CN104400311B - Electric shovel rod coupling tunnel scene locating and repairing device and field repairing method thereof - Google Patents
Electric shovel rod coupling tunnel scene locating and repairing device and field repairing method thereof Download PDFInfo
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- CN104400311B CN104400311B CN201410624294.5A CN201410624294A CN104400311B CN 104400311 B CN104400311 B CN 104400311B CN 201410624294 A CN201410624294 A CN 201410624294A CN 104400311 B CN104400311 B CN 104400311B
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Abstract
The invention discloses a kind of electric shovel rod coupling tunnel scene locating and repairing device and field repairing method thereof, belong to arc welding built-up welding.The feature of this device is to be connected and composed by two positioning sleeves and connecting rod, described connecting rod two ends set the cylindrical positioning sleeve that size is identical respectively, the diameter of positioning sleeve and datum hole internal diameter are with footpath phase tight fit, and positioning sleeve length is consistent with datum hole length, and the central axis of two positioning sleeves is on the same line.Use this locating and repairing device, guarantee that the axiality of two datum holes meets harsh axiality requirement, use this location restorative procedure that the datum hole at electric shovel rod coupling tunnel is repaired, simple efficiently, repairing effect is good, it is fully achieved original design standard and technology requirement, electric shovel rod coupling tunnel is long for service life, and annual is repaired number of times and reduced, and greatly reduces labor intensity and production cost, also it is greatly shortened the power shovel repair time, ensures that mine normally produces.
Description
Technical field
The invention belongs to arc welding built-up welding, particularly relate to the coaxial locating and repairing device of electric shovel rod coupling tunnel and reparation side
Method.
Background technology
Before electric shovel rod H-shaped, weigh 15 tons more than, shovel bar front end is connected with scraper bowl, shovel rod rear end set coupling tunnel, connection
Cylinder sets datum hole, bearing pin be fixed on the pedestal of revolving dial, and shovel bar drives scraper bowl to move back and forth, and Ore scoops up loading mine car
In.Due to scraper bowl type frequently reciprocating, bearing pin friction coupling tunnel datum hole, datum hole serious wear and unbalanced, produce and lose circle, cone
Hole, saddle-shape hole etc., size exceeds standard, and causes power shovel normally to use.Currently, the method for process is, one is to change parts, lacks
Falling into is that standby redundancy expense is many, and the buyable spare parts cycle is long；Two is that datum hole breakage is repaired by scene, first datum hole is carried out mesh
Surveying, estimate, the most visually result, fray is carried out repair welding, the defect existed is that range estimation error is big, can make base during repair welding
Axle center, hole offsets, and about the coupling tunnel after more seriously repairing, the axiality of two datum holes cannot ensure, Overhaul site in addition
Not having the large-sized processing equipment being suitable for, repairing effect is poor, and service life is short, and datum hole is repaired frequently, and labor intensity is big；Transport to other places
Repairing, waste time and energy, maintenance cost is high, affects repair schedule, and then affects mine and normally produce.
Summary of the invention
In order to overcome the defect of prior art, it is an object of the invention to provide location, a kind of electric shovel rod coupling tunnel scene
Prosthetic device, it is ensured that datum hole axiality meets requirement, repairing effect is good, increases the service life, and reduces and repairs number of times, reduces work
Intensity and production cost, shorten the repair time, ensures that mine normally produces.
Electric shovel rod coupling tunnel scene locating and repairing device, including shovel bar coupling tunnel, shovel bar coupling tunnel is H-shaped, its both wings
Bottom symmetry sets the circular datum hole that size is identical, axis is consistent, is characterized in that this device is connected structure by two positioning sleeves and connecting rod
Becoming, described connecting rod two ends set the cylindrical positioning sleeve that size is identical respectively, and the diameter of positioning sleeve is mutually tight with footpath with datum hole internal diameter
Coordinating, positioning sleeve length is consistent with datum hole length, and the central axis of two positioning sleeves is on the same line.During use, by this device
Two positioning sleeves be placed in datum hole, two ends and datum hole end face, to determine datum hole abrading section, then abrading section is carried out
Repair welding.
