; This upper seat flange 15 is arranged on the end face that upper bed-plate 4 deviates from crane rotation platform one end, and on the two mating surfaces along its center of gyration distribution diameter be 5234mm circumferentially equidistantly join brill 36 M56 bolts hole, fix for making upper bed-plate 4 and upper seat flange 15 by bolt; Upper seat stay bearing plate 16 is overall diameters is 4902mm, and interior diameter is 4824mm, and thickness is the metal material cylinder-like body of 670mm; The diameter compatible that upper seat stay bearing plate 16 passes through its external diameter and upper seat flange 15 closes to be installed, and adopts weld seam that the two is integrally connected; Upper seat gusset 17 is the rectangular leg-of-mutton metal material plate bodys of section, the two right angle length of sides of the metal material plate body of this right-angled triangle are 524mm and 212mm respectively, thickness is 50mm, its long square edge and upper seat stay bearing plate 16 sidewall weld are fixed, and the side end face that short square edge and upper seat flange 15 deviate from upper bed-plate 4 is welded and fixed; The top buting iron 6 of the assembling of this upper seat flange 15 outer ring and its close contact, the cylindrical ring body that the iron material matter annular solid that this top buting iron 6 is rectangle by 2 or 4 identical transversal surfaces forms, this cylindrical ring body internal diameter equals the external diameter of upper seat flange 15, for 5368mm, external diameter is 5468mm, makes top buting iron 6 fit closely over upper seat flange 15 outer ring and deviates from a side of crane rotation platform one end end face by it near upper bed-plate 4 and upper bed-plate 4 is welded and fixed; Outer contacting friction sleeve 10 is by interference fit between its outer peripheral surface and upper seat stay bearing plate 16 inner peripheral surface of upper seat 8; This outer contacting friction sleeve 10 is external diameters is 4824mm, internal diameter is 4664mm, height is the steel matter hollow circular cylinder of 500mm, steel type be 45 (GB/T699-1999, it is by interference fit between outer peripheral surface and upper seat stay bearing plate 16 inner peripheral surface of upper seat 8; First end cap 13 is external diameters is 4920mm, and internal diameter is the hollow flange dish of 4500mm, and it is circular seam that the outer rim place of this hollow flange rim circumferencial direction is provided with section; First end cap 13 and upper seat stay bearing plate 16 are connected towards one end of upper bed-plate 4 by the bolt group that circumferentially diameter is 4860mm; Oil drain pan 12 is annular arrangement open recess, and this toroidal cavity internal diameter is corresponding to the external diameter of lower seat stay bearing plate 19, and external diameter is corresponding to the internal diameter of upper seat stay bearing plate 16; One end that open end and the upper seat stay bearing plate 16 of oil drain pan 12 deviate from upper bed-plate 4 is connected, and the first end cap 13 is connected with upper seat stay bearing plate 16 one end towards upper bed-plate 4; Packing seal is cylindrical ring body, and sealing pad is arranged in the gap location that oil drain pan 12 contacts with lower seat stay bearing plate 19; Upper bed-plate 4 end face is connected with bottom crane rotation platform 1;
Described lower bottom base 5 for internal diameter be 4500mm, external diameter is 5280mm, and thickness is the metal material torus of 60mm; Lower seat flange 18 is internal diameters is 4500mm, and external diameter is 5100mm, and thickness is the metal material torus of 60mm; This lower seat flange 18 is arranged on the end face that lower bottom base 5 deviates from hoisting crane pedestal one end, and on the two mating surfaces along its center of gyration distribution diameter be 4880mm circumferentially equidistantly join brill 36 M56 bolts hole, fix for making lower bottom base 5 and lower seat flange 18 by bolt; Lower seat stay bearing plate 19 is external diameters is 4500mm, and internal diameter is 4380mm, and thickness is the metal material cylinder-like body of 1328mm; Lower seat flange 18 to be matched with the external diameter of lower seat stay bearing plate 19 by its internal diameter and installs, and adopts weld seam that the two is integrally connected; Outside lower seat, gusset 20 is the rectangular