CN117533936B - Lifting appliance for large gear ring pit furnace - Google Patents
Lifting appliance for large gear ring pit furnace Download PDFInfo
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- CN117533936B CN117533936B CN202311723055.0A CN202311723055A CN117533936B CN 117533936 B CN117533936 B CN 117533936B CN 202311723055 A CN202311723055 A CN 202311723055A CN 117533936 B CN117533936 B CN 117533936B
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- assembly
- chassis
- calibration
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- 125000006850 spacer group Chemical group 0.000 claims abstract description 70
- 230000000712 assembly Effects 0.000 claims abstract description 38
- 238000000429 assembly Methods 0.000 claims abstract description 38
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract description 15
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The invention relates to the field of heat treatment lifting appliances, in particular to a lifting appliance of a large gear ring pit furnace, which comprises the following components: the lifting rod assembly and the chassis assembly sleeved at the bottom of the lifting rod assembly are sleeved with a plurality of tray assemblies at intervals on the outer circle of the lifting rod assembly, the bottoms of the tray assemblies are respectively connected with a plurality of supporting spacer assemblies, the supporting spacer assemblies are respectively sleeved on the lifting rod assembly, one opposite sides of the tray assemblies are respectively in abutting connection with one ends of the corresponding supporting spacer assemblies, and the bottoms of the supporting spacer assemblies are in abutting connection with the tops of the chassis assemblies. The supporting spacer sleeve assembly supports the tray assembly, the corresponding height of the tray assembly is adjusted by increasing or reducing the number of the supporting spacer sleeve assemblies so as to place corresponding heat treatment parts, meanwhile, the self-positioning spacer sleeve assembly can improve the supporting stability and the pressure resistance of the supporting arms and the tray body, reduce the probability of fracture or deformation of the supporting arms and the tray body, and assist in supporting the supporting spacer sleeve assembly in cooperation with the supporting spacer sleeve assembly, so that the service life of the lifting appliance is prolonged.
Description
Technical Field
The invention relates to the field of heat treatment lifting appliances, in particular to a lifting appliance of a large gear ring pit furnace.
Background
Pit furnaces are heat treatment equipment for large mechanical parts and components, and pit furnace spreaders are an indispensable loading and unloading carrier.
Because the traditional sling has I-shaped or flat-plate casting structure, the heat sections are unevenly distributed, the height of the parts can not be adjusted according to the required heat treatment, the work piece can not be adjusted to a proper placement angle for heat treatment, or the heat treatment efficiency of the parts is affected, and the chassis, the tray and the like of the sling are required to bear the gravity of high temperature and the work piece in a short time, so that deformation and cracking are easy to generate, and a large amount of precious chromium-nickel heat-resistant alloy materials are consumed; and unnecessary influence can be brought to the normal production of enterprises when the lifting appliance deforms and cracks.
Disclosure of Invention
The invention mainly solves the technical problem of providing the large gear ring pit furnace lifting appliance, which is convenient for adjusting the distance between hot joints according to the height of a part to be heat treated, reduces the probability of deformation and cracking of the lifting appliance, prolongs the service life of the lifting appliance, and is also convenient for improving the heat treatment efficiency of the part.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is a large gear ring pit furnace sling, comprising: the bottom of the tray assembly is respectively connected with a plurality of supporting spacer assemblies, the supporting spacer assemblies are respectively sleeved on the boom assembly, one opposite sides of the tray assemblies are respectively in abutting connection with one ends of the corresponding supporting spacer assemblies, and the bottom ends of the supporting spacer assemblies are in abutting connection with the top of the chassis assembly;
The tray assembly comprises a tray body, annular arrays on the excircle of the tray body are provided with supporting arms, the supporting arms are adjacent to each other, tray net plates are detachably connected between the supporting arms respectively, the bottoms of the supporting arms far away from one end of the tray body are connected with a plurality of self-positioning partition members respectively, one opposite sides of the supporting arms of the tray assembly are adjacent to each other and are in abutting connection with one ends of the corresponding self-positioning partition members respectively, and the bottoms of the self-positioning partition members are in abutting connection with the tops of the chassis assembly respectively.
Through adopting above-mentioned technical scheme, support spacer subassembly and support for the tray subassembly, can adjust the corresponding height of tray subassembly through increasing or reducing its quantity simultaneously to place corresponding heat treatment part, self-align spacer piece can improve the support stability of bracket and tray body simultaneously, reduces its probability that breaks or warp takes place, and matches with the adjustment height who supports spacer subassembly, improves the heat treatment efficiency of part.
The present invention may be further configured in a preferred example to: the boom assembly comprises a boom body, an annular clamping groove is formed in the top end of the outer circle of the boom body, a limiting disc is connected to the bottom end of the boom body, and at least one limiting calibration strip is connected to the outer circle of the boom body.