The present invention improves further, and described positioning sleeve sets cylindrical loss of weight straight hole outside central axis, and inner side sets screw thread
Connecting hole, cylindrical loss of weight straight hole, threaded connection hole are concentric with positioning sleeve, and cylinder loss of weight straight hole bottom centre sets compasses and positions
Hole, loss of weight straight hole alleviates deadweight, and threaded connection hole installs connecting rod；It is 0 ± 0.08mm that positioning sleeve superficial tolerance requires, roughness
For Ra1.6um.
The present invention improves further, and described connecting rod two ends are with footpath and with on an axis, and it is fixed that both ends of the surface center sets compasses
Hole, position, symmetrical outside the centrage of two ends set screw thread and matches with the threaded connection hole of positioning sleeve, and the length of screw thread is more than screw thread company
Connect the degree of depth in hole, after positioning sleeve assembles with connecting rod, it is ensured that the axle center of two positioning sleeves is on the same line.
The present invention improves further, and described positioning sleeve sets cylindrical connecting hole and cylindrical loss of weight straight hole along central axis,
Concentric with positioning sleeve, cylindrical loss of weight straight hole bottom centre sets hole, compasses location；In connecting rod, symmetry sets flange, and flange is to corresponding
The length of end face is less than the length of positioning sleeve, and connecting rod two ends set external screw thread, and connecting rod is placed in connecting hole and straight hole, and nut is put
In straight hole, being enclosed within connecting rod, positioning sleeve is fixed by nut.
Location, a kind of electric shovel rod coupling tunnel scene restorative procedure, sequentially includes the following steps:
1, prepare before weldering
1) making locating and repairing device is cylinder according to coupling tunnel and datum hole standard size, locating and machining set, positioning sleeve
Shape, along central axis processing threaded connection hole and loss of weight upright opening, straight hole inner face sets concentric central point；Connecting rod two ends pair
Should set screw thread, connecting rod two ends suit positioning sleeve, the axis of connecting rod and positioning sleeve is on the same line；
2) simple boring machine boring machine is made by motor, variator, boring cutter bar, pivot flange, lifting type platform, adjustable
Whole base and support shank are constituted, and adjustable base sets support shank and lifting type platform, lifting type platform sets motor
And pivot flange, motor is by connecting variator, boring cutter bar；
3) making frock site setup maintenance platform, flatness is not less than 1.0mm, and platform size and taking the weight of, with shovel
The related data of bar coupling tunnel and determine；
2, shovel bar coupling tunnel handling uses truck crane handling shovel bar coupling tunnel, is placed on maintenance platform, uses very heavy topmast
Support adjusts, and carries out horizontal centering with dial gauge；
3, cleaning coupling tunnel datum hole hand grinding tool or flat chisel remove shovel bar coupling tunnel datum hole in and hole around oil, dirt,
Rust, until exposing metallic luster, and uses gasoline scrub；
4, positioning sleeve symmetry is loaded frayed datum hole, each positioning sleeve both ends of the surface and datum hole two by installing positioner
End face；
5, determine that the repair welding amount coaxial center point with positioning sleeve end face, as the center of circle, is shoveling bar coupling tunnel two respectively with compasses
End face draws the round wires of same diameter, to determine the wear extent around two datum holes, sets repair welding amount；
6, datum hole repair welding
1) E5015 welding rod, heated stove 340～about 370 DEG C baking 1.5h～2h are selected in welding rod heating, insulation, then
In being placed on heat-preserving container stand-by；
2) oxy-acetylene welding gun flame heating weld, heating-up temperature is 120～160 DEG C；
3) backing welding ￠ 3.2mm welding rod repair welding datum hole fray surface, forms transition zone；
4) built-up welding uses ￠ 4mm welding rod to carry out built-up welding, uses small area analysis built-up welding at a slow speed, to be filled up by arc crater, execute when receiving arc
Weldering electric current 100～110A；
5) heat treated at repair welding is first used oxy-acetylene welding gun to heat at repair welding by postwelding, and temperature is 600～650
DEG C, using the asbestos cloth insulation that drying processes after heating immediately, slow cooling is to room temperature；
