CN102717232B - Manufacturing method for half liner in head sheave of large-sized elevator - Google Patents
Manufacturing method for half liner in head sheave of large-sized elevator Download PDFInfo
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- CN102717232B CN102717232B CN201210176252.0A CN201210176252A CN102717232B CN 102717232 B CN102717232 B CN 102717232B CN 201210176252 A CN201210176252 A CN 201210176252A CN 102717232 B CN102717232 B CN 102717232B
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Abstract
The invention discloses a machining method for a half liner in a head sheave device of a large-sized elevator. The machining method comprises a blank forming stage and a product machining stage, wherein during the blank forming stage, firstly, two full-circle blanks are cast; secondly, the two full-circle blanks are respectively cut into two half liner blanks, the stress is released and two pairs of half lines are respectively welded to form a full-circle liner; and during product machining stage, firstly, two full-circle liners are welded together for integrally machining; and secondly, the two full-circle liners are detached. The manufacturing method disclosed by the invention is mainly used for machining two pair of half liners which are used in pairs in the head sheave device of the large-sized elevator; and according to the manufacturing method, the machining precision and deformation control of the two pair of half liners can be effectively ensured and the wall thickness consistency of two pairs of half liners is ensured.
Description
Technical field
The invention belongs to field of machining and machinebuilding technology technology, relate in particular to the processing method of halfliner in a kind of large-scale hoister head sheave apparatus.
Background technology
Mine hoist is the throat equipment of mining, is bearing the vital task that mineral between aboveground down-hole, equipment, material and personnel carry, and its performance quality is very important for Mine Safety in Production; And between loose wheel wheel hub and day wheel shaft, two pairs of halfliners are installed in the head sheave apparatus of mine hoist, and play lubricated and reduce the effect of friction, after assembling, require bearing shell and a day wheel shaft contacts with wheel hub well even.
Present stage, the production and processing of halfliner normally adopts and two halfliners are combined into a full circle process, this method is divided into again two kinds of situations: 1) full circle casting blank, full circle blank is carried out to machining, after completing, then full circle is cut into two halfliners, this processing method easily makes workpiece produce distortion, shape, size impact to halfliner are larger, are difficult for assembling, and serviceability is general, 2) full circle casting blank, first full circle blank is cut into two halfliner blanks, discharge stress, and then two halfliner blanks are welded into full circle carry out again machining, after completing, again this full circle is cut, this processing method can guarantee that two halfliner wall thickness of processing are consistent in pairs, but because halfliner wall thickness all has certain tolerance, cannot be worked into absolute dimension, therefore be difficult to guarantee that another two the halfliner wall thickness that use in pairs with it are consistent, particularly be applied to two pairs of halfliners on more than 5 meters large-scale hoister sky wheel shaft, therefore, the also imperfection of this processing method of halfliner, a problem demanding prompt solution to the improvement of halfliner manufacturing technology.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides the processing method of halfliner in a kind of large-scale hoister head sheave apparatus, the method, mainly for the processing of two pairs of halfliners that use in pairs in large-scale hoister head sheave apparatus, can effectively be improved machining accuracy, the Deformation control of two pairs of halfliners and guarantee that the wall thickness of two pairs of halfliners is consistent.