Through adopting above-mentioned technical scheme, the outside driving of being convenient for of annular clamping groove or fork truck hoist and mount the body of rod, spacing calibration strip and tray subassembly and chassis subassembly assorted simultaneously prevent dislocation when assembling.
The present invention may be further configured in a preferred example to: two U-shaped supporting blocks are respectively installed on two sides of each supporting arm at intervals in a staggered mode, the U-shaped supporting blocks are respectively arranged in opposite directions, one sides of the U-shaped supporting blocks, which are opposite to each other, are respectively flush with the top and the bottom of each supporting arm, two L-shaped supporting plates are respectively symmetrically installed at the included angles of each supporting arm and the corresponding tray body, the opening ends of the U-shaped supporting blocks are respectively flush with the outer surfaces of the L-shaped supporting plates, the U-shaped supporting blocks further comprise supporting ribs I arranged between the adjacent supporting arms, one ends of the supporting ribs I are respectively detachably connected in the U-shaped supporting blocks with the upward opening, the top of the opening ends of the U-shaped supporting blocks are flush with the top of the supporting ribs I, the tray screen is located at the top of the supporting ribs I, limiting parts are respectively arranged at two ends of one side, which are far away from the tray body, of the tray screen is respectively located on the supporting ribs I, the U-shaped supporting blocks are respectively located in the projection of the limiting parts, the top of the tray screen is flush with the top of each supporting arm, the supporting arms are respectively, the inner circle of the tray body is provided with a limiting calibration groove which is matched with the limiting calibration groove which is formed in the alignment.
Through adopting above-mentioned technical scheme, the first assembly of supporting rib is in U type riding block, the support of the tray net board at its top is stable, prevent its atress thermal deformation, simultaneously the chassis body can two-sided use, can turn over the assembly after its uses a period and continue to use, and also turn over the use with the tray net board that corresponds, reduce the probability of the deformation fracture of tray subassembly, and prolong the life of hoist, spacing alignment groove one and spacing alignment bar mutually match simultaneously, guarantee to keep at the coplanar between the adjacent bracket, so that self-align spacer piece supports the assistance.
The present invention may be further configured in a preferred example to: the chassis assembly comprises a chassis body, annular grooves matched with limiting plates are formed in the bottom of an inner cavity of the chassis body, limiting calibration grooves matched with limiting calibration strips are formed in the inner circle of the chassis body at intervals, a plurality of supporting arms are arranged on the outer circle of the chassis body in an annular array mode, supporting ribs II are arranged between the supporting arms in an adjacent mode, two sides, far away from one end of the chassis body, of the supporting arms are respectively connected with U-shaped supporting blocks, an L-shaped supporting plate II is respectively connected with the two sides of the end of the chassis body, the opening ends of the U-shaped supporting blocks are upwards arranged, the tops of the U-shaped supporting blocks are flush with the tops of the supporting arms, one ends of the supporting ribs II are detachably connected in the U-shaped supporting blocks respectively, the tops of the supporting ribs II are flush with the tops of the L-shaped supporting blocks respectively, the chassis screen is located on the second supporting ribs, the bottom of the chassis screen is in abutting connection with the second supporting ribs, limiting portions are respectively formed in two ends of one side, which is far away from the chassis body, the U-shaped supporting blocks are respectively located in the second limiting portions, and the tops of the chassis screen is flush with the tops of the supporting arms when the screen is respectively installed on the second supporting ribs.
Through adopting above-mentioned technical scheme, spacing calibration groove two and spacing calibration strip mutually support, guarantee that the tray body of chassis body and its top matches, make trailing arm and support arm be in the coplanar to self-align spacer member supports support arm and trailing arm and assists, in the supporting rib two assembly to U type supporting shoe simultaneously, improve the support stability and the anti deformability of chassis web board, reduce its probability of warping the fracture, and prolong its life.
The present invention may be further configured in a preferred example to: the self-positioning spacer comprises a positioning pipe body and connecting rings respectively connected to the top and the bottom of the positioning pipe body, two calibration blocks are symmetrically arranged on opposite sides of the connecting rings respectively, two calibration holes matched with the calibration blocks are symmetrically formed in the connecting rings, the two calibration holes and the two calibration blocks are respectively and vertically arranged in a crossed mode, reinforcing ribs I are arranged on an annular array on the outer circle of the positioning pipe body, two ends of the reinforcing ribs I are respectively connected with the connecting rings, a plurality of notch I are respectively arranged on the outer circle of the positioning pipe body in a spaced mode, the notch I is respectively staggered with the reinforcing ribs I, calibration mounting through holes I matched with the calibration blocks are respectively formed in the top of the supporting arms, and calibration mounting through holes II matched with the calibration blocks are respectively formed in the top of the supporting arms.