7, the datum hole to postwelding carries out bore hole, uses self-control Boring machine processing
1) center of boring cutter bar is adjusted by lifting type platform and adjustable base, to shovel bar coupling tunnel both ends of the surface
Round wires be scribe fiducials, rotate centering by being arranged on the scriber of boring cutter bar, wait after the centering of center with the bolt handle of M16
Pivot flange is welded on shovel bar coupling tunnel and is fixed, and lifting type platform, adjustable base is adjusted and is fixed simultaneously；
2) heavy boring first draws positive rough bore respectively with the round wires pulled on two end surfaces of coupling tunnel, surplus of boxing out 1.5～
2.5mm；
3) half right boring uses machining benchmark principle each other, first with a datum hole for another datum hole of oriention benchmark hole machined,
After with the datum hole that just processed for oriention benchmark hole machined said reference hole, surplus of boxing out 0.2～0.5mm；
4) right boring hole uses machining benchmark principle each other, the most respectively two datum holes of processing, is directly processed to the chi set
Very little；
8, after handling is repaired, with truck crane, shovel bar coupling tunnel is hung maintenance platform, treat that electric shovel rod re-assemblies, adjusts
Examination.
Compared with prior art, advantage is novel, and structure letter is gathered, rationally；Use this locating and repairing device, it is ensured that two
The axiality of individual datum hole meets harsh axiality requirement, uses this location restorative procedure to the datum hole at electric shovel rod coupling tunnel
Repairing, simple efficiently repairing effect is good, is fully achieved original design standard and technology requirement, electric shovel rod coupling tunnel
Service life is long, and annual is repaired number of times and reduced, and greatly reduces labor intensity and production cost, is also greatly shortened power shovel maintenance
Time, ensure that mine normally produces.
Accompanying drawing explanation
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of electric shovel rod coupling tunnel scene locating and repairing device embodiment 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
In figure: 110-coupling tunnel, 111-circle datum hole, 120-positioning sleeve, 121a-cylinder loss of weight straight hole, 122a-screw thread
Connecting hole, 121b-cylinder loss of weight straight hole, 122b-connecting hole, 130-connecting rod, 131a-screw thread, 131b-screw thread, 132b-are convex
Edge, 133b-nut.
Detailed description of the invention
Below in conjunction with embodiment, present invention row further is described in detail.
By Fig. 1,2 it can be seen that electric shovel rod coupling tunnel scene locating and repairing device, including shovel bar coupling tunnel 110, shovel bar
Coupling tunnel is H-shaped, and its two underwings symmetry sets the circular datum hole 111 that size is identical, axis is consistent, and this device is by two positioning sleeves
120 and connecting rod 130 connect and compose, described connecting rod two ends set the cylindrical positioning sleeve that size is identical respectively, positioning sleeve straight
Footpath and datum hole internal diameter are with footpath phase tight fit, and positioning sleeve length is consistent with datum hole length, and the central axis of two positioning sleeves is with always
On line.During use, being placed in datum hole by two positioning sleeves of this device, two ends and datum hole end face, to determine datum hole wear
Position, then carries out repair welding to abrading section.
Embodiment 1
By Fig. 1 it can also be seen that described positioning sleeve 120 sets cylindrical loss of weight straight hole 121a, inner side outside central axis
If threaded connection hole 122a, cylindrical loss of weight straight hole, threaded connection hole are concentric with positioning sleeve, cylinder loss of weight straight hole bottom centre
If hole, compasses location, loss of weight straight hole alleviates deadweight, and threaded connection hole installs connecting rod；It is 0 that positioning sleeve superficial tolerance requires ±
0.08mm, roughness is Ra1.6um.
By Fig. 1 it can also be seen that described connecting rod 130 two ends are with footpath and with on an axis, both ends of the surface center sets compasses
Hole, location, symmetrical outside the centrage of two ends set screw thread 131a and matches with the threaded connection hole 121a of positioning sleeve, the length of screw thread
More than the degree of depth of threaded connection hole, after positioning sleeve assembles with connecting rod, it is ensured that the axle center of two positioning sleeves is on the same line.