leg-of-mutton metal material plate bodys of section, the two right angle length of sides of the metal material plate body of this right-angled triangle are 488mm and 250mm respectively, thickness is 50mm, its long square edge and lower seat stay bearing plate 19 sidewall weld are fixed, and the side end face that short square edge and lower seat flange 18 deviate from lower bottom base 5 is welded and fixed; Inside lower seat, gusset 21 is the rectangular metal material plate bodys of section, two length of sides that this rectangular metal material plate body is adjacent are 600mm and 360mm respectively, thickness is 50mm, and lower seat stay bearing plate 19 inwall of one of them long 600mm limit and lower seat 9 is welded and fixed; The bottom buting iron 7 of the assembling of this lower seat flange 18 outer ring and its close contact, the cylindrical ring body that the iron material matter annular solid that this bottom buting iron 7 is rectangle by 2 or 4 identical transversal surfaces forms, this cylindrical ring body internal diameter equals the external diameter of lower seat flange 18, for 5100mm, external diameter is 5200mm, makes bottom buting iron 7 fit closely over lower seat flange 18 outer ring and deviates from a side of hoisting crane pedestal one end end face by it near lower bottom base 5 and lower bottom base 5 is welded and fixed; Interior contact friction cover 11 is by interference fit between its inner peripheral surface and lower seat stay bearing plate 19 outer peripheral surface of lower seat 9; This interior contact friction cover 11 is external diameters is 4660mm, internal diameter is 4480mm, height is the steel matter hollow circular cylinder of 500mm, the model of steel be 42CrMo (GB/T3077-1999, it is by interference fit between inner peripheral surface and lower seat stay bearing plate 19 outer peripheral surface of lower seat 9; Second end cap 14 is external diameters is 4550mm, and internal diameter is the hollow flange dish of 4230mm, and it is circular seam that the outer rim place of this hollow flange rim circumferencial direction is provided with section; One end that second end cap 14 and lower seat stay bearing plate 19 deviate from lower bottom base 5 is connected, and the bolt group that the second end cap 14 is 4430mm by circumferentially diameter is arranged on the lower seat stay bearing plate 19 of lower seat 9;
Interior contact friction cover 11 is socketed in the outer contacting friction sleeve 10 of upper pivot, make two lower pivot in cantilever core structure form one with upper pivot, thus realization carries the function of hoisting crane lateral loading.
The centrally-pivoted axle device of aforesaid argosy revolution class hoisting crane, wherein: the inner peripheral surface of described outer contacting friction sleeve is as contact surface, and this contact surface section is in the circular arc to contact surface outer lug; The outer peripheral surface of described interior contact friction cover is contact surface, and this contact surface section is circular arc to contact surface indent and corresponding with the protruding circular arc of outer contacting friction sleeve contact surface.
The centrally-pivoted axle device of aforesaid argosy revolution class hoisting crane, wherein: described match with upper seat the outer contacting friction sleeve 10 that assembles and the sidewall of the upper seat stay bearing plate 16 of upper seat 8 arrange lubrication hydraulic fluid port respectively along its short transverse, interference fit between this outer contacting friction sleeve 10 outer peripheral surface with upper seat stay bearing plate 16 inner peripheral surface and make both lubricate hydraulic fluid port is relative to be communicated with.
Owing to needing internally, between the mating surfaces of outer contacting friction sleeve, coating lubricating oil is to improve load-carrying capacity, and outer contacting friction sleeve and be arranged in outside with the upper seat of its outer peripheral surface phase interference fit, so need unifiedly to arrange lubrication hydraulic fluid port to the two; Lubricating oil can be applied between the mating surfaces of inside and outside contact friction cover from outside by lubrication hydraulic fluid port like this.
The centrally-pivoted axle device of aforesaid argosy revolution class hoisting crane, wherein: described packing seal material is half common and braid wool felt.