Through adopting above-mentioned technical scheme, two adjacent self-align spacer members can be installed through calibration hole and calibration piece and aim at, be convenient for support the support to opposite bracket, can also support between support arm and the bracket simultaneously, improve its compressive capacity and anti deformability, in addition, set up the strengthening rib one and still can further improve its structural strength.
The present invention may be further configured in a preferred example to: the support spacer assembly comprises a support tube and annular plates respectively connected to the top and the bottom of the support tube, reinforcing ribs II are arranged on an outer circle of the support tube in an annular array mode, the top and the bottom of the reinforcing ribs II are respectively connected with the annular plates, a plurality of notch II are arranged on the outer circle of the support tube at intervals, the notch II is respectively arranged with the reinforcing ribs II in a staggered mode, and a limiting calibration groove III matched with the limiting calibration strip is formed in an inner circle of the support tube.
Through adopting above-mentioned technical scheme, stay tube and annular plate cooperate, support tray subassembly to under spacing calibration groove three and spacing calibration strip mutually support, spacing spacer subassembly is supported, makes it keep corresponding angle, supports the tray subassembly at its top, can also increase or reduce according to the height of part, with the height of its thermal treatment of adaptation.
The present invention may be further configured in a preferred example to: the chassis body and the outer circle of the tray body are provided with a plurality of stress release openings at intervals.
By adopting the technical scheme, the stress relief port improves the bearing pressure and the compressive resistance of the chassis body and the tray body.
The present invention may be further configured in a preferred example to: the bottom end of one side of the supporting arm far away from the chassis body is an upward inclined edge.
By adopting the technical scheme, the loaded gravity at the bottom of the chassis body is reduced.
The present invention may be further configured in a preferred example to: the tray screen plate and the chassis screen plate are honeycomb plates.
By adopting the technical scheme, the production cost can be saved under the condition of ensuring the stability of the bearing parts.
In summary, the invention comprises at least one of the following large gear ring pit-type furnace crane with the following beneficial technical effects:
1. The supporting spacer sleeve assembly supports the tray assembly, and meanwhile, the corresponding height of the tray assembly can be adjusted by increasing or reducing the number of the supporting spacer sleeve assembly so as to place corresponding heat treatment parts, meanwhile, the self-positioning spacer sleeve assembly can improve the supporting stability and the pressure resistance of the supporting arms and the tray body, reduce the probability of fracture or deformation of the supporting arms and the tray body, and assist in supporting the supporting spacer sleeve assembly in cooperation with the supporting spacer sleeve assembly, so that the service life of the lifting appliance is prolonged.
2. The first supporting rib can improve the support stability of the tray net plate after being assembled on the U-shaped supporting block, can control the stress thermal deformation of the tray net plate greatly, meanwhile, the chassis body can be used in double sides, after the tray net plate is used for a period of time, the tray net plate can be turned over for assembly to be used continuously, the corresponding tray net plate is turned over for use, the probability of deformation and cracking of the tray assembly is reduced, the service life of the lifting appliance is prolonged, the first limiting calibration groove is matched with the limiting calibration strip, the adjacent supporting arms can be kept on the same plane, and the self-positioning spacer sleeve piece can be used for auxiliary support.
3. After the second limiting calibration groove is matched with the first limiting calibration strip, the supporting arm and the supporting arm are in the same plane, so that the self-positioning spacer component can assist in supporting the supporting arm and the supporting arm, meanwhile, the second supporting rib is assembled into the U-shaped supporting block, the supporting stability and deformation resistance of the chassis net plate can be improved, the deformation and cracking probability of the chassis net plate is reduced, and the service life of the chassis net plate is prolonged.
4. The self-positioning spacer member can be installed and aligned through the calibration holes and the calibration blocks, so that the overall stability of the self-positioning spacer member after installation is improved, opposite supporting arms are supported conveniently, the bearing capacity of the self-positioning spacer member is improved, and meanwhile, the support arm and the supporting arms can be supported, and the compression resistance and deformation resistance of the self-positioning spacer member are improved.
5. And the third limit calibration groove is matched with the third limit calibration strip, so that the supporting spacer assemblies are limited, the adjacent supporting spacer assemblies keep corresponding angles, the tray assemblies at the tops of the adjacent supporting spacer assemblies are supported, and the heights of the parts can be increased or reduced according to the heights of the parts so as to adapt to the heat treatment heights of the parts.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of the construction of the boom assembly of FIG. 1;
FIG. 3 is a schematic view of the tray assembly of FIG. 1;
FIG. 4 is a schematic view of the tray body of FIG. 3;
FIG. 5 is a schematic view of the chassis assembly of FIG. 1;
FIG. 6 is a schematic view of the structure of the novel chassis body of FIG. 5;
FIG. 7 is a schematic view of the self-positioning spacer of FIG. 1;
FIG. 8 is a schematic view of the support spacer assembly of FIG. 1;
FIG. 9 is a schematic diagram of the structure of the tray screen of the present invention;
FIG. 10 is a schematic view of the structure of the chassis screen of the present invention;
FIG. 11 is a schematic view of a first embodiment of a brace bar of the present invention;
fig. 12 is a schematic structural view of a second supporting rib of the present invention.