Embodiment 2
By Fig. 2 it can also be seen that described positioning sleeve 120 sets cylindrical connecting hole 122b and cylindrical loss of weight along central axis
Straight hole 121b, concentric with positioning sleeve, cylindrical loss of weight straight hole bottom centre sets hole, compasses location；In connecting rod 130, symmetry sets convex
Edge 132b, the length of flange to corresponding end-faces is less than the length of positioning sleeve, and connecting rod two ends set external screw thread 131b, and connecting rod is placed in
In connecting hole and straight hole, nut 133b is placed in straight hole, is enclosed within connecting rod, and positioning sleeve is fixed by nut.
Location, a kind of electric shovel rod coupling tunnel scene restorative procedure, sequentially includes the following steps:
1, prepare before weldering
1) making locating and repairing device is according to coupling tunnel 110 and datum hole 111 standard size, according to the knot shown in embodiment 1
Composition locating and machining set 120, positioning sleeve is cylinder, along central axis processing threaded connection hole 122a and loss of weight upright opening
121a, straight hole inner face sets concentric central point；Connecting rod 130 two ends correspondence sets screw thread, connecting rod two ends suit positioning sleeve, connects
The axis of extension bar and positioning sleeve is on the same line；
2) simple boring machine boring machine is made by motor, variator, boring cutter bar, pivot flange, lifting type platform, adjustable
Whole base and support shank are constituted, and adjustable base sets support shank and lifting type platform, lifting type platform sets motor
And pivot flange, motor is by connecting variator, boring cutter bar；
3) making frock site setup maintenance platform, flatness is not less than 1.0mm, and platform size and taking the weight of, with shovel
The related data of bar coupling tunnel 110 and determine；
2, shovel bar coupling tunnel handling uses truck crane handling shovel bar coupling tunnel, is placed on maintenance platform, uses very heavy topmast
Support adjusts, and carries out horizontal centering with dial gauge；
3, cleaning coupling tunnel datum hole hand grinding tool or flat chisel remove shovel bar coupling tunnel datum hole 111 in and hole around oil,
Dirty, rust, until exposing metallic luster, and uses gasoline scrub；
4, installing positioner loads frayed datum hole, each positioning sleeve both ends of the surface and datum hole by symmetrical for positioning sleeve 120
Both ends of the surface flush；
5, determine that the repair welding amount coaxial center point with positioning sleeve 120 end face, as the center of circle, is shoveling bar coupling tunnel respectively with compasses
Both ends of the surface draw the round wires of same diameter, to determine the wear extent around two datum holes, set repair welding amount；
6, datum hole repair welding
1) E5015 welding rod, heated stove 340～about 370 DEG C baking 1.5h～2h are selected in welding rod heating, insulation, then
In being placed on heat-preserving container stand-by；
2) oxy-acetylene welding gun flame heating weld, heating-up temperature is 120～160 DEG C；
3) backing welding ￠ 3.2mm welding rod repair welding datum hole fray surface, forms transition zone；
4) built-up welding uses ￠ 4mm welding rod to carry out built-up welding, uses small area analysis built-up welding at a slow speed, to be filled up by arc crater, execute when receiving arc
Weldering electric current 100～110A；
5) heat treated at repair welding is first used oxy-acetylene welding gun to heat at repair welding by postwelding, and temperature is 600～650
DEG C, using the asbestos cloth insulation that drying processes after heating immediately, slow cooling is to room temperature；
7, the datum hole to postwelding carries out bore hole, uses self-control Boring machine processing
1) center of boring cutter bar is adjusted by lifting type platform and adjustable base, to shovel bar coupling tunnel both ends of the surface
Round wires be scribe fiducials, rotate centering by being arranged on the scriber of boring cutter bar, wait after the centering of center with the bolt handle of M16
Pivot flange is welded on shovel bar coupling tunnel and is fixed, and lifting type platform, adjustable base is adjusted and is fixed simultaneously；
2) heavy boring first draws positive rough bore respectively with the round wires pulled on two end surfaces of coupling tunnel, surplus of boxing out 1.5～
2.5mm；
3) half right boring uses machining benchmark principle each other, first with a datum hole for another datum hole of oriention benchmark hole machined,
After with the datum hole that just processed for oriention benchmark hole machined said reference hole, surplus of boxing out 0.2～0.5mm；
4) right boring hole uses machining benchmark principle each other, the most respectively two datum holes of processing, is directly processed to the chi set
Very little；
8, handling repair after, with truck crane, shovel bar coupling tunnel 110 is hung maintenance platform, treat electric shovel rod re-assembly,
Debugging.