The processing method of halfliner in a kind of large-scale hoister head sheave apparatus, comprise blank formative stage and product process segment, in blank formative stage, first cast two full circle blanks, then two full circle blanks are cut into respectively to two halfliner blanks, i.e. halfliner A and B, halfliner C and D, discharge stress, then two pairs of halfliner blanks be welded into respectively to full circle bearing shell, it is characterized in that: the described product process segment specifically comprises the following steps:
A, car full circle bearing shell, the smaller diameter end end face of two full circle bearing shells that are finally welded in car blank formative stage respectively on vertical car, and stay allowance and technique allowance; Press figure paper size, the flange excircle of two full circle bearing shells of car and larger diameter end end face, and the tolerance that guarantees flange excircle diameter is 0 to-0.1mm; The smaller diameter end end face turner skill inner stopper of the full circle bearing shell that halfliner A and B are combined into, the smaller diameter end end face turner skill male half coupling of the full circle bearing shell that halfliner C and D are combined into;
B, mark signature center line, draw full circle bearing shell cross centre line and cause groove on flange excircle by axial faying face position;
C, stroke full circle bearing shell screwed hole line, get two of molds, be respectively used to two full circle bearing shells, when use, locate with mold inner stopper, groove on the center groove of mold and the flange excircle of full circle bearing shell aligns, and clamping, on the flange of full circle bearing shell, join and draw a screwed hole by the position, hole on mold, and do the paired mark of mold and corresponding full circle bearing shell;
D, brill tapping hole, bore screwed hole the tapping on full circle bearing shell flange by joining the screwed hole line of drawing in c step;
E, installation clamping fixture, align two mold full circle bearing shells of being made with paired mark corresponding to it respectively by paired mark, and tight with screw handle; Technique seam on two full circle bearing shell smaller diameter end end faces is mutually aligned and installed, and weld, form girth seam;
F, finish turning, endoporus, cylindrical and the flange small end end face of two full circle bearing shells that are installed together in vertical car is got on the bus e step, after size is qualified, girth seam car between two full circle bearing shells is fallen, take into two full circle bearing shells apart, do respectively the paired mark of halfliner A and halfliner C, halfliner B and halfliner D, and the technique seam that staggers;
G, press figure paper size, respectively the smaller diameter end end face of two full circle bearing shells of car;
The axial weld seam on two full circle bearing shells is opened in h, milling, does the paired mark of halfliner A and B, halfliner C and D;
I, press figure paper size, bore the screwed hole expanding in d step, and tapping.
The processing method of halfliner in described large-scale hoister head sheave apparatus, in its blank formative stage, pincers worker is by halfliner A and B, halfliner C and D make respectively paired mark, and two pairs of halfliners are placed on platform, level up, the faying face of four halfliners of reconditioning, and the faying face of halfliner A and B is pressed close to, the faying face of halfliner C and D is pressed close to, on the cylindrical of two pairs of described halfliners faying face position each other, flange small end end face, flange excircle, endoporus, spot welding welds, and forms axial weld seam.
Owing to adopting foregoing invention object, the present invention has following superiority:
1, can guarantee the wall thickness uniformity of two pairs of halfliners that use in pairs, because endoporus, the cylindrical of two pairs of halfliners that use are in pairs combined a turning and are completed, the uniformity of wall thickness is not affected by the dimensional tolerance of endoporus, cylindrical, so make to assemble between rear 4 halfliners and day wheel shaft and wheel hub, contact even.
2, can effectively control distortion, owing to first cutting after full circle casting, fully discharge stress, fully spot-welded togetherly again after distortion combine processing, Deformation control before the process segment, greatly reduce the distortion after processing, thereby controlled the deflection after processing.
3, significantly improved the machining accuracy of two pairs of halfliners, in process, two double liner wall thickness that processing method of the present invention can effectively guarantee to use are in pairs consistent, consistent size, form and position tolerance between two pairs of halfliner flange faces is consistent, reduce the distortion after processing, thereby can significantly improve the machining accuracy of two pairs of halfliners.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of halfliner;
Fig. 2 is the structural representation of halfliner;
Fig. 3 is the full circle bearing shell processing structure schematic diagram of halfliner A and halfliner B composition;
Fig. 4 is the full circle bearing shell processing structure schematic diagram of halfliner C and halfliner D composition;
Fig. 5 is the structural representation of mold;
Fig. 6 be that in e step, two full circle bearing shells weld together overall structure schematic diagram;