In the figure: 10. a boom assembly; 20. a chassis assembly; 30. a tray assembly; 40. supporting the spacer assembly; 5. a stress relief port;
11. A rod body; 12. an annular clamping groove; 13. a limiting disc; 14. limiting and calibrating strips;
21. a chassis body; 22. an annular groove; 23. a limiting calibration groove II; 24. a support arm; 25. a second supporting rib; 26. a U-shaped supporting block; 27. an L-shaped supporting plate II; 28. a chassis screen; 29. a second limiting part; 2a, calibrating a second mounting through hole;
31. a tray body; 32. a bracket arm; 33. a tray screen; 34. self-positioning spacer members; 35. u-shaped supporting blocks; 36. an L-shaped supporting plate I; 37. a first supporting rib; 38. a first limiting part; 39. a first limit calibration groove; 3a, calibrating a first mounting through hole;
41. A support tube; 42. an annular plate; 43. a second reinforcing rib; 44. a notch II; 45. a limit calibration groove III;
341. positioning the pipe body; 342. a connecting ring; 343. a calibration block; 344. calibrating the hole; 345. a first reinforcing rib; 346. notch one.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
The drawings are simplified schematic views, and only the basic structure of the present invention is schematically described, so that only the constitution related to the present invention is shown.
1-12, A large gear ring pit furnace sling disclosed by the invention comprises the following components: the lifting rod assembly 10 and the chassis assembly 20 sleeved at the bottom of the lifting rod assembly 10 are sleeved with a plurality of tray assemblies 30 at intervals on the outer circle of the lifting rod assembly 10, the bottoms of the tray assemblies 30 are respectively connected with a plurality of supporting spacer assemblies 40, the supporting spacer assemblies 40 are respectively sleeved on the lifting rod assembly 10, the lifting rod assembly 10 comprises a rod body 11, an annular clamping groove 12 is formed in the top end of the outer circle of the rod body 11, a limiting disc 13 is connected to the bottom end of the rod body 11, at least one limiting calibration strip 14 is connected to the outer circle of the rod body 11, one opposite side of each tray assembly 30 is respectively in abutting connection with one end of the corresponding supporting spacer assembly 40, the bottom end of each bottom supporting spacer assembly 40 is in abutting connection with the top of the chassis assembly 20, each tray assembly 30 comprises a tray body 31, a plurality of supporting arms 32 are annularly arranged on the outer circle of the tray body 31, a plurality of self-positioning spacer assemblies 34 are respectively connected between the adjacent supporting arms 32 in a detachable mode, one opposite side of the supporting arms 32 is respectively in abutting connection with one end of the corresponding self-positioning spacer assemblies 34, and the bottom ends of the corresponding self-positioning spacer assemblies 34 are respectively in abutting connection with the bottom ends of the corresponding tray assemblies 30; the body of rod 11 is preferably 310S material and makes, adopts whole forging, and its intensity is high, can bear higher pulling force, be difficult for deformation and fracture, improves the security of jib subassembly 10, and tray body 31 and bracket 32 are integrated into one piece structure, guarantees its self structural strength, and the cross-section of spacing dish 13 is the toper simultaneously, improves the assembly efficiency with chassis subassembly 20, can also guarantee that its bottom and chassis subassembly 20 are in the coplanar and keep level, and the appearance of chassis subassembly 20 and tray subassembly 30 is circular, and tray body 31 comprises the annular steel of three different diameters to connect at annular steel interconnect a plurality of fixed muscle respectively, and this fixed muscle not only can guarantee the overall structure stability of tray body 31, still makes its stress obtain releasing.