Claims (5)
1. electric shovel rod coupling tunnel scene locating and repairing device, shovel bar coupling tunnel is H-shaped, and its two underwings symmetry sets size phase
Circular datum hole (111) same, that axis is consistent, it is characterised in that this device is connected structure by two positioning sleeves (120) and connecting rod (130)
Becoming, described connecting rod two ends set the cylindrical positioning sleeve that size is identical respectively, the diameter of positioning sleeve and circular datum hole (111) internal diameter
With footpath phase tight fit, positioning sleeve length is consistent with circular datum hole (111) length, and the central axis of two positioning sleeves is at same straight line
On.
Electric shovel rod coupling tunnel scene the most according to claim 1 locating and repairing device, it is characterised in that described positioning sleeve
(120) setting cylindrical loss of weight straight hole (121a) outside central axis, inner side sets threaded connection hole (122a), and cylindrical loss of weight is straight
Hole, threaded connection hole are concentric with positioning sleeve, and cylindrical loss of weight straight hole bottom centre sets hole, compasses location, and threaded connection hole is installed even
Extension bar；It is 0 ± 0.08mm that positioning sleeve superficial tolerance requires, roughness is Ra1.6um.
Electric shovel rod coupling tunnel scene the most according to claim 1 and 2 locating and repairing device, it is characterised in that described connection
Bar (130) two ends are with footpath and with on an axis, and both ends of the surface center sets hole, compasses location, and outside the centrage of two ends, symmetry sets screw thread
(131a) matching with the threaded connection hole (121a) of positioning sleeve, the length of screw thread is more than the degree of depth of threaded connection hole, positioning sleeve
After assembling with connecting rod, it is ensured that the axle center of two positioning sleeves is on the same line.
Electric shovel rod coupling tunnel scene the most according to claim 1 locating and repairing device, it is characterised in that described positioning sleeve
(120) cylindrical connecting hole (122b) and cylindrical loss of weight straight hole (121b) are set along central axis, concentric with positioning sleeve, cylindrical
Loss of weight straight hole bottom centre sets hole, compasses location；The upper symmetry of connecting rod (130) sets flange (132b), the length of flange to corresponding end-faces
Degree is less than the length of positioning sleeve, and connecting rod two ends set external screw thread (131b), and connecting rod is placed in connecting hole and straight hole, nut
(133b) being placed in straight hole, be enclosed within connecting rod, positioning sleeve is fixed by nut.