In figure: 1-halfliner A; 2-halfliner C; 3-halfliner B; 4-halfliner D; 5-wheel hub; 6-day wheel shaft; 7-smaller diameter end end face; 8-cylindrical; 9-flange small end end face; 10-flange excircle; 11-larger diameter end end face; 12-endoporus; 13-faying face; 14-mold; 15-axially weld seam; 16-girth seam.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Take the head sheave apparatus of 5.7 meters of multi-rope friction hoisting machines as example, this head sheave apparatus is made up of three loose wheels and a fast pulley, the maximum outside diameter of loose wheel is 5958mm, between its wheel hub 5 and day wheel shaft 6, be equipped with 4 halfliners, as shown in Figure 1, 2, halfliner blank is copper casting, requires contact between 4 halfliners and wheel hub and day wheel shaft even.The flange excircle diameter of halfliner is Φ 1100mm, on flange face, there are 8-Φ 22x Φ 35 stepped holes, cylindrical is Φ 960mm, tolerance is-0.06mm is to-0.11, endoporus is Φ 900mm, tolerance is+0.14 to 0mm, endoporus has helical oil groove, if adopt single-piece work halfliner, the thickest allowable error of 4 halfliners can reach 0.19mm, cannot reach between 4 halfliners and wheel hub and day wheel shaft and contact evenly, and use out of order, therefore adopt a pair of two halfliners combination processing using in groups, the wall thickness of realizing 4 halfliners is consistent; The process of 4 halfliners is divided into blank formative stage and product process segment, and its concrete steps comprise:
(1) blank formative stage
The casting of a, blank full circle, two halfliner A and B are combined into a full circle casting, and halfliner C and D are combined into a full circle casting, and lengthen 25mm at smaller diameter end end face 7 position blanks, cast two full circle bearing shell blanks;
Full circle blank is opened in b, milling, and two equal millings of full circle blank are split into two halfliners, i.e. halfliner A 1 and halfliner B 3, and halfliner C 2 and halfliner D 4, and respectively to halfliner A 1 and halfliner B 3, halfliner C 2 and halfliner D 4 do paired mark;
C, by halfliner A and B, halfliner C and D respectively correspondence be welded into a full circle bearing shell; Pincers worker is placed on two pairs of halfliners of paired mark on platform, level up, the faying face 13 of four halfliners of reconditioning, and the faying face of halfliner A and B is pressed close to, the faying face of halfliner C and D is pressed close to, on the cylindrical 8 of two pairs of described halfliners faying face position each other, flange small end end face 9, flange excircle 10, endoporus 12, spot welding welds, and forms axial weld seam 15.
(2) the product process segment
A, car full circle bearing shell, as shown in Figure 3, Figure 4, two full circle bearing shells described in difference car (1)-c step on vertical car, the smaller diameter end end face 7 of two full circle bearing shells of car, and stay allowance and technique allowance; Press figure paper size, the flange excircle 10 of two full circle bearing shells of car and larger diameter end end face 11, and guarantee that the diameter of flange excircle 10 is Φ 1100mm, and tolerance is 0 to-0.1mm; The technique inner stopper that the smaller diameter end end face car degree of depth of the full circle bearing shell that halfliner A and B are combined into is 15mm, the technique male half coupling that the smaller diameter end end face car degree of depth of the full circle bearing shell that halfliner C and D are combined into is 15mm;
B, mark signature center line, draw full circle bearing shell cross centre line and cause groove on flange excircle 10 by axial faying face 13 positions;
C, stroke full circle bearing shell screwed hole line, get 14 two of molds, a full circle bearing shell being combined into for two halfliner A and B, a full circle bearing shell being combined into for two halfliner C and D, when use, locate with mold inner stopper and full circle bearing shell flange excircle 10, on mold 14 center groove and bearing shell flange excircle, groove aligns, clamping, on bearing shell, join and draw screwed hole by position, hole on mold 14, and do the paired mark of mold and corresponding full circle bearing shell; The position, hole of mold processes by position, position, two halves bearing shell hole, 16 holes are of a size of Φ 20x Φ 35mm, the dark 25mm of Φ 35mm, use respectively again mold with addition of each hole on the corresponding full circle bearing shell of work, be used for connecting mold and full circle bearing shell, full circle bearing shell upper screwed hole is 16-M18, note the relative position of Kong Weiyu faying face on two halves bearing shell, and does the paired mark of mold and full circle bearing shell.
D, brill tapping hole, bore the 16-M18 screwed hole on full circle bearing shell flange by joining the screwed hole line of drawing in (2)-c step, and tapping;
E, installation clamping fixture, as shown in Figure 5, Figure 6, the full circle bearing shell that mold 14 and two halfliner A and B are combined into aligns by paired mark, and with screw tight; The full circle bearing shell that another mold and two halfliner C and D are combined into aligns by paired mark, and with screw tight; The technique male half coupling of the full circle bearing shell of the technique inner stopper of the full circle bearing shell of halfliner A and B composition and halfliner C and D composition is mutually aligned and installed, and weld, form girth seam 16;
F, finish turning, endoporus 12, cylindrical and the flange small end end face 9 of two full circle bearing shells that are installed together in vertical car is got on the bus (2)-e step, after size is qualified, endoporus 12 is worn pull bar and is compressed another mold, and slow-speed of revolution car girth seam 16, falls girth seam car, take into two full circle bearing shells apart, be between halfliner A 1 and halfliner C 2, the paired mark between halfliner B 3 and halfliner D 4, notes staggering technique seam;
G, press figure paper size, respectively the smaller diameter end end face 7 of two full circle bearing shells of car and the helical oil groove of endoporus 12;
The axial weld seam 15 on two full circle bearing shells is opened in h, milling, does the paired mark between halfliner A 1 and halfliner B 3, halfliner C 2 and halfliner D 4;
I, press figure paper size, bore the screwed hole that expands M18 in (2)-d step to the stepped hole of Φ 22x Φ 35, and tapping.