Referring to fig. 1, 3,4, 9 and 11, two sides of the supporting arm 32 are respectively provided with two U-shaped supporting blocks 35 in a staggered manner at intervals, the U-shaped supporting blocks 35 are respectively arranged in opposite directions, one opposite sides of the U-shaped supporting blocks are respectively flush with the top and the bottom of the supporting arm 32, two L-shaped supporting plates 36 are respectively symmetrically arranged at the included angles of the supporting arm 32 and the tray body 31, the open ends of the U-shaped supporting blocks 35 are respectively flush with the outer surfaces of the L-shaped supporting plates 36, the two U-shaped supporting blocks further comprise supporting ribs 37 respectively arranged between the adjacent supporting arms 32, one ends of the supporting ribs 37 are respectively detachably connected in the U-shaped supporting blocks 35 with the top of the open ends of the U-shaped supporting blocks 35 flush with the top of the supporting ribs 37, the tray screen 33 is positioned at the top of the supporting ribs 37, one side of the tray screen 33 is respectively provided with a limiting part 38, when the tray screen 33 is respectively positioned on the supporting ribs 37, the U-shaped supporting blocks 35 are respectively positioned in the projection of the limiting part 38, the top of the tray screen 33 is flush with the inner circle 39 of the supporting arm 32, and the calibration groove 39 of the tray body is matched with the calibration groove 14; the first supporting rib 37 is I-steel, two ends of the first supporting rib are beveled edges so as to be matched with the U-shaped supporting blocks 35, meanwhile, the U-shaped supporting blocks 35 can be connected with the supporting arms 32 in a mode of welding in the adjacent forward and reverse directions, after the first supporting rib 37 is assembled into the U-shaped supporting blocks 35, the supporting stability of the tray net plate 33 can be improved, meanwhile, the chassis body 21 can be used in double sides, and as the U-shaped supporting blocks 35 are oppositely arranged respectively, the first supporting rib 37 can be assembled and used after the U-shaped supporting blocks are turned over for use, the corresponding tray net plate 33 is turned over for use, and the micro deformation of the lifting appliance can be adjusted by the self by the turning over under the high-temperature environment, so that the matching of the turned over tray net plate 33 is not influenced in design.
Referring to fig. 1, fig. 5, fig. 6, fig. 10 and fig. 12, the chassis assembly 20 comprises a chassis body 21, an annular groove 22 matched with the limiting disc 13 is formed in the bottom of an inner cavity of the chassis body 21, a second limiting calibration groove 23 matched with the limiting calibration strip 14 is formed in the inner circle of the chassis body 21 at intervals, a plurality of supporting arms 24 are annularly arranged on the outer circle of the chassis body 21, the bottom end of one side of each supporting arm 24 far away from the chassis body 21 is an inclined upward bevel edge, supporting ribs 25 are respectively arranged between the adjacent supporting arms 24, two sides of one end of each supporting arm 24 far away from the chassis body 21 are respectively connected with a U-shaped supporting block 26, an L-shaped supporting plate 27 is respectively connected at the included angle of the chassis body 21 and the supporting arms 24, the opening end of each U-shaped supporting block 26 is upwards arranged, the top of each supporting rib is flush with the top of each supporting plate 24, one end of each supporting rib 25 is detachably connected in each U-shaped supporting block 26, the top of each supporting rib is flush with the top of each supporting rib 28, each supporting rib 28 is positioned on the supporting rib 25, the bottom of each supporting rib is connected with the corresponding supporting rib 25, and the two supporting ribs 28 are respectively flush with the top of the supporting ribs 28; the number of the supporting arms 24 corresponds to the material conveying of the supporting arms 32, preferably 6-8, the stress release space of the lifting appliance is increased, the deformation and cracking tendency of the chassis assembly 20 are reduced, the service life of the lifting appliance is prolonged, compared with a traditional heavy tool, the total weight of the tool is greatly reduced, precious chromium-nickel heat-resistant alloy materials are saved, a large amount of energy sources are saved, the chassis assembly 21 and the supporting arms 24 are of an integrated structure, the structural rigidity is improved, in addition, the supporting ribs 25 are I-shaped steel, the two ends of the supporting ribs are beveled edges to be matched with the U-shaped supporting blocks 26, the bottom end of one side, far away from the chassis assembly 21, of the supporting arms 24 is beveled upwards, the weight of the chassis assembly 20 can be effectively reduced, the limiting calibration groove 23 and the limiting calibration strip 14 are mutually matched, the chassis assembly 21 is limited, the corresponding supporting arms 24 and the corresponding supporting arms 32 are adjusted to corresponding angles, so that the supporting ribs 24 and the supporting arms 32 are supported in an auxiliary mode by the self-positioning spacer 34, and the supporting stability and the deformation resistance of the chassis 28 can be improved when the supporting ribs 25 are assembled into the U-shaped supporting blocks 26.