The beneficial effect of the centrally-pivoted axle device of the utility model argosy revolution class hoisting crane is: the flange plate outer ring of upper seat and lower seat is respectively fitted with top buting iron and bottom buting iron; The lateral loading of complete machine is transmitted by buting iron, to ensure that the attachment bolt of two bearing flanges and turn table and hoisting crane pedestal only plays the role of positioning, and does not bear lateral loading.The face that contacts with each other of outer contacting friction sleeve and interior contact friction cover adopts the arcuate surface of evagination and indent respectively, can reduce the sliding-frictional resistance between two contact frictions covers and can improve both antiwear property.Upper seat and lower seat end face assemble end cap respectively, can prevent two contact friction cover end float misalignments.Its structure design compact and reasonable, highly less, the moment of flexure that horizontal force produces can be reduced, to bear larger side to load; The friction coefficient of pivoting friction pair is little, reduces steering resistance; Friction pair has aligning performance, can compensate installation error; Easy to maintenance, manufacturing cost is lower.
Accompanying drawing explanation
Fig. 1 is the installation site schematic diagram of the utility model at complete machine.
Fig. 2 is the utility model integral structure schematic diagram.
Fig. 3 is the utility model spatial structure decomposing schematic representation.
Fig. 4 is the utility model upper seat spatial structure decomposing schematic representation.
Fig. 5 is the utility model lower seat spatial structure decomposing schematic representation.
Fig. 6 the utility model integral structure cut-away view.
Major label description in figure:
Gusset inside gusset, 21 lower seats outside contact friction cover, 12 oil drain pans, 13 first end caps, 14 second end caps, 15 upper seat flanges, 16 upper seat stay bearing plates, 17 upper seat gussets, 18 lower seat flanges, 19 lower seat stay bearing plates, 20 lower seats in 1 turn table, 2 centrally-pivoted axle devices, 3 hoisting crane pedestals, 4 upper bed-plates, 5 lower bottom bases, 6 top buting iron, 7 bottom buting iron, 8 upper seats, 9 lower seats, 10 outer contacting friction sleeves, 11
Detailed description of the invention
As shown in Figure 1, centrally-pivoted axle device of the present utility model is applicable to argosy revolution class hoisting crane.Centrally-pivoted axle device 2 is arranged between turn table 1 and hoisting crane pedestal 3, by respectively and crane rotation platform and hoisting crane pedestal fixes the contact action between the upper cantilever arm core structure of installation and lower sleeve portion formula structure and the lateral loading of turning round suffered by class hoisting crane passes to hoisting crane pedestal by turn table by argosy.
As shown in Figures 2 to 5, the utility model integral central pivot device is divided into upper and lower two parts.The upper bed-plate 4 of upper pivot is positioned at the top, and its end face and crane rotation platform 1 bottom welding are fixed; Sequence of erection is: (1) is at crane rotation platform 1 bottom welding upper bed-plate 4.(2) after upper seat flange 15 outside face of the other end and upper seat 8 that deviate from crane rotation platform 1 at upper bed-plate 4 contacts, again on the two mating surfaces along its center of gyration distribution diameter be 5234mm circumferentially equidistantly join brill 36 M56 bolts hole, fix for making upper bed-plate 4 and upper seat flange 15 by bolt.(3) toric top buting iron 6 inner ring and upper seat flange 15 outer ring are installed in flush fit mode, then top buting iron 6 and upper bed-plate 4 are welded and fixed.(4) cylindrical outer contacting friction sleeve 10 outer ring and upper seat stay bearing plate 16 inner ring are installed in flush fit mode.(5) anchor ring with hollow circular ring shape first end cap 13 of arc-shaped convex seam and upper seat stay bearing plate 16 are connected after annulus end face contacts towards one end of upper bed-plate 4, then by the two being located by connecting fixing in both mating surfacess circumferential bolt group.