Claims (2)
1. the processing method of halfliner in a large-scale hoister head sheave apparatus, comprise blank formative stage and product process segment, in blank formative stage, first cast two full circle blanks, then two full circle blanks are cut into respectively to two halfliner blanks, be halfliner A(1) and halfliner B(3), halfliner C(2) and halfliner D(4), discharge stress, again two pairs of halfliner blanks are welded into respectively to full circle bearing shell, and form respectively axial weld seam (15), it is characterized in that: the described product process segment specifically comprises the following steps:
A, car full circle bearing shell, two full circle bearing shells that are finally welded in car blank formative stage respectively on vertical car, the smaller diameter end end face (7) of two full circle bearing shells of car, and stay allowance and technique allowance; Press figure paper size, the flange excircle (10) of two full circle bearing shells of car and larger diameter end end face (11), and the tolerance that guarantees flange excircle diameter is 0 to-0.1mm; The smaller diameter end end face turner skill inner stopper of the full circle bearing shell that halfliner A and B are combined into, the smaller diameter end end face turner skill male half coupling of the full circle bearing shell that halfliner C and D are combined into;
B, mark signature center line, draw full circle bearing shell cross centre line and cause the upper groove of flange excircle (10) by axial faying face (13) position;
C, stroke full circle bearing shell screwed hole line, get (14) two of molds, be respectively used to two full circle bearing shells, when use, locate with mold inner stopper, groove on the center groove of mold and the flange excircle of full circle bearing shell aligns, and clamping, on the flange of full circle bearing shell, join and draw a screwed hole by the position, hole on mold, and do the paired mark of mold and corresponding full circle bearing shell;
D, brill tapping hole, bore screwed hole the tapping on full circle bearing shell flange by joining the screwed hole line of drawing in c step;
E, installation clamping fixture, align corresponding with it two molds (14) the full circle bearing shell that is made with paired mark respectively by paired mark, and tight with screw handle; Technique seam on two full circle bearing shell smaller diameter end end faces is mutually aligned and installed, and weld, form girth seam (16);
F, finish turning, endoporus (12), cylindrical (8) and the flange small end end face (9) of two full circle bearing shells that are installed together in vertical car is got on the bus e step, after size is qualified, girth seam (16) car between two full circle bearing shells is fallen, take into two full circle bearing shells apart, be respectively halfliner A(1) and halfliner C(2), halfliner B(3) and halfliner D(4) paired mark, and the technique seam that staggers;
G, press figure paper size, respectively the smaller diameter end end face (7) of two full circle bearing shells of car;
The axial weld seam (15) on two full circle bearing shells is opened in h, milling, is halfliner A(1) with halfliner B(3), halfliner C(2) with halfliner D(4) paired mark;
I, press figure paper size, bore the screwed hole expanding in d step, and tapping.
2. the processing method of halfliner in large-scale hoister head sheave apparatus according to claim 1, it is characterized in that: in described blank formative stage, by the halfliner A(1 being cut into) and halfliner B(3), halfliner C(2) and halfliner D(4) paired mark made respectively, and two pairs of halfliners are placed on platform, level up, the faying face (13) of four halfliners of reconditioning, and the faying face of halfliner A and B is pressed close to, the faying face of halfliner C and D is pressed close to, at the cylindrical of two pairs of described halfliners faying face position each other, flange small end end face, flange excircle, on endoporus, spot welding welds, form axial weld seam (15).
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| CN201210176252.0A CN102717232B (en) | 2012-05-31 | 2012-05-31 | Manufacturing method for half liner in head sheave of large-sized elevator |
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