Referring to fig. 1 and 7, the self-positioning spacer 34 includes a positioning tube 341 and a connecting ring 342 connected to the top and bottom of the positioning tube 341, two calibration blocks 343 are symmetrically installed on opposite sides of the connecting ring 342, two calibration holes 344 matching with the calibration blocks 343 are symmetrically opened on the connecting ring 342, the two calibration holes 344 and the two calibration blocks 343 are respectively and vertically crossed, a reinforcing rib I345 is annularly arranged on the outer circle of the positioning tube 341, two ends of the reinforcing rib I345 are respectively connected with the connecting ring 342, a plurality of notches I346 are respectively spaced on the outer circle of the positioning tube 341, the notches I346 are respectively staggered with the reinforcing rib I345, a first calibration installation through hole 3a matching with the calibration blocks 343 is respectively opened on the top of the bracket 32, and a second calibration installation through hole 2a matching with the calibration blocks 343 is respectively opened on the top of the supporting arm 24; alignment holes 344 and alignment blocks 343; the number of the reinforcing ribs 345 is preferably not less than 4, and when the tray assembly 30 is assembled or the tray assembly 30 and the chassis assembly 20 are assembled, the self-positioning spacer 34 is installed and aligned through the alignment holes 344 and the alignment blocks 343, so that auxiliary support is carried out below the supporting arms 32, and the bearing capacity, the compression resistance and the deformation resistance of the self-positioning spacer are improved.
Referring to fig. 1 and 8, the supporting spacer assembly 40 comprises a supporting tube 41 and an annular plate 42 respectively connected to the top and the bottom of the supporting tube 41, reinforcing ribs II 43 are annularly arranged on the outer circle of the supporting tube 41, the top and the bottom of the reinforcing ribs II 43 are respectively connected with the annular plate 42, a plurality of notches II 44 are formed on the outer circle of the supporting tube 41 at intervals, the notches II 44 are respectively staggered with the reinforcing ribs II 43, and a limiting calibration groove III 45 matched with the limiting calibration strip 14 is formed in the inner circle of the supporting tube 41; the number of the reinforcing ribs II 43 is preferably 6, the overall structural strength of the supporting spacer assembly 40 is improved, the supporting spacer assembly 40 is sleeved on the outer circle of the rod body 11 through the mutual matching of the limiting calibration groove III 45 and the limiting calibration strip 14, the supporting of the tray assembly 30 can be achieved, and the height of the parts can be increased or reduced according to the height of the parts so as to adapt to the heat treatment height of the parts.
Referring to fig. 1 and 3-6, the chassis body 21 and the outer circumference of the tray body 31 are provided with a plurality of stress relief openings 5 at intervals; the stress relief opening 5 on the chassis body 21 is arranged between the L-shaped support plates II 27, and the stress relief opening 5 on the tray body 31 is arranged between the L-shaped support plates I36, so that the space for stress relief of the chassis body 21 and the tray body 31 is increased, and the overall stability of the structure is improved.
Referring to fig. 1, 3, 5, 9 and 10, the tray mesh plate 33 and the chassis mesh plate 28 are both honeycomb plates; the adoption of the honeycomb plate mechanism can save the production cost under the condition of ensuring the stability of the bearing parts.
The implementation principle of the embodiment is as follows: when in use, a worker is sleeved on the rod body 11 by sleeving the chassis assembly 20 on the rod body 11 through equipment such as a crane, the bottom of the chassis body 21 is limited through the second limiting calibration groove 23 and the second limiting calibration groove 14, the limiting disc 13 is matched with the annular groove 22 so as to calibrate the tray assembly 30, then a corresponding number of supporting spacer assemblies 40 are selected according to the part height required for heat treatment, the supporting spacer assemblies 40 are sleeved on the outer circle of the rod body 11 in a limiting mode through the third limiting calibration groove 45 and the second limiting calibration groove 14, each supporting spacer assembly 40 corresponds, the self-positioning spacer assemblies 34 are sequentially arranged in the second calibrating and mounting through holes 2a of the supporting arms 24, the calibrating blocks 343 correspond to the second calibrating and mounting through holes 2a, the corresponding height of the self-positioning spacer assemblies 34 is flush with the height of the supporting spacer assemblies 40, the vertical position of each self-positioning spacer assembly 34 is correspondingly arranged, the tray body 31 is then installed on the corresponding supporting spacer assembly 40 by means of crane and other equipment, in the installation process, the supporting arms 32 and the supporting arms 24 are respectively and vertically symmetrically arranged by the mutual matching of the limiting calibration strips 14 and the limiting calibration grooves 39, the first calibration installation through holes 3a and the calibration blocks 343 are mutually matched to support the outer side of the tray assembly 30 in an auxiliary manner, the installation procedures of the supporting spacer assembly 40 and the self-positioning spacer assembly 34 are sequentially repeated, the corresponding tray body 31 is assembled, after the main structure is assembled, the two ends of the supporting ribs 25 are sequentially installed on the corresponding U-shaped supporting blocks 26, the chassis screen 28 is assembled at the top of the supporting ribs, the supporting ribs 37 are assembled in the corresponding U-shaped supporting blocks 35, the tray screen 33 is assembled at the top of the supporting ribs, the top of the chassis assembly 20 and the tray assembly 30 tend to be in a horizontal state, then, the traveling crane is matched with the annular clamping groove 12 at the top of the rod body 11, so that the chassis body 21 is located on the furnace base of the pit furnace, parts to be processed are sequentially placed on the chassis assembly 20 and the tray assembly 30, heat treatment is carried out through the pit furnace, and after the tray assembly is used for a period of time, the tray assembly 30 can be turned over for assembly, so that the tray assembly can carry out self-adjustment on self micro-deformation.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (5)