5. location, an electric shovel rod coupling tunnel scene restorative procedure, sequentially includes the following steps:
1), prepare before weldering
(1) locating and repairing device is made according to shovel bar coupling tunnel (110) and datum hole (111) standard size, locating and machining set
(120), positioning sleeve is cylinder, along central axis processing threaded connection hole (122a) and loss of weight upright opening (121a), in straight hole
End face sets concentric central point；Connecting rod (130) two ends correspondence sets screw thread, and connecting rod two ends suit positioning sleeve, connecting rod is with fixed
The axis of position set is on the same line；
(2) simple boring machine boring machine is made at the bottom of by motor, variator, boring cutter bar, pivot flange, lifting type platform, adjustable
Seat and support shank are constituted, and adjustable base sets support shank and lifting type platform, lifting type platform sets motor and props up
Staying is blue, and motor connects variator, boring cutter bar；
(3) making frock site setup maintenance platform, flatness is not less than 1.0mm, and platform size and taking the weight of, to shovel bar connection
Connect the related data of cylinder (110) and determine；
2), shovel bar coupling tunnel handling employing truck crane handling shovel bar coupling tunnel, be placed on maintenance platform, support with jack and adjust
Whole, carry out horizontal centering with dial gauge；
3), cleaning coupling tunnel datum hole hand grinding tool or flat chisel remove the oil in shovel bar coupling tunnel datum hole (111) and around hole, dirt,
Rust, until exposing metallic luster, and uses gasoline scrub；
4), installing positioner loads frayed datum hole, each positioning sleeve both ends of the surface and datum hole two by symmetrical for positioning sleeve (120)
End face；
5), determine that the repair welding amount coaxial center point with positioning sleeve (120) end face, as the center of circle, is shoveling bar coupling tunnel two respectively with compasses
End face draws the round wires of same diameter, to determine the wear extent around two datum holes, sets repair welding amount；
6), datum hole repair welding
(1) E5015 welding rod, heated stove 340～about 370 DEG C baking 1.5h～2h are selected in welding rod heating, insulation, are then placed on
In heat-preserving container stand-by；
(2) oxy-acetylene welding gun flame heating weld, heating-up temperature is 120～160 DEG C；
(3) backing welding ￠ 3.2mm welding rod repair welding datum hole fray surface, forms transition zone；
(4) built-up welding uses ￠ 4mm welding rod to carry out built-up welding, uses small area analysis built-up welding at a slow speed, to be filled up by arc crater when receiving arc, welding electricity
Stream 100～110A；
(5) heat treated at repair welding is first used oxy-acetylene welding gun to heat at repair welding by postwelding, and temperature is 600～650 DEG C, adds
Using the asbestos cloth insulation that drying processes after heat immediately, slow cooling is to room temperature；
7), the datum hole of postwelding is carried out bore hole, employing self-control Boring machine processing
(1) center of boring cutter bar is adjusted by lifting type platform and adjustable base, to shovel bar coupling tunnel both ends of the surface
Round wires is scribe fiducials, rotates centering by being arranged on the scriber of boring cutter bar, with the bolt of M16 propping up after waiting center centering
Staying orchid is welded on shovel bar coupling tunnel and is fixed, and lifting type platform, adjustable base is adjusted and is fixed simultaneously；
(2) heavy boring first draws positive rough bore respectively with the round wires pulled on two end surfaces of coupling tunnel, surplus of boxing out 1.5～2.5mm；
(3) half right borings use machining benchmark principle each other, first with a datum hole for another datum hole of oriention benchmark hole machined, after with
The datum hole just processed is oriention benchmark hole machined said reference hole, surplus of boxing out 0.2～0.5mm；
(4) right boring hole uses machining benchmark principle each other, the most respectively two datum holes of processing, is directly processed to the size set；
8), handling repair after, with truck crane will shovel bar coupling tunnel (110) hang maintenance platform, treat that electric shovel rod re-assemblies, adjusts
Examination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624294.5A CN104400311B (en) | 2014-11-10 | Electric shovel rod coupling tunnel scene locating and repairing device and field repairing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624294.5A CN104400311B (en) | 2014-11-10 | Electric shovel rod coupling tunnel scene locating and repairing device and field repairing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104400311A CN104400311A (en) | 2015-03-11 |
| CN104400311B true CN104400311B (en) | 2017-01-04 |
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Effective date of registration: 20200622 Address after: 243000 Nanshan Avenue, Xiangshan Town, Yushan District, Ma'anshan City, Anhui Province Co-patentee after: Anhui Maanshan Iron and Steel Mining Resources Group Co.,Ltd. Patentee after: Anhui Masteel mining resources group Nanshan Mining Co., Ltd Address before: 243000 Anhui city of Ma'anshan province Jiuhua Mountain Rain Road No. 8 Co-patentee before: MAANSHAN IRON & STEEL Co.,Ltd. Patentee before: MAGANG (GROUP) HOLDING Co.,Ltd. |