First end cap 13 is all connected with upper seat stay bearing plate 16 with oil drain pan 12.First end cap 13 is connected with upper seat stay bearing plate 16 one end towards upper bed-plate 4, is arranged on the upper end of upper seat stay bearing plate 16; One end that open end and the upper seat stay bearing plate 16 of oil drain pan 12 deviate from upper bed-plate 4 is connected, and is arranged on the lower end of upper seat stay bearing plate 16.Sealing arrangement is the packing seal in circular body, is arranged between the annular arrangement open recess internal diameter of oil drain pan 12 and the annular arrangement external diameter of lower seat stay bearing plate 19.Sequence of erection first the first end cap 13 is connected with upper seat stay bearing plate 16, guarantees the location that outer contacting friction sleeve 10 and upper seat stay bearing plate 16 are being gone up in the axial direction thus.Oil drain pan 12 is after upper pivot and lower pivot all install, be connected with upper seat stay bearing plate 16 again, guarantee to take up the lubricating oil between inside diameter surface and the external diameter surface of interior contact friction cover 11 spreading upon outer contacting friction sleeve 10 thus, avoid this centrally-pivoted axle device of outflow of lubrication oil.One end that open end and the upper seat stay bearing plate 16 of oil drain pan 12 deviate from upper bed-plate 4 is connected, and is arranged on the below of outer contacting friction sleeve 10 and interior contact friction cover 11, is also arranged in the below of the first end cap 13 and the second end cap 14 simultaneously along center of gyration axis direction.
As shown in Figures 2 to 5, the lower bottom base 5 of lower pivot is positioned at bottom, and its bottom surface and hoisting crane pedestal 3 welded top are fixed; Lower pivot sequence of erection is: (1) is at hoisting crane pedestal 3 welded top lower bottom base 5.(2) after lower seat flange 18 outside face of the other end and lower seat 9 that deviate from hoisting crane pedestal 3 at lower bottom base 5 contacts, again on both mating surfacess along its center of gyration distribution diameter be 4880mm circumferentially equidistantly join brill 36 M56 bolts hole, fix for making lower bottom base 5 and lower seat flange 18 by bolt.(3) bottom buting iron 7 inner ring of annular arrangement and lower seat flange 18 outer ring flush fit are installed, then bottom buting iron 7 and lower bottom base 5 are welded and fixed.(4) 11 inner rings are overlapped in columniform interior contact friction and lower seat stay bearing plate 19 outer ring flush fit is installed.(5) after the ring textures of the second end cap 14 of hollow circular ring shape with arc-shaped convex seam and the annulus end contact of lower seat stay bearing plate 19, then by the two being located by connecting fixing in both mating surfacess circumferential bolt group.
As shown in Figure 3, the whole centrally-pivoted axle device of the utility model is that upper pivot and lower pivot two parts are installed by the mode of socket mutually, is enclosed within upper pivot by lower pivot; Upper pivot and lower pivot are that the socket contact between outer contacting friction sleeve 10 and interior contact friction cover 11 of being installed respectively by both realizes carrying the function of hoisting crane lateral loading.
The utility model is by respectively and crane rotation platform and hoisting crane pedestal fixes the contact action between the upper cantilever arm core structure of installation and lower sleeve portion formula structure and the lateral loading of turning round suffered by class hoisting crane passes to hoisting crane pedestal by turn table by argosy.
In the present embodiment, upper seat 8 is made up of a upper seat stay bearing plate 16, upper seat flange 15 and 36 upper seat gussets 17; Lower seat 9 is welded to each other by gusset 21 inside gusset 20 outside a lower seat flange 18, lower seat stay bearing plate 19,36 lower seats and 36 lower seats and forms.
The cover of contact friction outside 10 arranges lubrication hydraulic fluid port with upper seat 8 is unified, after outer contacting friction sleeve 10 with the upper seat stay bearing plate 16 phase location and installation in upper seat 8, start boring, till getting into the inner peripheral surface of outer contacting friction sleeve 10 at the lateral wall of upper seat stay bearing plate 16 always.
After upper pivot and lower pivot are socketed, oil drain pan is in the below being along the circumferential direction arranged in outer contacting friction sleeve 10 and interior contact friction cover 11; In addition, oil drain pan 12 is external diameters is 4800 ± 10mm, and internal diameter is for being 4600 ± 10mm, and the degree of depth is the toroidal cavity of 190mm; Oil drain pan 12 and lower seat stay bearing plate 19 contact gap place are provided with packing seal, and sealing pad is half common and braid wool felt.