1. A large ring gear pit furnace spreader comprising: the lifting rod assembly (10) and the chassis assembly (20) sleeved at the bottom of the lifting rod assembly, a plurality of tray assemblies (30) are sleeved on the outer circle of the lifting rod assembly (10) at intervals, a plurality of supporting spacer assemblies (40) are respectively connected to the bottom of the tray assemblies (30), the supporting spacer assemblies (40) are respectively sleeved on the lifting rod assembly (10), one opposite sides of the tray assemblies (30) are respectively in abutting connection with one ends of the corresponding supporting spacer assemblies (40), and the bottom ends of the supporting spacer assemblies (40) at the bottom are in abutting connection with the top of the chassis assembly (20);
The tray assembly (30) comprises a tray body (31), a plurality of self-positioning partition members (34) are respectively connected to the bottoms of one ends of the tray arms (32) far away from the tray body (31), one opposite sides of the tray arms (32) of the adjacent tray assembly (30) are respectively in abutting connection with one ends of the corresponding self-positioning partition members (34), and the bottoms of the self-positioning partition members (34) are respectively in abutting connection with the tops of the chassis assembly (20);
the boom assembly (10) comprises a boom body (11), an annular clamping groove (12) is formed in the top end of the outer circle of the boom body (11), a limiting disc (13) is connected to the bottom end of the boom body (11), and at least one limiting calibration strip (14) is connected to the outer circle of the boom body (11);
two U-shaped supporting blocks (35) are respectively arranged at two sides of the supporting arm (32) in a staggered way, the U-shaped supporting blocks (35) are respectively and oppositely arranged, one opposite sides of the U-shaped supporting blocks are respectively flush with the top and the bottom of the supporting arm (32), two L-shaped support plates I (36) are symmetrically arranged at the included angle between the bracket arm (32) and the tray body (31), the opening ends of the U-shaped supporting blocks (35) are respectively flush with the outer surface of the L-shaped supporting plate I (36), and also comprise supporting ribs I (37) respectively arranged between the adjacent supporting arms (32), one end of the first supporting rib (37) is detachably connected in the U-shaped supporting block (35) with the upward opening, the top of the opening end of the U-shaped supporting block (35) is flush with the top of the first supporting rib (37), the tray net plate (33) is positioned at the top of the first supporting rib (37), two ends of one side of the tray screen plate (33) far away from the tray body (31) are respectively provided with a first limiting part (38), when the tray net plates (33) are respectively positioned on the first supporting ribs (37), the U-shaped supporting block (35) is positioned in the first limiting part (38), and the top of the tray screen (33) is flush with the top of the bracket arm (32), a first limit calibration groove (39) matched with the limit calibration strip (14) is formed in the inner circle of the tray body (31);
The chassis assembly (20) comprises a chassis body (21), annular grooves (22) matched with a limiting disc (13) are formed in the bottom of an inner cavity of the chassis body (21), limiting calibrating grooves (23) matched with limiting calibrating strips (14) are formed in the inner circle of the chassis body (21) at intervals, a plurality of supporting arms (24) are annularly arranged on the outer circle of the chassis body (21), supporting ribs (25) are respectively arranged between the supporting arms (24) adjacently, U-shaped supporting blocks (26) are respectively connected to two sides of one end of the supporting arms (24) far away from the chassis body (21), L-shaped supporting plates (27) are respectively connected to the included angles between the chassis body (21) and the supporting arms (24), the opening ends of the U-shaped supporting blocks (26) are upwards arranged and the tops of the U-shaped supporting blocks are flush with the tops of the supporting arms (24), one ends of the supporting ribs (25) are respectively detachably connected in the U-shaped supporting blocks (26), the tops of the supporting ribs are respectively flush with the tops of the L-shaped supporting plates (27), the net plates (28) are respectively arranged on two sides of the supporting plates (21) far away from the chassis (29), the U-shaped supporting blocks (26) are respectively positioned in the second limiting parts (29), and when the chassis screen plates (28) are respectively arranged on the second supporting ribs (25), the tops of the chassis screen plates (28) are flush with the tops of the supporting arms (24);
The self-positioning spacer (34) comprises a positioning pipe body (341) and a connecting ring (342) which is respectively connected to the top and the bottom of the positioning pipe body, two calibration blocks (343) are respectively symmetrically arranged on opposite sides of the connecting ring (342), two calibration holes (344) matched with the calibration blocks (343) are symmetrically arranged on the connecting ring (342), the two calibration holes (344) and the two calibration blocks (343) are respectively and vertically arranged in a crossing mode, reinforcing ribs (345) are arranged on an annular array on the outer circle of the positioning pipe body (341), two ends of each reinforcing rib (345) are respectively connected with the connecting ring (342), a plurality of notch (346) are respectively arranged on the outer circle of the positioning pipe body (341) in a spacing mode, the notch (346) is respectively arranged in a staggered mode with the reinforcing ribs (345), a calibration installation through hole (3 a) matched with the calibration block (343) is respectively arranged on the top of the supporting arm (32), and a calibration installation through hole (2 a) matched with the calibration block (343) is respectively arranged on the top of the supporting arm (24).