Upper seat 8 and lower seat 9 end face assemble the first end cap 13 and the second end cap 14 respectively, for preventing the end float misalignment of two contact friction covers.Wherein, first end cap 13 is external diameters is 4920mm, internal diameter is the hollow flange dish of 4500mm, it is circular seam that the outer rim place of this hollow flange rim circumferencial direction is provided with section, first end cap 13 and upper seat stay bearing plate 16 are connected, for preventing the end float misalignment of outer contacting friction sleeve 10 towards one end of upper bed-plate 4 by the bolt group that circumferentially diameter is 4860mm; Second end cap 14 is external diameters is 4550mm, and internal diameter is the hollow flange dish of 4230mm, and it is circular seam that the outer rim place of this hollow flange rim circumferencial direction is provided with section; The bolt group that one end that second end cap 14 and lower seat stay bearing plate 19 deviate from lower bottom base 5 is 4430mm by circumferentially diameter is installed, for preventing the end float misalignment of interior contact friction cover 11.
The centrally-pivoted axle device of argosy revolution class hoisting crane of the present utility model is a kind of load assembly, during use, upper pivot and lower pivot are arranged on crane rotation platform and hoisting crane pedestal respectively, namely by the contact action between the cantilever core structure of upper and lower part, the lateral loading of hoisting crane are passed to hoisting crane pedestal.
Principle of work of the present utility model:
The utility model is the upper bed-plate 4 by welding mutually with crane rotation platform 1, forms upper cantilever arm core structure together with the top buting iron 6 welded with upper bed-plate 4 phase and the upper seat 8 contacted with top buting iron 6 and the outer contacting friction sleeve 10 that connects with upper seat 8 phase interference fit; By the lower bottom base 5 welded mutually with hoisting crane pedestal 3, the bottom buting iron 7 welded with lower bottom base 5 phase and the lower seat 9 contacted with bottom buting iron 7 and in connecting with lower seat 9 phase interference fit contact friction overlap 11 together with form lower cantilever core structure, upper and lower part cantilever core structure is contacted by outer contacting friction sleeve 10 and interior contact friction cover 11.When crane rotation, crane rotation platform 1 drives upper seat 8 and outer contacting friction sleeve 10 to rotate, and lower seat 9 and interior contact friction cover 11 are fixed on hoisting crane pedestal 3, two friction sleeves relatively rotate, and are coated with grease to reduce friction drag between friction sleeve.When argosy revolution class hoisting crane is subject to lateral loading at work, by the contact action between the cantilever core structure of upper and lower part, the lateral loading of complete machine is passed to hoisting crane pedestal.
The contact surface of outer contacting friction sleeve adopts the contact surface of the face of cylinder and interior contact friction cover to adopt outside contact friction to overlap contact surface direction and forms arc-shaped convex face, make inside and outside contact friction overlap the friction pair formed and there is aligning performance, installation error can be compensated, to increase the two friction pair carrying engagement capacity formed and to reduce assembly difficulty.
Transmit lateral loading by top buting iron 6 and bottom buting iron 7, can ensure between upper seat 8 and crane rotation platform 1, and the connection between lower seat 9 and hoisting crane pedestal only plays the role of positioning, and do not bear lateral loading impact.
The effect of lubrication hydraulic fluid port is that lubricating oil is introduced the device needing to apply lubricating oil position.
The effect of oil drain pan and sealing arrangement is the device stoping outflow of lubrication oil.
Two end caps are all hollow circular ring bodies that outer rim place is provided with the protruding seam of circular cross-section, and end cap effect is used to the end float misalignment stopping that inside and outside contact friction is overlapped.
The utility model has the advantages that: the utility model is a kind of centrally-pivoted axle device of rotary crane, be applicable in argosy revolution class hoisting crane.Adopt upper cantilever arm core structure and lower sleeve portion formula structure, realize by both contact actions the function transmitting complete machine lateral loading.Because contact action position is between turn table and hoisting crane pedestal, thus the lateral loading ranging coverage of upper and lower two cantilever cylinders apart from respective plane of weakness is reduced, reduce the flexure stress at respective plane of weakness place, improve the loaded state of centrally-pivoted axle device; The friction coefficient of pivoting friction pair is little, can reduce steering resistance; Friction pair has aligning performance, can compensate installation error; Compact conformation is reasonable, is convenient to maintaining, and low cost of manufacture; Also there is the features such as load-carrying capacity is large, own wt is light, economy and practicality better.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.