2. The large gear ring pit furnace lifting appliance according to claim 1, wherein the supporting spacer assembly (40) comprises a supporting tube (41) and annular plates (42) respectively connected to the top and the bottom of the supporting tube, reinforcing ribs II (43) are arranged on an outer circle of the supporting tube (41) in an annular array mode, the top and the bottom of the reinforcing ribs II (43) are respectively connected with the annular plates (42), a plurality of notch II (44) are arranged on the outer circle of the supporting tube (41) in a spaced mode, the notch II (44) is respectively arranged with the reinforcing ribs II (43) in a staggered mode, and limiting calibration grooves III (45) matched with the limiting calibration strips (14) are formed in the inner circle of the supporting tube (41).
3. A large gear ring pit furnace sling as defined in claim 1 wherein the chassis body (21) is provided with a plurality of stress relief openings (5) spaced from the outer circumference of the tray body (31).
4. A large ring gear pit furnace spreader according to claim 1, wherein the bottom end of the side of the support arm (24) remote from the chassis body (21) is a sloping upward side.
5. A large ring gear pit furnace spreader according to claim 1, wherein the pallet screen (33) and the chassis screen (28) are both honeycomb panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311723055.0A CN117533936B (en) | 2023-12-14 | 2023-12-14 | Lifting appliance for large gear ring pit furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311723055.0A CN117533936B (en) | 2023-12-14 | 2023-12-14 | Lifting appliance for large gear ring pit furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117533936A CN117533936A (en) | 2024-02-09 |
| CN117533936B true CN117533936B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311723055.0A Active CN117533936B (en) | 2023-12-14 | 2023-12-14 | Lifting appliance for large gear ring pit furnace |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051463A (en) * | 2009-10-29 | 2011-05-11 | 徐青春 | Hanger device for pit furnace |
| KR20150071614A (en) * | 2013-12-18 | 2015-06-26 | 홍성직 | Internal connection of grapple center shaft and hydraulic hose |
| CN209759518U (en) * | 2019-01-25 | 2019-12-10 | 科能亚太铸造（武汉）有限公司 | tool for pit furnace casting |
| CN209923390U (en) * | 2019-04-23 | 2020-01-10 | 科能亚太铸造（武汉）有限公司 | Well type furnace forging and casting tool |
| CN210506447U (en) * | 2019-09-16 | 2020-05-12 | 重庆清平机械有限责任公司 | Tool for heat treatment of thin-wall ring parts |
| CN219860069U (en) * | 2023-05-04 | 2023-10-20 | 上海振华港机重工有限公司 | Well type carburizing furnace heat treatment lifting appliance for rim |
-
2023
- 2023-12-14 CN CN202311723055.0A patent/CN117533936B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051463A (en) * | 2009-10-29 | 2011-05-11 | 徐青春 | Hanger device for pit furnace |
| KR20150071614A (en) * | 2013-12-18 | 2015-06-26 | 홍성직 | Internal connection of grapple center shaft and hydraulic hose |
| CN209759518U (en) * | 2019-01-25 | 2019-12-10 | 科能亚太铸造（武汉）有限公司 | tool for pit furnace casting |
| CN209923390U (en) * | 2019-04-23 | 2020-01-10 | 科能亚太铸造（武汉）有限公司 | Well type furnace forging and casting tool |
| CN210506447U (en) * | 2019-09-16 | 2020-05-12 | 重庆清平机械有限责任公司 | Tool for heat treatment of thin-wall ring parts |
| CN219860069U (en) * | 2023-05-04 | 2023-10-20 | 上海振华港机重工有限公司 | Well type carburizing furnace heat treatment lifting appliance for rim |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117533936A (en) | 2024-02-09 |
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